mybatis 分页插件 Mybatis常用分页插件实现快速分页处理技巧

<!DOCTYPE configuration 
PUBLIC "-//mybatis.org//DTD Config 3.0//EN" 
"http://mybatis.org/dtd/mybatis-3-config.dtd"> 
<configuration> 
<!-- 全局参数 --> 
<settings> 
<!-- 使全局的映射器启用或禁用缓存。 --> 
<setting name="cacheEnabled" value="false"/> 
<!-- 全局启用或禁用延迟加载。当禁用时，所有关联对象都会即时加载。 --> 
<setting name="lazyLoadingEnabled" value="true"/> 
<!-- 当启用时，有延迟加载属性的对象在被调用时将会完全加载任意属性。否则，每种属性将会按需要加载。 --> 
<setting name="aggressiveLazyLoading" value="true"/> 
<!-- 是否允许单条sql 返回多个数据集 (取决于驱动的兼容性) default:true --> 
<setting name="multipleResultSetsEnabled" value="true"/> 
<!-- 是否可以使用列的别名 (取决于驱动的兼容性) default:true --> 
<setting name="useColumnLabel" value="true"/> 
<!-- 允许JDBC 生成主键。需要驱动器支持。如果设为了true，这个设置将强制使用被生成的主键，有一些驱动器不兼容不过仍然可以执行。 default:false --> 
<setting name="useGeneratedKeys" value="false"/> 
<!-- 指定 MyBatis 如何自动映射 数据基表的列 NONE：不隐射　PARTIAL:部分 FULL:全部 --> 
<setting name="autoMappingBehavior" value="PARTIAL"/> 
<!-- 这是默认的执行类型 （SIMPLE: 简单； REUSE: 执行器可能重复使用prepared statements语句；BATCH: 执行器可以重复执行语句和批量更新） --> 
<setting name="defaultExecutorType" value="SIMPLE"/> 
<!-- 使用驼峰命名法转换字段。 --> 
<setting name="mapUnderscoreToCamelCase" value="true"/> 
<!-- 设置本地缓存范围 session:就会有数据的共享 statement:语句范围 (这样就不会有数据的共享 ) defalut:session --> 
<setting name="localCacheScope" value="SESSION"/> 
<!-- 设置但JDBC类型为空时,某些驱动程序 要指定值,default:OTHER，插入空值时不需要指定类型 --> 
<setting name="jdbcTypeForNull" value="NULL"/> 
<setting name="logPrefix" value="dao."/> 
</settings> 
<!--别名是一个较短的Java 类型的名称 --> 
<typeAliases> 
<typeAlias type="com.store.base.model.StoreUser" 
alias="User"></typeAlias> 
<typeAlias type="com.store.base.secondmodel.pratice.model.Product" 
alias="Product"></typeAlias> 
<typeAlias type="com.store.base.secondmodel.base.Page" 
alias="Page"></typeAlias> 
</typeAliases> 
<!-- 插件配置,这边为mybatis配置分页拦截器，这个分页拦截器需要我们自己实现 --> 
<plugins> 
<plugin interceptor="com.store.base.secondmodel.base.pageinterceptor.PaginationInterceptor" /> 
</plugins> 
</configuration>

<?xml version="1.0" encoding="UTF-8" ?> 
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" > 
<mapper namespace="com.store.base.secondmodel.pratice.dao.ProductDao" > 
<sql id="baseColumns" > 
id, product_name as productName, product_no as productNo, price as price 
</sql> 
<select id="findList" resultType="com.store.base.secondmodel.pratice.model.Product"> 
select <include refid="baseColumns"/> from t_store_product 
</select> 
</mapper>

package com.store.base.secondmodel.base.pageinterceptor; 
import java.io.Serializable; 
import java.util.Properties; 
import org.apache.ibatis.logging.Log; 
import org.apache.ibatis.logging.LogFactory; 
import org.apache.ibatis.plugin.Interceptor; 
import com.store.base.secondmodel.base.Global; 
import com.store.base.secondmodel.base.Page; 
import com.store.base.secondmodel.base.dialect.Dialect; 
import com.store.base.secondmodel.base.dialect.MySQLDialect; 
import com.store.base.util.Reflections; 
/** 
* Mybatis分页拦截器基类 
* @author yiyong_wu 
* 
*/ 
public abstract class BaseInterceptor implements Interceptor, Serializable { 
private static final long serialVersionUID = 1L; 
protected static final String PAGE = "page"; 
protected static final String DELEGATE = "delegate"; 
protected static final String MAPPED_STATEMENT = "mappedStatement"; 
protected Log log = LogFactory.getLog(this.getClass()); 
protected Dialect DIALECT; 
/** 
* 对参数进行转换和检查 
* @param parameterObject 参数对象 
* @param page 分页对象 
* @return 分页对象 
* @throws NoSuchFieldException 无法找到参数 
*/ 
@SuppressWarnings("unchecked") 
protected static Page<Object> convertParameter(Object parameterObject, Page<Object> page) { 
try{ 
if (parameterObject instanceof Page) { 
return (Page<Object>) parameterObject; 
} else { 
return (Page<Object>)Reflections.getFieldValue(parameterObject, PAGE); 
} 
}catch (Exception e) { 
return null; 
} 
} 
/** 
* 设置属性，支持自定义方言类和制定数据库的方式 
* <code>dialectClass</code>,自定义方言类。可以不配置这项 
* <ode>dbms</ode> 数据库类型，插件支持的数据库 
* <code>sqlPattern</code> 需要拦截的SQL ID 
* @param p 属性 
*/ 
protected void initProperties(Properties p) { 
Dialect dialect = null; 
String dbType = Global.getConfig("jdbc.type"); 
if("mysql".equals(dbType)){ 
dialect = new MySQLDialect(); 
} 
if (dialect == null) { 
throw new RuntimeException("mybatis dialect error."); 
} 
DIALECT = dialect; 
} 
}

package com.store.base.secondmodel.base.pageinterceptor; 
import java.util.Properties; 
import org.apache.ibatis.executor.Executor; 
import org.apache.ibatis.mapping.BoundSql; 
import org.apache.ibatis.mapping.MappedStatement; 
import org.apache.ibatis.mapping.SqlSource; 
import org.apache.ibatis.plugin.Intercepts; 
import org.apache.ibatis.plugin.Invocation; 
import org.apache.ibatis.plugin.Plugin; 
import org.apache.ibatis.plugin.Signature; 
import org.apache.ibatis.reflection.MetaObject; 
import org.apache.ibatis.session.ResultHandler; 
import org.apache.ibatis.session.RowBounds; 
import com.store.base.secondmodel.base.Page; 
import com.store.base.secondmodel.base.util.StringUtils; 
import com.store.base.util.Reflections; 
/** 
* 数据库分页插件，只拦截查询语句. 
* @author yiyong_wu 
* 
*/ 
@Intercepts({ @Signature(type = Executor.class, method = "query", args = { 
MappedStatement.class, Object.class, RowBounds.class, 
ResultHandler.class }) }) 
public class PaginationInterceptor extends BaseInterceptor { 
private static final long serialVersionUID = 1L; 
@Override 
public Object intercept(Invocation invocation) throws Throwable { 
final MappedStatement mappedStatement = (MappedStatement) invocation.getArgs()[0]; 
Object parameter = invocation.getArgs()[1]; 
BoundSql boundSql = mappedStatement.getBoundSql(parameter); 
Object parameterObject = boundSql.getParameterObject(); 
// 获取分页参数对象 
Page<Object> page = null; 
if (parameterObject != null) { 
page = convertParameter(parameterObject, page); 
} 
// 如果设置了分页对象，则进行分页 
if (page != null && page.getPageSize() != -1) { 
if (StringUtils.isBlank(boundSql.getSql())) { 
return null; 
} 
String originalSql = boundSql.getSql().trim(); 
// 得到总记录数 
page.setCount(SQLHelper.getCount(originalSql, null,mappedStatement, parameterObject, boundSql, log)); 
// 分页查询 本地化对象 修改数据库注意修改实现 
String pageSql = SQLHelper.generatePageSql(originalSql, page,DIALECT); 
invocation.getArgs()[2] = new RowBounds(RowBounds.NO_ROW_OFFSET,RowBounds.NO_ROW_LIMIT); 
BoundSql newBoundSql = new BoundSql( 
mappedStatement.getConfiguration(), pageSql, 
boundSql.getParameterMappings(), 
boundSql.getParameterObject()); 
// 解决MyBatis 分页foreach 参数失效 start 
if (Reflections.getFieldValue(boundSql, "metaParameters") != null) { 
MetaObject mo = (MetaObject) Reflections.getFieldValue( 
boundSql, "metaParameters"); 
Reflections.setFieldValue(newBoundSql, "metaParameters", mo); 
} 
// 解决MyBatis 分页foreach 参数失效 end 
MappedStatement newMs = copyFromMappedStatement(mappedStatement,new BoundSqlSqlSource(newBoundSql)); 
invocation.getArgs()[0] = newMs; 
} 
return invocation.proceed(); 
} 
@Override 
public Object plugin(Object target) { 
return Plugin.wrap(target, this); 
} 
@Override 
public void setProperties(Properties properties) { 
super.initProperties(properties); 
} 
private MappedStatement copyFromMappedStatement(MappedStatement ms, 
SqlSource newSqlSource) { 
MappedStatement.Builder builder = new MappedStatement.Builder( 
ms.getConfiguration(), ms.getId(), newSqlSource, 
ms.getSqlCommandType()); 
builder.resource(ms.getResource()); 
builder.fetchSize(ms.getFetchSize()); 
builder.statementType(ms.getStatementType()); 
builder.keyGenerator(ms.getKeyGenerator()); 
if (ms.getKeyProperties() != null) { 
for (String keyProperty : ms.getKeyProperties()) { 
builder.keyProperty(keyProperty); 
} 
} 
builder.timeout(ms.getTimeout()); 
builder.parameterMap(ms.getParameterMap()); 
builder.resultMaps(ms.getResultMaps()); 
builder.cache(ms.getCache()); 
return builder.build(); 
} 
public static class BoundSqlSqlSource implements SqlSource { 
BoundSql boundSql; 
public BoundSqlSqlSource(BoundSql boundSql) { 
this.boundSql = boundSql; 
} 
@Override 
public BoundSql getBoundSql(Object parameterObject) { 
return boundSql; 
} 
} 
}

package com.store.base.secondmodel.base.pageinterceptor; 
import java.sql.Connection; 
import java.sql.PreparedStatement; 
import java.sql.ResultSet; 
import java.sql.SQLException; 
import java.util.List; 
import java.util.regex.Matcher; 
import java.util.regex.Pattern; 
import org.apache.ibatis.executor.ErrorContext; 
import org.apache.ibatis.executor.ExecutorException; 
import org.apache.ibatis.logging.Log; 
import org.apache.ibatis.mapping.BoundSql; 
import org.apache.ibatis.mapping.MappedStatement; 
import org.apache.ibatis.mapping.ParameterMapping; 
import org.apache.ibatis.mapping.ParameterMode; 
import org.apache.ibatis.reflection.MetaObject; 
import org.apache.ibatis.reflection.property.PropertyTokenizer; 
import org.apache.ibatis.scripting.xmltags.ForEachSqlNode; 
import org.apache.ibatis.session.Configuration; 
import org.apache.ibatis.type.TypeHandler; 
import org.apache.ibatis.type.TypeHandlerRegistry; 
import com.store.base.secondmodel.base.Global; 
import com.store.base.secondmodel.base.Page; 
import com.store.base.secondmodel.base.dialect.Dialect; 
import com.store.base.secondmodel.base.util.StringUtils; 
import com.store.base.util.Reflections; 
/** 
* SQL工具类 
* @author yiyong_wu 
* 
*/ 
public class SQLHelper { 
/** 
* 默认私有构造函数 
*/ 
private SQLHelper() { 
} 
/** 
* 对SQL参数(?)设值,参考org.apache.ibatis.executor.parameter.DefaultParameterHandler 
* 
* @param ps 表示预编译的 SQL 语句的对象。 
* @param mappedStatement MappedStatement 
* @param boundSql SQL 
* @param parameterObject 参数对象 
* @throws java.sql.SQLException 数据库异常 
*/ 
@SuppressWarnings("unchecked") 
public static void setParameters(PreparedStatement ps, MappedStatement mappedStatement, BoundSql boundSql, Object parameterObject) throws SQLException { 
ErrorContext.instance().activity("setting parameters").object(mappedStatement.getParameterMap().getId()); 
List<ParameterMapping> parameterMappings = boundSql.getParameterMappings(); 
if (parameterMappings != null) { 
Configuration configuration = mappedStatement.getConfiguration(); 
TypeHandlerRegistry typeHandlerRegistry = configuration.getTypeHandlerRegistry(); 
MetaObject metaObject = parameterObject == null ? null : 
configuration.newMetaObject(parameterObject); 
for (int i = 0; i < parameterMappings.size(); i++) { 
ParameterMapping parameterMapping = parameterMappings.get(i); 
if (parameterMapping.getMode() != ParameterMode.OUT) { 
Object value; 
String propertyName = parameterMapping.getProperty(); 
PropertyTokenizer prop = new PropertyTokenizer(propertyName); 
if (parameterObject == null) { 
value = null; 
} else if (typeHandlerRegistry.hasTypeHandler(parameterObject.getClass())) { 
value = parameterObject; 
} else if (boundSql.hasAdditionalParameter(propertyName)) { 
value = boundSql.getAdditionalParameter(propertyName); 
} else if (propertyName.startsWith(ForEachSqlNode.ITEM_PREFIX) && boundSql.hasAdditionalParameter(prop.getName())) { 
value = boundSql.getAdditionalParameter(prop.getName()); 
if (value != null) { 
value = configuration.newMetaObject(value).getValue(propertyName.substring(prop.getName().length())); 
} 
} else { 
value = metaObject == null ? null : metaObject.getValue(propertyName); 
} 
@SuppressWarnings("rawtypes") 
TypeHandler typeHandler = parameterMapping.getTypeHandler(); 
if (typeHandler == null) { 
throw new ExecutorException("There was no TypeHandler found for parameter " + propertyName + " of statement " + mappedStatement.getId()); 
} 
typeHandler.setParameter(ps, i + 1, value, parameterMapping.getJdbcType()); 
} 
} 
} 
} 
/** 
* 查询总纪录数 
* @param sql SQL语句 
* @param connection 数据库连接 
* @param mappedStatement mapped 
* @param parameterObject 参数 
* @param boundSql boundSql 
* @return 总记录数 
* @throws SQLException sql查询错误 
*/ 
public static int getCount(final String sql, final Connection connection, 
final MappedStatement mappedStatement, final Object parameterObject, 
final BoundSql boundSql, Log log) throws SQLException { 
String dbName = Global.getConfig("jdbc.type"); 
final String countSql; 
if("oracle".equals(dbName)){ 
countSql = "select count(1) from (" + sql + ") tmp_count"; 
}else{ 
countSql = "select count(1) from (" + removeOrders(sql) + ") tmp_count"; 
} 
Connection conn = connection; 
PreparedStatement ps = null; 
ResultSet rs = null; 
try { 
if (log.isDebugEnabled()) { 
log.debug("COUNT SQL: " + StringUtils.replaceEach(countSql, new String[]{"\n","\t"}, new String[]{" "," "})); 
} 
if (conn == null){ 
conn = mappedStatement.getConfiguration().getEnvironment().getDataSource().getConnection(); 
} 
ps = conn.prepareStatement(countSql); 
BoundSql countBS = new BoundSql(mappedStatement.getConfiguration(), countSql, 
boundSql.getParameterMappings(), parameterObject); 
//解决MyBatis 分页foreach 参数失效 start 
if (Reflections.getFieldValue(boundSql, "metaParameters") != null) { 
MetaObject mo = (MetaObject) Reflections.getFieldValue(boundSql, "metaParameters"); 
Reflections.setFieldValue(countBS, "metaParameters", mo); 
} 
//解决MyBatis 分页foreach 参数失效 end 
SQLHelper.setParameters(ps, mappedStatement, countBS, parameterObject); 
rs = ps.executeQuery(); 
int count = 0; 
if (rs.next()) { 
count = rs.getInt(1); 
} 
return count; 
} finally { 
if (rs != null) { 
rs.close(); 
} 
if (ps != null) { 
ps.close(); 
} 
if (conn != null) { 
conn.close(); 
} 
} 
} 
/** 
* 根据数据库方言，生成特定的分页sql 
* @param sql Mapper中的Sql语句 
* @param page 分页对象 
* @param dialect 方言类型 
* @return 分页SQL 
*/ 
public static String generatePageSql(String sql, Page<Object> page, Dialect dialect) { 
if (dialect.supportsLimit()) { 
return dialect.getLimitString(sql, page.getFirstResult(), page.getMaxResults()); 
} else { 
return sql; 
} 
} 
/** 
* 去除qlString的select子句。 
* @param hql 
* @return 
*/ 
@SuppressWarnings("unused") 
private static String removeSelect(String qlString){ 
int beginPos = qlString.toLowerCase().indexOf("from"); 
return qlString.substring(beginPos); 
} 
/** 
* 去除hql的orderBy子句。 
* @param hql 
* @return 
*/ 
private static String removeOrders(String qlString) { 
Pattern p = Pattern.compile("order\\s*by[\\w|\\W|\\s|\\S]*", Pattern.CASE_INSENSITIVE); 
Matcher m = p.matcher(qlString); 
StringBuffer sb = new StringBuffer(); 
while (m.find()) { 
m.appendReplacement(sb, ""); 
} 
m.appendTail(sb); 
return sb.toString(); 
} 
}

package com.store.base.secondmodel.base.dialect; 
/** 
* 类似hibernate的Dialect,但只精简出分页部分 
* @author yiyong_wu 
* 
*/ 
public interface Dialect { 
/** 
* 数据库本身是否支持分页当前的分页查询方式 
* 如果数据库不支持的话，则不进行数据库分页 
* 
* @return true：支持当前的分页查询方式 
*/ 
public boolean supportsLimit(); 
/** 
* 将sql转换为分页SQL，分别调用分页sql 
* 
* @param sql SQL语句 
* @param offset 开始条数 
* @param limit 每页显示多少纪录条数 
* @return 分页查询的sql 
*/ 
public String getLimitString(String sql, int offset, int limit); 
}

package com.store.base.secondmodel.base.dialect; 
/** 
* Mysql方言的实现 
* @author yiyong_wu 
* 
*/ 
public class MySQLDialect implements Dialect { 
@Override 
public boolean supportsLimit() { 
return true; 
} 
@Override 
public String getLimitString(String sql, int offset, int limit) { 
return getLimitString(sql, offset, Integer.toString(offset),Integer.toString(limit)); 
} 
/** 
* 将sql变成分页sql语句,提供将offset及limit使用占位符号(placeholder)替换. 
* <pre> 
* 如mysql 
* dialect.getLimitString("select * from user", 12, ":offset",0,":limit") 将返回 
* select * from user limit :offset,:limit 
* </pre> 
* 
* @param sql 实际SQL语句 
* @param offset 分页开始纪录条数 
* @param offsetPlaceholder 分页开始纪录条数－占位符号 
* @param limitPlaceholder 分页纪录条数占位符号 
* @return 包含占位符的分页sql 
*/ 
public String getLimitString(String sql, int offset, String offsetPlaceholder, String limitPlaceholder) { 
StringBuilder stringBuilder = new StringBuilder(sql); 
stringBuilder.append(" limit "); 
if (offset > 0) { 
stringBuilder.append(offsetPlaceholder).append(",").append(limitPlaceholder); 
} else { 
stringBuilder.append(limitPlaceholder); 
} 
return stringBuilder.toString(); 
} 
}

package com.store.base.secondmodel.base; 
import java.io.Serializable; 
import java.util.Map; 
import javax.xml.bind.annotation.XmlTransient; 
import org.apache.commons.lang3.StringUtils; 
import org.apache.commons.lang3.builder.ReflectionToStringBuilder; 
import com.fasterxml.jackson.annotation.JsonIgnore; 
import com.google.common.collect.Maps; 
import com.store.base.model.StoreUser; 
/** 
* 最顶层的Entity 
* @author yiyong_wu 
* 
* @param <T> 
*/ 
public abstract class BaseEntity<T> implements Serializable { 
private static final long serialVersionUID = 1L; 
/** 
* 删除标记（0：正常；1：删除；2：审核；） 
*/ 
public static final String DEL_FLAG_NORMAL = "0"; 
public static final String DEL_FLAG_DELETE = "1"; 
public static final String DEL_FLAG_AUDIT = "2"; 
/** 
* 实体编号（唯一标识） 
*/ 
protected String id; 
/** 
* 当前用户 
*/ 
protected StoreUser currentUser; 
/** 
* 当前实体分页对象 
*/ 
protected Page<T> page; 
/** 
* 自定义SQL（SQL标识，SQL内容） 
*/ 
private Map<String, String> sqlMap; 
public BaseEntity() { 
} 
public BaseEntity(String id) { 
this(); 
this.id = id; 
} 
public String getId() { 
return id; 
} 
public void setId(String id) { 
this.id = id; 
} 
/** 
* 这个主要针对shiro执行插入更新的时候会调用，获取当前的用户 
* @return 
*/ 
@JsonIgnore 
@XmlTransient 
public StoreUser getCurrentUser() { 
if(currentUser == null){ 
// currentUser = UserUtils.getUser(); 
} 
return currentUser; 
} 
public void setCurrentUser(StoreUser currentUser) { 
this.currentUser = currentUser; 
} 
@JsonIgnore 
@XmlTransient 
public Page<T> getPage() { 
if (page == null){ 
page = new Page<>(); 
} 
return page; 
} 
public Page<T> setPage(Page<T> page) { 
this.page = page; 
return page; 
} 
@JsonIgnore 
@XmlTransient 
public Map<String, String> getSqlMap() { 
if (sqlMap == null){ 
sqlMap = Maps.newHashMap(); 
} 
return sqlMap; 
} 
public void setSqlMap(Map<String, String> sqlMap) { 
this.sqlMap = sqlMap; 
} 
/** 
* 插入之前执行方法，子类实现 
*/ 
public abstract void preInsert(); 
/** 
* 更新之前执行方法，子类实现 
*/ 
public abstract void preUpdate(); 
/** 
* 是否是新记录（默认：false），调用setIsNewRecord()设置新记录，使用自定义ID。 
* 设置为true后强制执行插入语句，ID不会自动生成，需从手动传入。 
* @return 
*/ 
public boolean getIsNewRecord() { 
return StringUtils.isBlank(getId()); 
} 
/** 
* 全局变量对象 
*/ 
@JsonIgnore 
public Global getGlobal() { 
return Global.getInstance(); 
} 
/** 
* 获取数据库名称 
*/ 
@JsonIgnore 
public String getDbName(){ 
return Global.getConfig("jdbc.type"); 
} 
@Override 
public String toString() { 
return ReflectionToStringBuilder.toString(this); 
} 
}

package com.store.base.secondmodel.base; 
import java.util.Date; 
import org.hibernate.validator.constraints.Length; 
import com.fasterxml.jackson.annotation.JsonFormat; 
import com.fasterxml.jackson.annotation.JsonIgnore; 
import com.store.base.model.StoreUser; 
/** 
* 数据Entity 
* @author yiyong_wu 
* 
* @param <T> 
*/ 
public abstract class DataEntity<T> extends BaseEntity<T> { 
private static final long serialVersionUID = 1L; 
protected StoreUser createBy; // 创建者 
protected Date createDate; // 创建日期 
protected StoreUser updateBy; // 更新者 
protected Date updateDate; // 更新日期 
protected String delFlag; // 删除标记（0：正常；1：删除；2：审核） 
public DataEntity() { 
super(); 
this.delFlag = DEL_FLAG_NORMAL; 
} 
public DataEntity(String id) { 
super(id); 
} 
/** 
* 插入之前执行方法，需要手动调用 
*/ 
@Override 
public void preInsert() { 
// 不限制ID为UUID，调用setIsNewRecord()使用自定义ID 
// User user = UserUtils.getUser(); 
// if (StringUtils.isNotBlank(user.getId())) { 
// this.updateBy = user; 
// this.createBy = user; 
// } 
this.updateDate = new Date(); 
this.createDate = this.updateDate; 
} 
/** 
* 更新之前执行方法，需要手动调用 
*/ 
@Override 
public void preUpdate() { 
// User user = UserUtils.getUser(); 
// if (StringUtils.isNotBlank(user.getId())) { 
// this.updateBy = user; 
// } 
this.updateDate = new Date(); 
} 
// @JsonIgnore 
public StoreUser getCreateBy() { 
return createBy; 
} 
public void setCreateBy(StoreUser createBy) { 
this.createBy = createBy; 
} 
@JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss") 
public Date getCreateDate() { 
return createDate; 
} 
public void setCreateDate(Date createDate) { 
this.createDate = createDate; 
} 
// @JsonIgnore 
public StoreUser getUpdateBy() { 
return updateBy; 
} 
public void setUpdateBy(StoreUser updateBy) { 
this.updateBy = updateBy; 
} 
@JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss") 
public Date getUpdateDate() { 
return updateDate; 
} 
public void setUpdateDate(Date updateDate) { 
this.updateDate = updateDate; 
} 
@JsonIgnore 
@Length(min = 1, max = 1) 
public String getDelFlag() { 
return delFlag; 
} 
public void setDelFlag(String delFlag) { 
this.delFlag = delFlag; 
} 
}

package com.store.base.secondmodel.pratice.model; 
import com.store.base.secondmodel.base.DataEntity; 
/** 
*产品基础类 
*2016年10月11日 
*yiyong_wu 
*/ 
public class Product extends DataEntity<Product>{ 
private static final long serialVersionUID = 1L; 
private String productName; 
private float price; 
private String productNo; 
public String getProductName() { 
return productName; 
} 
public void setProductName(String productName) { 
this.productName = productName; 
} 
public float getPrice() { 
return price; 
} 
public void setPrice(float price) { 
this.price = price; 
} 
public String getProductNo() { 
return productNo; 
} 
public void setProductNo(String productNo) { 
this.productNo = productNo; 
} 
}

package com.store.base.secondmodel.base; 
/** 
* 最顶层的DAO接口 
* @author yiyong_wu 
* 
*/ 
public interface BaseDao { 
} 
CrudDao.java 针对增删改查的一个dao接口层
[java] view plain copy print?在CODE上查看代码片派生到我的代码片
package com.store.base.secondmodel.base; 
import java.util.List; 
/** 
* 定义增删改查的DAO接口 
* @author yiyong_wu 
* 
* @param <T> 
*/ 
public interface CrudDao<T> extends BaseDao { 
/** 
* 获取单条数据 
* @param id 
* @return 
*/ 
public T get(String id); 
/** 
* 获取单条数据 
* @param entity 
* @return 
*/ 
public T get(T entity); 
/** 
* 查询数据列表，如果需要分页，请设置分页对象，如：entity.setPage(new Page<T>()); 
* @param entity 
* @return 
*/ 
public List<T> findList(T entity); 
/** 
* 查询所有数据列表 
* @param entity 
* @return 
*/ 
public List<T> findAllList(T entity); 
/** 
* 查询所有数据列表 
* @see public List<T> findAllList(T entity) 
* @return 
public List<T> findAllList(); 
*/ 
/** 
* 插入数据 
* @param entity 
* @return 
*/ 
public int insert(T entity); 
/** 
* 更新数据 
* @param entity 
* @return 
*/ 
public int update(T entity); 
/** 
* 删除数据（一般为逻辑删除，更新del_flag字段为1） 
* @param id 
* @see public int delete(T entity) 
* @return 
*/ 
public int delete(String id); 
/** 
* 删除数据（一般为逻辑删除，更新del_flag字段为1） 
* @param entity 
* @return 
*/ 
public int delete(T entity); 
}

package com.store.base.secondmodel.pratice.dao; 
import com.store.base.secondmodel.base.CrudDao; 
import com.store.base.secondmodel.base.MyBatisRepository; 
import com.store.base.secondmodel.pratice.model.Product; 
/** 
*TODO 
*2016年10月11日 
*yiyong_wu 
*/ 
@MyBatisRepository 
public interface ProductDao extends CrudDao<Product>{ 
}

package com.store.base.secondmodel.base; 
import java.lang.annotation.Documented; 
import java.lang.annotation.Retention; 
import java.lang.annotation.Target; 
import java.lang.annotation.RetentionPolicy; 
import java.lang.annotation.ElementType; 
import org.springframework.stereotype.Component; 
/** 
* 标识MyBatis的DAO,方便{@link org.mybatis.spring.mapper.MapperScannerConfigurer}的扫描。 
* 
* 请注意要在spring的配置文件中配置扫描该注解类的配置 
* 
*<bean id="mapperScannerConfigurer" class="org.mybatis.spring.mapper.MapperScannerConfigurer"> 
*<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" /> 
*<property name="basePackage" value="com.store.base.secondmodel" /> 
*<property name="annotationClass" value="com.store.base.secondmodel.base.MyBatisRepository" /> 
*</bean> 
* @author yiyong_wu 
* 
*/ 
@Retention(RetentionPolicy.RUNTIME) 
@Target(ElementType.TYPE) 
@Documented 
@Component 
public @interface MyBatisRepository { 
String value() default ""; 
}

package com.store.base.secondmodel.base; 
import org.slf4j.Logger; 
import org.slf4j.LoggerFactory; 
import org.springframework.transaction.annotation.Transactional; 
/** 
* Service的最顶层父类 
* @author yiyong_wu 
* 
*/ 
@Transactional(readOnly = true) 
public abstract class BaseService { 
//日志记录用的 
protected Logger logger = LoggerFactory.getLogger(getClass()); 
}

package com.store.base.secondmodel.base; 
import java.util.List; 
import org.springframework.beans.factory.annotation.Autowired; 
import org.springframework.transaction.annotation.Transactional; 
/** 
* 增删改查Service基类 
* @author yiyong_wu 
* 
* @param <D> 
* @param <T> 
*/ 
public abstract class CrudService<D extends CrudDao<T>, T extends DataEntity<T>> 
extends BaseService { 
/** 
* 持久层对象 
*/ 
@Autowired 
protected D dao; 
/** 
* 获取单条数据 
* @param id 
* @return 
*/ 
public T get(String id) { 
return dao.get(id); 
} 
/** 
* 获取单条数据 
* @param entity 
* @return 
*/ 
public T get(T entity) { 
return dao.get(entity); 
} 
/** 
* 查询列表数据 
* @param entity 
* @return 
*/ 
public List<T> findList(T entity) { 
return dao.findList(entity); 
} 
/** 
* 查询分页数据 
* @param page 分页对象 
* @param entity 
* @return 
*/ 
public Page<T> findPage(Page<T> page, T entity) { 
entity.setPage(page); 
page.setList(dao.findList(entity)); 
return page; 
} 
/** 
* 保存数据（插入或更新） 
* @param entity 
*/ 
@Transactional(readOnly = false) 
public void save(T entity) { 
if (entity.getIsNewRecord()){ 
entity.preInsert(); 
dao.insert(entity); 
}else{ 
entity.preUpdate(); 
dao.update(entity); 
} 
} 
/** 
* 删除数据 
* @param entity 
*/ 
@Transactional(readOnly = false) 
public void delete(T entity) { 
dao.delete(entity); 
} 
}

package com.store.base.secondmodel.pratice.service; 
import org.springframework.stereotype.Service; 
import org.springframework.transaction.annotation.Transactional; 
import com.store.base.secondmodel.base.CrudService; 
import com.store.base.secondmodel.pratice.dao.ProductDao; 
import com.store.base.secondmodel.pratice.model.Product; 
/** 
*TODO 
*2016年10月11日 
*yiyong_wu 
*/ 
@Service 
@Transactional(readOnly = true) 
public class ProductService extends CrudService<ProductDao,Product>{ 
}

package com.store.base.secondmodel.base; 
import java.io.Serializable; 
import java.util.ArrayList; 
import java.util.List; 
import java.util.regex.Pattern; 
import javax.servlet.http.HttpServletRequest; 
import javax.servlet.http.HttpServletResponse; 
import com.fasterxml.jackson.annotation.JsonIgnore; 
import com.store.base.secondmodel.base.util.CookieUtils; 
import com.store.base.secondmodel.base.util.StringUtils; 
/** 
* 分页类 
* @author yiyong_wu 
* 
* @param <T> 
*/ 
public class Page<T> implements Serializable{ 
private static final long serialVersionUID = 1L; 
private int pageNo = 1; // 当前页码 
private int pageSize = Integer.parseInt(Global.getConfig("page.pageSize")); // 页面大小，设置为“-1”表示不进行分页（分页无效） 
private long count;// 总记录数，设置为“-1”表示不查询总数 
private int first;// 首页索引 
private int last;// 尾页索引 
private int prev;// 上一页索引 
private int next;// 下一页索引 
private boolean firstPage;//是否是第一页 
private boolean lastPage;//是否是最后一页 
private int length = 6;// 显示页面长度 
private int slider = 1;// 前后显示页面长度 
private List<T> list = new ArrayList<>(); 
private String orderBy = ""; // 标准查询有效， 实例： updatedate desc, name asc 
private String funcName = "page"; // 设置点击页码调用的js函数名称，默认为page，在一页有多个分页对象时使用。 
private String funcParam = ""; // 函数的附加参数，第三个参数值。 
private String message = ""; // 设置提示消息，显示在“共n条”之后 
public Page() { 
this.pageSize = -1; 
} 
/** 
* 构造方法 
* @param request 传递 repage 参数，来记住页码 
* @param response 用于设置 Cookie，记住页码 
*/ 
public Page(HttpServletRequest request, HttpServletResponse response){ 
this(request, response, -2); 
} 
/** 
* 构造方法 
* @param request 传递 repage 参数，来记住页码 
* @param response 用于设置 Cookie，记住页码 
* @param defaultPageSize 默认分页大小，如果传递 -1 则为不分页，返回所有数据 
*/ 
public Page(HttpServletRequest request, HttpServletResponse response, int defaultPageSize){ 
// 设置页码参数（传递repage参数，来记住页码） 
String no = request.getParameter("pageNo"); 
if (StringUtils.isNumeric(no)){ 
CookieUtils.setCookie(response, "pageNo", no); 
this.setPageNo(Integer.parseInt(no)); 
}else if (request.getParameter("repage")!=null){ 
no = CookieUtils.getCookie(request, "pageNo"); 
if (StringUtils.isNumeric(no)){ 
this.setPageNo(Integer.parseInt(no)); 
} 
} 
// 设置页面大小参数（传递repage参数，来记住页码大小） 
String size = request.getParameter("pageSize"); 
if (StringUtils.isNumeric(size)){ 
CookieUtils.setCookie(response, "pageSize", size); 
this.setPageSize(Integer.parseInt(size)); 
}else if (request.getParameter("repage")!=null){ 
no = CookieUtils.getCookie(request, "pageSize"); 
if (StringUtils.isNumeric(size)){ 
this.setPageSize(Integer.parseInt(size)); 
} 
}else if (defaultPageSize != -2){ 
this.pageSize = defaultPageSize; 
} 
// 设置排序参数 
String orderBy = request.getParameter("orderBy"); 
if (StringUtils.isNotBlank(orderBy)){ 
this.setOrderBy(orderBy); 
} 
} 
/** 
* 构造方法 
* @param pageNo 当前页码 
* @param pageSize 分页大小 
*/ 
public Page(int pageNo, int pageSize) { 
this(pageNo, pageSize, 0); 
} 
/** 
* 构造方法 
* @param pageNo 当前页码 
* @param pageSize 分页大小 
* @param count 数据条数 
*/ 
public Page(int pageNo, int pageSize, long count) { 
this(pageNo, pageSize, count, new ArrayList<T>()); 
} 
/** 
* 构造方法 
* @param pageNo 当前页码 
* @param pageSize 分页大小 
* @param count 数据条数 
* @param list 本页数据对象列表 
*/ 
public Page(int pageNo, int pageSize, long count, List<T> list) { 
this.setCount(count); 
this.setPageNo(pageNo); 
this.pageSize = pageSize; 
this.list = list; 
} 
/** 
* 初始化参数 
*/ 
public void initialize(){ 
//1 
this.first = 1; 
this.last = (int)(count / (this.pageSize < 1 ? 20 : this.pageSize) + first - 1); 
if (this.count % this.pageSize != 0 || this.last == 0) { 
this.last++; 
} 
if (this.last < this.first) { 
this.last = this.first; 
} 
if (this.pageNo <= 1) { 
this.pageNo = this.first; 
this.firstPage=true; 
} 
if (this.pageNo >= this.last) { 
this.pageNo = this.last; 
this.lastPage=true; 
} 
if (this.pageNo < this.last - 1) { 
this.next = this.pageNo + 1; 
} else { 
this.next = this.last; 
} 
if (this.pageNo > 1) { 
this.prev = this.pageNo - 1; 
} else { 
this.prev = this.first; 
} 
//2 
if (this.pageNo < this.first) {// 如果当前页小于首页 
this.pageNo = this.first; 
} 
if (this.pageNo > this.last) {// 如果当前页大于尾页 
this.pageNo = this.last; 
} 
} 
/** 
* 默认输出当前分页标签 
* <div class="page">${page}</div> 
*/ 
@Override 
public String toString() { 
StringBuilder sb = new StringBuilder(); 
if (pageNo == first) {// 如果是首页 
sb.append("<li class=\"disabled\"><a href=\"javascript:\">« 上一页</a></li>\n"); 
} else { 
sb.append("<li><a href=\"javascript:\" onclick=\""+funcName+"("+prev+","+pageSize+",'"+funcParam+"');\">« 上一页</a></li>\n"); 
} 
int begin = pageNo - (length / 2); 
if (begin < first) { 
begin = first; 
} 
int end = begin + length - 1; 
if (end >= last) { 
end = last; 
begin = end - length + 1; 
if (begin < first) { 
begin = first; 
} 
} 
if (begin > first) { 
int i = 0; 
for (i = first; i < first + slider && i < begin; i++) { 
sb.append("<li><a href=\"javascript:\" onclick=\""+funcName+"("+i+","+pageSize+",'"+funcParam+"');\">" 
+ (i + 1 - first) + "</a></li>\n"); 
} 
if (i < begin) { 
sb.append("<li class=\"disabled\"><a href=\"javascript:\">...</a></li>\n"); 
} 
} 
for (int i = begin; i <= end; i++) { 
if (i == pageNo) { 
sb.append("<li class=\"active\"><a href=\"javascript:\">" + (i + 1 - first) 
+ "</a></li>\n"); 
} else { 
sb.append("<li><a href=\"javascript:\" onclick=\""+funcName+"("+i+","+pageSize+",'"+funcParam+"');\">" 
+ (i + 1 - first) + "</a></li>\n"); 
} 
} 
if (last - end > slider) { 
sb.append("<li class=\"disabled\"><a href=\"javascript:\">...</a></li>\n"); 
end = last - slider; 
} 
for (int i = end + 1; i <= last; i++) { 
sb.append("<li><a href=\"javascript:\" onclick=\""+funcName+"("+i+","+pageSize+",'"+funcParam+"');\">" 
+ (i + 1 - first) + "</a></li>\n"); 
} 
if (pageNo == last) { 
sb.append("<li class=\"disabled\"><a href=\"javascript:\">下一页 »</a></li>\n"); 
} else { 
sb.append("<li><a href=\"javascript:\" onclick=\""+funcName+"("+next+","+pageSize+",'"+funcParam+"');\">" 
+ "下一页 »</a></li>\n"); 
} 
return sb.toString(); 
} 
/** 
* 获取分页HTML代码 
* @return 
*/ 
public String getHtml(){ 
return toString(); 
} 
/** 
* 获取设置总数 
* @return 
*/ 
public long getCount() { 
return count; 
} 
/** 
* 设置数据总数 
* @param count 
*/ 
public void setCount(long count) { 
this.count = count; 
if (pageSize >= count){ 
pageNo = 1; 
} 
} 
/** 
* 获取当前页码 
* @return 
*/ 
public int getPageNo() { 
return pageNo; 
} 
/** 
* 设置当前页码 
* @param pageNo 
*/ 
public void setPageNo(int pageNo) { 
this.pageNo = pageNo; 
} 
/** 
* 获取页面大小 
* @return 
*/ 
public int getPageSize() { 
return pageSize; 
} 
/** 
* 设置页面大小（最大500）// > 500 ? 500 : pageSize; 
* @param pageSize 
*/ 
public void setPageSize(int pageSize) { 
this.pageSize = pageSize <= 0 ? 10 : pageSize; 
} 
/** 
* 首页索引 
* @return 
*/ 
@JsonIgnore 
public int getFirst() { 
return first; 
} 
/** 
* 尾页索引 
* @return 
*/ 
@JsonIgnore 
public int getLast() { 
return last; 
} 
/** 
* 获取页面总数 
* @return getLast(); 
*/ 
@JsonIgnore 
public int getTotalPage() { 
return getLast(); 
} 
/** 
* 是否为第一页 
* @return 
*/ 
@JsonIgnore 
public boolean isFirstPage() { 
return firstPage; 
} 
/** 
* 是否为最后一页 
* @return 
*/ 
@JsonIgnore 
public boolean isLastPage() { 
return lastPage; 
} 
/** 
* 上一页索引值 
* @return 
*/ 
@JsonIgnore 
public int getPrev() { 
if (isFirstPage()) { 
return pageNo; 
} else { 
return pageNo - 1; 
} 
} 
/** 
* 下一页索引值 
* @return 
*/ 
@JsonIgnore 
public int getNext() { 
if (isLastPage()) { 
return pageNo; 
} else { 
return pageNo + 1; 
} 
} 
/** 
* 获取本页数据对象列表 
* @return List<T> 
*/ 
public List<T> getList() { 
return list; 
} 
/** 
* 设置本页数据对象列表 
* @param list 
*/ 
public Page<T> setList(List<T> list) { 
this.list = list; 
initialize(); 
return this; 
} 
/** 
* 获取查询排序字符串 
* @return 
*/ 
@JsonIgnore 
public String getOrderBy() { 
// SQL过滤，防止注入 
String reg = "(?:')|(?:--)|(/\\*(?:.|[\\n\\r])*?\\*/)|" 
+ "(\\b(select|update|and|or|delete|insert|trancate|char|into|substr|ascii|declare|exec|count|master|into|drop|execute)\\b)"; 
Pattern sqlPattern = Pattern.compile(reg, Pattern.CASE_INSENSITIVE); 
if (sqlPattern.matcher(orderBy).find()) { 
return ""; 
} 
return orderBy; 
} 
/** 
* 设置查询排序，标准查询有效， 实例： updatedate desc, name asc 
*/ 
public void setOrderBy(String orderBy) { 
this.orderBy = orderBy; 
} 
/** 
* 获取点击页码调用的js函数名称 
* function ${page.funcName}(pageNo){location="${ctx}/list-${category.id}${urlSuffix}?pageNo="+i;} 
* @return 
*/ 
@JsonIgnore 
public String getFuncName() { 
return funcName; 
} 
/** 
* 设置点击页码调用的js函数名称，默认为page，在一页有多个分页对象时使用。 
* @param funcName 默认为page 
*/ 
public void setFuncName(String funcName) { 
this.funcName = funcName; 
} 
/** 
* 获取分页函数的附加参数 
* @return 
*/ 
@JsonIgnore 
public String getFuncParam() { 
return funcParam; 
} 
/** 
* 设置分页函数的附加参数 
* @return 
*/ 
public void setFuncParam(String funcParam) { 
this.funcParam = funcParam; 
} 
/** 
* 设置提示消息，显示在“共n条”之后 
* @param message 
*/ 
public void setMessage(String message) { 
this.message = message; 
} 
/** 
* 分页是否有效 
* @return this.pageSize==-1 
*/ 
@JsonIgnore 
public boolean isDisabled() { 
return this.pageSize==-1; 
} 
/** 
* 是否进行总数统计 
* @return this.count==-1 
*/ 
@JsonIgnore 
public boolean isNotCount() { 
return this.count==-1; 
} 
/** 
* 获取 Hibernate FirstResult 
*/ 
public int getFirstResult(){ 
int firstResult = (getPageNo() - 1) * getPageSize(); 
if (firstResult >= getCount()) { 
firstResult = 0; 
} 
return firstResult; 
} 
/** 
* 获取 Hibernate MaxResults 
*/ 
public int getMaxResults(){ 
return getPageSize(); 
} 
}

package com.store.base.secondmodel.base.util; 
import java.io.IOException; 
import java.io.InputStream; 
import java.util.NoSuchElementException; 
import java.util.Properties; 
import org.apache.commons.io.IOUtils; 
import org.slf4j.Logger; 
import org.slf4j.LoggerFactory; 
import org.springframework.core.io.DefaultResourceLoader; 
import org.springframework.core.io.Resource; 
import org.springframework.core.io.ResourceLoader; 
/** 
* Properties文件载入工具类. 可载入多个properties文件, 
* 相同的属性在最后载入的文件中的值将会覆盖之前的值，但以System的Property优先. 
* @author yiyong_wu 
* 
*/ 
public class PropertiesLoader { 
private static Logger logger = LoggerFactory.getLogger(PropertiesLoader.class); 
private static ResourceLoader resourceLoader = new DefaultResourceLoader(); 
private final Properties properties; 
public PropertiesLoader(String... resourcesPaths) { 
properties = loadProperties(resourcesPaths); 
} 
public Properties getProperties() { 
return properties; 
} 
/** 
* 取出Property，但以System的Property优先,取不到返回空字符串. 
*/ 
private String getValue(String key) { 
String systemProperty = System.getProperty(key); 
if (systemProperty != null) { 
return systemProperty; 
} 
if (properties.containsKey(key)) { 
return properties.getProperty(key); 
} 
return ""; 
} 
/** 
* 取出String类型的Property，但以System的Property优先,如果都为Null则抛出异常. 
*/ 
public String getProperty(String key) { 
String value = getValue(key); 
if (value == null) { 
throw new NoSuchElementException(); 
} 
return value; 
} 
/** 
* 取出String类型的Property，但以System的Property优先.如果都为Null则返回Default值. 
*/ 
public String getProperty(String key, String defaultValue) { 
String value = getValue(key); 
return value != null ? value : defaultValue; 
} 
/** 
* 取出Integer类型的Property，但以System的Property优先.如果都为Null或内容错误则抛出异常. 
*/ 
public Integer getInteger(String key) { 
String value = getValue(key); 
if (value == null) { 
throw new NoSuchElementException(); 
} 
return Integer.valueOf(value); 
} 
/** 
* 取出Integer类型的Property，但以System的Property优先.如果都为Null则返回Default值，如果内容错误则抛出异常 
*/ 
public Integer getInteger(String key, Integer defaultValue) { 
String value = getValue(key); 
return value != null ? Integer.valueOf(value) : defaultValue; 
} 
/** 
* 取出Double类型的Property，但以System的Property优先.如果都为Null或内容错误则抛出异常. 
*/ 
public Double getDouble(String key) { 
String value = getValue(key); 
if (value == null) { 
throw new NoSuchElementException(); 
} 
return Double.valueOf(value); 
} 
/** 
* 取出Double类型的Property，但以System的Property优先.如果都为Null则返回Default值，如果内容错误则抛出异常 
*/ 
public Double getDouble(String key, Integer defaultValue) { 
String value = getValue(key); 
return value != null ? Double.valueOf(value) : defaultValue.doubleValue(); 
} 
/** 
* 取出Boolean类型的Property，但以System的Property优先.如果都为Null抛出异常,如果内容不是true/false则返回false. 
*/ 
public Boolean getBoolean(String key) { 
String value = getValue(key); 
if (value == null) { 
throw new NoSuchElementException(); 
} 
return Boolean.valueOf(value); 
} 
/** 
* 取出Boolean类型的Property，但以System的Property优先.如果都为Null则返回Default值,如果内容不为true/false则返回false. 
*/ 
public Boolean getBoolean(String key, boolean defaultValue) { 
String value = getValue(key); 
return value != null ? Boolean.valueOf(value) : defaultValue; 
} 
/** 
* 载入多个文件, 文件路径使用Spring Resource格式. 
*/ 
private Properties loadProperties(String... resourcesPaths) { 
Properties props = new Properties(); 
for (String location : resourcesPaths) { 
InputStream is = null; 
try { 
Resource resource = resourceLoader.getResource(location); 
is = resource.getInputStream(); 
props.load(is); 
} catch (IOException ex) { 
logger.error("Could not load properties from path:" + location , ex); 
} finally { 
IOUtils.closeQuietly(is); 
} 
} 
return props; 
} 
}

package com.store.base.secondmodel.base; 
import java.io.File; 
import java.io.IOException; 
import java.util.Map; 
import org.slf4j.Logger; 
import org.slf4j.LoggerFactory; 
import org.springframework.core.io.DefaultResourceLoader; 
import com.google.common.collect.Maps; 
import com.store.base.secondmodel.base.util.PropertiesLoader; 
import com.store.base.secondmodel.base.util.StringUtils; 
/** 
* 全局配置类 
* @author yiyong_wu 
* 
*/ 
public class Global { 
private static final Logger logger = LoggerFactory.getLogger(Global.class); 
/** 
* 当前对象实例 
*/ 
private static Global global = new Global(); 
/** 
* 保存全局属性值 
*/ 
private static Map<String, String> map = Maps.newHashMap(); 
/** 
* 属性文件加载对象 
*/ 
private static PropertiesLoader loader = new PropertiesLoader("application.properties"); 
/** 
* 显示/隐藏 
public static final String SHOW = "1"; 
public static final String HIDE = "0"; 
/** 
* 是/否 
*/ 
public static final String YES = "1"; 
public static final String NO = "0"; 
/** 
* 状态 上/下 app专用 
*/ 
public static final String UPSHVELF = "1"; 
public static final String DOWNSHVELF = "2"; 
public static final String SEPARATOR = "/"; 
/** 
* 对/错 
*/ 
public static final String TRUE = "true"; 
public static final String FALSE = "false"; 
/** 
* 上传文件基础虚拟路径 
*/ 
public static final String USERFILES_BASE_URL = "/userfiles/"; 
/** 
* 针对富文本编辑器，结尾会产生的空div 
*/ 
public static final String ENDS = "<p><br></p>"; 
/** 
* 默认空的私有构造函数 
*/ 
public Global() { 
//do nothing in this method,just empty 
} 
/** 
* 获取当前对象实例 
*/ 
public static Global getInstance() { 
return global; 
} 
/** 
* 获取配置 
*/ 
public static String getConfig(String key) { 
String value = map.get(key); 
if (value == null){ 
value = loader.getProperty(key); 
map.put(key, value != null ? value : StringUtils.EMPTY); 
} 
return value; 
} 
/** 
* 获取URL后缀 
*/ 
public static String getUrlSuffix() { 
return getConfig("urlSuffix"); 
} 
/** 
* 页面获取常量 
* @see ${fns:getConst('YES')} 
*/ 
public static Object getConst(String field) { 
try { 
return Global.class.getField(field).get(null); 
} catch (Exception e) { 
logger.error("获取常量出错", e); 
} 
return null; 
} 
/** 
* 获取工程路径 
* @return 
*/ 
public static String getProjectPath(){ 
// 如果配置了工程路径，则直接返回，否则自动获取。 
String projectPath = Global.getConfig("projectPath"); 
if (StringUtils.isNotBlank(projectPath)){ 
return projectPath; 
} 
try { 
File file = new DefaultResourceLoader().getResource("").getFile(); 
if (file != null){ 
while(true){ 
File f = new File(file.getPath() + File.separator + "src" + File.separator + "main"); 
if (f == null || f.exists()){ 
break; 
} 
if (file.getParentFile() != null){ 
file = file.getParentFile(); 
}else{ 
break; 
} 
} 
projectPath = file.toString(); 
} 
} catch (IOException e) { 
logger.error("加载配置文件失败", e); 
} 
return projectPath; 
} 
}

package com.store.base.secondmodel.base.util; 
import java.io.UnsupportedEncodingException; 
import java.net.URLDecoder; 
import java.net.URLEncoder; 
import javax.servlet.http.Cookie; 
import javax.servlet.http.HttpServletRequest; 
import javax.servlet.http.HttpServletResponse; 
import org.slf4j.Logger; 
import org.slf4j.LoggerFactory; 
/** 
* Cookie工具类 
* @author yiyong_wu 
* 
*/ 
public class CookieUtils { 
private static final Logger logger = LoggerFactory.getLogger(CookieUtils.class); 
/** 
* 私有构造函数 
*/ 
private CookieUtils() { 
} 
/** 
* 设置 Cookie（生成时间为1年） 
* @param name 名称 
* @param value 值 
*/ 
public static void setCookie(HttpServletResponse response, String name, String value) { 
setCookie(response, name, value, 60*60*24*365); 
} 
/** 
* 设置 Cookie 
* @param name 名称 
* @param value 值 
* @param maxAge 生存时间（单位秒） 
* @param uri 路径 
*/ 
public static void setCookie(HttpServletResponse response, String name, String value, String path) { 
setCookie(response, name, value, path, 60*60*24*365); 
} 
/** 
* 设置 Cookie 
* @param name 名称 
* @param value 值 
* @param maxAge 生存时间（单位秒） 
* @param uri 路径 
*/ 
public static void setCookie(HttpServletResponse response, String name, String value, int maxAge) { 
setCookie(response, name, value, "/", maxAge); 
} 
/** 
* 设置 Cookie 
* @param name 名称 
* @param value 值 
* @param maxAge 生存时间（单位秒） 
* @param uri 路径 
*/ 
public static void setCookie(HttpServletResponse response, String name, String value, String path, int maxAge) { 
Cookie cookie = new Cookie(name, null); 
cookie.setPath(path); 
cookie.setMaxAge(maxAge); 
try { 
cookie.setValue(URLEncoder.encode(value, "utf-8")); 
} catch (UnsupportedEncodingException e) { 
logger.error("不支持的编码", e); 
} 
response.addCookie(cookie); 
} 
/** 
* 获得指定Cookie的值 
* @param name 名称 
* @return 值 
*/ 
public static String getCookie(HttpServletRequest request, String name) { 
return getCookie(request, null, name, false); 
} 
/** 
* 获得指定Cookie的值，并删除。 
* @param name 名称 
* @return 值 
*/ 
public static String getCookie(HttpServletRequest request, HttpServletResponse response, String name) { 
return getCookie(request, response, name, true); 
} 
/** 
* 获得指定Cookie的值 
* @param request 请求对象 
* @param response 响应对象 
* @param name 名字 
* @param isRemove 是否移除 
* @return 值 
*/ 
public static String getCookie(HttpServletRequest request, HttpServletResponse response, String name, boolean isRemove) { 
String value = null; 
Cookie[] cookies = request.getCookies(); 
if(cookies == null) { 
return value; 
} 
for (Cookie cookie : cookies) { 
if (cookie.getName().equals(name)) { 
try { 
value = URLDecoder.decode(cookie.getValue(), "utf-8"); 
} catch (UnsupportedEncodingException e) { 
logger.error("不支持的编码", e); 
} 
if (isRemove) { 
cookie.setMaxAge(0); 
response.addCookie(cookie); 
} 
} 
} 
return value; 
} 
}

package com.store.base.secondmodel.base.util; 
import org.apache.commons.lang3.Validate; 
import org.slf4j.Logger; 
import org.slf4j.LoggerFactory; 
import org.springframework.beans.factory.DisposableBean; 
import org.springframework.context.ApplicationContext; 
import org.springframework.context.ApplicationContextAware; 
import org.springframework.context.annotation.Lazy; 
import org.springframework.stereotype.Service; 
@Service 
@Lazy(false) 
public class SpringContextHolder implements ApplicationContextAware, 
DisposableBean { 
private static Logger logger = LoggerFactory.getLogger(SpringContextHolder.class); 
private static ApplicationContext applicationContext = null; 
/** 
* 取得存储在静态变量中的ApplicationContext. 
*/ 
public static ApplicationContext getApplicationContext() { 
assertContextInjected(); 
return applicationContext; 
} 
/** 
* 从静态变量applicationContext中取得Bean, 自动转型为所赋值对象的类型. 
*/ 
@SuppressWarnings("unchecked") 
public static <T> T getBean(String name) { 
assertContextInjected(); 
return (T) applicationContext.getBean(name); 
} 
/** 
* 从静态变量applicationContext中取得Bean, 自动转型为所赋值对象的类型. 
*/ 
public static <T> T getBean(Class<T> requiredType) { 
assertContextInjected(); 
return applicationContext.getBean(requiredType); 
} 
@Override 
public void destroy() throws Exception { 
SpringContextHolder.clearHolder(); 
} 
/** 
* 实现ApplicationContextAware接口, 注入Context到静态变量中. 
*/ 
@Override 
public void setApplicationContext(ApplicationContext applicationContext) { 
logger.debug("注入ApplicationContext到SpringContextHolder:{}", applicationContext); 
SpringContextHolder.applicationContext = applicationContext; 
if (SpringContextHolder.applicationContext != null) { 
logger.info("SpringContextHolder中的ApplicationContext被覆盖, 原有ApplicationContext为:" + SpringContextHolder.applicationContext); 
} 
} 
/** 
* 清除SpringContextHolder中的ApplicationContext为Null. 
*/ 
public static void clearHolder() { 
if (logger.isDebugEnabled()){ 
logger.debug("清除SpringContextHolder中的ApplicationContext:" + applicationContext); 
} 
applicationContext = null; 
} 
/** 
* 检查ApplicationContext不为空. 
*/ 
private static void assertContextInjected() { 
Validate.validState(applicationContext != null, "applicaitonContext属性未注入, 请在applicationContext.xml中定义SpringContextHolder."); 
} 
}

package com.store.base.secondmodel.base.util; 
import java.io.UnsupportedEncodingException; 
import java.util.Locale; 
import java.util.regex.Matcher; 
import java.util.regex.Pattern; 
import javax.servlet.http.HttpServletRequest; 
import org.apache.commons.lang3.StringEscapeUtils; 
import org.slf4j.Logger; 
import org.slf4j.LoggerFactory; 
import org.springframework.web.context.request.RequestContextHolder; 
import org.springframework.web.context.request.ServletRequestAttributes; 
import org.springframework.web.servlet.LocaleResolver; 
import com.store.base.util.Encodes; 
/** 
* 字符串帮助类 
* @author yiyong_wu 
* 
*/ 
public class StringUtils extends org.apache.commons.lang3.StringUtils { 
private static final char SEPARATOR = '_'; 
private static final String CHARSET_NAME = "UTF-8"; 
private static final Logger logger = LoggerFactory.getLogger(StringUtils.class); 
/** 
* 转换为字节数组 
* @param str 
* @return 
*/ 
public static byte[] getBytes(String str){ 
if (str != null){ 
try { 
return str.getBytes(CHARSET_NAME); 
} catch (UnsupportedEncodingException e) { 
logger.error("", e); 
return new byte[0]; 
} 
}else{ 
return new byte[0]; 
} 
} 
/** 
* 转换为字节数组 
* @param str 
* @return 
*/ 
public static String toString(byte[] bytes){ 
try { 
return new String(bytes, CHARSET_NAME); 
} catch (UnsupportedEncodingException e) { 
logger.error("", e); 
return EMPTY; 
} 
} 
/** 
* 是否包含字符串 
* @param str 验证字符串 
* @param strs 字符串组 
* @return 包含返回true 
*/ 
public static boolean inString(String str, String... strs){ 
if (str != null){ 
for (String s : strs){ 
if (str.equals(trim(s))){ 
return true; 
} 
} 
} 
return false; 
} 
/** 
* 替换掉HTML标签方法 
*/ 
public static String replaceHtml(String html) { 
if (isBlank(html)){ 
return ""; 
} 
String regEx = "<.+?>"; 
Pattern p = Pattern.compile(regEx); 
Matcher m = p.matcher(html); 
return m.replaceAll(""); 
} 
/** 
* 替换为手机识别的HTML，去掉样式及属性，保留回车。 
* @param html 
* @return 
*/ 
public static String replaceMobileHtml(String html){ 
if (html == null){ 
return ""; 
} 
return html.replaceAll("<([a-z]+?)\\s+?.*?>", "<$1>"); 
} 
/** 
* 替换为手机识别的HTML，去掉样式及属性，保留回车。 
* @param txt 
* @return 
*/ 
public static String toHtml(String txt){ 
if (txt == null){ 
return ""; 
} 
return replace(replace(Encodes.escapeHtml(txt), "\n", "<br/>"), "\t", " "); 
} 
/** 
* 缩略字符串（不区分中英文字符） 
* @param str 目标字符串 
* @param length 截取长度 
* @return 
*/ 
public static String abbr(String str, int length) { 
if (str == null) { 
return ""; 
} 
try { 
StringBuilder sb = new StringBuilder(); 
int currentLength = 0; 
for (char c : replaceHtml(StringEscapeUtils.unescapeHtml4(str)).toCharArray()) { 
currentLength += String.valueOf(c).getBytes("GBK").length; 
if (currentLength <= length - 3) { 
sb.append(c); 
} else { 
sb.append("..."); 
break; 
} 
} 
return sb.toString(); 
} catch (UnsupportedEncodingException e) { 
logger.error("", e); 
} 
return ""; 
} 
/** 
* 转换为Double类型 
*/ 
public static Double toDouble(Object val){ 
if (val == null){ 
return 0D; 
} 
try { 
return Double.valueOf(trim(val.toString())); 
} catch (Exception e) { 
logger.error("", e); 
return 0D; 
} 
} 
/** 
* 转换为Float类型 
*/ 
public static Float toFloat(Object val){ 
return toDouble(val).floatValue(); 
} 
/** 
* 转换为Long类型 
*/ 
public static Long toLong(Object val){ 
return toDouble(val).longValue(); 
} 
/** 
* 转换为Integer类型 
*/ 
public static Integer toInteger(Object val){ 
return toLong(val).intValue(); 
} 
/** 
* 获得i18n字符串 
*/ 
public static String getMessage(String code, Object[] args) { 
LocaleResolver localLocaleResolver = SpringContextHolder.getBean(LocaleResolver.class); 
HttpServletRequest request = ((ServletRequestAttributes)RequestContextHolder.getRequestAttributes()).getRequest(); 
Locale localLocale = localLocaleResolver.resolveLocale(request); 
return SpringContextHolder.getApplicationContext().getMessage(code, args, localLocale); 
} 
/** 
* 获得用户远程地址 
*/ 
public static String getRemoteAddr(HttpServletRequest request){ 
String remoteAddr = request.getHeader("X-Real-IP"); 
if (isNotBlank(remoteAddr)) { 
remoteAddr = request.getHeader("X-Forwarded-For"); 
} 
if (isNotBlank(remoteAddr)) { 
remoteAddr = request.getHeader("Proxy-Client-IP"); 
} 
if (isNotBlank(remoteAddr)) { 
remoteAddr = request.getHeader("WL-Proxy-Client-IP"); 
} 
return remoteAddr != null ? remoteAddr : request.getRemoteAddr(); 
} 
/** 
* 驼峰命名法工具 
* @return 
* toCamelCase("hello_world") == "helloWorld" 
* toCapitalizeCamelCase("hello_world") == "HelloWorld" 
* toUnderScoreCase("helloWorld") = "hello_world" 
*/ 
public static String toCamelCase(String s) { 
String s1 =s; 
if (s1 == null) { 
return null; 
} 
s1 = s.toLowerCase(); 
StringBuilder sb = new StringBuilder(s1.length()); 
boolean upperCase = false; 
for (int i = 0; i < s1.length(); i++) { 
char c = s1.charAt(i); 
if (c == SEPARATOR) { 
upperCase = true; 
} else if (upperCase) { 
sb.append(Character.toUpperCase(c)); 
upperCase = false; 
} else { 
sb.append(c); 
} 
} 
return sb.toString(); 
} 
/** 
* 驼峰命名法工具 
* @return 
* toCamelCase("hello_world") == "helloWorld" 
* toCapitalizeCamelCase("hello_world") == "HelloWorld" 
* toUnderScoreCase("helloWorld") = "hello_world" 
*/ 
public static String toCapitalizeCamelCase(String s) { 
String s1 = s; 
if (s1 == null) { 
return null; 
} 
s1 = toCamelCase(s1); 
return s1.substring(0, 1).toUpperCase() + s1.substring(1); 
} 
/** 
* 驼峰命名法工具 
* @return 
* toCamelCase("hello_world") == "helloWorld" 
* toCapitalizeCamelCase("hello_world") == "HelloWorld" 
* toUnderScoreCase("helloWorld") = "hello_world" 
*/ 
public static String toUnderScoreCase(String s) { 
if (s == null) { 
return null; 
} 
StringBuilder sb = new StringBuilder(); 
boolean upperCase = false; 
for (int i = 0; i < s.length(); i++) { 
char c = s.charAt(i); 
boolean nextUpperCase = true; 
if (i < (s.length() - 1)) { 
nextUpperCase = Character.isUpperCase(s.charAt(i + 1)); 
} 
if ((i > 0) && Character.isUpperCase(c)) { 
if (!upperCase || !nextUpperCase) { 
sb.append(SEPARATOR); 
} 
upperCase = true; 
} else { 
upperCase = false; 
} 
sb.append(Character.toLowerCase(c)); 
} 
return sb.toString(); 
} 
/** 
* 转换为JS获取对象值，生成三目运算返回结果 
* @param objectString 对象串 
* 例如：row.user.id 
* 返回：!row?'':!row.user?'':!row.user.id?'':row.user.id 
*/ 
public static String jsGetVal(String objectString){ 
StringBuilder result = new StringBuilder(); 
StringBuilder val = new StringBuilder(); 
String[] vals = split(objectString, "."); 
for (int i=0; i<vals.length; i++){ 
val.append("." + vals[i]); 
result.append("!"+(val.substring(1))+"?'':"); 
} 
result.append(val.substring(1)); 
return result.toString(); 
} 
}

package com.store.controller; 
import javax.servlet.http.HttpServletRequest; 
import javax.servlet.http.HttpServletResponse; 
import org.springframework.beans.factory.annotation.Autowired; 
import org.springframework.web.bind.annotation.RequestMapping; 
import org.springframework.web.bind.annotation.ResponseBody; 
import org.springframework.web.bind.annotation.RestController; 
import com.store.base.secondmodel.base.Page; 
import com.store.base.secondmodel.pratice.model.Product; 
import com.store.base.secondmodel.pratice.service.ProductService; 
/** 
*TODO 
*2016年10月11日 
*yiyong_wu 
*/ 
@RestController 
@RequestMapping("/product") 
public class ProductController { 
@Autowired 
private ProductService productService; 
@ResponseBody 
@RequestMapping(value="/getPageProduct") 
public Page<Product> getPageProduct(HttpServletRequest request,HttpServletResponse response){ 
Page<Product> page = productService.findPage(new Page<Product>(request,response), new Product()); 
return page; 
} 
}

<%@ page contentType="text/html;charset=UTF-8"%> 
<%@ include file="/WEB-INF/views/include/taglib.jsp"%> 
<html> 
<head> 
<title></title> 
<meta name="decorator" content="default" /> 
function page(n, s) { 
if (n) 
$("#pageNo").val(n); 
if (s) 
$("#pageSize").val(s); 
$("#searchForm").attr("action", "${ctx}/app/bank/list"); 
$("#searchForm").submit(); 
return false; 
} 
</script> 
</head> 
<body> 
<form:form id="searchForm" modelAttribute="XXXX" action="${ctx}/XXX" method="post" class="breadcrumb form-search "> 
<input id="pageNo" name="pageNo" type="hidden" value="${page.pageNo}" /> 
<input id="pageSize" name="pageSize" type="hidden" value="${page.pageSize}" /> 
<ul class="ul-form"> 
<li> 
<label>是否上架：</label> 
<form:select id="status" path="status" class="input-medium"> 
<form:option value="" label=""/> 
<form:options items="${fns:getDictList('yes_no_app')}" itemLabel="label" itemValue="value" htmlEscape="false"/> 
</form:select> 
</li> 
<li class="btns"><input id="btnSubmit" class="btn btn-primary" type="submit" value="查询"/> 
<li class="clearfix"></li> 
</ul> 
</form:form> 
<sys:message content="${message}" /> 
<sys:message content="${message}" /> 
<table id="contentTable" 
class="table table-striped table-bordered table-condensed"> 
<thead> 
<tr> 
<th>XXXX</th> 
<th>XXXX</th> 
<th>XXXX</th> 
<th>XXXX</th> 
<th>XXXX</th> 
<th>XXXX</th> 
<th>XXXX</th> 
<th>XXXX</th> 
</tr> 
</thead> 
<tbody> 
<c:forEach items="${page.list}" var="XXXX"> 
<tr> 
<td>${XXXX.name}</td> 
<td><a href="${ctx}/app/bank/form?id=${XXXX.id}">${XXXX.}</a></td> 
<td>${XXXX.}</td> 
<td>${XXXX.}</td> 
<td>${XXXX.}</td> 
<td>${fns:getDictLabel(XXXX.isHot, 'yes_no_app', '无')}</td> 
<td>${XXXX.}</td> 
<td><c:if test="${XXXX.status==1 }">上架</c:if> 
<c:if test="${XXXX.status==2 }">下架</c:if> 
</td> 
</tr> 
</c:forEach> 
</tbody> 
</table> 
<div class="pagination">${page} <li style="padding-top: 6px;padding-left: 12px;float: left;">共${page.count}条</li></div> 
</body> 
</html>