spring boot mybatis springboot集成mybatis实例代码
店蛋蛋 人气:0想了解springboot集成mybatis实例代码的相关内容吗，店蛋蛋在本文为您仔细讲解spring boot mybatis的相关知识和一些Code实例，欢迎阅读和指正，我们先划重点：spring,boot,mybatis,spring,boot与mybits,spring4集成mybatis，下面大家一起来学习吧。
springboot如何配置web项目请参考前一章，在此基础上集成mybatis。
在pom文件中添加mybatis的依赖：
<dependency> <groupId>org.mybatis.spring.boot</groupId> <artifactId>mybatis-spring-boot-starter</artifactId> <version>1.2.0</version> </dependency>
添加mysql驱动：
<dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> </dependency>
添加druid和fastjson依赖，使用阿里巴巴druid连接池
<dependency> <groupId>com.alibaba</groupId> <artifactId>druid</artifactId> <version>1.0.28</version> </dependency> <dependency> <groupId>com.alibaba</groupId> <artifactId>fastjson</artifactId> <version>1.2.30</version> </dependency>
配置数据源，在application.yml中：
spring:
datasource:
name: test
url: jdbc:mysql://127.0.0.1:3306/test
username: root
password: 111111
# 使用druid数据源
type: com.alibaba.druid.pool.DruidDataSource
driver-class-name: com.mysql.jdbc.Driver
filters: stat
maxActive: 20
initialSize: 1
maxWait: 60000
minIdle: 1
timeBetweenEvictionRunsMillis: 60000
minEvictableIdleTimeMillis: 300000
validationQuery: select 'x'
testWhileIdle: true
testOnBorrow: false
testOnReturn: false
poolPreparedStatements: true
maxOpenPreparedStatements: 20
设置mybatis的mapper和model扫描路径：
mybatis: mapperLocations: classpath:mapper/*.xml typeAliasesPackage: com.yingxinhuitong.demo.model #更多配置请参见：http://www.mybatis.org/spring-boot-starter/mybatis-spring-boot-autoconfigure/
接下来我们新建userMapper.xml,UserEntity以及UserDao：
UserEntity.class
package com.yingxinhuitong.demo.model;
/**
* Created by jack on 2017/4/20.
*/
public class UserEntity {
private Long id;
private String username;
private String password;
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
}
UserDao
package com.yingxinhuitong.demo.dao;
import com.yingxinhuitong.demo.model.UserEntity;
import org.apache.ibatis.annotations.Mapper;
import java.util.List;
/**
* Created by jack on 2017/4/20.
*/
@Mapper
public interface UserDao {
List<UserEntity> searchAll();
}
UserMapper.xml
<?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.yingxinhuitong.demo.dao.UserDao" > <!-- 字段与实体的映射 --> <resultMap id="BaseResultMap" type="com.yingxinhuitong.demo.model.UserEntity"> <id column="id" property="id" jdbcType="BIGINT" /> <result column="username" property="username" jdbcType="VARCHAR" /> <result column="password" property="password" jdbcType="VARCHAR" /> </resultMap> <!-- 根据条件查询，全部 --> <select id="searchAll" resultMap="BaseResultMap"> select * from tab_user </select> </mapper>
创建一个控制器，注入UserDao，测试一下可不可以查询数据了：
@RestController
public class TestController {
@Resource
UserDao userDao;
@RequestMapping("/getusers")
public String test() {
List<UserEntity> users = userDao.searchAll();
String usersJson = JSON.toJSONString(users);
return usersJson;
}
}
运行Application.class,启动成功后访问：http://localhost:9000/demo/getusers,输出内容如下：
复制代码 代码如下:
[{"id":1,"password":"000000","username":"test"},{"id":2,"password":"111111","username":"test1"},{"id":3,"password":"222222","username":"test2"}]
至此，springboot已完成对mybatis的集成。
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