Spring MVC通过添加自定义注解格式化数据 Spring MVC通过添加自定义注解格式化数据的方法

@Target({ElementType.TYPE, ElementType.METHOD})  //类名或方法上
@Retention(RetentionPolicy.RUNTIME)//运行时

@component//自定义多个注解，且在一个类中添加两个或以上的，只需要加一个 否则会实例化多次。
public @interface SocketMapping {
 String value() default "";//参数
}

@SocketMapping("/a")
public class TestAnno {

 @SocketMapping(value="/b")
 public void ss(){
 System.out.println(11);
 }
 
}

ResourcePatternResolver rpr = new PathMatchingResourcePatternResolver();
 

  Resource[] res = rpr.getResources("classpath*:websocket/**.class");//测试类的包
  
  for(int i=0;i<res.length;i++){
  String className = res[i].getURL().getPath();
  className = className.split("(classes/)|(!/)")[1];
  className = className.replace("/", ".").replace(".class", "");//获取到文件结构 com.xl.joe.testAnno
  Class<?> cla = Class.forName(className);//获取到文件类
  
   if(cla.isAnnotationPresent(SocketMapping.class)){//判断是否存在自定义注解
   System.out.println(cla.getAnnotation(SocketMapping.class).value());//获取自定义注解的属性值
   
   }
   
   Object o = SpringContextUtil.getBean("testAnno");//获取类对象
   
   Method[] methods = cla.getMethods();//获取类的方法
   for(Method method:methods){
   if(method.isAnnotationPresent(SocketMapping.class)){//找到自定义注解
    method.invoke(o, new Object[]{});//反射改方法
   }
   }
  
  }

http://127.0.0.1:8095/iportal-dev/v1/sms/sending/list?stime=20161001&etime=20161130

20161001 00:00:00< 时间段 <20161130 23:59:59

package cn.jpush.iportal.common.support;

import org.springframework.format.annotation.DateTimeFormat.ISO;

import java.lang.annotation.*;

/**
 * 使用方法与@DateTimeFormat一致，但是通过它进行注解的字段，会格式化为当天的23:59:59.
 * 其他格式的用法也可以支持.
 * @author Administrator
 *
 */
@Documented
@Retention(RetentionPolicy.RUNTIME)
@Target({ElementType.METHOD, ElementType.FIELD, ElementType.PARAMETER, ElementType.ANNOTATION_TYPE})
public @interface MyDateTimeFormat {

 String style() default "SS";

 ISO iso() default ISO.NONE;

 String pattern() default "";

}

package cn.jpush.iportal.common.support;

import org.springframework.context.support.EmbeddedValueResolutionSupport;
import org.springframework.format.AnnotationFormatterFactory;
import org.springframework.format.Formatter;
import org.springframework.format.Parser;
import org.springframework.format.Printer;

import java.util.*;

public class MyDataTimeFormatAnnotationFormatterFactory extends EmbeddedValueResolutionSupport
  implements AnnotationFormatterFactory<MyDateTimeFormat> {

 private static final Set<Class<?>> FIELD_TYPES;

 static {
  Set<Class<?>> fieldTypes = new HashSet<Class<?>>(4);
  fieldTypes.add(Date.class);
  fieldTypes.add(Calendar.class);
  fieldTypes.add(Long.class);
  FIELD_TYPES = Collections.unmodifiableSet(fieldTypes);
 }

 @Override
 public Set<Class<?>> getFieldTypes() {
  return FIELD_TYPES;
 }

 @Override
 public Printer<?> getPrinter(MyDateTimeFormat annotation, Class<?> fieldType) {
  return getFormatter(annotation, fieldType);
 }

 @Override
 public Parser<?> getParser(MyDateTimeFormat annotation, Class<?> fieldType) {
  return getFormatter(annotation, fieldType);
 }

 protected Formatter<Date> getFormatter(MyDateTimeFormat annotation, Class<?> fieldType) {
  MyDateFormatter formatter = new MyDateFormatter();
  formatter.setStylePattern(resolveEmbeddedValue(annotation.style()));
  formatter.setIso(annotation.iso());
  formatter.setPattern(resolveEmbeddedValue(annotation.pattern()));
  return formatter;
 }

}

package cn.jpush.iportal.common.support;

import org.apache.commons.lang3.time.DateUtils;
import org.springframework.format.datetime.DateFormatter;

import java.text.ParseException;
import java.util.Calendar;
import java.util.Date;
import java.util.Locale;

public class MyDateFormatter extends DateFormatter {

 @Override
 public Date parse(String text, Locale locale) throws ParseException {
  Date target = super.parse(text, locale);
  //+1天
  Date date = DateUtils.ceiling(new Date(target.getTime() + 1), Calendar.DATE);
  //减1ms，得出23:59:59
  Date result =new Date(date.getTime()-1);
  return result;
 }
}

@Configuration
public class WebConfig extends WebMvcConfigurerAdapter{

 @Override
 public void addFormatters(FormatterRegistry registry) {
  MyDataTimeFormatAnnotationFormatterFactory annoFormater =new MyDataTimeFormatAnnotationFormatterFactory();
  registry.addFormatterForFieldAnnotation(annoFormater);
 }