package com.hnf.framework.utils;
import com.alibaba.fastjson.JSON;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.beans.BeanUtils;
import org.springframework.util.CollectionUtils;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
/**
* @Author: xxx
* @Date: 2019/1/14 16:21
* @Description: bean工具类
*/
public class MyBeanUtils {
/**
* 对象拷贝
* @param source 源
* @param target 目标
*/
public static void copyProperties(Object source, Object target){
if(source == null){return;}
BeanUtils.copyProperties(source, target);
}
/**
* List 对象拷贝
* @param list 源
* @param <T> 目标
* @return 目标
*/
public static <T, E> List copyList(List<T> list, Class<E> clazz) {
if (CollectionUtils.isEmpty(list)) {
return new ArrayList();
}
return JSON.parseArray(JSON.toJSONString(list), clazz);
}
/**
* MAP拷贝
* @param map 源
* @return 目标
*/
public static Map<String, Object> copyMap(Map map) {
if(CollectionUtils.isEmpty(map)){
return new HashMap<>();
}
return JSON.parseObject(JSON.toJSONString(map));
}
/**
* json 转 Map
* @param json
* @return
*/
public static Map<String, Object> jsonToMap(String json) {
try {
ObjectMapper objectMapper = new ObjectMapper();
return objectMapper.readValue(json, Map.class);
} catch (Exception ex){
ex.printStackTrace();
}
return null;
}
}
java 常用Bean 转换工具类的相关教程结束。
