java中map与实体类的相互转换操作

<dependency>
   <groupId>com.alibaba</groupId>
    <artifactId>fastJSON</artifactId>
    <version>1.2.54</version>
</dependency>

import com.alibaba.fastjson.JSON;

JSON.parseObject(JSON.toJSONString(源数据), 转换后数据类型.class);

// 将 Map 转换为 实体类
User user = JSON.parseObject(JSON.toJSONString(user01), User.class);
System.out.println(user);
// 将 实体类 转换为 Map
Map map = JSON.parseObject(JSON.toJSONString(user), Map.class);
System.out.println(map);

<dependency>
     <groupId>com.alibaba</groupId>
     <artifactId>fastjson</artifactId>
     <version>1.2.30</version>
 </dependency>

JSON.parseObject(JSON.toJSONString(Map<String, ? extends Object>), Class<T> bean);

<dependency>
    <groupId>commons-beanutils</groupId>
    <artifactId>commons-beanutils</artifactId>
    <version>1.9.3</version>
</dependency>

BeanUtils.populate(Object bean, Map<String, ? extends Object> map)