基于org.apache.commons.beanutils.BeanUtils工具类

• 前置条件： 添加jar 包依赖

    <dependency> 
      <groupId>commons-beanutils</groupId>  
      <artifactId>commons-beanutils</artifactId>  
      <version>1.8.3</version> 
    </dependency>  

• Map 转换为 java bean

public static void transMap2Bean(Map<String, Object> map, Object obj) {  
        if (map == null || obj == null) {  
            return;  
        }  
        try {  
            BeanUtils.populate(obj, map);  
        } catch (Exception e) {  
            System.out.println("transMap2Bean2 Error " + e);  
        }  
    }  

• java bean 转换为 Map

public static Map<String, Object> transBean2Map(Object obj) { 
        if (obj == null) {  
            return new HashMap<>();  
        }  
        try {  
            return new BeanMap(obj)
        } catch (Exception e) {  
            System.out.println("transBean2Map Error " + e);  
        }  
    }