java jsonstring变成jsonobject(jpa实体类)

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本文的JsoonObject是fastJSON提供的对象

JSONObject 所需的maven依赖:

<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>fastjson</artifactId>
    <version>1.2.69</version>
</dependency>

先定义一个实体类:

	@Data
    @ToString
    @AllArgsConstructor
    @NoArgsConstructor
   public static class Man{ 
   
        private Integer age;
        private String name;
        private boolean isMan;
   }

JSONObject 转化为实体类:

@Test
    public void jsonToBean() { 
   
        JSONObject json = new JSONObject();
        json.put("age",100);
        json.put("name","yld");
        json.put("isMan",true);
        Man man = json.toJavaObject(Man.class);
        System.out.println(man.toString());
    }

输出结果如下:

JSONObject 转化为List:

@Test
    public void jsonTOList(){ 
   
        List<Man> list = new ArrayList();
        list.add(new Man(22,"ListName1",true));
        list.add(new Man(23,"ListName2",true));
        String json = JSONObject.toJSON(list).toString();
        List<Man> men = JSONObject.parseArray(json, Man.class);
        System.out.println(men);
    }

输出结果如下: