fastJson 解析json

 maven:

<dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.2.73</version>
        </dependency>

 解析字符串，获取值：
 String str = "{code:1}";
 String str = "{code:'123'}";
 JSONObject jsonObject = JSON.parseObject(str);
 Integer code = jsonObject.getInteger("code");
 String code = jsonObject.getString("code");

 User:{
    id:Integer,
　　 name: String
 }
 
 解析字符串，转为模型对象：
 String data1 = "{id:1,name:'abc'}";
 User user = JSON.parseObject(data1, User.class);