fastjson的使用

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package sdk;   import com.alibaba.fastjson.JSON; import com.alibaba.fastjson.JSONException; import com.alibaba.fastjson.JSONObject;   import java.util.ArrayList;   public class Test2 {     private String name;     private String sex;       public String getName() {         return name;     }     public void setName(String name) {         this.name = name;     }     public String getSex() {         return sex;     }     public void setSex(String sex) {         this.sex = sex;     }       //json字符串转化为JSONObject类     public static JSONObject JSON2Object(String json){         JSONObject object=(JSONObject) JSONObject.parseObject(json);         return object;     }     //json的list转化为ArrayList<JSONObject>     public static ArrayList<JSONObject> JSONList2Object(String jsonList){         ArrayList<JSONObject> objectList=(ArrayList<JSONObject>) JSONObject.parseObject(jsonList,ArrayList.class);         return objectList;     }       //object转化为json     public static String Object2JSON(Object o){         return JSON.toJSONString(o);     }       public static void main(String[] args) {           String json="{\"username\": \"Bonnie\",\"listData\": [{\"address\": \"石景山区\",\"street\": \"裕华路\"},{\"address\": \"海淀区\",\"street\": \"中山路\"}]}";         try{             //1、测试json转换成object             JSONObject object=JSON2Object(json);             String username=(String) object.get("username");             System.out.println(username);               String listData=String.valueOf(object.get("listData"));             //(String) object.get("listData");             System.out.println(listData+"+++++++++++++");               ArrayList<JSONObject> objectList=JSONList2Object(listData);             System.out.println("JSONList2Object----------------");             for(int i=0;i<objectList.size();i++){                 System.out.println((String)((JSONObject) (objectList.toArray())[i]).get("address"));                 System.out.println((String)((JSONObject) (objectList.toArray())[i]).get("street"));             }             //2、测试object转化成json             Test2 t=new Test2();             t.setName("Bonnie");             t.setSex("female");               System.out.println(Object2JSON(t));         }catch(JSONException e){             e.printStackTrace();         }     } }

　　

测试demo

需要导入的jar包

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<dependency>    　　<groupId>com.alibaba</groupId>   　　 <artifactId>fastjson</artifactId>   　　 <version>1.2.2</version>   </dependency>