json字符串和object之间的相互转化

package asi;import java.util.ArrayList;import com.alibaba.fastjson.JSON;import com.alibaba.fastjson.JSONException;import com.alibaba.fastjson.JSONObject;public class TestJSONObject { 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); ???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 ??TestJSONObject t=new TestJSONObject(); ??t.setName("Bonnie"); ??t.setSex("female"); ?????System.out.println(Object2JSON(t)); ?}catch(JSONException e){ ??e.printStackTrace(); ?} ??????}}