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java的JsonObject對象提取值方法

2024-07-14 08:39:52
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實例如下所示:

import com.alibaba.fastjson.JSON;import com.alibaba.fastjson.JSONArray;import com.alibaba.fastjson.JSONObject;import io.swagger.models.auth.In;import java.io.IOException;import java.security.KeyManagementException;import java.security.NoSuchAlgorithmException;import java.util.Iterator;/** * Created by Administrator on 2017/4/21. */public class test {  public static void main(String[] args) throws Exception {        //第一種格式	  /**		* [  		{    		"data ": [      		{        		"building_id ": "*** ",        		"building_num ": "** ",        		"door_name ": "** ",        		"electric ": "** ",        		"room_name ": "** "      		}    		],    		"success ": true  			}			]		*/    String s="[{/"success/":true,/"data/":[{/"building_id/":/"***/",/"building_num/":/"**/",/"room_name/":/"**/",/"door_name/":/"**/",/"electric/":/"**/"}]}]" ;    String b= s.substring(0,s.length()-1);    String c=b.substring(1, b.length());    System.out.println(b+"b___");    JSONObject jsonx = JSON.parseObject(c);    JSONArray ja = jsonx.getJSONArray("data");    for (int i = 0; i < ja.size(); i++) {      JSONObject jo = ja.getJSONObject(i);      String building_id = jo.getString("building_id");      System.out.println(building_id+"building_id>>>>>");    }    //第二種格式	  /**		 * [  			{    			"password ": "*1234567890 ",    			"success ": "true "  			}			]		 */    String s="[{/"success/":/"true/",/"password/":/"*1234567890/"}]";    String b= s.substring(0,s.length()-1);    String c=b.substring(1, b.length());    System.out.println(c+"c___");    JSONObject reagobj = JSONObject.fromObject(c);    String name = reagobj.getString("password");    System.out.println(name+"name,,,,,,");    String password = jm.getString("password");    System.out.println(password);    System.out.println("看看有沒有值"+password);      		//第三種格式		/**		* {  		"data ": {    		"access_token ": "5a7040ccf66bafd06acd39b6f61c19230eaba426755509646d6da23ddd9fb206 ",    		"expires_second ": 36000  		},  		"rlt_code ": "HH0000 ",  		"rlt_msg ": "成功 "		}		 */    String res="{/"data/":{/"access_token/":/"5a7040ccf66bafd06acd39b6f61c19230eaba426755509646d6da23ddd9fb206/",/"expires_second/":36000},/"rlt_code/":/"HH0000/",/"rlt_msg/":/"成功/"}";    JSONObject jsonObject= JSON.parseObject(res);    String data = jsonObject.getString("data");    JSONObject jsondata= JSON.parseObject(data);    String token = jsondata.getString("access_token");				//第四種格式		 /**		 * { 			"data ":				{ 					"total ":23, 					"start ":0, 					"total_page ":3, 					"rows ":						[							{ "op_way ": "3 ", "user_mobile ": "15321918571 ", "op_time ":1493881391976, "pwd_no ":30},							{ "op_way ": "1 ", "op_time ":1493880995000, "pwd_no ":31}						], 					"current_page ":1, 					"page_size ":10				}, 			"rlt_code ": "HH0000 ",			"rlt_msg ": "成功 "		}		*/    String res="{/"data/":{/"total/":23,/"start/":0,/"total_page/":3,/"rows/":[{/"op_way/":/"1/",/"op_time/":1493884964000,/"pwd_no/":31},{/"op_way/":/"3/",/"user_mobile/":/"18518517491/",/"op_time/":1493884615032,/"pwd_no/":30},{/"op_way/":/"3/",/"user_mobile/":/"18518517491/",/"op_time/":1493883836552,/"pwd_no/":30},{/"op_way/":/"1/",/"op_time/":1493883294000,/"pwd_no/":31},{/"op_way/":/"1/",/"op_time/":1493883256000,/"pwd_no/":31},{/"op_way/":/"3/",/"user_mobile/":/"15321918571/",/"op_time/":1493883015371,/"pwd_no/":30},{/"op_way/":/"1/",/"op_time/":1493882007000,/"pwd_no/":31},{/"op_way/":/"3/",/"user_mobile/":/"15321918571/",/"op_time/":1493881498520,/"pwd_no/":30},{/"op_way/":/"3/",/"user_mobile/":/"15321918571/",/"op_time/":1493881391976,/"pwd_no/":30},{/"op_way/":/"1/",/"op_time/":1493880995000,/"pwd_no/":31}],/"current_page/":1,/"page_size/":10},/"rlt_code/":/"HH0000/",/"rlt_msg/":/"成功/"}";    JSONObject jsonObject= JSON.parseObject(res);    String data = jsonObject.getString("data");    JSONObject jsonObjects= JSON.parseObject(data);    JSONArray ja = jsonObjects.getJSONArray("rows");    for (int i = 0; i < ja.size(); i++) {      JSONObject jo = ja.getJSONObject(i);      String op_way = jo.getString("op_way");      String op_time = jo.getString("op_time");      SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");      long lt = new Long(op_time);      Date date = new Date(lt);      res = simpleDateFormat.format(date);      String pwd_no = jo.getString("pwd_no");      String user_mobile = jo.getString("user_mobile");      System.out.println(op_way+res+pwd_no+user_mobile+"------------");    }       }  }

以上這篇java的JsonObject對象提取值方法就是小編分享給大家的全部內容了,希望能給大家一個參考,也希望大家多多支持VeVb武林網。


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