java中字符串怎么转json？
string类型如果要转换成json的话，就需要写成这样的形式，如下：\x0d\x0aString jsonStr ="{'id':'11','parentId':'root','refObj':{'existType':'exist','deptType':'emp','treeNodeType':'dept'}}";\x0d\x0a JSONObject jsonObj = new JSONObject(jsonStr);\x0d\x0a JSONObject refObj = new JSONObject(jsonObj.getString("refObj"));\x0d\x0a String existType = refObj.getString("existType");\x0d\x0a System.out.println(existType);\x0d\x0ajar使用的是org.json.jar绛旓細杩欐浠ｇ爜涓紝ObjectMapper绫绘槸Jackson搴撲腑鐨勪竴涓牳蹇冪被锛岀敤浜庡皢Java瀵硅薄杞崲涓篔SON鏍煎紡銆傞鍏堝垱寤轰竴涓狾bjectMapper瀵硅薄锛岀劧鍚庤皟鐢ㄥ叾writeValueAsString鏂规硶灏哖erson瀵硅薄杞崲涓篔SON鏍煎紡鐨勫瓧绗︿覆銆傛渶鍚庡皢璇ュ瓧绗︿覆杩斿洖鍗冲彲銆傞渶瑕佹敞鎰忕殑鏄紝濡傛灉瑕佸皢Java瀵硅薄杞崲涓篔SON鏍煎紡锛岄渶瑕佷负璇ュ璞℃坊鍔爂etter鏂规硶锛屼互渚縊bjectMapper...
绛旓細鎼json-lib.jar 杩欎釜鍖呯殑渚嬪瓙锛JSONObject obj = new JSONObject();obj.put("name", "kotomi");obj.toString();寰楀埌:{"name":"kotomi"} 涔熷彲浠ュ惂鑷繁瀹氫箟鐨勫疄浣撹浆锛屽 JSONObject.fromObject(xxx);xxx鏄綘鑷繁瀹氫箟鐨勫疄浣擄紝浠栦細鍚xx閲屾彁渚涗簡getter鐨勯兘杞垚json ...
绛旓細java涓灏嗘暟鎹皝瑁涓篔SON鍖,鍙互浣跨敤java鎻愪緵鐨jsonArray杩欎釜宸ュ叿绫昏繘琛杞崲,浠ｇ爜濡備笅: package com.json;import java.io.IOException;import java.util.ArrayList;import java.util.Collection;import java.util.HashMap;import java.util.Iterator;import java.util.List;import java.util.Map;import javax.servlet.http...
绛旓細浣犲幓搴﹀鎵句竴涓狦oogle鐨勯」鐩彨鍋氣済son鈥濓紝杩欎釜宸ュ叿灏辫兘瀹炵幇JAVA鍜JSON涔嬮棿鐨勪簰杞
绛旓細JSONArray jsonArr = JSONArray.fromObject(jsonStr);
绛旓細浣犲ソ锛侀渶瑕佸紩鍏astjson杩欎釜jar鍖咃紝鑰屼笖鐗堟湰瑕侀珮浜1.2.3锛屽洜涓篎eature.OrderedField鏄粠1.2.3寮濮嬪紩鍏ョ殑銆俰mport java.util.HashMap;import java.util.LinkedHashMap; import com.alibaba.fastjson.JSONObject;import com.alibaba.fastjson.parser.Feature; public class Test { public static void main(...
绛旓細闇瑕佸鍏ヤ袱涓猨ar鍖 json-lib鏄敤浜杞崲json瀛楃涓茬殑鏍稿績jar鍖咃紝涓婇潰閭ｄ釜鏄緟鍔╃殑銆傝浆鎹son鏁扮粍灏辨槸JSONArray.fromObject(arrayList).toString();杞崲json瀵硅薄灏辨槸JSONObject.fromObject(arrayList).toString();
绛旓細} } 锛2锛夐氳繃GSON宸ュ叿瀹炵幇锛氬彧闇瑕佸垱寤篏SON瀵硅薄锛岄氳繃toJson鏂规硶杞崲鍗冲彲銆傚渚嬶細//妯℃嫙Java鏁版嵁 Person person = new Person("鏁忔晱", 23, "濂", "鍖椾含甯傛捣娣鍖");//鍒涘缓GSON瀵硅薄 Gson gson = new Gson();//璋冪敤toJson鏂规硶鍗冲彲杞崲涓瀛楃涓茬殑json鏍煎紡 String json = gson.toJson(person);...
绛旓細灏嗘暟鎹疄浣杞崲涓 JSON 瀛楃涓茬殑鏂规硶锛氬厛灏java瀵硅薄杞崲涓簀son瀵硅薄锛屽湪灏唈son瀵硅薄杞崲涓簀son瀛楃涓 JSONObject json = JSONObject.fromObject(obj);//灏唈ava瀵硅薄杞崲涓簀son瀵硅薄 String str = json.toString();//灏唈son瀵硅薄杞崲涓哄瓧绗︿覆 鍙傝冧唬鐮佸涓嬶細package baz.parse;import java.util.ArrayList;impor...
绛旓細浣犵殑浠ｇ爜浼拌鏄 jsonobject jo = 锛JSonObject)str;//灏嗗瓧绗︿覆寮鸿浆鎴恓sonobject锛屾鏃朵細涓婅堪閿欒銆傝В鍐虫閿欒鐨勬濊矾鏄細灏嗕竴涓瀛楃涓茶浆鎴恓son瀵硅薄锛屽苟涓嶈兘浣跨敤寮鸿浆锛岃屽簲璇ヤ娇鐢ㄧ浉鍏鐨刯son鍖咃紝瀹冧滑鎻愪緵浜嗗瓧绗︿覆鍜宩sonobject銆乯sonarry绛夊璞杞崲鐨api銆俫oogle涓涓嬪瓧绗︿覆鍜宩son瀵硅薄浜掕浆锛屽嵆鍙壘鍒拌В鍐虫柟妗...
