org.json.JSONObject对象转json,json新增元素，根据json的key获取值。以及list对象格式字符串转jsonArray

首先设置好多类，并set值，制作一个比较复杂的含有map ,list ,等层级嵌套的对象

package testMap.test;import java.util.ArrayList;import java.util.HashMap;import java.util.Iterator;import java.util.List;import java.util.Map;import org.json.JSONArray;import org.json.JSONException;import org.json.JSONObject;import testMap.bean.AllJava;import testMap.bean.CreditData;import testMap.bean.ZzcAntifraudReport_antifraudHittedRulesList;import testMap.bean.ZzcAntifraudReport_blacklistRecordsList;import testMap.bean.ZzcAntifraudReport_reasonCode;public class TestClass {public static void main(String[] args) {// TODO Auto-generated method stubZzcAntifraudReport_antifraudHittedRulesList rule=new ZzcAntifraudReport_antifraudHittedRulesList();rule.setCc("CC");rule.setDd("dd");ZzcAntifraudReport_antifraudHittedRulesList rule2=new ZzcAntifraudReport_antifraudHittedRulesList();rule2.setCc("cc2");rule2.setDd("dd2");ZzcAntifraudReport_blacklistRecordsList records=new ZzcAntifraudReport_blacklistRecordsList();records.setAa("aa");records.setBb("bb");ZzcAntifraudReport_reasonCode code=new ZzcAntifraudReport_reasonCode();code.setEe("ee");code.setFf("ff");CreditData data=new CreditData();List<ZzcAntifraudReport_antifraudHittedRulesList> rulesLists=new ArrayList<ZzcAntifraudReport_antifraudHittedRulesList>();rulesLists.add(rule);rulesLists.add(rule2);data.setAntifraudHittedRulesList(rulesLists);data.setZzcAntifraudReport_count(33);data.setZzcAntifraudReport_id("tt");AllJava allJava=new AllJava();Map<String, Object> creditMapsMap=new HashMap<String, Object>();creditMapsMap.put("creditData", data);allJava.setCreditMap(creditMapsMap);allJava.setIfsuccess(true);//---------至此为复杂对象赋值完毕//对象转jsonJSONObject jsonObject=new JSONObject(allJava);System.err.println("========"+jsonObject.toString());//输出的结果是：========{"ifsuccess":true,"creditMap":{"creditData":{"zzcAntifraudReport_executedAt":null,"resonCode":null,"zzcAntifraudReport_id":"tt","blacklistRecordsList":null,"zzcAntifraudReport_count":33,"zzcAntifraudReport_riskLevel":null,"antifraudHittedRulesList":[{"dd":"dd","cc":"CC"},{"dd":"dd2","cc":"cc2"}],"zzcAntifraudReport_tenantCount":0}}}try {//通过key值获取value的第一种方法Object aaString=jsonObject.get("creditMap");JSONObject jsonObject2=new JSONObject(aaString.toString());Object aaString2=jsonObject2.get("creditData");System.out.println(aaString2);//输出的结果是：{"zzcAntifraudReport_executedAt":null,"resonCode":null,"zzcAntifraudReport_id":"tt","blacklistRecordsList":null,"zzcAntifraudReport_count":33,"antifraudHittedRulesList":[{"dd":"dd","cc":"CC"},{"dd":"dd2","cc":"cc2"}],"zzcAntifraudReport_riskLevel":null,"zzcAntifraudReport_tenantCount":0}JSONObject jsonObject3=new JSONObject(aaString2.toString());//直接输出System.out.println(jsonObject3.get("zzcAntifraudReport_id"));//输出结果是：ttSystem.out.println(jsonObject3.get("antifraudHittedRulesList"));//输出结果是：[{"dd":"dd","cc":"CC"},{"dd":"dd2","cc":"cc2"}]//使用getString(),getInt()等自带方法获取值String reportId=jsonObject3.getString("zzcAntifraudReport_id");System.err.println("reportId"+reportId);//reportIdttint count=jsonObject3.getInt("zzcAntifraudReport_count");System.err.println("count"+count);//count33//使用jsonArray 获取map或list<object>格式的字符串，转成jsonArrayObject list=jsonObject3.get("antifraudHittedRulesList");JSONArray jsonArray =jsonObject3.getJSONArray("antifraudHittedRulesList");for(int i=0;i<jsonArray.length();i++){JSONObject jsonObject4=jsonArray.getJSONObject(i);jsonObject4.get("dd");jsonObject4.get("cc");System.out.println("---"+jsonObject4.toString());//---{"dd":"dd","cc":"CC"}//---{"dd":"dd2","cc":"cc2"}}System.out.println(jsonArray);//[{"dd":"dd","cc":"CC"},{"dd":"dd2","cc":"cc2"}]//使用getBoolean()获取boolean类型boolean ifsuccess=jsonObject.getBoolean("ifsuccess");System.err.println("ifsuccess="+ifsuccess);//ifsuccess=true} catch (JSONException e) {// TODO Auto-generated catch blocke.printStackTrace();}}}

使用到的类：从里到外：

package testMap.bean;public class ZzcAntifraudReport_reasonCode {String ee;String ff;public String getEe() {return ee;}public void setEe(String ee) {this.ee = ee;}public String getFf() {return ff;}public void setFf(String ff) {this.ff = ff;}}

package testMap.bean;public class ZzcAntifraudReport_blacklistRecordsList {String aa;String bb;public String getAa() {return aa;}public void setAa(String aa) {this.aa = aa;}public String getBb() {return bb;}public void setBb(String bb) {this.bb = bb;}}

package testMap.bean;public class ZzcAntifraudReport_antifraudHittedRulesList {String cc;String dd;public String getCc() {return cc;}public void setCc(String cc) {this.cc = cc;}public String getDd() {return dd;}public void setDd(String dd) {this.dd = dd;}@Overridepublic String toString() {return "ZzcAntifraudReport_antifraudHittedRulesList [cc=" + cc+ ", dd=" + dd + "]";}}

package testMap.bean;import java.util.Date;import java.util.List;public class CreditData {private String ZzcAntifraudReport_id;private Date ZzcAntifraudReport_executedAt;private List<ZzcAntifraudReport_blacklistRecordsList> blacklistRecordsList;private List<ZzcAntifraudReport_antifraudHittedRulesList>  antifraudHittedRulesList;private List<ZzcAntifraudReport_reasonCode> resonCode;private int ZzcAntifraudReport_tenantCount;private String ZzcAntifraudReport_riskLevel;private int ZzcAntifraudReport_count;public String getZzcAntifraudReport_id() {return ZzcAntifraudReport_id;}public void setZzcAntifraudReport_id(String zzcAntifraudReport_id) {ZzcAntifraudReport_id = zzcAntifraudReport_id;}public Date getZzcAntifraudReport_executedAt() {return ZzcAntifraudReport_executedAt;}public void setZzcAntifraudReport_executedAt(Date zzcAntifraudReport_executedAt) {ZzcAntifraudReport_executedAt = zzcAntifraudReport_executedAt;}public List<ZzcAntifraudReport_blacklistRecordsList> getBlacklistRecordsList() {return blacklistRecordsList;}public void setBlacklistRecordsList(List<ZzcAntifraudReport_blacklistRecordsList> blacklistRecordsList) {this.blacklistRecordsList = blacklistRecordsList;}public List<ZzcAntifraudReport_antifraudHittedRulesList> getAntifraudHittedRulesList() {return antifraudHittedRulesList;}public void setAntifraudHittedRulesList(List<ZzcAntifraudReport_antifraudHittedRulesList> antifraudHittedRulesList) {this.antifraudHittedRulesList = antifraudHittedRulesList;}public List<ZzcAntifraudReport_reasonCode> getResonCode() {return resonCode;}public void setResonCode(List<ZzcAntifraudReport_reasonCode> resonCode) {this.resonCode = resonCode;}public int getZzcAntifraudReport_tenantCount() {return ZzcAntifraudReport_tenantCount;}public void setZzcAntifraudReport_tenantCount(int zzcAntifraudReport_tenantCount) {ZzcAntifraudReport_tenantCount = zzcAntifraudReport_tenantCount;}public String getZzcAntifraudReport_riskLevel() {return ZzcAntifraudReport_riskLevel;}public void setZzcAntifraudReport_riskLevel(String zzcAntifraudReport_riskLevel) {ZzcAntifraudReport_riskLevel = zzcAntifraudReport_riskLevel;}public int getZzcAntifraudReport_count() {return ZzcAntifraudReport_count;}public void setZzcAntifraudReport_count(int zzcAntifraudReport_count) {ZzcAntifraudReport_count = zzcAntifraudReport_count;}@Overridepublic String toString() {return "CreditData [ZzcAntifraudReport_id=" + ZzcAntifraudReport_id+ ", ZzcAntifraudReport_executedAt="+ ZzcAntifraudReport_executedAt + ", blacklistRecordsList="+ blacklistRecordsList + ", antifraudHittedRulesList="+ antifraudHittedRulesList + ", resonCode=" + resonCode+ ", ZzcAntifraudReport_tenantCount="+ ZzcAntifraudReport_tenantCount+ ", ZzcAntifraudReport_riskLevel="+ ZzcAntifraudReport_riskLevel + ", ZzcAntifraudReport_count="+ ZzcAntifraudReport_count + "]";}}

package testMap.bean;import java.util.Map;public class AllJava {boolean ifsuccess;Map<String, Object> creditMap;public boolean isIfsuccess() {return ifsuccess;}public void setIfsuccess(boolean ifsuccess) {this.ifsuccess = ifsuccess;}public Map<String, Object> getCreditMap() {return creditMap;}public void setCreditMap(Map<String, Object> creditMap) {this.creditMap = creditMap;}@Overridepublic String toString() {return "AllJava [ifsuccess=" + ifsuccess + ", creditMap=" + creditMap+ "]";}}