最近项目需要跟客户对接一个webservice接口,客户那传json串过来,属于比较复杂的json串,这里跟大家分享下我项目中所用的解析方法:

该方法需要以下jar

转换复杂的JSON对象为 Map对象-LMLPHP

package com.test;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map; import net.sf.json.JSONArray;
import net.sf.json.JSONObject; /**
* 描述
* @author 小当家
* @created 2017年12月7日 上午9:08:03
*/
public class TestJson { /**
*
* 描述: 转换复杂的JSON对象为 Map对象
* @author 小当家
* @created 2017年12月7日 上午9:15:12
* @param jsonStr
* @return
*/
@SuppressWarnings("unused")
private static Map<String, Object> parseJSON2Map(String jsonStr) {
Map<String, Object> map = new HashMap<String, Object>();
// 最外层解析
JSONObject json = JSONObject.fromObject(jsonStr);
for (Object k : json.keySet()) {
Object v = json.get(k);
// 如果内层还是数组的话,继续解析
if (v instanceof JSONArray) {
List<Map<String, Object>> list = new ArrayList<Map<String, Object>>();
Iterator<JSONObject> it = ((JSONArray) v).iterator();
while (it.hasNext()) {
JSONObject json2 = it.next();
list.add(parseJSON2Map(json2.toString()));
}
map.put(k.toString(), list);
} else {
map.put(k.toString(), v);
}
}
return map;
} public static void main(String[] args) {
String jsonString = "{\"payCnt\":3,\"payInfo\":[{\"payInfoMain\":{\"ordNum\":\"201206010000001\",\"transSite\":\"\",\"transBankNo\":\"TEPB\",\"bankAcctNo\":\"010\",\"totAmt\":\"30\",\"billChkCode\":\"3316\",\"tollDeptNo\":\"NDZSXH000\",\"busType\":\"FJFS\",\"other1\":\"remark1\",\"other2\":\"remark2\",\"bankName\":\"模拟银行2\",\"transSeq\":\"20120601000000001\",\"tranType\":\"\",\"siteCode\":\"200001\",\"eBillVerNo\":\"000001\",\"tollDeptName\":\"宁德市会计专业技术考试领导小组\",\"itemCnt\":1,\"tranUser\":\"\",\"payer\":\"宁德\",\"eBillNo\":\"201206010000000136\",\"transBankName\":\"模拟银行2\",\"transAcctNo\":\"010\",\"siteName\":\"国家司法考试网\",\"ordDate\":\"20120601\"},\"eBillNo\":\"201206010000000136\",\"payInfoItem\":[{\"amt\":\"30\",\"chrgStd\":\"1\",\"cnt\":\"1\",\"chrgName\":\"初级网络工程师报名费\",\"msrUint\":\"元/科\",\"chrgCode\":\"KA460001\"}]},{\"payInfoMain\":{\"ordNum\":\"201206010000001\",\"transSite\":\"\",\"transBankNo\":\"TEPB\",\"bankAcctNo\":\"010\",\"totAmt\":\"10\",\"billChkCode\":\"2258\",\"tollDeptNo\":\"777516727\",\"busType\":\"FJFS\",\"other1\":\"remark1\",\"other2\":\"remark2\",\"bankName\":\"模拟银行2\",\"transSeq\":\"20120601000000001\",\"tranType\":\"\",\"siteCode\":\"200001\",\"eBillVerNo\":\"000001\",\"tollDeptName\":\"福建省省会计管理处\",\"itemCnt\":1,\"tranUser\":\"\",\"payer\":\"缴款人\",\"eBillNo\":\"201206010000000134\",\"transBankName\":\"模拟银行2\",\"transAcctNo\":\"010\",\"siteName\":\"国家司法考试网\",\"ordDate\":\"20120601\"},\"eBillNo\":\"201206010000000134\",\"payInfoItem\":[{\"amt\":\"10\",\"chrgStd\":\"1\",\"cnt\":\"1\",\"chrgName\":\"交通罚没\",\"msrUint\":\"元/科\",\"chrgCode\":\"460\"}]},{\"payInfoMain\":{\"ordNum\":\"201206010000001\",\"transSite\":\"\",\"transBankNo\":\"TEPB\",\"bankAcctNo\":\"010\",\"totAmt\":\"20\",\"billChkCode\":\"0198\",\"tollDeptNo\":\"003604520\",\"busType\":\"FJFS\",\"other1\":\"remark1\",\"other2\":\"remark2\",\"bankName\":\"模拟银行2\",\"transSeq\":\"20120601000000001\",\"tranType\":\"\",\"siteCode\":\"200001\",\"eBillVerNo\":\"000001\",\"tollDeptName\":\"福州市财政局会计管理处\",\"itemCnt\":1,\"tranUser\":\"\",\"payer\":\"福州\",\"eBillNo\":\"201206010000000135\",\"transBankName\":\"模拟银行2\",\"transAcctNo\":\"010\",\"siteName\":\"国家司法考试网\",\"ordDate\":\"20120601\"},\"eBillNo\":\"201206010000000135\",\"payInfoItem\":[{\"amt\":\"20\",\"chrgStd\":\"1\",\"cnt\":\"1\",\"chrgName\":\"会计从业资格证考务费\",\"msrUint\":\"元/科\",\"chrgCode\":\"BA460\"}]}]}";
Map<String, Object> map= parseJSON2Map(jsonString);
System.out.println(map.get("payCnt"));//获取电子票据数目
List list = (List)map.get("payInfo");//获取电子票据信息(List类型)
Map t = (Map)list.get(0);//获取第一行记录,Map类型
Map mainMap = (Map)t.get("payInfoMain");//获取电子票据主要信息,Map类型
String user = (String)mainMap.get("payer");//取出缴款人
System.out.println(user); }
}

经过测试后台打印:3    宁德

05-11 16:04