将a=1&b=2&c=3报文转成hutool的JSONObject
import cn.hutool.json.JSONObject;
import cn.hutool.json.JSONUtil;
import java.util.Arrays;
import java.util.Map;
public static JSONObject stringToJsonObj(String str){
String[] strings = str.trim().split("&");
//注意split方法,如果s为【key=】,value为null时,s.split("=")方法会造成toMap报超下标的异常
Map<String, String> stringMap = Arrays.asList(strings).stream()
.map(s -> s.split("=",2))
.collect(Collectors.toMap(strings1 -> strings1[0], strings1 -> strings1[1]));
JSONObject resJson = JSONUtil.parseObj(stringMap);
return resJson;
}