java解析json字符串

java解析json数组：需要添加一个jar包，自己搜索即可

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
public static void main(String[] args) throws JSONException {
  String sJson = "[{'gwcxxid':'1','spsl':'2'},{'gwcxxid':'1','spsl':'2'},{'gwcxxid':'3','spsl':'4'}]" ;
  JSONArray jsonArray = new JSONArray(sJson);
  int iSize = jsonArray.length();
  System.out.println( "Size:" + iSize);
  for ( int i = 0 ; i < iSize; i++) {
   JSONObject jsonObj = jsonArray.getJSONObject(i);
   System.out.println( "[" + i + "]gwcxxid=" + jsonObj.get( "gwcxxid" ));
   System.out.println( "[" + i + "]spsl=" + jsonObj.get( "spsl" ));
   System.out.println();
  }
 }