构造函数JSONObject（String）是未定义的错误 - 无法解析

Question

我试图在servlet中获取一些变量，这些变量都通过ajax调用传递。但我得到构造函数JSONobject（字符串）是未定义的错误。我也导入了必需的lib。请帮忙

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import com.google.gson.Gson;
import com.google.gson.JsonArray;
import com.google.gson.JsonElement;
import com.google.gson.reflect.TypeToken;

import org.json.simple.JSONArray;
import org.json.simple.JSONObject;
import org.json.simple.parser.JSONParser;
import org.json.simple.parser.ParseException;
import org.json.*;


public class insertserv extends HttpServlet {
	private static final long serialVersionUID = 1L;
	
	
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException 
	{    
		
		System.out.println("I am inside insert");
	    String json = "";
		
		
		BufferedReader br = new BufferedReader(new InputStreamReader(request.getInputStream()));
	   

	            if (br != null) {
	                json = br.readLine();
	            }
	 
	   System.out.println(json);
	   
	   JSONObject wholedata= new JSONObject(json);
		
				
	   response.setContentType("application/json"); 
		PrintWriter out= response.getWriter();
		
	}
}

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Answer 1

删除了org.json.simple.JSONObject;并使用org.json.JSONObject更新;它解决了我的问题