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JSONExample.java
Upload User: shen332233
Upload Date: 2021-09-03
Package Size: 7478k
Code Size: 2k
Category:
Ajax
Development Platform:
Java
- package ajaxbook.chap3;
- import java.io.*;
- import java.net.*;
- import java.text.ParseException;
- import javax.servlet.*;
- import javax.servlet.http.*;
- import org.json.JSONObject;
- public class JSONExample extends HttpServlet {
- protected void doPost(HttpServletRequest request, HttpServletResponse response)
- throws ServletException, IOException {
- String json = readJSONStringFromRequestBody(request);
- //Use the JSON-Java binding library to create a JSON object in Java
- JSONObject jsonObject = null;
- try {
- jsonObject = new JSONObject(json);
- }
- catch(ParseException pe) {
- System.out.println("ParseException: " + pe.toString());
- }
- String responseText = "You have a " + jsonObject.getInt("year") + " "
- + jsonObject.getString("make") + " " + jsonObject.getString("model")
- + " " + " that is " + jsonObject.getString("color") + " in color.";
- response.setContentType("text/xml");
- response.getWriter().print(responseText);
- }
- private String readJSONStringFromRequestBody(HttpServletRequest request){
- StringBuffer json = new StringBuffer();
- String line = null;
- try {
- BufferedReader reader = request.getReader();
- while((line = reader.readLine()) != null) {
- json.append(line);
- }
- }
- catch(Exception e) {
- System.out.println("Error reading JSON string: " + e.toString());
- }
- return json.toString();
- }
- }