Java tutorial
/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package forumbox; import java.io.BufferedWriter; import java.io.File; import java.io.FileInputStream; import java.io.FileWriter; import java.io.IOException; import java.io.PrintWriter; import javax.servlet.RequestDispatcher; import javax.servlet.ServletContext; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.json.simple.JSONArray; import org.json.simple.JSONObject; import org.json.simple.parser.JSONParser; import org.json.simple.parser.ParseException; import java.io.*; import java.text.DateFormat; import java.text.SimpleDateFormat; import java.util.Date; import java.util.Iterator; import javax.servlet.*; import javax.servlet.http.*; /** * * @author dinalidabarera */ public class PostingnewpostServlet extends HttpServlet { public static int count = 0; public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { DateFormat dateFormat = new SimpleDateFormat("yyyyMMddHHmmssms"); Date date = new Date(); String id = dateFormat.format(date); //response.addHeader("Access-Control-Allow-Origin", "*"); PrintWriter out = response.getWriter(); String typed = request.getParameter("userInput"); //getting the parameter which was sent by the client String[] data = new String[3]; data = typed.split("/"); // out.print(data[0]); String username = data[0]; String title = data[1]; String description = data[2]; filewrite("/home/dinalidabarera/NetBeansProjects/NewFolder/forum4/admin01/post/", username, title, description, response, id); //ompare each name in the names array with the user input pattern and when a matching name is found send that in the response ServletContext sc = getServletContext(); RequestDispatcher view = sc.getRequestDispatcher("/addPost.jsp"); view.forward(request, response); } public void filewrite(String url, String username, String title, String description, HttpServletResponse response, String id) throws IOException { count++; /* BufferedWriter out ; out = new BufferedWriter(new FileWriter(url,true)); out.write(count+"/"+array[0]+"/"+array[1]+"/"+array[2]+";"); out.close(); }catch (Exception e) { System.out.println("Error: " + e.getMessage()); } */ JSONObject post = new JSONObject(); JSONArray comments = new JSONArray(); JSONArray toapprove = new JSONArray(); JSONParser parser = new JSONParser(); JSONObject list = null; post.put("title", title); post.put("description", description); post.put("id", id); post.put("username", username); // post.put("comments",comments); // post.put("toapprove",toapprove); try { Object obj = parser.parse(new FileReader(url + "list.json")); list = (JSONObject) obj; JSONArray msg = (JSONArray) list.get("list"); msg.add(id); list.remove("list"); list.put("list", msg); } catch (Exception e) { response.setContentType("text/html"); PrintWriter out = response.getWriter(); out.println("Adding new ID is unsuccessful"); out.println(e); out.println("......................"); } try { File file = new File(url + id + ".json"); file.createNewFile(); BufferedWriter out; out = new BufferedWriter(new FileWriter(file)); out.write(post.toJSONString()); out.close(); File fileList = new File(url + "list.json"); // fileList.createNewFile(); // BufferedWriter outin ; // outin = new BufferedWriter(new FileWriter(fileList)); // outin.write(post.toJSONString()); FileWriter listwrite = new FileWriter(fileList); listwrite.write(list.toJSONString()); listwrite.flush(); listwrite.close(); //outin.close(); } catch (IOException e) { response.setContentType("text/html"); PrintWriter out = response.getWriter(); out.println("adding new post is unsuccessful"); out.println(e); out.println("......................"); } } }