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November 29, 2018 03:41
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Writting a string from servlet java to javascript
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| package servlet; | |
| import java.io.IOException; | |
| import javax.servlet.RequestDispatcher; | |
| import javax.servlet.ServletException; | |
| import javax.servlet.annotation.WebServlet; | |
| import javax.servlet.http.HttpServlet; | |
| import javax.servlet.http.HttpServletRequest; | |
| import javax.servlet.http.HttpServletResponse; | |
| @WebServlet(name = "DemoServlet", urlPatterns = {"/DemoServlet"}) | |
| public class DemoServlet extends HttpServlet { | |
| protected void processRequest(HttpServletRequest request, HttpServletResponse response) | |
| throws ServletException, IOException { | |
| response.setContentType("text/html;charset=UTF-8"); | |
| RequestDispatcher RequetsDispatcherObj = request.getRequestDispatcher("index.jsp"); | |
| RequetsDispatcherObj.forward(request, response); | |
| } | |
| @Override | |
| protected void doGet(HttpServletRequest request, HttpServletResponse response) | |
| throws ServletException, IOException { | |
| processRequest(request, response); | |
| } | |
| @Override | |
| protected void doPost(HttpServletRequest request, HttpServletResponse response) | |
| throws ServletException, IOException { | |
| processRequest(request, response); | |
| } | |
| @Override | |
| public String getServletInfo() { | |
| return "Short description"; | |
| } | |
| public static String sayHello() { | |
| return "Hey, I'm robot. And you?"; | |
| } | |
| } |
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| <%@page import="servlet.DemoServlet"%> | |
| <%@page contentType="text/html" pageEncoding="UTF-8"%> | |
| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> | |
| <title>Home Page</title> | |
| </head> | |
| <body> | |
| <input type="button" value="Click Me" onclick="loadText()" /> | |
| <div id="resultId"> | |
| Nội dung ajax sẽ được load ở đây | |
| </div> | |
| <script language="javascript"> | |
| function loadText() { | |
| document.getElementById("resultId").innerHTML = String("<%= DemoServlet.sayHello() %>"); | |
| } | |
| </script> | |
| </body> | |
| </html> |
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