Home  >  Article  >  Java  >  ajax submits to java background to process data

ajax submits to java background to process data

coldplay.xixi
coldplay.xixiforward
2020-08-25 18:17:102009browse

ajax submits to java background to process data

【Related video recommendation: ajax video tutorial

Environment: eclipse struts

The effect to be achieved: Click the button to submit the data to the background and then return to the front desk to display the data

index.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8" 
  pageEncoding="UTF-8"%> 
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 
<html> 
<head> 
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 
<title>Insert title here</title> 
</head> 
<body> 
<input type="text" id="userinput"> 
<input type="button" id="submit"> 
<p id="msg"></p> 
</body> 
<script type="text/javascript" src="jquery-2.1.0.js"></script> 
<script type="text/javascript"> 
window.onload = function() { 
  document.getElementById("submit").onclick = test; 
} 
function test(){ 
  var userinput = document.getElementById("userinput"); 
  $.post("http://localhost:8080/TestSpring/TestAction",{username:userinput.value}, 
  function(data, textStatus){ 
    document.getElementById("msg").innerHTML = data; 
  });  
} 
</script> 
</html>

struts.xml

<action name="TestAction" class="com.action.Test"> 
  <result>index.jsp</result> 
</action>

Test.java

package com.action; 
 
import java.io.PrintWriter; 
import java.util.Map; 
 
import javax.servlet.http.HttpServletRequest; 
import javax.servlet.http.HttpServletResponse; 
 
import org.apache.struts2.ServletActionContext; 
 
import com.opensymphony.xwork2.ActionContext; 
import com.opensymphony.xwork2.ActionSupport; 
 
public class Test extends ActionSupport { 
  @Override 
  public String execute() throws Exception { 
    // TODO Auto-generated method stub 
    HttpServletRequest request = org.apache.struts2.ServletActionContext.getRequest(); 
    HttpServletResponse response = ServletActionContext.getResponse(); 
    request.setCharacterEncoding("utf-8"); 
    response.setCharacterEncoding("utf-8"); 
    PrintWriter out = response.getWriter(); 
    out.write(request.getParameter("username")); 
    out.flush(); 
    out.close(); 
    return SUCCESS; 
  } 
}

Related learning Recommended: java basic tutorial

The above is the detailed content of ajax submits to java background to process data. For more information, please follow other related articles on the PHP Chinese website!

Statement:
This article is reproduced at:jb51.net. If there is any infringement, please contact admin@php.cn delete