Java 调用 php接口（Ajax）（二）

由于项目里面需要用到Java调用PHP的充值接口，所以学习了一下，以下这个Demo是个小小的例子，写下来做个笔记>

jsp页面：

 <%@ page language="java" import="java.util.*" pageEncoding="utf-8"

 contentType="text/html; charset=GBK"%>

<%

 String path = request.getContextPath();

 String basePath = request.getScheme() + "://"

   + request.getServerName() + ":" + request.getServerPort()

   + path + "/";

%>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

 <head>

  <base href="<%=basePath%>" />

  <meta http-equiv="Content-Type" content="text/html; charset=gb2312" />

  <meta http-equiv="x-ua-compatible" content="ie=7" />

  <title>Lost Crown</title>

  <link rel="icon" href="favicon.ico" />

  <link rel="shortcut icon" href="favicon.ico" />

<script type="text/javascript">

function getXmlHttp(){

    var http_request = false;

    if (window.XMLHttpRequest){

        http_request = new XMLHttpRequest();

        if (http_request.overrideMimeType){

            http_request.overrideMimeType('text/xml');

 }

   }else if (window.ActiveXObject){

        try{

            http_request = new ActiveXObject("Msxml2.XMLHTTP");

        } catch (e){

            try{

                http_request = new ActiveXObject("Microsoft.XMLHTTP");

            }catch (e) {

            }

        }

    }

    if (!http_request){

        alert("不能创建对象！");

        return false;

    }

    return http_request;

}

function result(){

    if(req.readyState == 4 && req.status == 200){

     var names =  req.responseText;

     alert("Hello:"+names);

    }

}

function checkTest(){

 var name = document.getElementById("name").value;

    var ul = "http://localhost:8011/TestAjax/index.php?name=" + name;

    req = getXmlHttp();

    req.onreadystatechange = result;

    req.open("POST",ul,true);

    req.setRequestHeader('If-Modified-Since', '0');

    req.send(null);

}

</script>

</head>

 <body>

  <center>

   <table width="300" border=1>

   <tr align="center">

    <td colspan="2">

     It's A Ajax Test

    </td>

   </tr>

   <tr align="center">

    <td>

     用户名

    </td>

    <td>

     <input type="text" name="name" id="name" value="Jerry"/>

    </td>

   </tr>

   <tr align="center">

    <td colspan="2">

     <input type="button" name="submit" id="submit" value="提交" onclick="checkTest();"/>

    </td>

   </tr>

  </table>

  </center>

 </body>

</html>

php页面：

<?php

$username = $_REQUEST['name'];

echo($username);

?>

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Java 调用 php接口（Ajax）（二）

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