extjs不能发送ajax请求，本人新手，求大神指点，代码如下。
本帖最后由 showbo 于 2013-05-27 13:50:52 编辑 html代码
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>lo.html</title>
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="this is my page">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<!--<link rel="stylesheet" type="text/css" href="./styles.css">-->
<link rel="stylesheet" type="text/css" href="extjs/resources/css/ext-all.css">
<script type="text/javascript"src="extjs/adapter/ext/ext-base.js"></script>
<script type="text/javascript" src="extjs/ext-all.js"></script>
<script type="text/javascript" charset="gbk" src="ceshi.js"></script>
</head>
<body>
用户名： <input type="text" id="uname" >
密码：<input type="text" id="upass">
<input type="button" value="提交" id="tj">
</body>
</html>
/**
*
*/
Ext.onReady(function(){
alert("ok");
Ext.get('tj').on("click",function(){
/*alert("ok");*/
Ext.Ajax.request({
url:"http://127.0.0.1:8080/ext/hello",
method:'POST',
params:{
uname:Ext.getDom('uname').value,
upass:Ext.getDom('upass').value
},
success:function(resp){
alert(resp.responseText);
}
});
});
});
import java.io.IOException;Ext?JS Ajax
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class hello extends HttpServlet {
/**
* Constructor of the object.
*/
public hello() {
super();
}
/**
* Destruction of the servlet. <br>
*/
public void destroy() {
super.destroy(); // Just puts "destroy" string in log
// Put your code here
}
/**
* The doGet method of the servlet. <br>
*
* This method is called when a form has its tag value method equals to get.
*
* @param request the request send by the client to the server
* @param response the response send by the server to the client
* @throws ServletException if an error occurred
* @throws IOException if an error occurred
*/
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
PrintWriter out = response.getWriter();
System.out.println("你好");
out.print("success");
out.flush();
out.close();
}
/**
* The doPost method of the servlet. <br>
*
* This method is called when a form has its tag value method equals to post.
*
* @param request the request send by the client to the server
* @param response the response send by the server to the client
* @throws ServletException if an error occurred
* @throws IOException if an error occurred
*/
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
PrintWriter out = response.getWriter();
System.out.println("你好！");out.print("success");
out.flush();
out.close();
}
/**
* Initialization of the servlet. <br>
*
* @throws ServletException if an error occurs
*/
public void init() throws ServletException {
// Put your code here
}
}
