1.界面輸出背景資料：
servlet代碼:
package com.test;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
@SuppressWarnings("serial")
public class MyServlet extends HttpServlet {
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
response.setContentType("text/html");
response.setCharacterEncoding("UTF-8");
String _str = "[{name:'唐伯虎',age:25,sex:'男'},{name:'楚留香',age:24,sex:'女'}]";
response.getWriter().print(_str);
}
}
web.xml:
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<servlet>
<servlet-name>myservlet</servlet-name>
<servlet-class>com.test.MyServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>myservlet</servlet-name>
<url-pattern>/myservlet</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>
myserlvet.js:
Ext.onReady(function() {
var _store = new Ext.data.JsonStore({
url : "http://localhost:8080/zz/myservlet",
fields : ["name", "age", "sex"]
});
_store.load();
_store.on("load", function() {
alert(_store.getCount());
alert(Ext.util.JSON.encode(_store.getAt(1).data));
alert(_store.getAt(0).get("name"));
});
});
最後index.html:
<html>
<head>
<title>index.html</title>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<link rel="stylesheet" type="text/css"
href="../extjs/resources/css/ext-all.css" target="_blank" rel="external nofollow" >
<script type="text/javascript" src="../extjs/adapter/ext/ext-base.js"></script>
<script type="text/javascript" src="../extjs/ext-core.js"></script>
<script type="text/javascript" src="../extjs/ext-all.js"></script>
<script type="text/javascript" src="../js/myservlet.js"></script>
</head>
<body>
</body>
</html>
2.給伺服器發送資料：
function sFn(){
alert('儲存成功');
}
function fFn(){
alert('儲存失敗');
}
Ext.Ajax.request({
url: 'student.ejf?cmd=save’
success: sFn
failure: fFn,
params: { name: '小李',email: ' [email protected]',bornDate: ' 1992-5-6',sex: '男'}
});
parmas是一個json對象，譬如params:{name:'張三',age:19}
那麼你在背景用request.getParameter("name")就是張三
用request.getParameter("age")就是19
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