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一个关于SWF(spring webflow)的DEMO | 一个关于Velocity的例子

2007-11-08

一个关于DWR的例子

关键字: DWR

自己做的一个关于DWR的例子。

index.jsp

-------------------------------------------

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
    <base href="<%=basePath%>">

    <title>DWR DEMO</title>

<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">

</head>
<script type='text/javascript' src='/DWRDemo/dwr/interface/DWRExample.js'></script>
<script type='text/javascript' src='/DWRDemo/dwr/engine.js'></script>
<script type='text/javascript' src='/DWRDemo/dwr/util.js'></script>

dwr.xml

-------------------------------------------------

<?xml version="1.0" encoding="UTF-8"?>
<dwr>

    <allow>
    
        <convert converter="bean" match="com.DemoBean"></convert>

<create creator="new" javascript="DWRExample" class="com.DWRExample" scope="session">
     <include method="getList"/>
     <include method="checkUser"/>
        </create>
   </allow>
</dwr>

********************************

web.xml

----------------------------------------

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.4"
xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">

   <servlet>
    <servlet-name>dwrInvoker</servlet-name>
    <servlet-class>org.directwebremoting.servlet.DwrServlet</servlet-class>
    <init-param>
      <param-name>debug</param-name>
      <param-value>true</param-value>
    </init-param>
    <init-param>
        <param-name>classes</param-name>
    <param-value>java.lang.Object</param-value>
    </init-param>

      <load-on-startup>10</load-on-startup>
</servlet>

<servlet-mapping>
<servlet-name>dwrInvoker</servlet-name>
<url-pattern>/dwr/*</url-pattern>
</servlet-mapping>

</web-app>

***************************************]

DWRExample .java

-------------------------------------------------

package com;

import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;

public class DWRExample implements Serializable {

public List getList()
{
  List list=new ArrayList();
  DemoBean db=null;
  for(int i=0;i<5;i++)
  {
   db=new DemoBean();
   db.setAge(22+i);
   db.setName("ddh"+i);
   list.add(db);
  }


  return list;

}

public boolean checkUser(String name)
{
  if("xy".equals(name))
  {
   return true;
  }else
  {
   return false;

  }
}
}

***********************************

DemoBean .java

---------------------------------------------

package com;

import java.io.Serializable;

public class DemoBean implements Serializable {

private String name;
private int age;

public int getAge() {
  return age;
}
public void setAge(int age) {
  this.age = age;
}
public String getName() {
  return name;
}
public void setName(String name) {
  this.name = name;
}

}