文章内容摘抄至http://www.cnblogs.com/linjiqin/archive/2011/03/28/1998125.html
<?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">
<!-- Spring上下文 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:resource/app*.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- 配置DWR前端控制器 -->
<servlet>
<servlet-name>dwrServlet</servlet-name>
<servlet-class>org.directwebremoting.servlet.DwrServlet</servlet-class>
<!-- 指定配置文件 -->
<init-param>
<param-name>config</param-name>
<!-- 如果有多个用","分开 -->
<param-value>
/WEB-INF/classes/config/dwr.xml
</param-value>
</init-param>
<init-param>
<param-name>debug</param-name>
<param-value>true</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>dwrServlet</servlet-name>
<url-pattern>/dwr/*</url-pattern>
</servlet-mapping>
</web-app>
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE dwr PUBLIC "-//GetAhead Limited//DTD Direct Web Remoting 2.0//EN" "http://getahead.org/dwr/dwr20.dtd">
<!-- 通用dwr配置 -->
<dwr>
<allow>
<!-- 建立JS对象，将目标对象的方法转换成JS对象的方法 -->
<create javascript="helloSrv" creator="new">
<param name="class" value="services.HelloServices"></param>
</create>
<!-- 从Spring中获取Java对象 -->
<create javascript="deptSrv" creator="spring">
<param name="beanName" value="deptServices"></param>
<!-- 禁止执行 -->
<exclude method="deleteDept" />
</create>
<create javascript="loginSrv" creator="spring">
<param name="beanName" value="loginSrv"></param>
</create>
<!-- 指定针对于特定对象的转换器 -->
<convert match="entity.*" converter="bean"></convert>
<convert match="java.lang.Throwable" converter="bean">
<param name="include" value="message"></param>
</convert>
</allow>
</dwr>
creator="spring"说明创建对象的方式是交由“spring”来管理的
<param name="beanName" value="deptServices"></param>
表示要由spring创建的类的名字根据“deptServices”唯一标识去spring的配置文件中查找，形成对应的关系
<convert match="entity.*" converter="bean"></convert>
其中convert="bean"是说明传递的对象和返回的对象的转换是使用bean的方式，这个里面的值是不变的
<?xml version="1.0" encoding="UTF-8"?>
<!--
配置系统基础环境
-->
<beans
xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd"
>
<bean id="deptServices" class="services.DeptServices"></bean>
<bean id="loginSrv" class="services.LoginService"></bean>
</beans>
package entity;
public class Dept {
private Long id;
private String name;
public Dept() {
}
public Dept(Long id, String name) {
this.id = id;
this.name = name;
}
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}
package services;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import entity.Dept;
@SuppressWarnings("unchecked")
public class DeptServices {
public List findDept() {
throw new RuntimeException("查找失败!");
}
public void deleteDept(Long id) {
System.out.println("Delete dept " + id);
}
public List getDeptsForPo() {
List depts = new ArrayList();
depts.add(new Dept(1l, "教质部"));
depts.add(new Dept(2l, "学术部"));
depts.add(new Dept(3l, "就业部"));
depts.add(new Dept(4l, "咨询部"));
return depts;
}
public void saveDept(List<Dept> depts) {
// System.out.println(dept.getId() + ":" + dept.getName());
System.out.println(depts);
}
public List getDepts() {
List depts = new ArrayList();
Map map = new HashMap();
map.put("id", "01");
map.put("name", "教质部");
depts.add(map);
map = new HashMap();
map.put("id", "02");
map.put("name", "学术部");
depts.add(map);
map = new HashMap();
map.put("id", "03");
map.put("name", "就业部");
depts.add(map);
map = new HashMap();
map.put("id", "04");
map.put("name", "咨询部");
depts.add(map);
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
return depts;
}
public void test(){
System.out.println("tests");
}
public void testPar(String s){
System.out.println("testPar " + s);
}
public void testObj(Dept d){
System.out.println(d.getId());
System.out.println(d.getName());
}
}
package services;
/**
* @author dlwu
*
*/
public class HelloServices {
public String sayHello(String name){
System.out.println("Hello now!");
return "Hello " + name + "!";
}
}
<%@ 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>My JSP 'hello.jsp' starting page</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>
<!-- 记得引入js，测试地址： http://localhost:8083/dwrweb/dwr/ -->
<script type="text/javascript" src="dwr/engine.js"></script>
<script type="text/javascript" src="dwr/interface/deptSrv.js"></script>
<script type="text/javascript" src="dwr/util.js"></script>
<script type="text/javascript">
function test(){
//声明dept对象
deptSrv.test();
}
function test1(){
//传递普通的字符
var temp = "test parameter String";
deptSrv.testPar(temp);
}
function test2(){
//传递对象
var obj = {id:"1234",name:"huangbiao"};
deptSrv.testObj(obj);
}
function test3(){
//得到对象
deptSrv.getDepts(function(data){
for(var i = 0; i < data.length; i++ ){
alert(data[i].id);
}
});
}
</script>
<body>
<input value="spring测试" type="button" onclick="test();"/>
<input value="传入一个字符串" type="button" onclick="test1();"/>
<input value="传入一个对象" type="button" onclick="test2();"/>
<input value="接受一个对象" type="button" onclick="test3();"/>
</body>
</html>
<%@ 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>My JSP 'hello.jsp' starting page</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>
<!-- 记得引入js，测试地址： http://localhost:8083/dwrweb/dwr/ -->
<script type="text/javascript" src="dwr/engine.js"></script>
<script type="text/javascript" src="dwr/interface/helloSrv.js"></script>
<script type="text/javascript" src="dwr/util.js"></script>
<script type="text/javascript">
function hello(){
//方法一
//返回处理后的结果信息
/*var fn = function(result){
$("msg").innerHTML = result;
}
helloSrv.sayHello($("name").value, fn);*/
//方法二
helloSrv.sayHello($("name").value, function(result){
$("msg").innerHTML=result;
});
//方法三
//使用如下的好处为：不用导入如上三个js
//第一个参数: dwr访问路径，在web.xml中配置，如： <url-pattern>/dwr/*</url-pattern>
//第二个参数: dwr与java服务器通信变量，在dwr.xml中声明
//第三个参数: 服务器方法名
//第四个参数: 页面请求参数，即服务器方法名得参数
//第五个参数: 回调函数
//dwr.engine._execute("dwr", 'helloSrv', 'sayHello', $("name").value, fn);
}
</script>
<body>
<div id="msg"></div>
<input type="text" id="name" />
<input type="button" value="Hello" onclick="hello();" />
</body>
</html>
将请求设置为同步的方法 —— DWREngine.setAsync(true);//异步，false为同步
