SpringMVC整合DWR(Maven项目+jetty插件运行)

SpringMVC的maven项目创建可以参考这篇文章：/article/5794267.html

建立一个SpringMVC项目如下：





1.pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"> <modelVersion>4.0.0</modelVersion>
<groupId>com.kxw.web</groupId>
<artifactId>springmvc</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>springmvc Maven Webapp</name>
<url>http://maven.apache.org</url>

<repositories>
<repository>
<id>central</id>
<name>Central Repository</name>
<url>https://nexus.sourcesense.com/nexus/content/repositories/public/</url>
<layout>default</layout>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
</repositories>

<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<org.springframework.version>3.0.5.RELEASE</org.springframework.version>
</properties>

<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.10</version>
<scope>test</scope>
</dependency>

<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${org.springframework.version}</version>
</dependency>

</dependencies>
<build>
<finalName>springmvc</finalName>

<plugins>
<plugin>
<groupId>org.mortbay.jetty</groupId>
<artifactId>jetty-maven-plugin</artifactId>
<version>8.1.14.v20131031</version>
<configuration>
<scanIntervalSeconds>200</scanIntervalSeconds>
<webAppConfig>
<contextPath>/springmvc</contextPath>
<defaultsDescriptor>src/main/resources/webdefault.xml</defaultsDescriptor>
</webAppConfig>

<connectors>
<connector implementation="org.eclipse.jetty.server.nio.SelectChannelConnector">
<port>7878</port>
<maxIdleTime>60000</maxIdleTime>
</connector>
</connectors>

</configuration>
</plugin>

</plugins>

</build>
</project>

2.web.xml:

<!DOCTYPE web-app PUBLIC
"-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd" >

<web-app>
<display-name>Archetype Created Web Application</display-name>

<servlet>
<servlet-name>mvcServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>

<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath*:/servlet-context.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>

<servlet-mapping>
<servlet-name>mvcServlet</servlet-name>
<url-pattern>*.action</url-pattern>
</servlet-mapping>

</web-app>

Spring-mvc缺省是在WEB-INF目录下找名称未${servlet-name}-context.xml的配置文件，这里通过contextconfiglocation的配置，将spring-mvc所需的配置文件指向到src\resources\spring\web目录下。

3.servlet-context.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd
">
<context:component-scan base-package="com.kxw.springmvc.controller" />
<bean id="viewResolver"
class="org.springframework.web.servlet.view.UrlBasedViewResolver">
<property name="viewClass"
value="org.springframework.web.servlet.view.JstlView" />
<property name="prefix" value="/WEB-INF/jsp/" />
<property name="suffix" value=".jsp" />
</bean>

</beans>

4.Controller类HelloWorld.java:

package com.kxw.springmvc.controller;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.servlet.ModelAndView;

@Controller
@RequestMapping("/helloworld")
public class Helloworld {

@RequestMapping(method=RequestMethod.GET)
public ModelAndView hello() {
ModelAndView mv = new ModelAndView();
mv.setViewName("helloworld");
return mv;
}
}

5.helloworld.jsp:

<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>JSP Page</title>
</head>
<body>
<h1>Hello World!</h1>
</body>
</html>

6.webdefault.xml:
可去下载jetty-distribution-7.6.12.v20130726.zip,里面便有这个文件

7.运行mvn jetty:run 启动工程后，访问http://localhost:7878/springmvc/helloworld.action ,可以看到Hello World!

创建一个SpringMVC项目之后，接下来来整合DWR

可参考此文章：http://blog.csdn.net/geloin/article/details/7537148



1.导入DWR包和其他必须包,pom.xml:

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"> <modelVersion>4.0.0</modelVersion>
<groupId>com.kxw.web</groupId>
<artifactId>springmvc</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>springmvc Maven Webapp</name>
<url>http://maven.apache.org</url>

<repositories>
<repository>
<id>central</id>
<name>Central Repository</name>
<url>https://nexus.sourcesense.com/nexus/content/repositories/public/</url>
<layout>default</layout>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
</repositories>

<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<org.springframework.version>3.0.5.RELEASE</org.springframework.version>
</properties>

<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.10</version>
<scope>test</scope>
</dependency>

<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${org.springframework.version}</version>
</dependency>

<dependency>
<groupId>org.directwebremoting</groupId>
<artifactId>dwr</artifactId>
<version>3.0.M1</version>
</dependency>

<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>1.7.4</version>
</dependency>

</dependencies>
<build>
<finalName>springmvc</finalName>

<plugins>
<plugin>
<groupId>org.mortbay.jetty</groupId>
<artifactId>jetty-maven-plugin</artifactId>
<version>8.1.14.v20131031</version>
<configuration>
<scanIntervalSeconds>200</scanIntervalSeconds>
<webAppConfig>
<contextPath>/springmvc_dwr</contextPath>
<defaultsDescriptor>src/main/resources/webdefault.xml</defaultsDescriptor>
</webAppConfig>

<connectors>
<connector implementation="org.eclipse.jetty.server.nio.SelectChannelConnector">
<port>7878</port>
<maxIdleTime>60000</maxIdleTime>
</connector>
</connectors>

</configuration>
</plugin>

</plugins>

</build>
</project>

2.在web.xml中配置dwr。只需在配置DispatcherServlet下添加dwr的url-mapping即可，修改后的DispatcherServlet配置如下所示：

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:web="http://xmlns.jcp.org/xml/ns/javaee">
<display-name>Archetype Created Web Application</display-name>
<servlet>
<servlet-name>mvcServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath*:/servlet-context.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>mvcServlet</servlet-name>
<url-pattern>*.action</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>mvcServlet</servlet-name>
<url-pattern>/dwr/*</url-pattern>
</servlet-mapping>
</web-app>

3. 在servlet-context.xml中添加dwr的配置，修改后的文件如下所示：

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc"

xmlns:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop" xmlns:dwr="http://www.directwebremoting.org/schema/spring-dwr"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd http://www.directwebremoting.org/schema/spring-dwr http://directwebremoting.org/schema/spring-dwr/spring-dwr-3.0.xsd
 http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd

">

<aop:aspectj-autoproxy />
<mvc:annotation-driven />

<context:component-scan base-package="com.kxw.springmvc.controller" />
<context:component-scan base-package="com.kxw.dwr.model" />
<bean id="viewResolver"
class="org.springframework.web.servlet.view.UrlBasedViewResolver">
<property name="viewClass"
value="org.springframework.web.servlet.view.JstlView" />
<property name="prefix" value="/WEB-INF/jsp/" />
<property name="suffix" value=".jsp" />
</bean>

<!-- DWR配置 -->

<bean
class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping">
<property name="order" value="1" />
</bean>
<bean
class="org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping">
<property name="order" value="2" />
</bean>
<bean
class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" />
<bean
class="org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter" />
<bean class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
<property name="order" value="3" />
<property value="true" name="alwaysUseFullPath"></property>
<property name="mappings">
<props>
<prop key="/dwr/**">dwrController</prop>
</props>
</property>
</bean>
<dwr:configuration>
<dwr:convert type="bean" class="com.kxw.dwr.model.User"></dwr:convert>
<dwr:convert type="bean" class="com.kxw.dwr.model.Group"></dwr:convert>
</dwr:configuration>
<dwr:controller id="dwrController" debug="true">
<dwr:config-param name="allowScriptTagRemoting"
value="true" />
<dwr:config-param name="crossDomainSessionSecurity"
value="false" />

</dwr:controller>

<dwr:annotation-config id="dwr" />
<dwr:annotation-scan scanRemoteProxy="true"
scanDataTransferObject="true" base-package="com.kxw.dwr.model" />

</beans>

4.Controller类：

package com.kxw.dwr.model;

import java.util.ArrayList;
import java.util.List;

import org.directwebremoting.annotations.RemoteMethod;
import org.directwebremoting.annotations.RemoteProxy;
import org.springframework.stereotype.Controller;

@Controller
@RemoteProxy(name="MyDwr")
public class MyDwr {

@RemoteMethod
public String hello(String world){

System.out.println("hello"+world);

return "hello"+world;
}

@RemoteMethod
public User load(){

User user=new User(10,"Messi",new Group(1,"Bacelona FC"));

return user;

}

@RemoteMethod
public List<User> list(){

List<User> users=new ArrayList<User>();
users.add(new User(7,"Ronaldo",new Group(3,"Real Madrid")));
users.add(new User(11,"Ozil",new Group(8,"Asenal")));
users.add(new User(20,"Van Persie",new Group(2,"Manchester United")));
users.add(new User(9,"Torress",new Group(5,"Chelsea")));

return users;
}
@RemoteMethod
public void add(User user){

System.out.println(user);
}
@RemoteMethod
public void deleteUser(){
throw new MyException("删除用户！！");
}
@RemoteMethod
public int add(int a,int b){

return a+b;
}
}

package com.kxw.dwr.model;

public class User {

private int id;
private String username;
private Group group;

public User(int id, String username, Group group) {
super();
this.id = id;
this.username = username;
this.group = group;
}

public User() {
super();
}

public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public Group getGroup() {
return group;
}
public void setGroup(Group group) {
this.group = group;
}

@Override
public String toString() {
return "User [id=" + id + ", username=" + username + ", group=" + group
+ "]";
}

}

package com.kxw.dwr.model;

public class Group {

private int id;
private String name;

public Group(int id, String name) {
super();
this.id = id;
this.name = name;
}

public Group() {
super();
}

public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}

@Override
public String toString() {
return "Group [id=" + id + ", name=" + name + "]";
}

}

5.dwr.jsp:

<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
<script type="text/javascript" src="<%=request.getContextPath()%>/dwr/engine.js"></script>
<script type="text/javascript" src="<%=request.getContextPath()%>/dwr/util.js"></script>
<script type="text/javascript" src="<%=request.getContextPath()%>/dwr/interface/MyDwr.js"></script>
<script type="text/javascript">

MyDwr.list(listUser);
function listUser(users){

for(var i=0;i<users.length;i++){
alert(users[i].username+","+users[i].group.name);
}

}
</script>
</head>
<body>

</body>
</html>

6.运行项目run:jetty

在浏览器敲入：http://localhost:7878/springmvc_dwr/dwr.jsp



连续显示四个对话框

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

Ps:若出现此异常：

原文：http://10000001.blog.51cto.com/4600383/1340559

Spring整合Dwr,Cannot locate BeanDefinitionParser for element [annotation-scan]

原因是Maven下的dwr版本不适合，要去DWR官网http://directwebremoting.org/dwr/downloads/index.html#maven

下载jar包，把Maven仓库下面的dwr换为官网的，

这样就没问题了，自己感觉是Maven中心仓库里不支持吧。

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servlet与dwr的配置分开两个配置文件，否则老是失败