DWR+SpringMVC整合的3种方式之三
Beginning
方式三：这种方式和方式二差不多，主要使用annotation配置和注解
说明：这种的耦合度也是和方式二差不多，本人最推荐用方式一，写的清楚，配置也清楚。这种方式的时候也遇到了一个很无语的问题，我原来使用的是maven下载的dwr-3.0.M1.jar包，然后运行jetty没错，显示jsp的时候就一直报下面这个错误：
org.springframework.beans.factory.parsing.BeanDefinitionParsingException: Configuration problem: Cannot locate BeanDefinitionParser for element [annotation-scan]|Offending resource: ServletContext resource [/WEB-INF/dispatcher-servlet.xml]
然后自己也搞了很久，最后百度，网友说是dwr的包问题，mavne库中下载的jar包有问题，从网上下载了一个jar'包，自己上传到nexus的私有库中，然后再修改了pom.xml中的dwr，当使用了自己下载的jar包后，运行jetty，一切正常。
如何使用自己的jar包，
一、可以使用maven的命令安装jar包到maven的库中，一定到该jar包的文件夹下执行如下命令，否则会提示没有pom文件。如:
mvn install:install-file -DgroupId=com.oracle -DartifactId=ojdbc14 -Dversion=10.2.0.4.0 -Dpackaging=jar -Dfile=F:/JAR Pack/ojdbc14.jar
二、到nexus的管理后台，直接使用nexus的添加jar包到私有库的功能。
选中一个宿主库（hosted），然后点击Artifact Upload一栏，在Artifact Upload下填写jar的groupId、artifactId、version，然后从电脑上选择要上传的jar包，然后点击Add Artifact按钮，在点击Upload Artifact(s)按钮即可。
项目目录结构：
一、pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<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/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.lessony</groupId>
<artifactId>dwr-spring03</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>war</packaging>
<name>dwr-spring03</name>
<properties>
<endorsed.dir>${project.build.directory}/endorsed</endorsed.dir>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<spring.version>3.2.2.RELEASE</spring.version>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.10</version>
<scope>test</scope>
</dependency>
<!--spring的依赖-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<!--dwr的依赖，原来maven下载的dwr的jar包有问题，这里使用自己上传在nexus中的jar包-->
<dependency>
<groupId>org.directwebremoting</groupId>
<artifactId>dwr</artifactId>
<version>3.0.M1</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.1</version>
<configuration>
<source>1.7</source>
<target>1.7</target>
<compilerArguments>
<!-- endorseddirs<目录>覆盖签名的标准路径的位置 -->
<endorseddirs>${endorsed.dir}</endorseddirs>
</compilerArguments>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>2.3</version>
<configuration>
<failOnMissingWebXml>false</failOnMissingWebXml>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<version>2.6</version>
<executions>
<execution>
<phase>validate</phase>
<goals>
<goal>copy</goal>
</goals>
<configuration>
<outputDirectory>${endorsed.dir}</outputDirectory>
<silent>true</silent>
<artifactItems>
<artifactItem>
<groupId>javax</groupId>
<artifactId>javaee-endorsed-api</artifactId>
<version>7.0</version>
<type>jar</type>
</artifactItem>
</artifactItems>
</configuration>
</execution>
</executions>
</plugin>
<!--jetty服务器-->
<plugin>
<groupId>org.mortbay.jetty</groupId>
<artifactId>jetty-maven-plugin</artifactId>
<version>8.1.16.v20140903</version>
<configuration>
<scanIntervalSeconds>10</scanIntervalSeconds>
<webApp>
<contextPath>/dwr-spring03</contextPath>
</webApp>
<connectors>
<connector implementation="org.eclipse.jetty.server.nio.SelectChannelConnector">
<port>8805</port>
<maxIdleTime>60000</maxIdleTime>
</connector>
</connectors>
</configuration>
</plugin>
<!--打包插件，把web打成zip包-->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-assembly-plugin</artifactId>
<version>2.4</version>
<configuration>
<descriptors>
<descriptor>assembly.xml</descriptor>
</descriptors>
</configuration>
<executions>
<!-- 当执行mvn package时才会打包 -->
<execution>
<id>make-assembly</id>
<phase>package</phase>
<goals>
<goal>single</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
二、web.xml<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.0" 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_3_0.xsd">
<!-- 创建Spring的监听器 -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- Spring 的监听器可以通过这个上下文参数来获取beans.xml的位置 -->
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath*:beans.xml</param-value>
</init-param>
<servlet>
<servlet-name>dispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/dispatcher-servlet.xml</param-value>
</context-param>
</servlet>
<servlet-mapping>
<servlet-name>dispatcher</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<filter>
<filter-name>characterFilter</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>characterFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<servlet-mapping>
<servlet-name>dispatcher</servlet-name>
<url-pattern>/dwr/*</url-pattern>
</servlet-mapping>
</web-app>
3、java类package com.lessony.dwr.spring03.entity;
public class User {
private int id;
private String name;
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;
}
public User() {
}
public User(int id, String name) {
super();
this.id = id;
this.name = name;
}
}
package com.lessony.dwr.spring03.service;
import com.lessony.dwr.spring03.entity.User;
public interface IHelloService {
public String sayHello(String name);
public User load();
}
package com.lessony.dwr.spring03.service.impl;
import com.lessony.dwr.spring03.entity.User;
import com.lessony.dwr.spring03.service.IHelloService;
import org.directwebremoting.annotations.RemoteMethod;
import org.directwebremoting.annotations.RemoteProxy;
@RemoteProxy(name="helloService")
public class HelloService implements IHelloService {
@Override
@RemoteMethod
public String sayHello(String name) {
System.out.println("hello " + name);
return "hello: "+name;
}
@Override
@RemoteMethod
public User load() {
System.out.println("load abc");
return new User(1,"abc");
}
}
<?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:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:dwr="http://www.directwebremoting.org/schema/spring-dwr"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.2.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd
http://www.directwebremoting.org/schema/spring-dwr
http://www.directwebremoting.org/schema/spring-dwr-3.0.xsd">
<mvc:annotation-driven/>
<mvc:resources location="/resources/" mapping="/resources/**"/>
<!--dwr过滤-->
<bean class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
<property value="true" name="alwaysUseFullPath"></property>
<property name="mappings">
<props>
<prop key="/dwr/**/*">dwrController</prop>
</props>
</property>
</bean>
<!--dwr控制器-->
<dwr:controller id="dwrController" debug="true"/>
<!--设置需要dwr转化的实体类，格式为json传输到jsp页面-->
<dwr:configuration>
<dwr:convert type="bean" class="com.lessony.dwr.spring03.entity.User"/>
</dwr:configuration>
<dwr:annotation-config id="dwrAnnotationConfig" />
<dwr:annotation-scan base-package="com.lessony.dwr.spring03.service.impl" scanDataTransferObject="true"/>
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/jsp/"/>
<property name="suffix" value=".jsp"/>
</bean>
</beans>
5jsp文件
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>JSP Page</title>
<script src="<%=request.getContextPath()%>/dwr/engine.js"></script>
<script src="<%=request.getContextPath()%>/dwr/interface/helloService.js"></script>
<script>
helloService.load(function(data){
alert(data.name);
});
</script>
</head>
<body>
<h1>Hello World!</h1>
</body>
</html>
全部编辑完成之后，右键项目，选择Run As... 继续选择7 Maven build... ，在弹出框的Goals中输入jetty:run ，然后点击RUN运行。打开浏览器，输入http://localhost:8805/dwr-spring03/dwr03.jsp，就可以看到控制台输出了：load abc，jsp页面弹出了abc
最后附上zip包，链接：http://download.csdn.net/detail/lxn39830435731415926/8714183
Ending
本文如果对您有帮助欢迎打赏作者，多少随意一分也是爱！
作者：Java夜未眠
出处：https://www.cnblogs.com/liangxianning/p/17058274.html
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