DWR+SpringMVC整合的3種方式之三

方式三：這種方式和方式二差不多，主要使用annotation配置和注解

說明：這種的耦合度也是和方式二差不多，本人最推薦用方式一，寫的清楚，配置也清楚。這種方式的時候也遇到了一個很無語的問題，我原來使用的是maven下載的dwr-3.0.M1.jar包，然后運行jetty沒錯，顯示jsp的時候就一直報下面這個錯誤：

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，網友說是dwr的包問題，mavne庫中下載的jar包有問題，從網上下載了一個jar'包，自己上傳到nexus的私有庫中，然后再修改了pom.xml中的dwr，當使用了自己下載的jar包后，運行jetty，一切正常。

如何使用自己的jar包，

一、可以使用maven的命令安裝jar包到maven的庫中，一定到該jar包的文件夾下執行如下命令，否則會提示沒有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的管理后臺，直接使用nexus的添加jar包到私有庫的功能。

選中一個宿主庫（hosted），然后點擊Artifact Upload一欄，在Artifact Upload下填寫jar的groupId、artifactId、version，然后從電腦上選擇要上傳的jar包，然后點擊Add Artifact按鈕，在點擊Upload Artifact(s)按鈕即可。

項目目錄結構：

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的依賴-->
        <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的依賴，原來maven下載的dwr的jar包有問題，這里使用自己上傳在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<目錄>覆蓋簽名的標準路徑的位置 -->
                        <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服務器-->
            <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>
                    <!-- 當執行mvn package時才會打包 -->
                    <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">

    <!-- 創建Spring的監聽器 -->
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
    <!-- Spring 的監聽器可以通過這個上下文參數來獲取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類

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");
    }

}

4、配置dwr

<?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過濾-->
        <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"/>
        
        <!--設置需要dwr轉化的實體類，格式為json傳輸到jsp頁面-->
	<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>

全部編輯完成之后，右鍵項目，選擇Run As... 繼續選擇7 Maven build...  ，在彈出框的Goals中輸入jetty:run ，然后點擊RUN運行。

打開瀏覽器，輸入http://localhost:8805/dwr-spring03/dwr03.jsp，就可以看到控制臺輸出了：load abc，jsp頁面彈出了abc

最后附上zip包，鏈接：http://download.csdn.net/detail/lxn39830435731415926/8714183

posted @ 2015-05-17 23:41 Java夜未眠閱讀(15) 評論(0) 收藏舉報

刷新頁面返回頂部

Java夜未眠

主要是Java常用關鍵技術點，通用工具類的分享；以及springboot springcloud Mybatisplus druid mysql redis swagger maven docker等集成框架的技術分享；datax、kafka、flink等大數據處理框架的技術分享。文章會不斷更新，歡迎碼友關注點贊收藏！

DWR+SpringMVC整合的3種方式之三

公告