SpringMvc整合DWR做文件上传

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" version="2.5">

<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>

<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring-servlet.xml</param-value>
</context-param>

<servlet>
<servlet-name>spring</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring-servlet.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>spring</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>

<!-- dwr整合spring -->
<servlet>
<servlet-name>dwr-invoker</servlet-name>
<servlet-class>org.directwebremoting.spring.DwrSpringServlet</servlet-class>
<init-param>
<param-name>crossDomainSessionSecurity</param-name>
<param-value>false</param-value>
</init-param>
<init-param>
<param-name>allowScriptTagRemoting</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>
<init-param>
<param-name>activeReverseAjaxEnabled</param-name>
<param-value>true</param-value>
</init-param>
<init-param>
<param-name>initApplicationScopeCreatorsAtStartup</param-name>
<param-value>true</param-value>
</init-param>
<init-param>
<param-name>maxWaitAfterWrite</param-name>
<param-value>3000</param-value>
</init-param>
<!-- debug测试时设置为true -->
<init-param>
<param-name>debug</param-name>
<param-value>true</param-value>
</init-param>
<init-param>
<param-name>logLevel</param-name>
<param-value>WARN</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>dwr-
3ff0
invoker</servlet-name>
<url-pattern>/dwr/*</url-pattern>
</servlet-mapping>

</web-app>

spring-servlet.xml

<?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:p="http://www.springframework.org/schema/p"
xmlns:mvc="http://www.springframework.org/schema/mvc"
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-4.0.xsd">
<!--注解说明 -->
<context:annotation-config />

<!-- 设置使用注解的类所在的jar包 -->
<context:component-scan base-package="com.it.controller"/>
<context:component-scan base-package="com.it.service.Impl"/>

<!-- 对转向页面的路径解析。prefix：ji1缀， suffix：后缀 -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" p:prefix="/WEB-INF/jsp/" p:suffix=".jsp" />

<import resource="classpath:spring-DWR.xml"/>

</beans>

spring-DWR.xml

<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:dwr="http://www.directwebremoting.org/schema/spring-dwr"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsd http://www.directwebremoting.org/schema/spring-dwr http://www.directwebremoting.org/schema/spring-dwr-3.0.xsd">
<!-- 要求DWR在Spring容器中检查拥有@RemoteProxy 和 @RemoteMethod注解的类。注意它不会去检查Spring容器之外的类。 -->
<context:annotation-config />

<!-- 注意这里新增加的dwr tag, 为使其生效，文件头中要声明namespace -->
<dwr:configuration />

<dwr:annotation-config id="dwr" />

<!-- dwr配置文件的写法，也可以用注解 -->
<!--<dwr:proxy-ref bean="accountService" javascript="helloWorldUtil">
<dwr:include method="helloWorld"/>
</dwr:proxy-ref> -->

</beans>

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.it.test</groupId>
<artifactId>test</artifactId>
<packaging>war</packaging>
<version>1.0-SNAPSHOT</version>
<name>test Maven Webapp</name>
<url>http://maven.apache.org</url>
<dependencies>

<!-- 添加Spring-core包 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>4.2.2.RELEASE</version>
</dependency>
<!-- 添加spring-context包 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>4.2.2.RELEASE</version>
</dependency>
<!-- 添加spring-webmvc包 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>4.2.2.RELEASE</version>
</dependency>
<!-- 添加spring-aop包 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>4.2.2.RELEASE</version>
</dependency>
<!-- 添加spring-beans包 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>4.2.2.RELEASE</version>
</dependency>
<!-- 添加spring-tx包 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>4.2.2.RELEASE</version>
</dependency>
<!-- 添加spring-jdbc包 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>4.2.2.RELEASE</version>
</dependency>
<!-- 为了方便进行单元测试，添加spring-test包 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>4.2.2.RELEASE</version>
</dependency>
<!--添加spring-web包 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>4.2.2.RELEASE</version>
</dependency>
<!--添加aspectjweaver包 -->
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>1.8.7</version>
</dependency>
<!-- 添加mybatis的核心包 -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.3.0</version>
</dependency>
<!-- 添加mybatis与Spring整合的核心包 -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.2.3</version>
</dependency>
<!-- 添加servlet3.0核心包 -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
</dependency>
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>javax.servlet.jsp-api</artifactId>
<version>2.3.2-b02</version>
</dependency>
<!-- jstl -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<!-- 添加mysql驱动包 -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.37</version>
</dependency>
<!-- 添加druid连接池包 -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.0.16</version>
</dependency>

<!-- 日志 -->
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.14</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>1.7.0</version>
</dependency>

<!-- DWR -->
<dependency>
<groupId>org.directwebremoting</groupId>
<artifactId>dwr</artifactId>
<version>3.0.1-RELEASE</version>
</dependency>
<dependency>
<groupId>commons-fileupload</groupId>
<artifactId>commons-fileupload</artifactId>
<version>1.3.1</version>
</dependency>
<dependency>

3ff0
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>2.4</version>
</dependency>

</dependencies>
<build>
<finalName>test</finalName>
</build>
</project>

test.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>My JSP 'MyJsp.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">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
<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/helloWorldUtil.js"></script>

<script type="text/javascript">
function f() {
helloWorldUtil.helloWorld("小李", function (date) {
alert(date);
});
}
function file() {
var myfile = dwr.util.getValue("file");
helloWorldUtil.testFile( myfile,myfile.value, function (date) {
alert(date);
});
}
</script>
</head>

<body>
<input type="button" onclick="f()" value="测试异步">
<br/><br/><br/>
<input type="file" id="file" name="file">
<input type="button" onclick="file()" value="测试文件上传">

</body>
</html>

serviceImpl.java

package com.it.service.Impl;

import org.apache.commons.io.FileUtils;
import org.apache.commons.io.FilenameUtils;
import org.directwebremoting.WebContext;
import org.directwebremoting.WebContextFactory;
import org.directwebremoting.annotations.RemoteMethod;
import org.directwebremoting.annotations.RemoteProxy;
import org.springframework.stereotype.Service;

import com.it.service.TestService;

import javax.servlet.http.HttpServletRequest;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;

/**
* dwr注解
*
* @author Administrator
*
*/
@RemoteProxy(name = "helloWorldUtil")
@Service
public class TestServiceImpl implements TestService {

/**
* dwr注解
*/
@RemoteMethod
public String helloWorld(String name) {
name = name + "进入了Service";
return name;
}

@RemoteMethod
public String testFile(InputStream file, String name ) {

WebContext wc = WebContextFactory.get();
HttpServletRequest request = wc.getHttpServletRequest();

if(file != null){
String fileName = "demoUpload" + FilenameUtils.getName(name);;
fileName = fileName.replace("/",".");
fileName = fileName.replace("\\",".");
String path =request.getSession().getServletContext().getRealPath("");

File files =new File(path);
if (!files .exists() && !files .isDirectory()){
files.mkdirs();
}

File localFile = new File(path+fileName);

try {
FileUtils.copyInputStreamToFile(file, localFile);
} catch (IOException e1) {
e1.printStackTrace();
}
return path+fileName;
}
return null;
}
}

项目截图