struts2文件上传

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FileUpload.java:

package blog.action;import java.io.File;import java.io.IOException;import org.apache.commons.io.FileUtils;import org.apache.struts2.ServletActionContext;public class FileUpload {private File fileUpload;//得到上传的文件private String fileUploadContentType;//得到文件的类型private String fileUploadFileName;//得到文件的名称private String msg;public File getFileUpload() {return fileUpload;}public void setFileUpload(File fileUpload) {this.fileUpload = fileUpload;}public String getFileUploadContentType() {return fileUploadContentType;}public void setFileUploadContentType(String fileUploadContentType) {this.fileUploadContentType = fileUploadContentType;}public String getFileUploadFileName() {return fileUploadFileName;}public void setFileUploadFileName(String fileUploadFileName) {this.fileUploadFileName = fileUploadFileName;}public String getMsg() {return msg;}public String upload(){String realPath = ServletActionContext.getServletContext().getRealPath("/file");File file = new File(realPath);if (!file.exists()) {file.mkdirs();}try {FileUtils.copyFile(fileUpload, new File(file, fileUploadFileName));} catch (IOException e) {e.printStackTrace();}System.out.println("上传路径：" + realPath + "\t文件类型：" + fileUploadContentType);msg = "上传成功";return "message";}public String execute(){return "success";}}

fileUpload.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 'fileUpload.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">     </head>    <body>    <form action="${pageContext.request.contextPath }/control/file/operation_upload.action" enctype="multipart/form-data" method="post">    <input type="file" name="fileUpload" />    <input type="submit" value="上传"/>    </form>  </body></html>

struts-fileUpload.xml:

<?xml version="1.0" encoding="UTF-8" ?><!DOCTYPE struts PUBLIC    "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"    "http://struts.apache.org/dtds/struts-2.0.dtd"><struts><package name="file" extends="struts-default" namespace="/control/file"><action name="operation_*" class="blog.action.FileUpload" method="{1}" ><result name="message">/WEB-INF/page/message.jsp</result><result name="success">/WEB-INF/page/fileUpload.jsp</result></action></package></struts>

struts.xml:

<?xml version="1.0" encoding="UTF-8" ?><!DOCTYPE struts PUBLIC    "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"    "http://struts.apache.org/dtds/struts-2.0.dtd"><struts><constant name="struts.multipart.maxSize" value="30000000"></constant><!-- 上传文件的大小限制 --><include file="struts-fileUpload.xml"></include></struts>