Struts2文件上传，,文件上传使用的jar

Struts2文件上传，,文件上传使用的jar

文件上传使用的jar commons-fileupload-1.2.2.jar、commons-io-2.0.1.jar、

struts.xml 的配置

<?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.enable.DynamicMethodInvocation" value="false" />    <constant name="struts.devMode" value="false" />    <constant name="struts.action.extension" value="action,do" /> <constant name="struts.objectFactory" value="spring" /> <constant name="struts.custom.i18n.resources" value="mess"/> <constant name="struts.i18n.encoding" value="UTF-8"/> <constant name="struts.multipart.maxSize" value="20971520" />       <!-- 文件上传 --> <package name="upload" namespace="/upload" extends="struts-default">     <action name="imageUpload" class="uploadAction" method="execute">      <param name="allowTypes">       image/pjpeg,image/bmp,image/jpg,image/png,image/gif,image/jpeg,application/pdf,text/plain      </param>      <param name="savePath">/upload</param>         <result name="success">/WEB-INF/jsp/userlist.jsp</result>         <result name="input">/WEB-INF/jsp/userlist.jsp</result>     </action> </package>  </struts>

UploadAction的编写

package frameWork.dzdt.system.controller;

import java.io.File;import java.io.FileInputStream;import java.io.FileOutputStream;import java.text.SimpleDateFormat;import java.util.Date;import java.util.UUID;

import org.apache.struts2.ServletActionContext;import org.springframework.stereotype.Controller;

import com.opensymphony.xwork2.ActionContext;import com.opensymphony.xwork2.ActionSupport;

@Controller("uploadAction")public class UploadAction extends ActionSupport { //上传文件字段名 private File upload; //上传文件的内容类型 private String uploadContentType; //上传文件的名字 private String uploadFileName; //允许上传文件类型 类型格式可以参考tomcat下的web.xml下的配置 private String allowTypes; //上传文件的路径 private String savePath; public String execute() throws Exception { // TODO Auto-generated method stub String[] fileTypes = this.allowTypes.split(","); if(!filterType(fileTypes)){//判断上传文件类型 ActionContext.getContext().put("message", "文件类型错误"); return this.INPUT; } SimpleDateFormat sdf = new SimpleDateFormat("yyyy/MM/dd/HH"); //组装文件上传的目录为 /upload/2013/10/28/15 File fileSaveDir = new File(this.getSavePath()+"/"+sdf.format(new Date())); if(!fileSaveDir.exists()){//判断文件夹是否存在 fileSaveDir.mkdirs(); } String ext = uploadFileName.substring(uploadFileName.lastIndexOf("."));//获得文件上传的后缀名 String fileSaveName = UUID.randomUUID().toString()+ext;//使用uuid作为上传文件的名 FileOutputStream fos = new FileOutputStream(new File(fileSaveDir,fileSaveName)); FileInputStream fis = new FileInputStream(upload); byte[] buffer = new byte[1024]; int len = 0; while((len = fis.read(buffer))!=-1){//循环写入数据 fos.write(buffer, 0, len); } fos.flush(); fis.close(); fos.close(); ActionContext.getContext().put("message", "文件上传成功"); return this.SUCCESS; }

/* * 判断上传的文件类型是否允许 * @param types * @return / private boolean filterType(String[] types){ boolean isAllow = false; if(types == null){ return isAllow; } for(String type:types){//循环判断上传的内容类型是否和配置的文件类型相同 if(type.equals(uploadContentType)){ isAllow = true; break; } } return isAllow; } public File getUpload() { return upload; }

public String getUploadContentType() { return uploadContentType; }

public String getUploadFileName() { return uploadFileName; }

public String getAllowTypes() { return allowTypes; }

public String getSavePath() { //根据配置文件配置的savepath获得真实的路径 return ServletActionContext.getServletContext().getRealPath(this.savePath); }

public void setUpload(File upload) { this.upload = upload; }

public void setUploadContentType(String uploadContentType) { this.uploadContentType = uploadContentType; }

public void setUploadFileName(String uploadFileName) { this.uploadFileName = uploadFileName; }

public void setAllowTypes(String allowTypes) { this.allowTypes = allowTypes; }

public void setSavePath(String savePath) { this.savePath = savePath; }

}

上传jsp的简单编写

<%@ 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>upload 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="<%=path %>/upload/imageUpload.do" method="post" enctype="multipart/form-data"> <input type="file" name="upload"> <input type="submit" value="上传"> </form> </body></html>

显示结果页面的简单编写

<%@ 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 'userlist.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> uploadJSPpage.${message}<br> </body></html>