Struts2上传文件示例

  Struts2上传文件示例

源代码： Struts2Upload.rar

１.包如下：请自行下载


２.Action类

package  com.sterning;

import  java.io.File;

import  javax.servlet.ServletContext;

import  org.apache.commons.io.FileUtils;
import  org.apache.struts2.util.ServletContextAware;

import  com.opensymphony.xwork2.ActionSupport;

public   class  StrutsFileUpload  extends  ActionSupport  implements
        ServletContextAware  {

    private File upload;// 实际上传文件

    private String uploadContentType; // 文件的内容类型

    private String uploadFileName; // 上传文件名

    private String fileCaption;// 上传文件时的备注

    private ServletContext context;

    public String execute() throws Exception {

        try {
            
            String targetDirectory = context.getRealPath("/upload");
            String targetFileName = uploadFileName;
            File target = new File(targetDirectory, targetFileName);
            FileUtils.copyFile(upload, target);            
            
            setUploadFileName(target.getPath());//保存文件的存放路径
        } catch (Exception e) {

            addActionError(e.getMessage());

            return INPUT;
        }

        return SUCCESS;

    }

    public String getFileCaption() {
        return fileCaption;
    }

    public void setFileCaption(String fileCaption) {
        this.fileCaption = fileCaption;
    }

    public File getUpload() {
        return upload;
    }

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

    public String getUploadContentType() {
        return uploadContentType;
    }

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

    public String getUploadFileName() {
        return uploadFileName;
    }

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

    public void setServletContext(ServletContext context) {
        this.context = context;
    }

}

３.页面

上传页面：upload.jsp

<% @ page language="java" contentType="text/html; charset=GB2312" %>    
<% @ taglib prefix="s" uri="/struts-tags"  %>    
< html >
     < head >
         < title > 文件上传示例 title >
         < link  href =" /css/main.css" /> " rel="stylesheet"
            type="text/css" />

     head >

     < body >

         < s:actionerror  />
         < s:fielderror  />
         < s:form  action ="doUpload"  method ="POST"  enctype ="multipart/form-data" >
             < tr >
                 < td  colspan ="2" >
                     < h1 >
                        文件上传示例
                     h1 >
                 td >
             tr >

             < s:file  name ="upload"  label ="上传的文件"   />
             < s:textfield  name ="fileCaption"  label ="备注"   />
             < s:submit  value ="上   传" />
         s:form >
     body >
html >

上传成功页面：upload_success.jsp

<% @ page language="java" contentType="text/html; charset=GB2312" %>   
<% @ taglib prefix="s" uri="/struts-tags" %>
< html >
     < head >
         < title > 上传成功 title >
         < link  href =" /css/main.css" /> " rel="stylesheet"
            type="text/css" />
     head >

     < body >
         < table  class ="wwFormTable" >
             < tr >

                 < td  colspan ="2" >
                     < h1 >
                        上传成功
                     h1 >
                 td >
             tr >

             < tr >
                 < td  class ="tdLabel" >
                     < label  for ="doUpload_upload"  class ="label" >
                        内容类型:
                     label >
                 td >
                 < td >
                     < s:property  value ="uploadContentType"   />
                 td >
             tr >

             < tr >
                 < td  class ="tdLabel" >
                     < label  for ="doUpload_upload"  class ="label" >
                        文件路径:
                     label >
                 td >
                 < td >
                     < s:property  value ="uploadFileName"   />
                 td >
             tr >


             < tr >
                 < td  class ="tdLabel" >
                     < label  for ="doUpload_upload"  class ="label" >
                        临时文件:
                     label >
                 td >
                 < td >
                     < s:property  value ="upload"   />
                 td >
             tr >

             < tr >
                 < td  class ="tdLabel" >
                     < label  for ="doUpload_upload"  class ="label" >
                        备注:
                     label >
                 td >
                 < td >
                     < s:property  value ="fileCaption"   />
                 td >
             tr >


         table >

     body >
html >

４.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.devMode"  value ="true"   />
     < constant  name ="struts.i18n.encoding"  value ="GB2312"   />
 
     < package  name ="NG"  namespace ="/"  extends ="struts-default" >
         < action  name ="showUpload" >
             < result > /upload.jsp result >
         action >
        
         < action  name ="doUpload"  class ="com.sterning.StrutsFileUpload" >
             < result  name ="input" > /upload.jsp result >
             < result > /upload_success.jsp result >
         action >
     package >

struts >

５.web.xml

xml version="1.0" encoding="UTF-8" ?>
< web-app  id ="WebApp_ID"  version ="2.4"
    xmlns ="http://java.sun.com/xml/ns/j2ee"
    xmlns:xsi ="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation ="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd" >

     < display-name > customization display-name >

     < filter >
         < filter-name > struts-cleanup filter-name >
         < filter-class >
            org.apache.struts2.dispatcher.ActionContextCleanUp
         filter-class >
     filter >   


     < filter >
         < filter-name > struts2 filter-name >
         < filter-class >
            org.apache.struts2.dispatcher.FilterDispatcher
         filter-class >
     filter >


     < filter-mapping >
         < filter-name > struts-cleanup filter-name >
         < url-pattern > /* url-pattern >
     filter-mapping >  


     < filter-mapping >
         < filter-name > struts2 filter-name >
         < url-pattern > /* url-pattern >
     filter-mapping >

web-app >