Struts2批量上传文件

Struts2文件上传

最新推荐文章于 2020-03-21 16:33:24 发布

最新推荐文章于 2020-03-21 16:33:24 发布 · 133 阅读

文章标签：

#Java #Struts #OS #JSP #Tomcat

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struts.xml

<interceptors>
        <interceptor-stack name="fileUploadStack">
   <interceptor-ref name="fileUpload">
       <param name="maximumSize">409600</param>
    <param name="allowedTypes">image/pjpeg,image/bmp,image/jpg,image/png,image/gif,image/jpeg</param>
   </interceptor-ref>
   <interceptor-ref name="basicStack"/>
  </interceptor-stack>
      </interceptors>

       <default-interceptor-ref name="fileUploadStack"></default-interceptor-ref>
       <action name="upload" class="com.gdf.struts2.action.UploadAction">
   <result name="success">/test/uploadResult.jsp</result>
   <result name="input">/test/upload.jsp</result>
    <interceptor-ref name="fileUploadStack"></interceptor-ref>
  </action>

UploadAction.java

package com.gdf.struts2.action;

import java.io.File;
import java.util.ArrayList;
import java.util.List;

import javax.servlet.http.HttpServletRequest;

import org.apache.struts2.ServletActionContext;

import com.gdf.util.Upload;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;

public class UploadAction extends ActionSupport
{
private String username;

private String password;

private List<File> file;

private List<String> fileFileName;

private List<String> fileContentType;

public String getUsername()
{
return username;
}

public void setUsername(String username)
{
this.username = username;
}

public String getPassword()
{
return password;
}

public void setPassword(String password)
{
this.password = password;
}

public List<File> getFile()
{
return file;
}

public void setFile(List<File> file)
{
this.file = file;
}

public List<String> getFileFileName()
{
return fileFileName;
}

public void setFileFileName(List<String> fileFileName)
{
this.fileFileName = fileFileName;
}

public List<String> getFileContentType()
{
return fileContentType;
}

public void setFileContentType(List<String> fileContentType)
{
this.fileContentType = fileContentType;
}

@Override
public String execute() throws Exception
{

  Upload upload=new Upload();
  //ActionContext ctx = ActionContext.getContext();
  //HttpServletRequest request = (HttpServletRequest) ctx.get(ServletActionContext.HTTP_REQUEST);
  //System.out.println(com.gdf.util.SessionManager.getUser(request).getId());
  ArrayList list=upload.upload(file, this.getFileFileName(),"/files/");
  if (list.size()>0){
   return INPUT;
  }else{
    return SUCCESS;
  }
}

}

Upload.java

package com.gdf.util;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;

import org.apache.struts2.ServletActionContext;

public class Upload {
@SuppressWarnings("unchecked")
/**
   * @file:文件域列表
   * @fileName:上传文件的文件名
   * @path:文件上传的目录，相对目录。
   * 说明：文件上传所存放目录的规则：网站根目录下 files/会员ID/网站类型名称/上传文件分类名称/
   * @返回结果：一个存放上传文件所在位置相对路径的ArrayList
   * */
public ArrayList upload(List file,List fileName,String path) throws IOException{
   String root = ServletActionContext.getRequest().getRealPath(path);
   File dir=new File(root);
   if (dir.exists()==false){
    dir.mkdirs();
   }
   ArrayList list=new ArrayList();
   for (int i = 0; i < file.size(); ++i)
  {
   InputStream is = new FileInputStream(file.get(i).toString());
   SimpleDateFormat sdf=new SimpleDateFormat("yyyyMMddHHmmss");//格式化时间输出
   String Rname=sdf.format(new Date());//取得当前时间，Date()是java.util包里的，这作为真实名称
   String name=fileName.get(i).toString();//得到上传文件的原名称
   name=Rname+name;//重命名文件名称,命名规则为：时间+原文件名称
   File destFile = new File(root, name);

OutputStream os = new FileOutputStream(destFile);

byte[] buffer = new byte[400];

int length = 0;

   while ((length = is.read(buffer)) > 0)
   {
    os.write(buffer, 0, length);
   }
   list.add(path+name);
   is.close();

   os.close();
  }
   return list;
}
}

upload.jsp

<%@ page language="java" contentType="text/html; charset=utf-8"
    pageEncoding="utf-8"%>

<%@ taglib prefix="s" uri="/struts-tags" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Struts2批量上传文件</title>
<script src="/js/check_upload_file.js"></script>
<script src="/js/validate.js"></script>
<script type="text/javascript">