struts+hibernate实现多个文件上传

首先是ActionForm代码:

import java.util.ArrayList;
import java.util.List;

import org.apache.struts.action.ActionForm;
import org.apache.struts.upload.FormFile;

public class UploadManyForm extends ActionForm {
private static final long serialVersionUID = -4609151398021079963L;
private List<FormFile> myfile=new ArrayList<FormFile>();

public FormFile getMyfile(int index) {
return myfile.get(index);
}

public void setMyfile(int index, FormFile formFile) {
this.myfile.add(formFile);
}

public List<FormFile> getFiles(){
return myfile;
}
}

其次是Action中代码：

import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.List;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.upload.FormFile;

import com.wubangjie.movie.util.Constant;
import com.wubangjie.movie.web.form.UploadManyForm;

public class UploadManyAction extends Action {

@Override
public ActionForward execute(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response)
throws Exception {

  UploadManyForm uploadManyForm = (UploadManyForm) form;
  List<FormFile> files = uploadManyForm.getFiles();
  String root = this.getServlet().getServletContext().getRealPath("\\");
  List<String> fileNames=new ArrayList<String>();
  for (FormFile formFile : files) {
    //得到文件名
   String filename=Constant.UPLOAD_PATH+"\\"+formFile.getFileName();
   fileNames.add(filename);
   write(formFile, root);
  }
  request.setAttribute("path", fileNames);
  request.setAttribute("fileName", fileNames);
  return null;
}

/**
* 按照给定的路径写入指定的文件
*
* @param file
*            需要写入的文件
* @param path
*            写入的路径
* @throws IOException
*             如果写入出错，则抛出此异常
*/
public void write(FormFile file, String path) throws IOException {
  if (file.getFileSize() == 0) {
   return;
  }
  InputStream stream = file.getInputStream();
  OutputStream bos = new FileOutputStream(path + "\\"
    + Constant.UPLOAD_PATH + "\\" + file.getFileName());
  int bytesRead = 0;
  byte[] buffer = new byte[8192];
  while ((bytesRead = stream.read(buffer, 0, 8192)) != -1) {
   bos.write(buffer, 0, bytesRead);
  }
  bos.close();
  stream.close();
}

}

在JSP代码：

<%@ page language="java" pageEncoding="UTF-8"%>

<%@ taglib uri="http://struts.apache.org/tags-bean" prefix="bean"%>
<%@ taglib uri="http://struts.apache.org/tags-html" prefix="html"%>
<%@ taglib uri="http://struts.apache.org/tags-logic" prefix="logic"%>
<%@ taglib uri="http://struts.apache.org/tags-tiles" prefix="tiles"%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html:html lang="true">
<head>
<html:base />

<title>上传多个文件</title>

</head>

<body>
<div align="center">
  上传多个文件
</div>
<center>
  <html:form action="fileUpload.do" method="post"
   enctype="multipart/form-data" onsubmit="return check()">
   <span id="upload"></span>
   <input type="button" name="button" value="添加附件" onclick="addInput()">  
            <input type="button" name="button" value="删除附件"
    onclick="deleteInput()">
   <br>
   <font color=red>上传文件总大小不能超过15M</font>
   <br>
   <html:submit value="确定上传" />
   <html:cancel />
  </html:form>
</center>

</body>
</html:html>

祝你成功！

posted on 2008-11-20 19:41 吴邦杰阅读(875) 评论(0) 收藏举报