用Struts实现多文件上传(文件个数不定可动态增减)

upload.jsp是这样子的>>>

<html:form action="/upload" enctype="multipart/form-data">    

<html:text property="title"/><br>         

<input type="file" name="testFile(0)"/><br>    (可在此增加上传个数)  

<input type="file" name="testFile(1)"/><br>           

<html:submit value="upload"/>

</html:form>

 

UploadForm.java  

import java.util.ArrayList;

import org.apache.struts.action.ActionForm;

import org.apache.struts.upload.FormFile;

public class UploadForm extends ActionForm { 

private String title;  

private ArrayList formFiles = new ArrayList();  

public String getTitle() {   return title; }  

public void setTitle(String title) {    this.title = title; }  

public void setTestFile(String iIndex, FormFile formFile) {   this.formFiles.add(formFile); }  

public FormFile getTestFile(String iIndex) {   return (FormFile) formFiles.get(Integer.parseInt(iIndex)); }  

public ArrayList getTestFiles() {   return this.formFiles; }

}  

 

UploadAtionAction.java  

 

import java.io.FileOutputStream;

import java.io.InputStream;import java.io.OutputStream;

import java.util.ArrayList;

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.yourcompany.struts.form.UploadForm;

public ActionForward execute(  ActionMapping mapping,  ActionForm form,  HttpServletRequest request,  HttpServletResponse response) { 

 String name=null;  

String path = null;  

FormFile file;  

ArrayList list= new ArrayList();  

UploadForm uploadForm = (UploadForm) form;  list = uploadForm.getTestFiles(); 

// FormFile file= uploadForm.getTestFile("0"); 

// name = file.getFileName();     

path=servlet.getServletContext().getRealPath("/upload");     //  

String realPath=path+"/"+fname;  

try{   

for(int j=0; j < list.size();j++){    

file= uploadForm.getTestFile(String.valueOf(j));     

name = file.getFileName();    

if(name != null && !"".equals(name)){     

InputStream streamin=file.getInputStream();     

OutputStream streamout=new FileOutputStream(path+"/"+name);     

byte[] buff=new byte[8192];    

 int i=0;     

while((i=streamin.read(buff,0,8192))>0){      

streamout.write(buff, 0, i);     

}          

streamin.close();     

streamout.flush();     

streamout.close();     

file.destroy();    }   }  

}catch(Exception e){   

e.printStackTrace();     

}  return null; }

}  

至于怎么动态增加或删除上传文件个数，这里就不详讲了，ＣＳＤＮ的博客怎么东西一贴上去，格式就全不见了，所有文字都缩在一起了，好辛苦啊还得手动排版．忍不住，对着屏幕伸出了邪恶的中指．．．