struts1上传注意事项

1.
    <form action="<%=basePath%>priRing.do?method=upload" method="post" enctype="multipart/form-data">
    <table>
    <tr>
    <td><input type="file" name="formfile"/></td>//1
    </tr>
       <tr>
    <td><input type="submit"/></td>
    </tr>   
    </table>
    form中
private FormFile formfile;//2
1和2两处的名字必须一样

2.
String name=ff.getFileName();
System.out.println("name="+name);
InputStream is=ff.getInputStream();
FileOutputStream fos=new FileOutputStream(path+"/"+ff.getFileName());//3
3处的路径必须加文件的名字

代码如下：

package com.buybal.mgr.struts.action.pictureAndRing;

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Enumeration;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;
import java.util.zip.ZipInputStream;

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

import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.actions.DispatchAction;
import org.apache.struts.upload.FormFile;
import org.directwebremoting.util.Logger;

import com.buybal.mgr.struts.form.PictureAndRingForm;
import com.jrt.mgr.Global;
import com.jrt.mgr.bean.PictureAndRing;

public class PictureAndRingAction extends DispatchAction {
    private static final Logger logger=Logger.getLogger(PictureAndRingAction.class);
	public ActionForward pictureUpload(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {
		PictureAndRingForm fileForm=(PictureAndRingForm)form;
		try{
			//将文件进行上传
			response.setCharacterEncoding("utf-8");
			FormFile ff=fileForm.getFile();
			if(ff.getFileSize()<0||ff.getFileName().equals("")){
				logger.info("上传的文件不存在");
				return null;
			}			
			String path="D:\\upload";//路径可以通过配置文件获得
			File file=new File(path);
			if(!file.exists()){//如果文件不存在则建立该目录
				file.mkdirs();
			}
			InputStream is=ff.getInputStream();		
			OutputStream bos = new FileOutputStream(path+"\\"+ff.getFileName());//此处的路径是：path+文件名
		    int bytesRead = 0;
	        byte buffer[] = new byte[ff.getFileSize()];
	        while ((bytesRead = is.read(buffer, 0, ff.getFileSize())) != -1)  {
	        bos.write(buffer, 0, bytesRead);             
	        }
	        bos.close();       
	        is.close();   
	        //以下方法是将Zip文件进行解压
	        int type=fileForm.getType();//上传内容，0图片，1是铃声
	        int contenttype=fileForm.getContenttype();//上传内容
			unzip(path,type,contenttype);
	       System.out.println("dd");
		}catch(Exception e){
			e.printStackTrace();
			logger.error("上传文件失败，失败原因是："+e.toString());
		}
		
		
		return null;
	}
	
		/*解压文件
	 * **/
	public synchronized void unzip(String path,int type,int contenttype) throws Exception{
		 File fff=new File(path);
	       File[] f=fff.listFiles();
	       for(int i=0;i<f.length;i++){
	    	   File fs=f[i];
	    	   System.out.println(fs.getName());
	    	   if(fs.getName().indexOf(".zip")>-1){
	    		   ZipFile zip=new ZipFile(fs);
	    		   path=path+"\\"+fs.getName().substring(0, fs.getName().indexOf(".zip"));
	    		   Enumeration e = zip.entries();
	    		   ZipInputStream iss=new ZipInputStream(new FileInputStream(fs));
	    		   while(e.hasMoreElements()){
	    			   ZipEntry zipEnt = (ZipEntry) e.nextElement();
	    			   if(zipEnt.isDirectory()){
	    				   continue;//如果是根目录则跳出
	    			   }
	    			   String name= (new String(zipEnt.getName().getBytes("ISO-8859-1"),"UTF-8")).trim();
	    			   File ff=new File(path);
	    			   if(!ff.exists()){
	    				   ff.mkdirs();
	    			   }
	    			   if(name.indexOf("/")>-1){//文件包含子目录时
	    				   name=name.substring(name.indexOf("/")+1,name.length());
	    			   }
	    			   if(name.indexOf("\\")>-1){//包含子目录时
	    				   name=name.substring(name.indexOf("\\")+1,name.length());
	    			   }
	    			  // InputStream iss = zip.getInputStream(zipEnt);  	                 
	                   OutputStream os = new FileOutputStream(path+"\\"+name); //循环中不能用BufferedInputStream，会报stream Close错误
	                   int bytesRead = 0;
	       	             byte buffer[] = new byte[8192];
	       	          while ((bytesRead = iss.read(buffer, 0, 8192)) != -1) {
	       	              os.write(buffer, 0, bytesRead);
	       	          }  
	                  
	                    os.close();   
	                    //将上传的图片存入数据库
	                    String fpath=path+"\\"+name;
	                    List<PictureAndRing> list=Global.parDAO.getPictureAndRing(type, contenttype, fpath);
	                    if(list==null||list.isEmpty())//检查数据库中是否有改图片
	                    Global.parDAO.addPictureAndRing(name,type,contenttype,fpath);
	    		   }
	    		   iss.close();
	    	   }
	       }
	}
}