struts 1.xマルチファイルアップロードを実現します.1.0(メモ)

               ，    ，                  。

1.    ：

 
   var t = 1; 
   function addFileInput() 
   { 
    var parent = document.getElementById("more"); 

    var br = document.createElement("br"); 
    var input = document.createElement("input"); 
    var button = document.createElement("input"); 

    input.type = "file"; 
    input.name = "uploadFile[" + (t++) + "].file"; 
    input.size = "30"; 
    button.type = "button"; 
    button.value = "  "; 

    button.onclick = function() 
    { 
     parent.removeChild(br); 
     parent.removeChild(input); 
     parent.removeChild(button); 
    
    }; 

    parent.appendChild(br); 
    parent.appendChild(input); 
    parent.appendChild(button); 
   } 
 




				
				
			

	/**
	 *       1.0
	 */
	public ActionForward addFile(ActionMapping mapping, ActionForm form, 
			HttpServletRequest request, HttpServletResponse response){
		FileForm fileForm = (FileForm)form;
		List uploadFiles =  fileForm.getFormFiles();
		// result = 0;
		if(uploadFiles != null){
			String root=request.getSession(true).getServletContext().getRealPath("/heyjdemo/upfiles/"); 
			FileUploadTool fileUploadTool = new FileUploadTool();
			fileUploadTool.saveFile(uploadFiles, root);
			
			/*
			 *          
			 */
			
		}
		

		return mapping.findForward("success"); 
	}

import java.io.FileOutputStream;
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.struts.upload.FormFile;

/**
 * 
   :         ，            upifles   ，        
 * 				      ,     2011-3          ：/upfiles/2010_3/
 * 
 *
 * 
   ：
 * 
 *  	        ，         ：
 *              ，             ，  uploadFile        ，      ：
 *      			

				

				
 *  
 *
 * 
   ：	1.   ，    ，    ，    ，        (       )
 *    			2.        
 *    			3.    ( )      *************************
 * 				4.      ，      ***********************
 * 			
 *  
 *
 * 
 Create Date：2011-3-14 
 * 
 */
public class FileUploadTool {
	
	/**
	 *              
	 */
	private String fname = "";
	private String furl = "";
	private String ftype = "";
	private float fsize = 0;
	
	/**
	 *               
	 */
	private List fnames;
	private List furls;
	private List ftypes;
	private List fsizes;
	
	public String getFname() {
		return fname;
	}
	public String getFurl() {
		return furl;
	}
	public String getFtype() {
		return ftype;
	}
	public float getFsize() {
		return fsize;
	}
	public List getFnames() {
		return fnames;
	}
	public List getFurls() {
		return furls;
	}
	public List getFtypes() {
		return ftypes;
	}
	public List getFsizes() {
		return fsizes;
	}

	/**
	 *           
	 *     +   
	 * @return
	 */
	public String getUniqueString(){
		Date date = new Date();
		SimpleDateFormat   simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
		String currrentDateStr = simpleDateFormat.format(date);
		int  randInt = (int)( Math.random()*10000);
		String uniqueStr = (currrentDateStr + randInt).replaceAll(" ", "")
			.replaceAll(":", "").replaceAll("-", "");
		return uniqueStr;
	}
	
	/**
	 *       ，
	 *      1 ，      ，    0 ，     
	 * @param file
	 * @param preFurl
	 * @param preFname
	 * @return
	 */
	public int saveFile(FormFile file, String root, String preFname){
		
			//    
			try{
				fsize = file.getFileSize();
				/**
				 *       0       
				 */
				if(0 == fsize){
					return 0;
				}
				String[] tempStr = preFname.split("\\.");
				if(tempStr.length>0){
					ftype = tempStr[tempStr.length - 1 ];
				}
				fname = getUniqueString();
				furl = root + "\\" + fname;
				if(!"".equals(ftype)){
					furl += "." + ftype;
				}
				
				InputStream in = file.getInputStream();
				System.out.println(furl);
		        OutputStream out = new FileOutputStream(furl);  
		        int read = 0;  
		        //fsize = 0;
		        byte[] buffer = new byte[1024];  
		        while((read = in.read(buffer,0,1024)) != -1){  		   
		            out.write(buffer, 0, read);
		           // fsize += read;
		        }  
		        in.close();  
		        out.close();
			}catch(Exception e){
				e.printStackTrace();
				return 0;
			}
			
			///fsize /= 1024;//   kb
			
			return 1;
	}
	
	/**
	 *       
	 *                      
	 * @param files
	 * @param url
	 */
	public void saveFile(List files, String root){
		/*
		 *    
		 */
		fnames = new ArrayList();
		furls = new ArrayList();
		ftypes = new ArrayList();
		fsizes = new ArrayList();
		
		/*
		 *     
		 */
		for(UploadFile file : files){
			FormFile formFile = file.getFile();
			if(formFile == null){
				continue;
			}
			saveFile(formFile,root,formFile.getFileName());
			fnames.add(fname);
			furls.add(furl);
			ftypes.add(ftype);
			fsizes.add(fsize);
		}
	}
	/**
	 *       
	 * @param furl
	 */
	public boolean deleteFile(String furl){
		java.io.File file = new java.io.File(furl);
		if(file.exists()){
			file.delete();
			return true;
		}else{
			return false;
		}
	}
	
	/**
	 *       
	 * @param furls
	 */
	public List deleteFile(List furls){
	
		List results = new ArrayList();
		for(String furl : furls){
			results.add(deleteFile(furl));
		}
		return results;
	}
	
	public void cleanRubbishFiles(){
		
	}
}

/**
 * 
   :    DAO
 *
 * 
   ：
 *    	        ，         ：
 *              ，             ，  uploadFile        ，      ：
 *      		

				

				
 *  
 *
 * 
   ： 
 *
 * 
 Create Date：2011-3-14 
 * 
 */
public class FileForm extends ActionForm {
	
	private File file = new File();

	private List files;
	
	private Page page = new Page(1,3);
	
	/**
	 * Struts     
	 */
	private FormFile formFile;
	
	/**
	 *     
	 * @return
	 */
	private List formFiles = new ArrayList();
	
	public File getFile() {
		return file;
	}

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

	public List getFiles() {
		return files;
	}

	public void setFiles(List files) {
		this.files = files;
	}

	public Page getPage() {
		return page;
	}

	public void setPage(Page page) {
		this.page = page;
	}

	public FormFile getFormFile() {
		return formFile;
	}

	public void setFormFile(FormFile formFile) {
		this.formFile = formFile;
	}

	public List getFormFiles() {
		return formFiles;
	}

	public void setFormFiles(List formFiles) {
		this.formFiles = formFiles;
	}

	public FileForm(){
		
	}
	
	/**
	 *                       ,
	 * struts1      ，    ----》list   ，       
	 * @param index
	 * @return
	 */

	public UploadFile getUploadFile(int index) { 
	   int size = formFiles.size(); 
	   if (index > size - 1) { 
	    for (int i = 0; i < index - size + 1; i++) { 
	    	formFiles.add(new UploadFile()); 
	    } 
	   } 
	   return (UploadFile) formFiles.get(index); 
	} 


	
}

import java.io.Serializable;

import org.apache.struts.upload.FormFile;

/**
 * 
   : struts1      formfile 
 *
 * 
   ： 
 *
 * 
   ： 
 *
 * 
 Create Date：2011-3-15 
 * 
  */
public class UploadFile implements Serializable { 

	private FormFile file; 

	public FormFile getFile() { 
	   return file; 
	} 

	public void setFile(FormFile file) { 
	   this.file = file; 
	} 


	}