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struts

Struts JSP HTML Apache

public ActionForward upLoad(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) throws FileNotFoundException, IOException {
		FileForm fileForm=(FileForm)form;
		List<FileForm.myFile> files=fileForm.getImportFileList();
		
			for(int i =0;i<files.size();i++){
			FileForm.myFile uploadFile = files.get(i);
            FormFile file = uploadFile.getFile();
            
            if(file==null||file.getFileName()==null||"".equals(file.getFileName())){
                System.out.println("file is null");
                continue;//这里判断JSP页面中的input框是否有值
               // return new  ActionForward(request.getHeader("Referer"),true);
            }
            else{
            	 String fileName = file.getFileName();
                 int fileSize = file.getFileSize();
                 byte[] fileDate = file.getFileData();

//下面这句得到服务器上的上传目录+文件名
                 String path=this.getServlet().getServletContext().getRealPath("/")+UPLOAD_FOLDER+fileName;
           
                 UploadUtil.saveFile(path,fileDate,fileSize,File_DEST);//调用uplodautil中的方法上传文件
                 file.destroy();
                       }
        }

		
		return mapping.findForward("success");
	}

formbean:

public class FileForm extends ActionForm {
	/*
	 * Generated fields
	 */
public	class myFile {
		private FormFile file;
	    public FormFile getFile() {
	        return file;
	    }
	    public void setFile(FormFile file) {
	        this.file = file;
	    }
	}

	public static final String ERROR_PROPERTY_MAX_LENGTH_EXCEEDED = "org.apache.struts.webapp.upload.MaxLengthExceeded";
	protected List<myFile> importFile;
	public FileForm()
	{
		importFile=new ArrayList<myFile>();
		importFile.add(0,new myFile());//初始化页面只有一个input
		
	}
	/*
	 * Generated Methods
	 */

	/**
	 * Method validate
	 * 
	 * @param mapping
	 * @param request
	 * @return ActionErrors
	 */
	public ActionErrors validate(ActionMapping mapping,
			HttpServletRequest request) {
		ActionErrors errors=new ActionErrors();
	     Boolean maxLengthExceeded = (Boolean) request.getAttribute(
                 MultipartRequestHandler.ATTRIBUTE_MAX_LENGTH_EXCEEDED);

if ((maxLengthExceeded != null) && (maxLengthExceeded.booleanValue()))

{
 errors.add("文件", new ActionMessage("too big"));
}
return errors;

/*if (null == importFile.getFileName() || "".equals(theFile.getFileName())) {   

	errors.add("theFileError", new ActionMessage("errors.upload.file"));  

	}*/ 

	

	}

	/**
	 * Method reset
	 * 
	 * @param mapping
	 * @param request
	 */
	public void reset(ActionMapping mapping, HttpServletRequest request) {
		// TODO Auto-generated method stub
	}

	public List<myFile> getImportFileList() {
		return importFile;
	}

	public void setImportFileList(List<myFile> importFile) {
		this.importFile = importFile;
	}

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

	public void setImportFile(int index,FormFile file) {
		 myFile element= new myFile();
		 element.setFile(file);
		this.importFile .add(index, element);
	}





}

JSP页面:

 <body>

        <html:form action="/file.do?method=upLoad"  method="post" enctype="multipart/form-data">
	
           
            <%--<logic:iterate id="importFile" name="fileForm" property="importFileList" indexId="index">
            <html:file property="file" name="importFile" indexed="true"/><html:errors property="theFile"/><br/>
            </logic:iterate>--%>
            <input type="file" name="importFile[0].file"/><br>
            <input type="file" name="importFile[1].file"/><br>
            <input type="file" name="importFile[2].file"/><br>
            <input type="file" name="importFile[3].file"/><br>
            <input type="file" name="importFile[4].file"/><br>
            <input type="file" name="importFile[5].file"/><br>

    
  
            <html:submit/><html:cancel/>

            

        </html:form>

    </body>

uploadUtil 类:

package com.yourcompany.struts.action;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;

public class UploadUtil {
	private static final String DATABASE_DEST = "database";

	private static final String FILE_DEST = "file";

	private static final int MAX_SIZE = 1024 * 1024;

	private static final String[] TYPES = { ".jpg", ".gif", ".zip", ".rar" };

	public static void saveFile(String fileName, byte[] fileData, int size,
	String dest) throws FileNotFoundException, IOException {

		if (!checkSize(size)) {
			throw new IOException(size + " is too large !");
		}

		if (!checkType(fileName)) {
			throw new IOException("Unvaildate type !");
		}

		if (dest.equals(DATABASE_DEST)) {
			saveToDb(fileName, fileData);
		}

		if (dest.equals(FILE_DEST)) {
			saveToFile(fileName, fileData);
		}

	}

	private static void saveToDb(String fileName, byte[] fileData) {

	}

	private static void saveToFile(String fileName, byte[] fileData)
	throws FileNotFoundException, IOException {
		OutputStream o = new FileOutputStream(fileName);
		o.write(fileData);
		o.close();
	}

	public static void delFile(String fileName, String dest)
	throws NullPointerException, SecurityException {
		if (dest.equals(DATABASE_DEST)) {
			delFromDb(fileName);
		}

		if (dest.equals(FILE_DEST)) {
			delFromFile(fileName);
		}

	}

	private static void delFromDb(String fileName) {

	}

	private static void delFromFile(String fileName)
	throws NullPointerException, SecurityException {

		File file = new File(fileName);
		if (file.exists())
			file.delete();
	}

	private static boolean checkSize(int size) {
		if (size > MAX_SIZE)
			return false;
		return true;

	}

	private static boolean checkType(String fileName) {
		for (int i = 0; i < TYPES.length; i++) {
			if (fileName.toLowerCase().endsWith(TYPES[i])) {
				return true;
			}

		}
		return false;

	}

}

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