uploadaction.java

实现文件的上传下载

/*
 * Generated by MyEclipse Struts
 * Template path: templates/java/JavaClass.vtl
 */
package com.inta.struts.action;

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

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

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.inta.struts.form.UploadForm;

/** 
 * MyEclipse Struts
 * Creation date: 12-25-2008
 * 
 * XDoclet definition:
 * @struts.action validate="true"
 */
public class UploadAction extends Action {
	/*
	 * Generated Methods
	 */

	/** 
	 * Method execute
	 * @param mapping
	 * @param form
	 * @param request
	 * @param response
	 * @return ActionForward
	 * @throws IOException 
	 * @throws FileNotFoundException 
	 */
	
	public ActionForward execute(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) throws FileNotFoundException, IOException {

		UploadForm uploadForm=(UploadForm)form;
		FormFile myFile= uploadForm.getTheFile();
		String contentType=myFile.getContentType();
		String fileName=myFile.getFileName();
		int fileSize=myFile.getFileSize();
		byte[] fileData=myFile.getFileData();
		System.out.println("contentType: "+contentType);
		System.out.println("File Name: "+fileName);
		System.out.println("File Size: "+fileSize);
		FileOutputStream out=new FileOutputStream(new File("D:\\"+fileName));
		out.write(fileData);
		out.close();
		HttpSession session=request.getSession();
		session.setAttribute("contentType",contentType);
		session.setAttribute("fileName",fileName);
		session.setAttribute("fileSize",Integer.valueOf(fileSize));
		
		return mapping.findForward("download");
	}
}