基于servlet和jsp的文件上传下载小例子的代码详情-代码-最代码

首页>代码>基于servlet和jsp的文件上传下载小例子>/upload/src/com/servlet/UploadServlet.java
package com.servlet;

import java.io.IOException;
import java.io.PrintWriter;

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

import com.jspsmart.upload.File;
import com.jspsmart.upload.SmartUpload;
import com.jspsmart.upload.SmartUploadException;

public class UploadServlet extends HttpServlet {

	/**
	 * Constructor of the object.
	 */
	public UploadServlet() {
		super();
	}

	/**
	 * Destruction of the servlet. <br>
	 */
	public void destroy() {
		super.destroy(); // Just puts "destroy" string in log
		// Put your code here
	}

	/**
	 * The doPost method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to post.
	 * 
	 * @param request the request send by the client to the server
	 * @param response the response send by the server to the client
	 * @throws ServletException if an error occurred
	 * @throws IOException if an error occurred
	 */
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
	
		response.setContentType("text/html");
		PrintWriter out = response.getWriter();
		out
				.println("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">");
		out.println("<HTML>");
		out.println("  <HEAD><TITLE>A Servlet</TITLE></HEAD>");
		out.println("  <BODY>");
		SmartUpload su=new SmartUpload();
		su.initialize(this.getServletConfig(),request,response);
		su.setAllowedFilesList("doc,txt"); 
		try {
			su.upload();
			String name=su.getRequest().getParameter("username");
			System.out.println(name);
			for(int i=0;i<su.getFiles().getCount();i++){
				File file=su.getFiles().getFile(i);
				file.saveAs("/upfile/"+file.getFileName());
			}
			//su.save("/upfile");
			out.println("ok");
		} catch (Exception e) {
			out.println("error");
		}
		
		
		out.println("  </BODY>");
		out.println("</HTML>");
		out.flush();
		out.close();
	}

	/**
	 * Initialization of the servlet. <br>
	 *
	 * @throws ServletException if an error occure
	 */
	public void init() throws ServletException {
		// Put your code here
	}

}