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📄 uploadfile.java

📁 这是我自己做的一个选课系统
💻 JAVA
字号:
package org.chooseClass.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 javax.servlet.jsp.JspFactory;
import javax.servlet.jsp.PageContext;

import org.chooseClass.smartUpLoad.File;
import org.chooseClass.smartUpLoad.SmartUpload;
import org.chooseClass.smartUpLoad.SmartUploadException;

public class UploadFile extends HttpServlet {

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

	/**
	 * The doGet method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to get.
	 * 
	 * @param request the request send by the client to the server
	 * @param response the response send by the server to the client
	 * @param pageContext 
	 * @throws ServletException if an error occurred
	 * @throws IOException if an error occurred
	 */
	public void doGet(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>");
		out.print("    This is ");
		out.print(this.getClass());
		out.println(", using the GET method");
		out.println("  </BODY>");
		out.println("</HTML>");
		out.flush();
		out.close();
		//创建SmartUpload实例
		SmartUpload su = new SmartUpload();
		//初始化上下文环境
		//su.initialize(pageContext);
		//上传文件
		try {
			su.upload("gb2312");
		} catch (SmartUploadException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		//取得上传的文件
		for (int i=0;i<su.getFiles().getCount();i++)
		{
		File tFile = su.getFiles().getFile(0);
		if(!tFile.isMissing()){
			//取得上载文件的名字
		    String fileName = tFile.getFileName();
		    //取得不带后缀的文件名
		    String suffix = fileName.substring(0, fileName.lastIndexOf("."));
		    //取得后缀名
		    String ext = tFile.getFileExt();
		    //取得上传文件的大小
		    int fileSize = tFile.getSize();
		    //保存路径
		    String savePath = getServletContext().getRealPath("/")+"upload\\";
		    String trace = savePath+fileName;
		    //将文件保存在服务器端
		    try {
				tFile.saveAs(trace,su.SAVE_PHYSICAL);
			} catch (SmartUploadException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
			out.println("上传成功!");
		}else{
			out.println("上传失败!");
		}
		}

	}

	/**
	 * 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
	 * @param pageContext 
	 * @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>");
		out.print("    This is ");
		out.print(this.getClass());
		out.println(", using the POST method");
		out.println("  </BODY>");
		out.println("</HTML>");
		out.flush();
		out.close();
		 //获得页面输出流

        JspFactory _jspxFactory = JspFactory.getDefaultFactory();;

        PageContext pageContext = null;
		//创建SmartUpload实例
		SmartUpload su = new SmartUpload();
	    pageContext = _jspxFactory.getPageContext(this, request,response, null, true, 8192, true);
		//if(pageContext!=null){System.out.println("ok");}
	    //初始化上下文环境
		su.initialize(pageContext);
		//上传文件
		try {
			su.upload();
		} catch (SmartUploadException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		try {
			int count = su.save("upload");
			System.out.println(getServletContext().getRealPath("/"));
		} catch (SmartUploadException e1) {
			// TODO Auto-generated catch block
			e1.printStackTrace();
		}
		//取得上传的文件
		for (int i=0;i<su.getFiles().getCount();i++)
		{
		File tFile = su.getFiles().getFile(1);
		if(!tFile.isMissing()){
			//取得上载文件的名字
		    String fileName = tFile.getFileName();
		    //取得不带后缀的文件名
		    String suffix = fileName.substring(0, fileName.lastIndexOf("."));
		    //取得后缀名
		    String ext = tFile.getFileExt();
		    //取得上传文件的大小
		    int fileSize = tFile.getSize();
		    //保存路径
		    String savePath = getServletContext().getRealPath("/")+"upload\\";
		    String trace = savePath+fileName;
		    //将文件保存在服务器端
		    try {
				tFile.saveAs(trace,su.SAVE_PHYSICAL);
			} catch (SmartUploadException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
			out.println("上传成功!");
		}else{
			out.println("上传失败!");
		}
	    }
	}

}

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