文件上传—jspSmartUpload组件

来源：互联网发布：sql select as table 编辑：程序博客网时间：2024/05/17 03:52

1、jsp简单页面

<%@ page language="java" contentType="text/html; charset=utf-8"%><html>    <head>upload文件上传</head>    <body>        <%-- "<%=request.getContextPath()%>/UploadServlet"--%>        <form action="UploadDemo/UploadServlet" method="post" enctype="multipart/form-data">        文件描述:<input type="text" name="desc" size="20" maxlength="80">        文件名称:<input type="file" name="file" size="20" maxlength="80">        <input type="submit" value="上传">        </form>    </body></html>

2、UploadServlet

package UploadDemo;import java.io.IOException;import java.io.PrintWriter;import javax.security.auth.message.callback.SecretKeyCallback.Request;import javax.servlet.ServletException;import javax.servlet.ServletRequest;import javax.servlet.annotation.WebServlet;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;/** * Servlet implementation class UploadServlet */public class UploadServlet extends HttpServlet {    private static final long serialVersionUID = 1L;    protected void doPost(HttpServletRequest request, HttpServletResponse response)             throws ServletException, IOException {        response.setCharacterEncoding("utf-8");        PrintWriter out=response.getWriter();        out.println("<html>");        out.println("<body>");        out.println("<hr>");        out.println("执行......");        SmartUpload mySmartUpload=new SmartUpload();        int count=0;  //上传文件数量        try{            //初始化工作            System.out.println("执行中-----");            mySmartUpload.initialize(this.getServletConfig(),request,response);            //限制文件上传最大长度            mySmartUpload.setMaxFileSize(50*1024*1024);            //设置文件上传的文件，仅允许doc与txt文件            mySmartUpload.setAllowedFilesList("doc,txt");            mySmartUpload.upload();            //获得上传的文件            File myfile=mySmartUpload.getFiles().getFile(0);            //获得上传文件的名字            String filename=myfile.getFileName();            //保存文件的目录            count=mySmartUpload.save("F:\\");            //获得文件的描述信息            Request re =(Request) mySmartUpload.getRequest();            String desc=((ServletRequest) re).getParameter("desc");            out.println(count+"file uploaded.<br>");            out.println("file description:"+desc);          }catch(Exception e){            out.println("Unable to upload the file!!");            out.println("Error:"+e.toString());        }        out.println("</body>");        out.println("</html>");     }}

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