文件上传
2021-06-27 03:06
YPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
标签:str control html 4.01 rect 文件类型 source txt content todo
1.上传的步骤:
a.导入SmartUpload.jar
b.创建一个上传的类的对象
c.初始化
d.上传至服务器
e.保存
表单提交时需要指定enctype="multipart/form-data"(多数据类型提交)
http://www.atguigu.com/opensource.shtml#3(包下载地址)
package com.zuxia.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.SmartUpload;
import com.jspsmart.upload.SmartUploadException;
/**
*文件上传
*/
public class UploadServlet extends HttpServlet {
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
this.doPost(request, response);
}
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
//创建一个上传/下载的类的对象
SmartUpload su = new SmartUpload();
//初始化对象
su.initialize(getServletConfig(), request, response);
try {
//设置上传文件的信息(文件大小、文件类型)
//设置允许上传的文件的类型
su.setAllowedFilesList("txt,jpg,png,gif,mp3");
//设置不允许上传的文件的类型
su.setDeniedFilesList("exe");
//设置文件上传的大小限制
su.setMaxFileSize(1024*1024*2);//2M字节数
//上传文件至服务器
su.upload();
//指定文件保存路径
su.save("/files");
System.out.println("上传成功!");
response.sendRedirect("../show.jsp");
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
/*index.jsp*/
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
文件上传
标签:str control html 4.01 rect 文件类型 source txt content todo
原文地址:http://www.cnblogs.com/shishaohui/p/7148018.html