java组件smartupload实现上传文件功能

使用jsp和serlvet来实现最简单的上传，供大家参考，具体内容如下

1、页面index.jsp

<%@ page language="java" pageEncoding="UTF-8"%> 
<% 
String path = request.getContextPath(); 
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; 
%> 
 
 
  
  
  
  
  
  
  
  
  
  
 

2、action跳转到了upload的servlet，所以要web.xml里面配置，web.xml:

 
 
  
 uploadAction 
 com.pop.action.SmartuploadAction 
  
  
 uploadAction 
 /upload/* 
  
  
 index.jsp 
  
 

3、映射到的action文件，SmartuploadAction.java:

package com.pop.action; 
 
import java.io.IOException; 
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 com.soft4j.httpupload4j.Request; 
import com.soft4j.httpupload4j.SmartUpload; 
import com.soft4j.httpupload4j.SmartUploadException; 
 
public class SmartuploadAction extends HttpServlet { 
 private static final long serialVersionUID = -8610555375032925108L; 
 @Override 
 protected void doPost(HttpServletRequest req, HttpServletResponse resp) 
  throws ServletException, IOException { 
 req.setCharacterEncoding("utf-8"); 
 resp.setCharacterEncoding("utf-8"); 
 SmartUpload su = new SmartUpload(); 
 // 由于multipart/form-data的传输原因导致req不能使用，所以使用smartupload产生的request 
 Request reqest = su.getRequest(); 
 // 获得pageContext对象 
 PageContext pageContext = JspFactory.getDefaultFactory() 
  .getPageContext(this, req, resp, null, true, 8192, true); 
 su.initialize(pageContext); 
 try { 
  su.upload(); 
  // 上传到本项目的upload目录 
  su.save("upload"); 
 } catch (SmartUploadException e) { 
  e.printStackTrace(); 
 } 
 // 使用smartupload产生的reqest对象来获得页面传递的参数 
 String uname = reqest.getParameter("uname"); 
 System.out.println(uname); 
 } 
} 

最后说明：使用的组件包为smartupload.zip。

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持考高分网。