简单使用smartupload上传文件
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使用jsp和serlvet来实现最简单的上传。
1、页面index.jsp
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<%@ page language="java" pageEncoding="UTF-8"%><%String path = request.getContextPath();String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html> <head> <base href="<%=basePath%>"> <title>index.jsp</title><meta http-equiv="pragma" content="no-cache"><meta http-equiv="cache-control" content="no-cache"><meta http-equiv="expires" content="0"> </head> <body> <form action="upload" method="post" enctype="multipart/form-data"> <br> 姓名：<input type="text" name="uname"/> <br> 上传文件:<input type="file" name="pic"/> <br> <input type="submit" value="提交"></input> </form> </body></html>
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2、action跳转到了upload的servlet，所以要web.xml里面配置，web.xml:
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<?xml version="1.0" encoding="UTF-8"?><web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"><servlet><servlet-name>uploadAction</servlet-name><servlet-class>com.pop.action.SmartuploadAction</servlet-class></servlet><servlet-mapping><servlet-name>uploadAction</servlet-name><url-pattern>/upload/*</url-pattern></servlet-mapping><welcome-file-list><welcome-file>index.jsp</welcome-file></welcome-file-list></web-app>?
3、映射到的action文件，SmartuploadAction.java:
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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;@Overrideprotected 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requestRequest 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);}}?
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最后说明：使用的组件包为smartupload.zip。
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