Struts2文件的上传实例
需要的包文件：
commons-fileupload-1.2.1.jar commons-io-1.3.2.jar commons-logging-1.1.jar freemarker-2.3.13.jar ognl-2.6.11.jar struts2-core-2.1.6.jar xwork-2.1.2.jar
Struts2Test.java源代码：
package com.test; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; import org.apache.struts2.ServletActionContext; import com.opensymphony.xwork2.ActionSupport; @SuppressWarnings("serial") public class Struts2Test extends ActionSupport{ private String picFileName; private File pic; public File getPic() { return pic; } public void setPic(File pic) { this.pic = pic; } public String getPicFileName() { return picFileName; } public void setPicFileName(String picFileName) { this.picFileName = picFileName; } public String upload() throws IOException { //输出的文件路径以及文件名java.io.File.File(String parent, String child) File upPic=new File(ServletActionContext.getServletContext().getRealPath("upload"),picFileName); FileInputStream in=null; FileOutputStream out=null; //得到父类路径，如果不存在则创建 upPic.getParentFile().mkdirs(); in=new FileInputStream(pic); //读入文件 out=new FileOutputStream(upPic); //输出文件 int len=0; //数据长度 byte[] byt=new byte[1024]; //每次读入的数据包大小 while((len=in.read(byt))!=-1){ //如果有数据读入则输出 out.write(byt, 0, len); } in.close(); //关闭读入流 out.close(); //关闭输出流 return SUCCESS; } }struts.xml源代码：
<?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.3//EN" "http://struts.apache.org/dtds/struts-2.3.dtd"> <struts> <constant name="struts.devMode" value="true" /> <package name="default" extends="struts-default" namespace="/"> <action name="hello" class="com.test.Struts2Test" > <result name="success">/success.jsp</result> </action> </package> </struts>
web.xml源代码：
<?xml version="1.0" encoding="UTF-8"?> <web-app id="WebApp_9" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"> <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> <filter> <filter-name>struts2</filter-name> <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter </filter-class> </filter> <filter-mapping> <filter-name>struts2</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> </web-app>
index.jsp源代码：
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %> <%@taglib prefix="s" uri="/struts-tags"%> <html> <head> <base href="<%=basePath%>"> <title>My JSP 'index.jsp' starting page</title> </head> <body> <s:form action="hello!upload" enctype="multipart/form-data" method="post"> <!-- enctype="multipart/form-data" 此处是一个很容易忽略的盲点 --> <s:file name="pic" label="上传" /> <s:submit value="提交"/> </s:form> </body> </html>
success.jsp源代码：
<%@ page language="java" import="java.util.*" pageEncoding="ISO-8859-1"%> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %> <html> <head> <base href="<%=basePath%>"> <title>SUCCESS</title> </head> <body> SUCCESS! <br> </body> </html>来自：http://blog.csdn.net/zzy1078689276/article/details/47406209
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