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 String[] getPicFileName() {
return picFileName;
}
public void setPicFileName(String[] picFileName) {
this.picFileName = picFileName;
}
public File[] getPic() {
return pic;
}
public void setPic(File[] pic) {
this.pic = pic;
}
public String upload() throws IOException {
for(int i=0;i<pic.length;i++){
File upPic=new File(ServletActionContext.getServletContext().getRealPath("upload"),picFileName[i]);
upPic.getParentFile().mkdirs();
FileInputStream in=null;
FileOutputStream out=null;
in=new FileInputStream(pic[i]);
out=new FileOutputStream(upPic);
byte[] byt=new byte[1024];
int len=0;
while((len=in.read(byt))!=-1){
out.write(byt, 0, len);
}
}
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:file name="pic" label="上传"/>
<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>
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时间： 2024-12-10 23:54:23