struts2-File Upload

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Java

java struts servlet jsp

/**
 * Servlet 代码
 */
import java.io.File;
import javax.servlet.ServletContext;
import org.apache.struts2.util.ServletContextAware;
import com.opensymphony.xwork2.ActionSupport;
public class FileUpAction extends ActionSupport implements ServletContextAware {

	private File myFile;
	private String myFileFileName;
	private String myFileContentType;
	private ServletContext servletContext;

	public File getMyFile() {
		return myFile;
	}
	public void setMyFile(File myFile) {
		this.myFile = myFile;
	}
	public String getMyFileFileName() {
		return myFileFileName;
	}
	public void setMyFileFileName(String myFileFileName) {
		this.myFileFileName = myFileFileName;
	}
	public String getMyFileContentType() {
		return myFileContentType;
	}
	public void setMyFileContentType(String myFileContentType) {
		this.myFileContentType = myFileContentType;
	}
	public void setServletContext(ServletContext servletContext) {
		this.servletContext = servletContext;
	}

	public String upLoad() {
	String result = null;
	if (myFile != null) {
	String driverPath = servletContext.getRealPath("date");
	File file = new File(driverPath, this.myFileFileName);
	myFile.renameTo(file);
	result = SUCCESS;
} else {
	result = INPUT;
}
return result;
}
 }

/**
 * Jsp 页面
 */
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@taglib prefix="s" uri="/struts-tags"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
 <head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
 </head>
  <body>
<s:form action="fileUp.action" method="post" enctype="multipart/form-data">
  <s:file name="myFile" label="select your file" size="50" />
  <s:submit value="upload"/>
</s:form>
 </body>
</html>

/**
 * web.xml
 */
<?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">

<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>

<welcome-file-list>
  <welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>

/**
 * struts.xml
 */
<?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>
	<package name="default" namespace="/" extends="struts-default">
<action name="File">
<result>/jsp/FileUpload.jsp</result>
</action>
<action name="fileUp" class="org.struts.action.up.FileUpAction" method="upLoad">
	<interceptor-ref name="fileUpload">
	<param name="maximumSize">100000000</param> //控制文件的大小
	<param name="allowedExtensions"> //控制上传的类型
	jpg,pdf,doc
	</param>
</interceptor-ref>
<interceptor-ref name="basicStack" />
<result name="success">/jsp/success.jsp</result>
<result name="input">/jsp/FileUpload.jsp</result>
</action>
</package>
</struts>

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