struts2上传文件

最新推荐文章于 2024-04-17 16:39:21 发布

原创最新推荐文章于 2024-04-17 16:39:21 发布 · 88 阅读

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文章标签：

#Struts #JSP #Java #Apache #UP

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fileupload.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@ taglib uri="/struts-tags" prefix="s" %>
<%
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>My JSP 'index.jsp' starting page</title>
  </head> 
  <body>

    <h1>Action文件上传</h1>
    <s:form method="post" enctype="multipart/form-data" action="up">
      <s:file label="上传文件" name="file" />
      <s:submit></s:submit>
    </s:form>
  </body>
</html>

struts.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
          "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
          "http://struts.apache.org/dtds/struts-2.0.dtd">
         
<struts>
<!-- 为了使用struts2提供的功能，需要继承系统提供的包default -->
	<package name="struts2" extends="struts-default">
		 		<!-- 文件上传 -->
		<action name="up" class="com.fileupload.UploadAction">
			<interceptor-ref name="execAndWait"/>
			<result name="wait">/wait.jsp</result>
			<result >/ok.jsp</result>
		</action>   
	</package>
</struts>

struts.properties

struts.devMode=false
struts.ognl.allowStaticMethodAccess=true
struts.multipart.saveDir=d:/
struts.multipart.maxSize=4097152

UploadAction.java

package com.fileupload;



import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;

import org.apache.struts2.ServletActionContext;

import com.opensymphony.xwork2.Action;

public class UploadAction implements Action {
	private File file;
	private String contentType;
	private String fileName;

	public void setFile(File file) {
		this.file = file;
	}

	public void setFileContentType(String contentType) {
		this.contentType = contentType;
	}

	public void setFileFileName(String fileName) {
		this.fileName = fileName;
	}

	public String execute() {
		String path = ServletActionContext.getServletContext().getRealPath("");
		
		try {
			FileInputStream fis = new FileInputStream(file);
			FileOutputStream fos = new FileOutputStream(path+"/"+fileName);
			byte[] bytes = new byte[1024];
			int num = 0;
			while((num = fis.read(bytes))>0){
				fos.write(bytes,0,num);
			}
			fos.flush();
			fos.close();
			fis.close();
			
			System.out.println("ok");
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		
		return SUCCESS;
	}
}

File

ContentType

FileName

这三个属性是必须的，在写set方法时必须是：

setFile setFileContentType setFileFileName