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struts2实现多文件上传的示例代码

作者：iFan138　　发布时间：2022-03-09 23:40:54　

标签：struts,文件,上传

开发环境JDK1.8 eclipse struts2-2.3.31

1.创建web项目

2.导入struts2核心jar包

3.更改web.xml配置文件（只要配置好struts2的Filter就好）

4.创建src/struts.xml文件

<?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>

<constant name="struts.action.extension" value="do" />

<constant name="struts.serve.static.browserCache" value="false" />

<constant name="struts.configuration.xml.reload" value="true" />

<constant name="struts.devMode" value="true" />

<constant name="struts.ui.theme" value="simple" />


<constant name="struts.i18n.encoding" value="UTF-8" />

<constant name="struts.multipart.maxSize" value="10701096"/>

<constant name="struts.multipart.saveDir " value="d:/tmp" />

<package name="upload" extends="struts-default">
<action name="fileUpload" class="com.ifan.action.FileUpload">

<param name="savePath">WEB-INF/images</param>
<result name="success">/success.jsp</result>
<result name="input">/error.jsp</result>
<interceptor-ref name="fileUpload">

<param name="allowedTypes">image/bmp,image/png,image/gif,image/jpeg</param>

<param name="maximumSize">1025956</param>
</interceptor-ref>

<interceptor-ref name="defaultStack" />
</action>
</package>
</struts>

5.创建src/com.ifan.action.FileUpload.Java

package com.ifan.action;

import java.io.File;

import org.apache.commons.io.FileUtils;
import org.apache.struts2.ServletActionContext;

import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;

public class FileUpload extends ActionSupport{

private File[] image; //上传的文件
private String[] imageFileName; //文件名称
private String[] imageContentType; //文件类型

public String execute() throws Exception {
ServletActionContext.getRequest().setCharacterEncoding("UTF-8");
String realpath = ServletActionContext.getServletContext().getRealPath("/images");
System.out.println(realpath);
if (image != null) {
File savedir=new File(realpath);
if(!savedir.getParentFile().exists())
savedir.getParentFile().mkdirs();
for(int i=0;i<image.length;i++){
File savefile = new File(savedir, imageFileName[i]);
FileUtils.copyFile(image[i], savefile);
}
ActionContext.getContext().put("message", "文件上传成功");
}
return "success";
}

public File[] getImage() {
return image;
}

public void setImage(File[] image) {
this.image = image;
}

public String[] getImageContentType() {
return imageContentType;
}

public void setImageContentType(String[] imageContentType) {
this.imageContentType = imageContentType;
}

public String[] getImageFileName() {
return imageFileName;
}

public void setImageFileName(String[] imageFileName) {
this.imageFileName = imageFileName;
}
}

6.创建WebContent/index.jsp ，作为上传文件的页面

<％@ page language="java" import="java.util.*" pageEncoding="UTF-8"％>
<％@ taglib prefix="s" uri="/struts-tags" ％>
<％
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％>" rel="external nofollow" >

<title>My JSP 'hello.jsp' starting page</title>

<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">


</head>

<body>

<s:form action="fileUpload" namespace="/" method="POST" enctype="multipart/form-data">

<s:file name="image" label="Select a File to upload" size="40" />
<s:file name="image" label="Select a File to upload" size="40" />
<s:submit value="submit" name="submit" />

</s:form>

</body>
</html>

7.创建WebContent/success.jsp 作为文件上传成功跳转的页面，创建WebContent/error.jsp 作为文件上传失败的页面，创建WebContent/images文件夹，作为上传文件的存储位置

来源：http://blog.csdn.net/ifan138/article/details/61206275

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struts2实现多文件上传的示例代码

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