關于Struts2的多文件上傳

2019-11-14 20:58:01

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關于Struts2的多文件上傳

之前寫過一篇文章，關于Struts2文件上傳：http://www.companysz.com/lichenwei/p/3927964.html

現在來說下多文件上傳，其實就把上傳文件當成是一個數組去處理，和單文件上傳是一樣的思路，直接貼一段代碼：

uploads.jsp

<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%><%@ taglib 
UploadsAction.java
package com.lcw.struts2.upload;import java.io.File;import java.io.IOException;import org.apache.commons.io.FileUtils;import org.apache.struts2.ServletActionContext;import com.opensymphony.xwork2.ActionSupport;public class UploadsAction extends ActionSupport {    // <s:file label="上傳文件：" name="upload"></s:file>    private File[] upload;// 命名應該和上傳頁面name屬性值保持一致    private String[] uploadContentType;// 屬性值+ContentType    private String[] uploadFileName;// 屬性值+FielName    public void setUpload(File[] upload) {        this.upload = upload;    }    public void setUploadContentType(String[] uploadContentType) {        this.uploadContentType = uploadContentType;    }    public void setUploadFileName(String[] uploadFileName) {        this.uploadFileName = uploadFileName;    }    public String upload() {        for (int i = 0; i < upload.length; i++) {            File destFile = new File(ServletActionContext.getServletContext()                    .getRealPath("/uploads")                    + "/" + uploadFileName[i]);            try {                // 工具類                FileUtils.copyFile(upload[i], destFile);            } catch (IOException e) {                e.printStackTrace();            }        }        return SUCCESS;    }}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>    <constant name="struts.devMode" value="true" />    <constant name="struts.multipart.maxSize" value="20000000000"></constant>        <!-- 全局國際化配置 -->    <constant name="struts.custom.i18n.resources" value="messages"></constant>    <package name="struts2test" extends="struts-default">        <action name="uploads" class="com.lcw.struts2.upload.UploadsAction" method="upload">            <result name="success">/index.jsp</result>            <result name="input">/upload.jsp</result>        </action>    </package></struts>
來看下效果圖：