Struts2简单多文件上传，解决文件名乱码

不念不忘少年蓝@ 2022-05-19 09:11 187阅读 0赞

1、建立javaWeb工程fileUpload

2、在Web-Root下新建upload.jsp

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
    <%@ taglib prefix="s" uri="/struts-tags" %>
    <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
    <html>
      <head>   
        <title>my file upload</title>
      </head>
      <body>					
        <s:form action="uploadAction" method="post" enctype="multipart/form-data">
    		<s:file name="upload" label="文件上传1"></s:file>
    		<s:file name="upload" label="文件上传2"></s:file>
    		<s:file name="upload" label="文件上传3"></s:file>
        	<s:submit value="上传"></s:submit>
        </s:form>
      </body>
    </html>

3、在src>com.action包下新建UploadAction.java

package com.action;
    import java.io.File;
    import java.io.FileInputStream;
    import java.io.FileOutputStream;
    import java.io.InputStream;
    import java.io.OutputStream;
    import java.util.List;
    import java.util.logging.Logger;
    import com.opensymphony.xwork2.ActionContext;
    import com.opensymphony.xwork2.ActionSupport;
    
    public class UploadAction extends ActionSupport{	
    	private List<File> upload;	//上传的文件
    	private List<String> uploadFileName;//上传的文件名
    	public List<File> getUpload() {
    		return upload;
    	}
    	public void setUpload(List<File> upload) {
    		this.upload = upload;
    	}
    	public List<String> getUploadFileName() {
    		return uploadFileName;
    	}
    	public void setUploadFileName(List<String> uploadFileName) {
    		this.uploadFileName = uploadFileName;
    	}
    	public String execute() throws Exception{
    		
    		if(upload!=null){
    			for(int i=0;i<upload.size();i++){
    				InputStream is=new FileInputStream(upload.get(i));//获取文件的输入流
    				OutputStream os=new FileOutputStream("d:\\upload\\"+getUploadFileName().get(i));//指定输出流地址
    				byte buffer[] = new byte[1024];
    				int count=0;
    				while((count=is.read(buffer))>0){
    					os.write(buffer,0,count);
    				}
    				os.close();
    				is.close();
    			}
    		}	
    		return SUCCESS;
    	}
    }

4、在src下新建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>	
    		
    	<package name="default" extends="struts-default">
    		
    		<action name="uploadAction" class="com.action.UploadAction">
    			<result>/success.jsp</result>
    		</action>
    		
    	</package>
    	<constant name="struts.multipart.saveDir" value="/tmp"></constant>
    </struts>

5、success.jsp

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
    <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
    <html>
      <head> 
        <title>file upload</title>
      </head>
      
      <body>
        File Upload Success!
      </body>
    </html>

6、测试结果

![70][]

![70 1][]

注意！！ 如果遇到的上传的文件名是乱码，可能原因是文件名变量不是uploadFileName。

[70]: /images/20220519/9085e295a8e44f51a934e600eff40c21.png
[70 1]: /images/20220519/86e6cf2b2f50470abd8e9784dd3076b9.png