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 · 98 阅读

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#Struts #Apache #JSP #XHTML #XML

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struts上传需要的jar包（commons-fileupload-1.2.1.jar， commons-io-1.3.2.jar）

jsp客户端请求

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
	"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
	<title> 简单的文件上传 </title>
	<meta name="author" content="Yeeku.H.Lee" />
	<meta name="website" content="http://www.crazyit.org" />
	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
</head>
<body>
<form action="upload.action" method="post"
	enctype="multipart/form-data">
  	文件标题：<input type="text" name="title" /><br />
  	选择文件：<input type="file" name="upload" /><br />
	<input value="上传" type="submit" />
</form>
</body>
</html>

Action处理（参数要注意）uploadContentType封装文件类型， uploadFileName封装文件名， upload,title要对应jsp的name参数（部分set和get方法没写）

package com.lbx.action;

import java.io.File;

import javax.servlet.ServletContext;

import org.apache.commons.io.FileUtils;
import org.apache.struts2.util.ServletContextAware;

import com.opensymphony.xwork2.ActionSupport;

public class UploadAction extends ActionSupport implements
        ServletContextAware {
    private File upload;// 实际上传文件
    private String uploadContentType; // 文件的内容类型
    private String uploadFileName; // 上传文件名
    private String title;// 上传文件时的备注
    private ServletContext context;
    public String execute() throws Exception {
        try {
            String targetDirectory = context.getRealPath("/upload");
            String targetFileName = uploadFileName;
            File target = new File(targetDirectory, targetFileName);
            FileUtils.copyFile(upload, target);            
            setUploadFileName(target.getPath());//保存文件的存放路径
        } catch (Exception e) {
            addActionError(e.getMessage());
            return INPUT;
        }
        return SUCCESS;
    }

    public String getTitle() {
		return title;
	}

	public void setTitle(String title) {
		this.title = title;
	}

	public ServletContext getContext() {
		return context;
	}

	public void setContext(ServletContext context) {
		this.context = context;
	}

	public File getUpload() {
        return upload;
    }

    public void setUpload(File upload) {
        this.upload = upload;
    }

    public String getUploadContentType() {
        return uploadContentType;
    }

    public void setUploadContentType(String uploadContentType) {
        this.uploadContentType = uploadContentType;
    }

    public String getUploadFileName() {
        return uploadFileName;
    }

    public void setUploadFileName(String uploadFileName) {
        this.uploadFileName = uploadFileName;
    }

    public void setServletContext(ServletContext context) {
        this.context = context;
    }

}

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.ognl.allowStaticMethodAccess" value="true"></constant>
    <package name="login" namespace="/" extends="struts-default">
    	<action name="upload" class="com.lbx.action.UploadAction">
    		<param name="savePath">/upload</param>
    		<result>
    			/success.jsp
    		</result>
    	</action>
    </package>
    
</struts>