Struts2实现上传单个文件功能_Java教程

Struts2实现上传单个文件功能

2020-11-05 16:10我扶奶奶过哈登 Java教程

这篇文章主要为大家详细介绍了Struts2实现上传单个文件功能，具有一定的参考价值，感兴趣的小伙伴们可以参考一下

upload.jsp 这个页面选择提交文件，提交到uploadImage.action

									<%@ page language="java" contentType="text/html; charset=utf-8"

									  pageEncoding="utf-8"%>

									<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

									<html>

									<head>

									<meta http-equiv="Content-Type" content="text/html; charset=utf-8">

									<title>Insert title here</title>

									</head>

									<body>

									  <form action="uploadImage.action" enctype="multipart/form-data" method="post">

									    please select the file:<input type="file" name="upload">

									    <input type="submit" value="上传文件">

									  </form>

									</body>

									</html>

FileUploadAction.java 将传来的file进行处理

									package action;

									import java.io.File;

									import java.io.FileInputStream;

									import java.io.FileOutputStream;

									import org.apache.commons.io.IOUtils;

									import org.apache.struts2.ServletActionContext;

									import com.opensymphony.xwork2.ActionSupport;

									public class FileUploadAction extends ActionSupport{

									  private File upload;

									  private String uploadFileName;

									  private String uploadContentType;

									  public File getUpload() {

									    return upload;

									  }

									  public void setUpload(File upload) {

									    this.upload = upload;

									  }

									  public String getUploadFileName() {

									    return uploadFileName;

									  }

									  public void setUploadFileName(String uploadFileName) {

									    this.uploadFileName = uploadFileName;

									  }

									  public String getUploadContentType() {

									    return uploadContentType;

									  }

									  public void setUploadContentType(String uploadContentType) {

									    this.uploadContentType = uploadContentType;

									  }

									  public String execute(){

									    System.out.println(upload);

									    System.out.println(uploadContentType);

									    System.out.println(uploadFileName);

									    String savePath = ServletActionContext.getServletContext().getRealPath("/upload/"+this.uploadFileName);

									    System.out.println(savePath);

									    try{

									      FileInputStream fis = new FileInputStream(upload);

									      FileOutputStream fos = new FileOutputStream(savePath);

									      IOUtils.copy(fis, fos);

									      fos.flush();

									      fos.close();

									      fis.close();

									    }catch(Exception e){

									      e.printStackTrace();

									    }

									    return "success";

									  }

									}

uploadFileName和uploadContentType，这两个属性分别用于封装上传文件的文件名、上传文件的文件类型

Struts.xml配置

									<action name="uploadImage" class="action.FileUploadAction">

									 <result name="success">uploadSuccess.jsp</result>

									 <result name="input">uploadError.jsp</result>

									</action>