Struts2实现上传单个文件功能

2024-07-13 10:08:29

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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>

成功失败界面随便写一个就行了，不贴了。

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