发布于 2017-08-17 21:47:37 | 132 次阅读 | 评论: 0 | 来源: 网友投递

这里有新鲜出炉的精品教程,程序狗速度看过来!

Struts Java MVC框架

Struts 是Apache软件基金会(ASF)赞助的一个开源项目。它最初是Jakarta项目中的一个子项目,并在2004年3月成为ASF的顶级项目。它通过采用JavaServlet/JSP技术,实现了基于Java EEWeb应用的MVC设计模式的应用框架,是MVC经典设计模式中的一个经典产品。


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>

成功失败界面随便写一个就行了,不贴了。

以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持PHPERZ。



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