struts1.2上传文件到服务器

末蓝、 2024-02-17 20:08 8阅读 0赞

利用了struts1.2的jar包，如何添加jar包：如果用Eclipse可以在项目上右键直接从MyEclipse-->Add struts .

如图

![152902_1276222149Imum.jpg][]

然后开始编码，步骤如下：

1.页面：

<%@ page language="java" contentType="text/html; charset=utf-8"  
pageEncoding="gb2312"%>  
  
<html>  
<body>  
  
<form action="<%=request.getContextPath() %>/admin/HtmlFile.do" method="post" enctype="multipart/form-data" name="HtmlFileForm">  
<input type="file" name="file" />&nbsp;  
<html:submit />  
</form>  
</body>  
  
</html>

2.写文件Form

import org.apache.struts.action.ActionForm;  
import org.apache.struts.upload.FormFile;  
  
public class HtmlFileForm extends ActionForm \{  
private static final long serialVersionUID = -8008580023746850586L;  
public HtmlFileForm() \{  
\}  
private FormFile file;  
public FormFile getFile() \{  
return this.file;  
\}  
public void setFile(FormFile file) \{  
this.file = file;  
\}  
private String fname;  
public String getFname() \{  
return fname;  
\}  
public void setFname(String fname) \{  
this.fname = fname;  
\}  
private String size;  
public String getSize() \{  
return size;  
\}  
public void setSize(String size) \{  
this.size = size;  
\}  
\}

3.写Action

import java.io.FileOutputStream;  
import java.io.InputStream;  
import java.io.OutputStream;  
  
import javax.servlet.http.HttpServletRequest;  
import javax.servlet.http.HttpServletResponse;  
  
import org.apache.struts.action.Action;  
import org.apache.struts.action.ActionForm;  
import org.apache.struts.action.ActionForward;  
import org.apache.struts.action.ActionMapping;  
import org.apache.struts.upload.FormFile;  
  
  
public class HtmlFileAction extends Action \{  
  
public ActionForward execute(ActionMapping mapping, ActionForm form,  
HttpServletRequest request, HttpServletResponse response)  
throws Exception \{  
String dir = servlet.getServletContext().getRealPath("/upload");  
HtmlFileForm hff = (HtmlFileForm) form;  
FormFile file = hff.getFile();  
// if no file was uploaded,then display View  
if (file == null) \{  
return mapping.findForward("fail");  
\}  
// Get name and file size  
String fname = file.getFileName();  
String size = Integer.toString(file.getFileSize()) + "bytes";  
  
InputStream streamIn = file.getInputStream();  
OutputStream streamOut = new FileOutputStream(dir + "/" + fname);  
  
int bytesRead = 0;  
byte\[\] buffer = new byte\[8192\];  
while((bytesRead = streamIn.read(buffer,0,8192))!=-1)\{  
streamOut.write(buffer,0,bytesRead);  
\}  
  
streamOut.close();  
streamIn.close();  
  
//  
hff.setFname(fname);  
  
//Clean up our toys when done playing  
file.destroy();  
  
//Forward to default display  
request.setAttribute("inputfile", fname);  
return mapping.findForward("success");  
\}  
\}

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可以到这里下载源码：[http://dl.javaeye.com/topics/download/db0c7116-3a8e-3a6d-9dde-2cc82e0c5f50][http_dl.javaeye.com_topics_download_db0c7116-3a8e-3a6d-9dde-2cc82e0c5f50]

需要先注册账号。

[http://yuanyuan7891.javaeye.com/blog/711312][http_yuanyuan7891.javaeye.com_blog_711312]

![Image 1][]

[152902_1276222149Imum.jpg]: https://image.dandelioncloud.cn/pgy_files/images/2024/01/30/9a908fe7c35b47c29afdb53fb84f4c34.png
[http_dl.javaeye.com_topics_download_db0c7116-3a8e-3a6d-9dde-2cc82e0c5f50]: http://dl.javaeye.com/topics/download/db0c7116-3a8e-3a6d-9dde-2cc82e0c5f50
[http_yuanyuan7891.javaeye.com_blog_711312]: http://yuanyuan7891.javaeye.com/blog/711312
[Image 1]: