java--struts文件上传

蔚落 2022-08-27 14:55 142阅读 0赞

原文转自：[http://blog.csdn.net/chinasoftosg/article/details/7903045][http_blog.csdn.net_chinasoftosg_article_details_7903045]

**UploadAction.java:**

package crm.action;

import java.io.File;  
import java.io.FileInputStream;  
import java.io.FileOutputStream;  
import org.apache.struts2.ServletActionContext;  
import com.opensymphony.xwork2.ActionSupport;

public class UploadAction extends ActionSupport \{  
    private File upload;    
    private String uploadFileName;    
    private String uploadContentType;  
    private String savePath;  
       
    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 getSavePath() \{  
  //得到savePath的绝对路径  
  String filePath = ServletActionContext.getServletContext().getRealPath(savePath);  
  File saveFile = new File(filePath);  
  if(!saveFile.exists())  
  \{  
   saveFile.mkdir();  
  \}  
  return filePath;  
 \}

public void setSavePath(String savePath) \{    
  this.savePath = savePath;  
 \}  
   
 public String uploadFile()  
 \{  
  try \{  
   FileOutputStream fos = new FileOutputStream(getSavePath()+"\\\\"+getUploadFileName());  
   FileInputStream fis = new FileInputStream(getUpload());  
   byte\[\] buffer=new byte\[1024\];  
   int len = 0;  
   while((len = fis.read(buffer))>0)  
   \{  
    fos.write(buffer, 0, len);  
   \}  
  \} catch (Exception e) \{  
   e.printStackTrace();  
  \}  
  return SUCCESS;  
 \}  
\}

**struts.xml:**

<action name="uploadFile" class="uploadAction" method="uploadFile">  
     
     
   <param name="savePath">/upload</param>  
   <result>/pages/file/upload.jsp</result>  
     
   <interceptor-ref name="fileUpload">  
     
   <param name="allowedTypes">image/png,image/gif,image/pjpeg</param>  
     
   <param name="maximumSize">20000</param>  
   </interceptor-ref>  
  </action>

**applicationContext.xml:**

**upload.jsp:**

<%@ page language="java" import="java.util.\*" pageEncoding="utf-8"%>  
<%@ taglib prefix="s" uri="/struts-tags"%>  
<%  
String path = request.getContextPath();  
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";  
%>  
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">  
<html>  
  <head>  
    <title>上传文件</title>     
 <meta http-equiv="pragma" content="no-cache">  
 <meta http-equiv="cache-control" content="no-cache">  
 <meta http-equiv="expires" content="0">      
 <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">  
 <meta http-equiv="description" content="This is my page">  
  </head>  
  <body style="text-align: center;">  
   <s:form action="uploadFile.action" enctype="multipart/form-data" method="post">  
   文件：<input type="file" name="upload"/><br/>  
   <s:submit value="上传"></s:submit>  
   </s:form>  
  </body>  
</html>

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[http_blog.csdn.net_chinasoftosg_article_details_7903045]: http://blog.csdn.net/chinasoftosg/article/details/7903045
[0]: http://blog.csdn.net/chinasoftosg/article/details/7903045#