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ssh上传图片

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作者 正文
   发表时间:2008-06-25  
说明这是一个ssh集成项目中使用Struts做的上传图片的demo,数据库中存储的是上传图片的名称

需要在webroot下建一个upload的文件夹,上传之后可以在你的WEB服务器,你的工程里面看到你上传的图片。



这是一个action




package com.song.action;

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;

import com.song.form.FileUploadAndSaveForm;

import java.io.*;

public class FileUploadAndSaveAction extends Action {



public ActionForward execute(ActionMapping mapping, ActionForm form,
   HttpServletRequest request, HttpServletResponse response) throws Exception {
  FileUploadAndSaveForm myForm = (FileUploadAndSaveForm) form;

  FormFile myFile = myForm.getTheFile();
  String contentType = myFile.getContentType();
  //Get the file name
  String fileName = myFile.getFileName();
 
 
  //String fileName = request.getParameter("id");
 
 
 
 
  //int fileSize       = myFile.getFileSize();
  byte[] fileData = myFile.getFileData();
  //Get the servers upload directory real path name
  String filePath = getServlet().getServletContext().getRealPath("/")
    + "upload";
 
  if (!fileName.equals("")) {
   System.out.println("Server path:" + filePath);
   //Create file
   File fileToCreate = new File(filePath, fileName);
   //If file does not exists create file                    
   if (!fileToCreate.exists()) {
    FileOutputStream fileOutStream = new FileOutputStream(
      fileToCreate);
    fileOutStream.write(myFile.getFileData());
    fileOutStream.flush();
    fileOutStream.close();
   }

  }
  //Set file name to the request object
  request.setAttribute("fileName", fileName);
  System.out.println(fileName);

  return mapping.findForward("success");

}
}



form


package com.song.form;

import javax.servlet.http.HttpServletRequest;
import org.apache.struts.action.ActionErrors;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionMapping;

import org.apache.struts.upload.FormFile;




public class FileUploadAndSaveForm extends ActionForm {



private FormFile theFile;
public FormFile getTheFile() {
  return theFile;
}

public void setTheFile(FormFile theFile) {
  this.theFile = theFile;
}


public ActionErrors validate(ActionMapping mapping,
   HttpServletRequest request) {
  // TODO Auto-generated method stub
  return null;
}


public void reset(ActionMapping mapping, HttpServletRequest request) {
  // TODO Auto-generated method stub
}
}





下面是两个JSP页面



<%@ page language="java" import="java.util.*" pageEncoding="ISO-8859-1"%>
<%
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>
    <base href="<%=basePath%>">
  
    <title>My JSP 'MyJsp.jsp' starting page</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">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->

  </head>

<body bgcolor="white">

<form action="fileUploadAndSave.do" method="post" enctype="multipart/form-data"  >
<input type="hidden" name="id" value="0002.jpg">
File Name <input type="file" name="theFile">
<input type="submit" value="submit">
</form>
</body>



<html>

<head>
<title>Success</title>
</head>

<body>
<%
String fileName=(String)request.getAttribute("fileName");

%>

<p align="center"><font size="5" color="#000080">File Successfully Received</font></p>
<p align="center"><a href="upload/<%=fileName%>">Click here to download</a></p>
<img src="upload/<%=fileName%>">
</body>

</html>


配置文件

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts-config PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 1.2//EN" "http://struts.apache.org/dtds/struts-config_1_2.dtd">

<struts-config>
  <data-sources />
  <form-beans >
    <form-bean name="fileUploadAndSaveForm" type="com.song.form.FileUploadAndSaveForm" />

  </form-beans>

  <global-exceptions />
  <global-forwards />
  <action-mappings >
<action
path="/fileUploadAndSave"
type="com.song.action.FileUploadAndSaveAction"
name="fileUploadAndSaveForm"
scope="request"
validate="true"
input="/FileUploadAndSave.jsp">
<forward name="success" path="/downloaduploadedfile.jsp"/>
</action>
  </action-mappings>

  <message-resources parameter="com.song.ApplicationResources" />

</struts-config>


以上的程序是经过我的测试的

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