21
I have three code file in which two are the jsp file and one servlet file created as follow :
servlet file UploadServlet.java
package net.codejava.servlet;
import java.io.File;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.annotation.MultipartConfig;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.Part;
@WebServlet("/UploadServlet")
@MultipartConfig(fileSizeThreshold=1024*1024*2, // 2MB
maxFileSize=1024*1024*10, // 10MB
maxRequestSize=1024*1024*50) // 50MB
public class UploadServlet extends HttpServlet {
/**
* Name of the directory where uploaded files will be saved, relative to
* the web application directory.
*/
private static final String SAVE_DIR = "uploadFiles";
/**
* handles file upload
*/
protected void doPost(HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException {
// gets absolute path of the web application
String appPath = request.getServletContext().getRealPath("");
// constructs path of the directory to save uploaded file
String savePath = appPath + File.separator + SAVE_DIR+ File.separator +"kala";
// creates the save directory if it does not exists
File fileSaveDir = new File(savePath);
if (!fileSaveDir.exists()) {
fileSaveDir.mkdir();
}
System.out.println(savePath);
//savePath="C:\\Users\\SANJAY GUPTA\\Downloads\\eclipse";
for (Part part : request.getParts()) {
String fileName = extractFileName(part);
// refines the fileName in case it is an absolute path
fileName = new File(fileName).getName();
part.write(savePath + File.separator + fileName);
}
request.setAttribute("message", "Upload has been done successfully!");
getServletContext().getRequestDispatcher("/message.jsp").forward(
request, response);
}
/**
* Extracts file name from HTTP header content-disposition
*/
private String extractFileName(Part part) {
String contentDisp = part.getHeader("content-disposition");
String[] items = contentDisp.split(";");
for (String s : items) {
if (s.trim().startsWith("filename")) {
return s.substring(s.indexOf("=") + 2, s.length()-1);
}
}
return "";
}
}
first jsp file index.jsp
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!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=ISO-8859-1">
<title>File Upload</title>
</head>
<body>
<center>
<h1>File Upload</h1>
<form method="post" action="UploadServlet"
enctype="multipart/form-data">
Select file to upload: <input type="file" name="file" size="60" /><br />
<br /> <input type="submit" value="Upload" />
</form>
</center>
</body>
</html>
second jsp file message.jsp
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!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=ISO-8859-1">
<title>Upload</title>
</head>
<body>
<h2>${requestScope.message}</h2>
<%@ page import="java.io.File"%>
<%
String SAVE_DIR = "uploadFiles";String appPath = request.getServletContext().getRealPath("");
String savePath = appPath + File.separator + SAVE_DIR+ File.separator +"kala"+ File.separator;
out.write("<h3>This is the Profile Picture</h3><br><br><button type=\"submit\" name=\"img\">"+
"<img src=\""+savePath+"333.jpg\" style=\"width:304px;height:228px;\">"+
"</button>");
%>
</body>
</html>
to run these files code I am using eclipse IDE, inside eclipse IDE I am able to view the 333.jpg image and able to upload other file, but when I copy the local host URL from eclipse and running the program by using chrome browser I am able to upload file but can not able to view the 333.jpg image file which is uploaded already into given path.
I want to know why that is happening and what is the solution for it?
