how to store image upload path to mssql database

hi there!!, i need help in storing the image upload path into the database. basically i just use file select to upload the image from jsp to database. however when i click submit button, the id in the database do increment by 1 however under the image column it state null.

i set my image data type as varchar

this is a sample of my code:

image.jsp

<%-- Document : image Created on : Jul 26, 2012, 9:00:33 PM Author : acer --%>

<%@page contentType="text/html" pageEncoding="UTF-8"%>

<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
        <title>JSP Page</title>
    </head>
    <body>
<FORM ENCTYPE="multipart/form-data" ACTION="image2" METHOD=POST>

<table border="0" bgcolor=#ccFDDEE>
<tr>
<td colspan="2"><B>UPLOAD THE FILE</B><center></td>
</tr>
<tr><td colspan="2" > </td></tr>
<tr><td><b>Choose the file To Upload:</b></td>
    <td><INPUT NAME="FileUpload" TYPE="file" value="./books/"></td>
</tr>
<tr><td colspan="2" > </td></tr>
<tr><td colspan="2"><input type="submit" value="Send File"> </td></tr>
<table>

    </FORM>
    </body>

</html>

image.java(Servlet)

import java.io.IOException;
import java.io.PrintWriter;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.Statement;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

protected void processRequest(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    response.setContentType("text/html;charset=UTF-8");
    PrintWriter out = response.getWriter();
    try {
        String image = request.getParameter("file");


        Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
        String connURL = "jdbc:sqlserver://localhost:1433;"
                + "databaseName=Book Avenue Tables; user=sa; password=12345678;";
        Connection conn = DriverManager.getConnection(connURL);

        Statement stmt = conn.createStatement();

        String sqlStr = "INSERT INTO testimage(testimage)"
                + " VALUES ('" + image + "')";

        int rec = stmt.executeUpdate(sqlStr);
        if (rec > 0) {
           out.println("upload succesffully");






        }
    } catch (Exception e) {
        out.println(e);

    } finally {
        out.close();
    }
}

View Answers

July 27, 2012 at 5:20 PM

Here is a jsp code that allow the user to upload a file and save the file path to database.

1)form.jsp:

<%@ page language="java" %>
<HTML>
<FORM ENCTYPE="multipart/form-data" ACTION="uploadFile.jsp" METHOD=POST>
<center>
<table border="0" bgcolor=#ccFDDEE>
<tr>
<center><td colspan="2" align="center"><B>UPLOAD THE FILE</B><center></td>
</tr>
<tr><td colspan="2" align="center"> </td></tr>
<tr><td><b>Choose the file To Upload:</b></td>
<td><INPUT NAME="file" TYPE="file"></td>
</tr>
<tr><td colspan="2" align="center"> </td></tr>
<tr><td colspan="2" align="center"><input type="submit" value="Send File"> </td></tr>
<table>
</center>
</FORM>
</HTML>

2)uploadFile.jsp:

<%@ page import="java.io.*,java.sql.*,java.util.zip.*" %>
<%
String saveFile="";
String contentType = request.getContentType();
if((contentType != null)&&(contentType.indexOf("multipart/form-data") >= 0)){
DataInputStream in = new DataInputStream(request.getInputStream());
int formDataLength = request.getContentLength();
byte dataBytes[] = new byte[formDataLength];
int byteRead = 0;
int totalBytesRead = 0;
while(totalBytesRead < formDataLength){
byteRead = in.read(dataBytes, totalBytesRead,formDataLength);
totalBytesRead += byteRead;
}
String file = new String(dataBytes);
saveFile = file.substring(file.indexOf("filename=\"") + 10);
saveFile = saveFile.substring(0, saveFile.indexOf("\n"));
saveFile = saveFile.substring(saveFile.lastIndexOf("\\") + 1,saveFile.indexOf("\""));
int lastIndex = contentType.lastIndexOf("=");
String boundary = contentType.substring(lastIndex + 1,contentType.length());
int pos;
pos = file.indexOf("filename=\"");
pos = file.indexOf("\n", pos) + 1;
pos = file.indexOf("\n", pos) + 1;
pos = file.indexOf("\n", pos) + 1;
int boundaryLocation = file.indexOf(boundary, pos) - 4;
int startPos = ((file.substring(0, pos)).getBytes()).length;
int endPos = ((file.substring(0, boundaryLocation)).getBytes()).length;
File ff = new File("C:/UploadedFiles/"+saveFile);
FileOutputStream fileOut = new FileOutputStream(ff);
fileOut.write(dataBytes, startPos, (endPos - startPos));
fileOut.flush();
fileOut.close();
%><br><table border="2"><tr><td><b>You have successfully upload the file:</b>
<%out.println(saveFile);%></td></tr></table>
<%
Connection connection = null;
String connectionURL = "jdbc:mysql://localhost:3306/roseindia";
PreparedStatement psmnt = null;
try{
Class.forName("com.mysql.jdbc.Driver").newInstance();
connection = DriverManager.getConnection(connectionURL, "root", "root");
psmnt = connection.prepareStatement("insert into file(file_path) values(?)");
psmnt.setString(1, ff.getPath());
int s = psmnt.executeUpdate();
if(s>0){
System.out.println("Uploaded successfully !");
}
else{
System.out.println("Error!");
}
 <%
}
catch(Exception e){
    e.printStackTrace();
}

}
%>

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