hi the code was working fine,i want to choose the file and then upload to database,by using html.whether it is possible to upload larger file size,please explain the code with comment line.
1)page.jsp:
<HTML> <HEAD><TITLE>Display file upload form to the user</TITLE></HEAD> <BODY> <FORM ENCTYPE="multipart/form-data" ACTION="upload.jsp" METHOD=POST> <br><br><br> <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> </BODY> </HTML>
2)upload.jsp:
<%@ page import="java.io.*,java.sql.*" %> <% 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; saveFile="C:/UploadedFiles/"+saveFile; File ff = new File(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 by the name of:</b> <% out.println(saveFile);%></td></tr></table> <% Connection connection = null; String connectionURL = "jdbc:mysql://localhost:3306/test"; ResultSet rs = null; PreparedStatement psmnt = null; FileInputStream fis; try { Class.forName("com.mysql.jdbc.Driver").newInstance(); connection = DriverManager.getConnection(connectionURL, "root", "root"); File f = new File(saveFile); psmnt = connection.prepareStatement("insert into file(file_data) values(?)"); fis = new FileInputStream(f); psmnt.setBinaryStream(1, (InputStream)fis, (int)(f.length())); int s = psmnt.executeUpdate(); if(s>0) { System.out.println("Uploaded successfully !"); } else{ System.out.println("unsucessfull to upload file."); } } catch(Exception e){e.printStackTrace();} } %>
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