How to upload files on Amazon s3 AWS in java

What is Amazon s3 AWS

package awss3app;

import java.io.File;

import java.io.IOException;

import java.io.InputStream;

import java.io.InputStreamReader;

import java.io.BufferedReader;

import com.amazonaws.regions.Region;

import com.amazonaws.regions.Regions;

import com.amazonaws.auth.BasicAWSCredentials;

import com.amazonaws.services.s3.S3ClientOptions;

import com.amazonaws.auth.AWSCredentials;

import com.amazonaws.services.s3.AmazonS3;

import com.amazonaws.services.s3.AmazonS3Client;

import com.amazonaws.ClientConfiguration;

import com.amazonaws.AmazonClientException;

import com.amazonaws.AmazonServiceException;

import com.amazonaws.auth.profile.ProfileCredentialsProvider;

import com.amazonaws.services.s3.AmazonS3;

import com.amazonaws.services.s3.AmazonS3Client;

import com.amazonaws.services.s3.model.PutObjectRequest;

import com.amazonaws.services.s3.model.GetObjectRequest;

import com.amazonaws.services.s3.model.S3Object;

public class S3Sample {

    private static String bucketName     = "purgecoveringletter"; 

    private static String keyId   = "ASASASXIQBFDERREWWW";

    private static String keyName = "wew23434cb/0KBRvubU+vqwqqw223";

    //private static String END_POINT_URL = "http://s3-ap-southeast-1.amazonaws.com";

    private static String END_POINT_URL = "http://s3.amazonaws.com";

    private static String S3_CACHE="60";

    static String fileName = "images.jpg";

    public static void main(String[] args) throws IOException {

    AWSCredentials credentials = new BasicAWSCredentials(keyId,keyName);

    java.security.Security.setProperty("networkaddress.cache.ttl", S3_CACHE);

    AmazonS3 s3Client = new AmazonS3Client(credentials);

    Region southEast1 = Region.getRegion(Regions.AP_SOUTHEAST_1);

    //Region res = Region.getRegion(Regions. "ap-south-1");

    s3Client.setRegion(southEast1);

    s3Client.setEndpoint(END_POINT_URL);

    

    ClientConfiguration clientConfiguration = new ClientConfiguration();

    clientConfiguration.setSignerOverride("AWSS3V4SignerType");

    //s3Client.setEndpoint("http://s3.amazonaws.com");

    try {

        System.out.println("Uploading a new object to S3 from a file\n");

        //File file = new File(uploadFileName);

        // Upload file

        //s3Client.putObject(new PutObjectRequest(bucketName, keyName, file));

        s3Client.putObject(new PutObjectRequest(bucketName, fileName,new File("G:\\images.jpg")));

        GetObjectRequest rangeObjectRequest = new GetObjectRequest(bucketName, keyName);

        S3Object objectPortion = s3Client.getObject(rangeObjectRequest);

        System.out.println("Printing bytes retrieved:");

        displayTextInputStream(objectPortion.getObjectContent());

    } catch (AmazonServiceException ase) {

        System.out.println("Caught an AmazonServiceException, which " +

                   "means your request made it " +

                                       "to Amazon S3, but was rejected with an error response" +

                   " for some reason.");

        System.out.println("Error Message:    " + ase.getMessage());

        System.out.println("HTTP Status Code: " + ase.getStatusCode());

        System.out.println("AWS Error Code:   " + ase.getErrorCode());

        System.out.println("Error Type:       " + ase.getErrorType());

        System.out.println("Request ID:       " + ase.getRequestId());

    } catch (AmazonClientException ace) {

        System.out.println("Caught an AmazonClientException, which " +

                   "means the client encountered " +

                                       "an internal error while trying to " +

                                       "communicate with S3, " +

                   "such as not being able to access the network.");

        System.out.println("Error Message: " + ace.getMessage());

    }

    }

    private static void displayTextInputStream(InputStream input)

    throws IOException {

    // Read one text line at a time and display.

    BufferedReader reader = new BufferedReader(new InputStreamReader(input));

    while (true) {

        String line = reader.readLine();

        if (line == null) break;

        System.out.println("    " + line);

    }

    System.out.println();       

    }

}

Dependency jars

After upload the file you can check S3 Browser for uploaded files

How to upload multiple file using jsp

save as 'img.jsp'

<!DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

<head>

    <style type="text/css">

        body

        {

            font-family: Arial;

            font-size: 10pt;

        }

    </style>

    <script language="javascript" type="text/javascript">

       function chkFile(){         

      var fileChk =  document.getElementById("fileupload").value;

           if(fileChk==null || fileChk==""){

            alert("Please upload any file !");

           return false;

           }

       }

        window.onload = function () {

            var fileUpload = document.getElementById("fileupload");

            fileUpload.onchange = function () {

                if (typeof (FileReader) != "undefined") {

                    var dvPreview = document.getElementById("dvPreview");

                    dvPreview.innerHTML = "";

                    var regex = /^([a-zA-Z0-9\s_\\.\-:])+(.jpg|.jpeg|.gif|.png|.pdf|.xls|.xlsx|.doc|.docx)$/;

                    for (var i = 0; i < fileUpload.files.length; i++) {

                        var file = fileUpload.files[i];

                        if (regex.test(file.name.toLowerCase())) {

                            var reader = new FileReader();

                            reader.onload = function (e) {

                                var img = document.createElement("IMG");

                                img.height = "100";

                                img.width = "100";

                                img.src = e.target.result;

                                dvPreview.appendChild(img);

//alert("img >> "+file.name+img);

                            }

                            reader.readAsDataURL(file);

                        } else {

                            alert(file.name + " is not a valid image file.");

                            dvPreview.innerHTML = "";

                            document.getElementById("fileupload").value="";

                            return false;

                        }

                    }

                } else {

                    alert("This browser does not support HTML5 FileReader.");

                }

            }

        };

    </script>

</head>

<body>

 <form action="upload_file_multipale.jsp" method="post" enctype="multipart/form-data" name="form1" id="form1">

    <div>

        <input id="fileupload" name="file" type="file" multiple="multiple" />

        <hr />

        <b>Live Preview</b>

        <br />

        <br />

        <div id="dvPreview">

        </div>

           <input type="submit" name="Submit" value="Submit files" onClick="chkFile();" />

    </div>

    </form>

</body>

</html>

save as 'upload_file_multipale.jsp'

   <%@ page import="java.util.List" %>

   <%@ page import="java.util.Iterator" %>

   <%@ page import="java.io.File" %>

   <%@ page import="org.apache.commons.fileupload.servlet.ServletFileUpload"%>

   <%@ page import="org.apache.commons.fileupload.disk.DiskFileItemFactory"%>

   <%@ page import="org.apache.commons.fileupload.*"%>

   <%@ page contentType="text/html;charset=UTF-8" language="java" %>

   <center><table border="2">

        <tr><td><h1>Your files  uploaded </h1></td></tr>

   <%

 boolean isMultipart = ServletFileUpload.isMultipartContent(request);

 if (!isMultipart) {

 } else {

  FileItemFactory factory = new DiskFileItemFactory();

  ServletFileUpload upload = new ServletFileUpload(factory);

  List items = null;

  try {

  items = upload.parseRequest(request);

  } catch (FileUploadException e) {

  e.printStackTrace();

  }

  Iterator itr = items.iterator();

  while (itr.hasNext()) {

  FileItem item = (FileItem) itr.next();

  if (item.isFormField()) {

  } else {

  try {

  String itemName = item.getName();

  File savedFile = new File("G:/uploadedFiles/"+itemName);

  item.write(savedFile);  

  out.println("<tr><td><b>Your file has been saved at the loaction:</b></td></tr><tr><td><b>"+config.getServletContext().getRealPath("/")+"uploadedFiles"+"\\"+itemName+"</td></tr>");

  } catch (Exception e) {

  e.printStackTrace();

  }

  }

  }

   }

   %>

    </table>

   </center>

How to Encrypt and Decrypt file using java code

import java.io.File;

import java.io.FileInputStream;

import java.io.FileOutputStream;

import java.security.Key;

import javax.crypto.Cipher;

import javax.crypto.spec.SecretKeySpec;

public class EncriptDecrypt {

    

    private static final String ALGORITHM = "AES";

    private static final String TRANSFORMATION = "AES";

    

    public static void main(String args[]) throws Exception{

        

       EncriptDecrypt.decrypt(new File("c:\\encryptFile\\encr.xls"), new File("c:\\decryptFile\\decr.xls"));  

       EncriptDecrypt.encrypt(new File("c:\\test.xls"), new File("c:\\decryptFile\\encr.xls"));  

    }

    

       public static void encrypt(File inputFile, File outputFile)

            throws Exception {

        doCrypto(Cipher.ENCRYPT_MODE, inputFile, outputFile);

    }

    public static void decrypt(File inputFile, File outputFile)

            throws Exception {

        doCrypto(Cipher.DECRYPT_MODE, inputFile, outputFile);

    }

    

    private static void doCrypto(int cipherMode, File inputFile,

            File outputFile) throws Exception {

        try {

            byte[] keyLength = new byte[16];

            Key secretKey = new SecretKeySpec(keyLength, ALGORITHM);

            Cipher cipher = Cipher.getInstance(TRANSFORMATION);

            cipher.init(cipherMode, secretKey);

            FileInputStream inputStream = new FileInputStream(inputFile);

            byte[] inputBytes = new byte[(int) inputFile.length()];

            inputStream.read(inputBytes);

            byte[] outputBytes = cipher.doFinal(inputBytes);

            FileOutputStream outputStream = new FileOutputStream(outputFile);

            outputStream.write(outputBytes);

            inputStream.close();

            outputStream.close();

        } catch (Exception ex) {

            ex.printStackTrace();

        }

    }

    

}

ITMS emailschedular

package com.itms.resource;

import java.text.SimpleDateFormat;

import java.util.Calendar;

import java.util.Date;

import java.util.HashMap;

import java.util.Properties;

import java.util.ResourceBundle;

import java.util.Vector;

import javax.mail.Authenticator;

import javax.mail.Message;

import javax.mail.MessagingException;

import javax.mail.PasswordAuthentication;

import javax.mail.Session;

import javax.mail.Transport;

import javax.mail.internet.AddressException;

import javax.mail.internet.InternetAddress;

import javax.mail.internet.MimeMessage;

import org.apache.log4j.Logger;

import org.quartz.Job;

import org.quartz.JobExecutionContext;

import org.quartz.JobExecutionException;

import com.itms.bo.EmailSchedularBO;

import com.itms.dao.VException;

public class EmailSchedular implements Job{

static final Logger _log=Logger.getLogger(com.itms.resource.EmailSchedular.class);

static ResourceBundle szResBundl = ResourceBundle.getBundle("com/itms/resource/mailProperties");

String message = szResBundl.getString("MESSAGE_EMAIL_SCHEDULAR");

String subject= szResBundl.getString("SUBJECT_EMAIL_SCHEDULAR");

EmailSchedularBO szMailJob7DaysBO;

HashMap szHmap=null;

HashMap szMap=null; 

HashMap szMapW=null;

HashMap mailMap=null;

Vector szVec = null;

Vector szVec1 = null;

SimpleDateFormat sdf = new SimpleDateFormat("yyyy-mm-dd hh:mm:ss");

java.util.Date utildate = new Date();

java.sql.Date sqlDate = new java.sql.Date(utildate.getTime());

Calendar calendar = Calendar.getInstance();

public void execute(JobExecutionContext jExeCtx) throws JobExecutionException {

// TODO Auto-generated method stub

System.out.println("<<< TestSchedular start >>> ");

try {

_log.info("In MailJob7Days Schedular >> job method >> ");

System.out.println("In MailJob7Days Schedular >> job method >> ");

szMailJob7DaysBO = new EmailSchedularBO(); 

szHmap= new HashMap();

mailMap=new HashMap();

szMapW= new HashMap();

szMap= new HashMap();

szVec= new Vector();

szVec1= new Vector();

try{

System.out.println("Email schedular srart for sending Mail ... ");

String toDayDate=sqlDate+"";

System.out.println(toDayDate);

// szHmap.put("", "");

szVec = szMailJob7DaysBO.getApprovedPreClerance(szHmap);

System.out.println("szVec -- "+szVec.size() +" -- "+szVec1.size());

String userName ="";

String submittedDate=""; 

String itms ="";

// System.out.println(szMapW.get("RowNum") +" "+ szMapW.get("alldate"));

// System.out.println(szMap.get("EMAIL_ID")); //APPROVAL_DATE

for(int k=0;k<szVec.size();k++){

szMap = (HashMap) szVec.get(k);

System.out.println("szMap: : "+ szMap);

szVec1 =szMailJob7DaysBO.getWorkingDay(szMap);

System.out.println("szVec1== "+szVec1);

userName =(String) szMap.get("EMPLOYEE_NAME"); 

for(int i=0;i<szVec1.size();i++)

{

szMapW = (HashMap) szVec1.get(i);

System.out.println("alldate  >> "+szMapW.get("alldate"));

}

submittedDate =(String) szMap.get("SUBMITTED_ON");

String date1 = submittedDate;

System.out.println("date1 >>"+date1);

String [] datePass1 = submittedDate.split(" ",0);

                    //System.out.println("datePass1 "+datePass1[0]);

itms =(String) szMap.get("PRE_ITMS_NO");

message = message.replaceAll("#USER#",userName);

message = message.replaceAll("#DATE#",datePass1[0]);

subject = subject.replaceAll("#ITMSNO#",itms);

subject = subject.replaceAll("#DATE#",datePass1[0]);

mailMap.put("ITMS_NO", itms);

mailMap.put("EMP_OS_NAME", userName);

mailMap.put("EMAIL_ID", szMap.get("EMAIL_ID"));

mailMap.put("MESSAGE", " ");

mailMap.put("CCEMAIL", " ");

mailMap.put("EMAIL_DATE", toDayDate);

String [] allDate1 = szMapW.get("alldate").toString().split(" ");

String dt = allDate1[0];

System.out.println(dt+" ================= dt  >> " +toDayDate);

if(dt.equals(toDayDate)){

//EmailSend.sendEmail((String) szMap.get("EMAIL_ID"), "", subject, message);

szMailJob7DaysBO.insertEmailSchedular(mailMap);

}

 }

}catch(Exception ex){

ex.printStackTrace();

System.out.println("MailJob7Days Exception >> "+ex);

} catch (VException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

} catch (Exception e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

}

}

google mail setting

https://www.google.com/settings/security/lesssecureapps

Excel make a query

="INSERT INTO MST_ITMS_ROLE_MAPPING  (EMP_OS_NAME,EMP_CODE,ROLE_ID,MAPPING_ID) VALUES('"&A2&"','"&B2&"','"&C2&"','"&D2&"');"

File upload validation with jquery

<script src="js/jquery-1.8.3.js"></script>

<script type="text/javascript">

    $(function () {

        $('#files').change(

            function () {

                var fileExtension = ['jpeg', 'jpg'];

                if ($.inArray($(this).val().split('.').pop().toLowerCase(), fileExtension) == -1) {

                     //alert("Only '.jpeg','.jpg' formats are allowed.");

                   // $('#files').attr("disabled", true);

                    $('#lblmsg').html("Only '.jpeg','.jpg' formats are allowed.");

$(this).val('');

                }

                else {

                    $('#files').attr("disabled", false);

                    $('#lblmsg').html(" ");

                } 

            })  

    })  

</script>

<form id="form1" action="home.html">

<div>  

File Upload <input type="file" id="files" ></input>

<input type="submit" value="submit" id="btnsubmit"></input>

</div> 

<label id ="lblmsg" style="color:RED">****</label>

</form>