File read via mongodb GridFS - Java Big Data

Java examples for Big Data:MongoDB

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Description

File read via mongodb GridFS

Demo Code


import com.mongodb.DB;
import com.mongodb.MongoClient;
import com.mongodb.gridfs.GridFS;
import com.mongodb.gridfs.GridFSDBFile;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.sql.*;


public class FileSearcher extends javax.swing.JFrame {


    private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton1ActionPerformed
        try {//www  . j  ava  2s  . c  o  m
            MongoClient m = new MongoClient("localhost", 27017);
            DB db = m.getDB("mydb");
            String attachmentName = "Attachment";
            GridFS gfs = new GridFS(db, attachmentName);
            long timeBefore = System.nanoTime();
            GridFSDBFile FileOutput = gfs.findOne(jTextField1.getText());
            long timeAfter = System.nanoTime() - timeBefore;
            FileOutput.writeTo("E:\\" + FileOutput.getFilename());
            jTextField2.setText("" + timeAfter);
        } catch (Exception e) {
            e.printStackTrace();
        }
        // TODO add your handling code here:
    }//GEN-LAST:event_jButton1ActionPerformed


}

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