Descargar documentossssssssssssssssssssssssssssssssss

Source Packages/conexionDB/documentoDB.java

@@ -12,6 +12,7 @@ import java.io.FileNotFoundException;
 import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.InputStream;
+import java.io.OutputStream;
 import java.sql.Connection;
 import java.sql.Date;
 import java.sql.PreparedStatement;
@@ -99,15 +100,22 @@ public class documentoDB {
                 documento.setResumen(rs.getString("resumen"));
                 documento.setFechaCreacion(rs.getDate("fechaCreacion"));
                 documento.setFechaModificacion(rs.getDate("fechaModificacion"));
+                documento.setDocumento(rs.getBlob("documento"));
                 documentos.add(documento);
                 
-                InputStream is =  rs.getBinaryStream("documento");
-                String str = convert(is);
-                new File("temp").mkdir();
-                File file = new File("temp/"+documento.getNombre());
-                FileOutputStream outputStream = new FileOutputStream(file);
-                outputStream.write(str.getBytes());
-                outputStream.close();
+                InputStream is =  documento.getDocumento().getBinaryStream();
+                String ruta = "temp" + File.separator + idNook;
+                new File(ruta).mkdirs();
+                FileOutputStream os = new FileOutputStream(ruta + File.separator + documento.getNombre());
+                byte[] buffer = new byte[1024];
+                int bytesRead;
+                while((bytesRead = is.read(buffer)) !=-1){
+                    os.write(buffer, 0, bytesRead);
+                }
+                is.close();
+                os.flush();
+                os.close();
+
             }
             rs.close();
             ps.close();
@@ -119,17 +127,17 @@ public class documentoDB {
         }
     }
     
-    public static int insertDocu(int idNook, Part documento) throws IOException {
+        public static double borrarArchivo(String nombre, int idNook){
         ConnectionPool pool = ConnectionPool.getInstance();
         Connection connection = pool.getConnection();
         PreparedStatement ps=null;
 
-        String consulta="UPDATE  Documento  SET documento=?  WHERE nook= ?";
+
+        String consulta="DELETE FROM Documento WHERE nombre = ? AND nook = ?";
         try {
             ps =connection.prepareStatement(consulta);
         
-            ps.setBlob(1, documento.getInputStream() ); 
-            
+            ps.setString(1, nombre );
             ps.setInt(2, idNook );
 
             int res = ps.executeUpdate();
@@ -140,38 +148,20 @@ public class documentoDB {
             e.printStackTrace();
             return 0;
         }
-    }
-    
-    private static String convert(InputStream is) {
-        BufferedInputStream bis = new BufferedInputStream(is);
-	ByteArrayOutputStream buf = new ByteArrayOutputStream();
-	int result;
-	String str = null;
-	try {
-            result = bis.read();
 
-            while (result != -1) {
-                buf.write((byte) result);
-                result = bis.read();
-            }
-            str = buf.toString("UTF-8");
-	} catch (IOException e) {
-            e.printStackTrace();
-	}
-	return str;
     }
         
-    public static double borrarArchivo(String nombre, int idNook){
+    public static int insertDocu(int idNook, Part documento) throws IOException {
         ConnectionPool pool = ConnectionPool.getInstance();
         Connection connection = pool.getConnection();
         PreparedStatement ps=null;
         
-
-        String consulta="DELETE FROM Documento WHERE nombre = ? AND nook = ?";
+        String consulta="UPDATE  Documento  SET documento=?  WHERE nook= ?";
         try {
             ps = connection.prepareStatement(consulta);
            
-            ps.setString(1, nombre );
+            ps.setBlob(1, documento.getInputStream() ); 
+            
             ps.setInt(2, idNook);
             
             int res = ps.executeUpdate();
@@ -182,6 +172,5 @@ public class documentoDB {
             e.printStackTrace();
             return 0;
         }
-
     }
 }

Source Packages/servlet/descargarNookSV.java

@@ -6,12 +6,10 @@
 package servlet;
 
 import conexionDB.documentoDB;
-import java.io.BufferedInputStream;
-import java.io.ByteArrayOutputStream;
 import java.io.File;
-import java.io.FileOutputStream;
+import java.io.FileInputStream;
 import java.io.IOException;
-import java.io.InputStream;
+import java.io.OutputStream;
 import java.sql.SQLException;
 import java.util.ArrayList;
 import java.util.logging.Level;
@@ -48,6 +46,43 @@ public class descargarNookSV extends HttpServlet {
         String usuario =  (String) session.getAttribute("usuario");
         int nook = Integer.parseInt(request.getParameter("idNook"));
         ArrayList<Documento> documentos = documentoDB.getFiles(nook);
+        String nombreArchivo = documentos.get(0).getNombre();
+       // String rutaAplicacion = getServletContext().getRealPath("");
+       // String rutaDescarga = rutaAplicacion + File.separator + "temp";
+        String ruta = "temp"+ File.separator + nook + File.separator + nombreArchivo;
+        
+        File file = new File(ruta);
+        OutputStream outStream = null;
+        FileInputStream inputStream = null;
+        System.out.println(file.getName());
+        if(file.exists()){
+            response.setContentType("application/octet-stream");
+            response.setHeader("Content-Disposition","attachment; filename=\"" + file.getName() + "\"");
+            try{
+                outStream = response.getOutputStream();
+                inputStream = new FileInputStream(file);
+                byte[] buffer = new byte[1024*100];
+                int bytesRead = -1;
+                while((bytesRead= inputStream.read(buffer))!=-1){
+                    outStream.write(buffer, 0, bytesRead);
+                }
+
+            } catch(IOException e){
+                e.printStackTrace();
+            } finally{
+                if(inputStream != null) {
+                    inputStream.close();
+                }
+
+                outStream.flush();
+                if(outStream != null){
+                    outStream.close();
+                }
+            }
+        } else{
+            response.setContentType("text/html");
+            response.getWriter().println("<h3>File \"+ fileName +\" Is Not Present .....!</h3>");
+        }
     }
     // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
     /**

web/js/bdFilenook.sql

@@ -17,7 +17,7 @@ CREATE TABLE Usuario(
 	clave VARCHAR(15) NOT NULL,
 	correo VARCHAR(80) NOT NULL,
         valoracionMedia NUMERIC(3,1),
-        imagenPerfil BLOB,
+        imagenPerfil BLOB(5M),
 	PRIMARY KEY (nombreUsuario)
 );
 
@@ -60,7 +60,7 @@ CREATE TABLE Documento(
 	resumen VARCHAR(400),
 	fechaCreacion DATE,
 	fechaModificacion DATE,
-        documento BLOB,
+        documento BLOB(16M),
 	PRIMARY KEY (nook, nombre),
 	CONSTRAINT FK_DOCUMENTO FOREIGN KEY (nook)
 		REFERENCES Nook (idNook)