Comment utiliser un fichier JAR exécutable dans mon projet?

Question

J'ai créé un fichier .jar qui contient mon certificat numérique signé et je veux utiliser ce fichier dans mon projet, comment puis-je l'utiliser actuellement dans & dossier JAVA_HOME/jre7/lib/security.

Merci pour votre aide à l'avance :).

Answer 1

Si le JAR est sur votre chemin de classe, et le fichier est "foo.cert" assis à la racine, il suffit de ce ...

InputStream is = this.getClass().getResourceAsStream("/foo.cert"); 
CertificateFactory factory = CertificateFactory.getInstance("X.509"); 
X509Certificate cert = (X509Certificate) factory.generateCertificate(is); 

https://stackoverflow.com/a/4548791/791406

Answer 2

static Connection DBConnectionstring() 
    {  
     Connection con = null; 
     String conUrl = "jdbc:sqlserver://localhost:1433; databaseName=paytest; user=My-PC; password=; integratedSecurity=true; encrypt=true; trustStore=truststore.jks;trustStorePassword=pass; hostNameInCertificate=certificatekey;"; 

     try 
     { 
       con = DriverManager.getConnection(conUrl);     
       JOptionPane.showMessageDialog(null,"Connection is open!","Connection",JOptionPane.WARNING_MESSAGE); 

       } 
     catch (SQLException e) 
     { 

      e.printStackTrace(); 
     }  
     return con; 

    }//connection string method ends 

Et voici la classe où j'ai une chaîne de connexion et d'autres commandes sql

import java.sql.Connection; 
import java.sql.DriverManager; 
import java.sql.ResultSet; 
import java.sql.SQLException; 
import java.sql.Statement; 
import java.applet.*; 
import java.awt.*; 
import java.awt.event.*; 
import javax.net.ssl.*; 
import java.io.*; 
import java.net.*; 
import java.security.*; 

import javax.swing.JOptionPane; 
public abstract class ConnectionDB 
{ 


    public static void main(String[] args) 
    { 

     try {       
      insertRecordIntoDbUserTable(); 
      selectfromdb(); 
     } 
     catch (SQLException e) 
     { 

      System.out.println(e.getMessage()); 

     } 
} 

    private static void GuiContain() 
    { 

    } 

    private static void insertRecordIntoDbUserTable() throws SQLException 
    { 
     Connection con = null; 
     Statement statement = null; 
     String insertTableSQL = "INSERT INTO LoginDetails" + "(Username, Password) " + "VALUES" + "('username','pass1')"; 
     try 
     { 
      con = DBConnectionstring(); 
      statement = con.createStatement(); 
      System.out.println(insertTableSQL);   
      statement.executeUpdate(insertTableSQL);    
      //System.out.println("Record's inserted into Login Details table!"); 
      JOptionPane.showMessageDialog(null,"Your Data has been Inserted","Data Inserted",JOptionPane.WARNING_MESSAGE); 
     } 
     catch (SQLException e) 
     { 

      System.out.println(e.getMessage()); 
     } 
     finally 
     { 

      if (statement != null) 
      { 
        statement.close(); 
       //System.out.println("XXXXX...Statement is terminated..XXXXX"); 
       JOptionPane.showMessageDialog(null,"Statement is closed","Statement",JOptionPane.WARNING_MESSAGE); 
      } 

      if (con != null) 
      { 
       con.close(); 
       //System.out.println("Connection is Closed!!.."); 
       JOptionPane.showMessageDialog(null,"Connection is closed!","Connection",JOptionPane.WARNING_MESSAGE); 
      } 

     } 


    } 

    private static void selectfromdb() throws SQLException 
    {  
     Statement stmt = DBConnectionstring().createStatement(); 
     ResultSet rs = stmt.executeQuery("SELECT Username,Password FROM LoginDetails"); 
     while (rs.next()) 
     { 
       String lastName = rs.getString("Username"); 
       String Pass = rs.getString("Password"); 
       System.out.println(lastName + "" + Pass + "\n"); 

      }  
    } 

    static Connection DBConnectionstring() 
    {  
     Connection con = null; 
     String conUrl = "jdbc:sqlserver://localhost:1433; databaseName=paytest; user=my-PC; password=; integratedSecurity=true;"; 

     try 
     { 
       con = DriverManager.getConnection(conUrl); 

       JOptionPane.showMessageDialog(null,"Connection is open!","Connection",JOptionPane.WARNING_MESSAGE); 

       } 
     catch (SQLException e) 
     { 

      e.printStackTrace(); 
     }  
     return con; 

    } 


    }