slt j'ai essayé de run mon application et j'ai un nouveau erreur :
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Exception in thread "main" com.microsoft.sqlserver.jdbc.SQLServerException: Échec de la connexion TCP/IP à l'hôte . java.net.ConnectException: Connection refused: connect
at com.microsoft.sqlserver.jdbc.SQLServerException.makeFromDriverError(Unknown Source)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.connectHelper(Unknown Source)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.loginWithoutFailover(Unknown Source)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.connect(Unknown Source)
at com.microsoft.sqlserver.jdbc.SQLServerDriver.connect(Unknown Source)
at java.sql.DriverManager.getConnection(DriverManager.java:582)
at java.sql.DriverManager.getConnection(DriverManager.java:207)
at TestJDBC1.Ajouter(TestJDBC1.java:31)
at TestJDBC1.main(TestJDBC1.java:149)
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merci d'avance