我可以使用SQL Manager Studio连接到我的数据库但是当我尝试与TALEND建立数据库连接时，连接不会发生。我明白了：
Echec de la connexion Vous devez modifier les paramètres de la base de données.
java.lang.RuntimeException: java.sql.SQLException: Échec de l'ouverture de session de l'utilisateur 'dwh_user'.
at org.talend.core.model.metadata.builder.database.JDBCDriverLoader.getConnection(JDBCDriverLoader.java:164)
at org.talend.core.model.metadata.builder.database.ExtractMetaDataUtils.connect(ExtractMetaDataUtils.java:1054)
at org.talend.core.model.metadata.builder.database.ExtractMetaDataFromDataBase.testConnection(ExtractMetaDataFromDataBase.java:311)
at org.talend.repository.ui.utils.ManagerConnection.check(ManagerConnection.java:272)
at org.talend.repository.ui.wizards.metadata.connection.database.DatabaseForm$26.runWithCancel(DatabaseForm.java:2335)
at org.talend.repository.ui.wizards.metadata.connection.database.DatabaseForm$26.runWithCancel(DatabaseForm.java:1)
at org.talend.repository.ui.dialog.AProgressMonitorDialogWithCancel$1.runnableWithCancel(AProgressMonitorDialogWithCancel.java:77)
at org.talend.repository.ui.dialog.AProgressMonitorDialogWithCancel$ARunnableWithProgressCancel$1.call(AProgressMonitorDialogWithCancel.java:161)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.sql.SQLException: Échec de l'ouverture de session de l'utilisateur 'dwh_user'.
at net.sourceforge.jtds.jdbc.SQLDiagnostic.addDiagnostic(SQLDiagnostic.java:368)
at net.sourceforge.jtds.jdbc.TdsCore.tdsErrorToken(TdsCore.java:2820)
at net.sourceforge.jtds.jdbc.TdsCore.nextToken(TdsCore.java:2258)
at net.sourceforge.jtds.jdbc.TdsCore.login(TdsCore.java:603)
at net.sourceforge.jtds.jdbc.ConnectionJDBC2.<init>(ConnectionJDBC2.java:345)
at net.sourceforge.jtds.jdbc.ConnectionJDBC3.<init>(ConnectionJDBC3.java:50)
at net.sourceforge.jtds.jdbc.Driver.connect(Driver.java:184)
at org.talend.core.model.metadata.builder.database.DriverShim.connect(DriverShim.java:41)
at org.talend.core.model.metadata.builder.database.JDBCDriverLoader.getConnection(JDBCDriverLoader.java:155)
... 9 more
答案 0 :(得分：0)
如果不检查是否已放置JDBC驱动程序，是否为数据库放置了JDBC驱动程序，除此之外还检查端口号。