我想捕獲該異常,但它不起作用。基本上它跟隨的代碼是call方法createConnection(),用於嘗試連接到數據庫。如果數據庫不存在則拋出兩個異常。我抓住這兩個,但只適用於SQLException中並沒有爲HsqlExceptionCatch HsqlException
try {
createConnection();
} catch (HsqlException | SQLException e1) {
System.out.println("Not exist the DataBase. Creating a new one.");
new CreateDB();
}finally{
try {
createConnection();
} catch (SQLException | org.hsqldb.HsqlException e) {
e.printStackTrace();
System.out.println("Some big error ocurred. Please contact me.");
System.exit(0);
}
}
從的createConnection(代碼)
和例外是
2015-04-17T15:12:37.834+0100 SEVERE could not reopen database
org.hsqldb.HsqlException: Database does not exists: db\dogsRus
at org.hsqldb.error.Error.error(Unknown Source)
at org.hsqldb.error.Error.error(Unknown Source)
at org.hsqldb.persist.Logger.open(Unknown Source)
at org.hsqldb.Database.reopen(Unknown Source)
at org.hsqldb.Database.open(Unknown Source)
at org.hsqldb.DatabaseManager.getDatabase(Unknown Source)
at org.hsqldb.DatabaseManager.newSession(Unknown Source)
at org.hsqldb.jdbc.JDBCConnection.<init>(Unknown Source)
at org.hsqldb.jdbc.JDBCDriver.getConnection(Unknown Source)
at org.hsqldb.jdbc.JDBCDriver.connect(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
at ac.uk.jov2.dogsRus.database.DataBaseUtil.createConnection(DataBaseUtil.java:90)
at ac.uk.jov2.dogsRus.database.DataBaseUtil.<init>(DataBaseUtil.java:54)
at ac.uk.jov2.dogsRus.database.DataBase.<init>(DataBase.java:16)
at ac.uk.jov2.dogsRus.Application.<init>(Application.java:28)
at ac.uk.jov2.dogsRus.Application.main(Application.java:388)
你怎麼知道它不是逮住甚至printstrace將打印strace的,你在做代碼system.exit其停止程序。 – Panther
'HsqlException'和'org.hsqldb.HsqlException'是同一個類嗎?你對'HsqlException'的輸入是什麼意思? –
你沒有收到任何編譯錯誤?我沒有明白你爲什麼要調用createConnection();在頂部嘗試塊,也在最後的嘗試塊? – Bikku