H2连接失败

Question

I'm trying to connect to a local H2 database, using the simple code :

    Class.forName("org.h2.Driver");
    Connection conn = DriverManager.getConnection("jdbc:h2:~/test", "sa", "");

On the other hand, I also connect to a distant Oracle server with its own jdbc driver. In my understanding, both can live together since the jdbc drivers are different and the correct one is used depending on the connection url. So this should not be the source of my problem.

It fails with the following error :

org.h2.jdbc.JdbcSQLException: File corrupted while reading record: "[16] stream data key:7 pos:11 remaining:0". Possible solution: use the recovery tool [90030-190]
    at org.h2.message.DbException.getJdbcSQLException(DbException.java:345)
    at org.h2.message.DbException.get(DbException.java:179)
    at org.h2.message.DbException.get(DbException.java:155)
    at org.h2.index.PageBtreeIndex.getPage(PageBtreeIndex.java:156)
    at org.h2.index.PageBtreeIndex.<init>(PageBtreeIndex.java:69)
    at org.h2.table.RegularTable.addIndex(RegularTable.java:234)
    at org.h2.store.PageStore.addMeta(PageStore.java:1738)
    at org.h2.store.PageStore.readMetaData(PageStore.java:1637)
    at org.h2.store.PageStore.recover(PageStore.java:1405)
    at org.h2.store.PageStore.openExisting(PageStore.java:367)
    at org.h2.store.PageStore.open(PageStore.java:288)
    at org.h2.engine.Database.getPageStore(Database.java:2464)
    at org.h2.engine.Database.open(Database.java:672)
    at org.h2.engine.Database.openDatabase(Database.java:269)
    at org.h2.engine.Database.<init>(Database.java:263)
    at org.h2.engine.Engine.openSession(Engine.java:65)
    at org.h2.engine.Engine.openSession(Engine.java:175)
    at org.h2.engine.Engine.createSessionAndValidate(Engine.java:153)
    at org.h2.engine.Engine.createSession(Engine.java:136)
    at org.h2.engine.Engine.createSession(Engine.java:28)
    at org.h2.engine.SessionRemote.connectEmbeddedOrServer(SessionRemote.java:349)
    at org.h2.jdbc.JdbcConnection.<init>(JdbcConnection.java:107)
    at org.h2.jdbc.JdbcConnection.<init>(JdbcConnection.java:91)
    at org.h2.Driver.connect(Driver.java:72)
    at java.sql.DriverManager.getConnection(DriverManager.java:664)
    at java.sql.DriverManager.getConnection(DriverManager.java:247)

I can still connect using the web console that runs on port 8082.

Answer 1

好吧，我找到了解决问题的方法：将连接网址更改为

"jdbc:h2:tcp://localhost/~/test"

Answer 2

According to H2 Features • Database URL Overview , there're many available URL expressions, here're some examples :

• Embedded (local) connection:
  • jdbc:h2:~/test
  • jdbc:h2:file:/data/sample
  • jdbc:h2:file:C:/data/sample (Windows only)
• In-memory (named):
  • jdbc:h2:mem:test_mem
• Server mode (remote connections) using TCP/IP:
  • jdbc:h2:tcp://localhost/~/test
  • jdbc:h2:tcp://dbserv:8084/~/sample
  • jdbc:h2:tcp://localhost/mem:test
• ...

There're many others, please check the above link to see the complete list.