JUnit测试使用h2数据库的flywaydb

Question

我想JUnit我的迁移。我在内存中使用jdbc:h2:mem:./test作为url设置H2数据库。

迁飞正常连接到数据库，但无法执行sql脚本给我下面的

com.nokia.avalanche.manager.migrations.FlywaydbWrap$MigrationException: Something happened in migration 
at com.nokia.avalanche.manager.migrations.FlywaydbWrap.migrateDB(FlywaydbWrap.java:66) 
at com.nokia.avalanche.manager.databasemanagement.FlywayDbMigrationTest.testIsDbCreated(FlywayDbMigrationTest.java:64) 
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) 
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
at java.lang.reflect.Method.invoke(Method.java:497) 
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50) 
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) 
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47) 
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17) 
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26) 
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27) 
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325) 
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78) 
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57) 
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290) 
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71) 
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288) 
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58) 
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268) 
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26) 
at org.junit.runners.ParentRunner.run(ParentRunner.java:363) 
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50) 
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) 
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459) 
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675) 
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382) 
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192) 
Caused by: org.flywaydb.core.internal.dbsupport.FlywaySqlScriptException: 
Migration V1__Base_version.sql failed 
------------------------------------- 
SQL State : 42000 
Error Code : 42000 
Message : Syntax error in SQL statement "LOCK[*] TABLES ""ENODEB"" WRITE "; SQL statement: 
LOCK TABLES `enodeb` WRITE [42000-187] 
Location : db/migration/V1__Base_version.sql (D:\development\IPSL_source\trunk\myProject\target\classes\db\migration\V1__Base_version.sql) 
Line  : 120 
Statement : LOCK TABLES `enodeb` WRITE 

    at org.flywaydb.core.internal.dbsupport.SqlScript.execute(SqlScript.java:117) 
at org.flywaydb.core.internal.resolver.sql.SqlMigrationExecutor.execute(SqlMigrationExecutor.java:71) 
at org.flywaydb.core.internal.command.DbMigrate$5.doInTransaction(DbMigrate.java:284) 
at org.flywaydb.core.internal.command.DbMigrate$5.doInTransaction(DbMigrate.java:282) 
at org.flywaydb.core.internal.util.jdbc.TransactionTemplate.execute(TransactionTemplate.java:72) 
at org.flywaydb.core.internal.command.DbMigrate.applyMigration(DbMigrate.java:282) 
at org.flywaydb.core.internal.command.DbMigrate.access$800(DbMigrate.java:46) 
at org.flywaydb.core.internal.command.DbMigrate$2.doInTransaction(DbMigrate.java:207) 
at org.flywaydb.core.internal.command.DbMigrate$2.doInTransaction(DbMigrate.java:156) 
at org.flywaydb.core.internal.util.jdbc.TransactionTemplate.execute(TransactionTemplate.java:72) 
at org.flywaydb.core.internal.command.DbMigrate.migrate(DbMigrate.java:156) 
at org.flywaydb.core.Flyway$1.execute(Flyway.java:1059) 
at org.flywaydb.core.Flyway$1.execute(Flyway.java:1006) 
at org.flywaydb.core.Flyway.execute(Flyway.java:1418) 
at org.flywaydb.core.Flyway.migrate(Flyway.java:1006) 
at com.nokia.avalanche.manager.migrations.FlywaydbWrap.migrateDB(FlywaydbWrap.java:63) 
... 27 more 
Caused by: org.h2.jdbc.JdbcSQLException: Syntax error in SQL statement "LOCK[*] TABLES ""ENODEB"" WRITE "; SQL statement: 
LOCK TABLES `enodeb` WRITE [42000-187] 
    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.message.DbException.getSyntaxError(DbException.java:191) 
    at org.h2.command.Parser.getSyntaxError(Parser.java:518) 
    at org.h2.command.Parser.parsePrepared(Parser.java:476) 
    at org.h2.command.Parser.parse(Parser.java:305) 
    at org.h2.command.Parser.parse(Parser.java:281) 
    at org.h2.command.Parser.prepareCommand(Parser.java:242) 
    at org.h2.engine.Session.prepareLocal(Session.java:461) 
    at org.h2.engine.Session.prepareCommand(Session.java:403) 
    at org.h2.jdbc.JdbcConnection.prepareCommand(JdbcConnection.java:1189) 
    at org.h2.jdbc.JdbcStatement.executeInternal(JdbcStatement.java:170) 
    at org.h2.jdbc.JdbcStatement.execute(JdbcStatement.java:158) 
    at org.flywaydb.core.internal.dbsupport.JdbcTemplate.executeStatement(JdbcTemplate.java:238) 
    at org.flywaydb.core.internal.dbsupport.SqlScript.execute(SqlScript.java:114) 
... 42 more 

当我运行与我的真实MySql数据库相同的SQL脚本，它正常工作，没有错误的飞行路线....没有H2支持锁表？

Answer 1

您可能在您的flyway SQL脚本中使用了MySQL命令。我建议添加到您的H2 JDBC url以下字符串：;MODE=MYSQL

如果使用的命令受到H2的MySQL兼容模式的支持，它可能会解决您的问题。如果没有，那么你正在修复，你需要创建H2只有飞行SQL脚本。

请谨慎使用：使用基于H2存储器的数据库和flyway可能会给您的JUnit带来麻烦。如果连接已关闭，则无法重新打开并找回内容。

祝您的实验顺利。

更新：即使使用MODE=MYSQL，LOCK在H2中似乎也不受支持。它可能会确认您需要编写flyway SQL，而不使用MySQL特定的命令。