如何在播放框架中清除/删除（功能）测试的数据库内容答案

【问题标题】：how to purge/delete database-contens for (functional) tests in playframework如何在播放框架中清除/删除（功能）测试的数据库内容
【发布时间】：2012-03-15 11:53:22
【问题描述】：

播放框架：1.2.3

嗨，

我正在尝试使用 play 的装置来清除我的数据库。但是，我尝试这样做时遇到了一些问题。

首先，Fixtures.deleteDatabase() 会删除整个数据库，并且 play 不会在另一个测试中重新创建它（我也没有发现任何事情要做。

第二，尝试 deleteAllModules() 我得到一个例外，任何模型播放都试图删除：

java.sql.SQLException: Lock wait timeout exceeded; try restarting

这些模型是在测试期间使用普通 Model.save() 创建的。我想 - 再一次 - 交易以某种方式进入我的方式。但是，查看数据库，所有模型都会被持久化。

@After
public void tearDown() throws InterruptedException, ExecutionException {
    new Job() {
        @Override
        public void doJob() throws Exception {
            Logger.debug("[SetupUtils.createClearDBJob().new Job() {...}] Deleting database");
            Fixtures.deleteAllModels();
            //              Fixtures.delete()
            //              Fixtures.deleteDatabase();
        }
    }.now().get();
}

全栈跟踪

ERROR 563 :play#niceThrowable - While deleting class models.DropboxFolder instances
    javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: could not execute update query
    at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1214)
    at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1147)
    at org.hibernate.ejb.AbstractEntityManagerImpl.throwPersistenceException(AbstractEntityManagerImpl.java:1224)
    at org.hibernate.ejb.AbstractQueryImpl.executeUpdate(AbstractQueryImpl.java:108)
    at play.db.jpa.JPAPlugin$JPAModelLoader.deleteAll(JPAPlugin.java:478)
    at play.test.Fixtures.delete(Fixtures.java:72)
    at play.test.Fixtures.delete(Fixtures.java:92)
    at play.test.Fixtures.deleteAllModels(Fixtures.java:104)
    at mashpan.utilities.SetupUtils$2.doJob(SetupUtils.java:44)
    at play.jobs.Job.doJobWithResult(Job.java:50)
    at play.jobs.Job.call(Job.java:146)
    at play.jobs.Job$1.call(Job.java:66)
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
    at java.util.concurrent.FutureTask.run(FutureTask.java:166)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:165)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
    at java.lang.Thread.run(Thread.java:679)
Caused by: org.hibernate.exception.GenericJDBCException: could not execute update query
    at org.hibernate.exception.SQLStateConverter.handledNonSpecificException(SQLStateConverter.java:140)
    at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:128)
    at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66)
    at org.hibernate.hql.ast.exec.BasicExecutor.execute(BasicExecutor.java:110)
    at org.hibernate.hql.ast.QueryTranslatorImpl.executeUpdate(QueryTranslatorImpl.java:421)
    at org.hibernate.engine.query.HQLQueryPlan.performExecuteUpdate(HQLQueryPlan.java:283)
    at org.hibernate.impl.SessionImpl.executeUpdate(SessionImpl.java:1288)
    at org.hibernate.impl.QueryImpl.executeUpdate(QueryImpl.java:117)
    at org.hibernate.ejb.QueryImpl.internalExecuteUpdate(QueryImpl.java:188)
    at org.hibernate.ejb.AbstractQueryImpl.executeUpdate(AbstractQueryImpl.java:99)
    ... 15 more
Caused by: java.sql.SQLException: Lock wait timeout exceeded; try restarting transaction
    at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1073)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3593)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3525)
    at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1986)
    at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2140)
    at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2626)
    at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:2111)
    at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2407)
    at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2325)
    at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2310)
    at org.hibernate.hql.ast.exec.BasicExecutor.execute(BasicExecutor.java:101)
    ... 21 more
ERROR 563 :play#niceThrowable - While deleting class models.User instances
    javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: could not execute update query
    at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1214)
    at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1147)
    at org.hibernate.ejb.AbstractEntityManagerImpl.throwPersistenceException(AbstractEntityManagerImpl.java:1224)
    at org.hibernate.ejb.AbstractQueryImpl.executeUpdate(AbstractQueryImpl.java:108)
    at play.db.jpa.JPAPlugin$JPAModelLoader.deleteAll(JPAPlugin.java:478)
    at play.test.Fixtures.delete(Fixtures.java:72)
    at play.test.Fixtures.delete(Fixtures.java:92)
    at play.test.Fixtures.deleteAllModels(Fixtures.java:104)
    at mashpan.utilities.SetupUtils$2.doJob(SetupUtils.java:44)
    at play.jobs.Job.doJobWithResult(Job.java:50)
    at play.jobs.Job.call(Job.java:146)
    at play.jobs.Job$1.call(Job.java:66)
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
    at java.util.concurrent.FutureTask.run(FutureTask.java:166)
    at 


java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:165)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
    at java.lang.Thread.run(Thread.java:679)
Caused by: org.hibernate.exception.GenericJDBCException: could not execute update query
    at org.hibernate.exception.SQLStateConverter.handledNonSpecificException(SQLStateConverter.java:140)
    at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:128)
    at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66)
    at org.hibernate.hql.ast.exec.BasicExecutor.execute(BasicExecutor.java:110)
    at org.hibernate.hql.ast.QueryTranslatorImpl.executeUpdate(QueryTranslatorImpl.java:421)
    at org.hibernate.engine.query.HQLQueryPlan.performExecuteUpdate(HQLQueryPlan.java:283)
    at org.hibernate.impl.SessionImpl.executeUpdate(SessionImpl.java:1288)
    at org.hibernate.impl.QueryImpl.executeUpdate(QueryImpl.java:117)
    at org.hibernate.ejb.QueryImpl.internalExecuteUpdate(QueryImpl.java:188)
    at org.hibernate.ejb.AbstractQueryImpl.executeUpdate(AbstractQueryImpl.java:99)
    ... 15 more
Caused by: java.sql.SQLException: Lock wait timeout exceeded; try restarting transaction
    at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1073)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3593)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3525)
    at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1986)
    at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2140)
    at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2626)
    at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:2111)
    at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2407)
    at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2325)
    at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2310)
    at org.hibernate.hql.ast.exec.BasicExecutor.execute(BasicExecutor.java:101)
    ... 21 more

【问题讨论】：

你的问题到底是什么，你必须首先 deleteDatabase 删除数据库中的所有内容，然后使用 Fixtures.loadModels 创建数据：你还需要什么？
Fixtures.deleteDatabase() 会删除整个数据库，并且 play 不会在下一次测试中重新创建它，因此加载模型也会失败。所以我不能那样做。我正在寻找一种方法来删除所有表中的所有行，但没有别的。另一种方法是删除所有表，甚至删除整个数据库，然后让游戏重新创建它。但是，没有找到方法来做到这一点

标签： java playframework fixtures sqlexception

【解决方案1】：

您可以尝试在 Bootstrap 中设置创建/删除操作，并检查是否 Play!正在测试模式或生产模式下运行。

@OnApplicationStart
public class Bootstrap extends Job {

  public void doJob() {
    if (Play.mode == Play.Mode.DEV) {
        DropboxFolder.deleteAll(); // delete 
        Fixtures.load("samples_data.yml"); // recreate 
    }
  }
}

【讨论】：