问答详情
源自:4-8 DAO层单元测试编码和问题排查(上)

大神们帮帮忙啊,卡了整整一周了

八月 14, 2018 2:58:02 下午 org.springframework.test.context.support.DefaultTestContextBootstrapper getDefaultTestExecutionListenerClassNames

信息: Loaded default TestExecutionListener class names from location [META-INF/spring.factories]: [org.springframework.test.context.web.ServletTestExecutionListener, org.springframework.test.context.support.DependencyInjectionTestExecutionListener, org.springframework.test.context.support.DirtiesContextTestExecutionListener, org.springframework.test.context.transaction.TransactionalTestExecutionListener, org.springframework.test.context.jdbc.SqlScriptsTestExecutionListener]

八月 14, 2018 2:58:02 下午 org.springframework.test.context.support.DefaultTestContextBootstrapper getTestExecutionListeners

信息: Using TestExecutionListeners: [org.springframework.test.context.web.ServletTestExecutionListener@340f438e, org.springframework.test.context.support.DependencyInjectionTestExecutionListener@30c7da1e, org.springframework.test.context.support.DirtiesContextTestExecutionListener@5b464ce8, org.springframework.test.context.transaction.TransactionalTestExecutionListener@57829d67, org.springframework.test.context.jdbc.SqlScriptsTestExecutionListener@19dfb72a]

八月 14, 2018 2:58:02 下午 org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions

信息: Loading XML bean definitions from class path resource [spring/spring-dao.xml]

八月 14, 2018 2:58:02 下午 org.springframework.context.support.GenericApplicationContext prepareRefresh

信息: Refreshing org.springframework.context.support.GenericApplicationContext@735b478: startup date [Tue Aug 14 14:58:02 CST 2018]; root of context hierarchy

八月 14, 2018 2:58:02 下午 org.springframework.context.support.PropertySourcesPlaceholderConfigurer loadProperties

信息: Loading properties file from class path resource [jdbc.properties]

八月 14, 2018 2:58:02 下午 com.mchange.v2.log.MLog <clinit>

信息: MLog clients using java 1.4+ standard logging.

八月 14, 2018 2:58:02 下午 com.mchange.v2.c3p0.C3P0Registry banner

信息: Initializing c3p0-0.9.1.2 [built 21-May-2007 15:04:56; debug? true; trace: 10]

14:58:02.821 [main] DEBUG org.apache.ibatis.logging.LogFactory - Logging initialized using 'class org.apache.ibatis.logging.slf4j.Slf4jImpl' adapter.

14:58:02.900 [main] DEBUG org.apache.ibatis.io.ResolverUtil - Class not found: org.jboss.vfs.VFS

14:58:02.900 [main] DEBUG org.apache.ibatis.io.ResolverUtil - JBoss 6 VFS API is not available in this environment.

14:58:02.900 [main] DEBUG org.apache.ibatis.io.ResolverUtil - Class not found: org.jboss.vfs.VirtualFile

14:58:02.901 [main] DEBUG org.apache.ibatis.io.ResolverUtil - VFS implementation org.apache.ibatis.io.JBoss6VFS is not valid in this environment.

14:58:02.902 [main] DEBUG org.apache.ibatis.io.ResolverUtil - Using VFS adapter org.apache.ibatis.io.DefaultVFS

14:58:02.902 [main] DEBUG org.apache.ibatis.io.ResolverUtil - Find JAR URL: file:/Users/wusiyuan/Library/apache-maven-3.5.4/seckill/target/classes/org/seckill/entity

14:58:02.903 [main] DEBUG org.apache.ibatis.io.ResolverUtil - Not a JAR: file:/Users/wusiyuan/Library/apache-maven-3.5.4/seckill/target/classes/org/seckill/entity

14:58:02.952 [main] DEBUG org.apache.ibatis.io.ResolverUtil - Reader entry: Seckill.class

14:58:02.952 [main] DEBUG org.apache.ibatis.io.ResolverUtil - Reader entry: SuccessKilled.class

14:58:02.952 [main] DEBUG org.apache.ibatis.io.ResolverUtil - Listing file:/Users/wusiyuan/Library/apache-maven-3.5.4/seckill/target/classes/org/seckill/entity

14:58:02.953 [main] DEBUG org.apache.ibatis.io.ResolverUtil - Find JAR URL: file:/Users/wusiyuan/Library/apache-maven-3.5.4/seckill/target/classes/org/seckill/entity/Seckill.class

14:58:02.953 [main] DEBUG org.apache.ibatis.io.ResolverUtil - Not a JAR: file:/Users/wusiyuan/Library/apache-maven-3.5.4/seckill/target/classes/org/seckill/entity/Seckill.class

14:58:02.953 [main] DEBUG org.apache.ibatis.io.ResolverUtil - Reader entry: ����1\

14:58:02.954 [main] DEBUG org.apache.ibatis.io.ResolverUtil - Find JAR URL: file:/Users/wusiyuan/Library/apache-maven-3.5.4/seckill/target/classes/org/seckill/entity/SuccessKilled.class

14:58:02.954 [main] DEBUG org.apache.ibatis.io.ResolverUtil - Not a JAR: file:/Users/wusiyuan/Library/apache-maven-3.5.4/seckill/target/classes/org/seckill/entity/SuccessKilled.class

14:58:02.955 [main] DEBUG org.apache.ibatis.io.ResolverUtil - Reader entry: ����1T

14:58:02.955 [main] DEBUG org.apache.ibatis.io.ResolverUtil - Checking to see if class org.seckill.entity.Seckill matches criteria [is assignable to Object]

14:58:02.955 [main] DEBUG org.apache.ibatis.io.ResolverUtil - Checking to see if class org.seckill.entity.SuccessKilled matches criteria [is assignable to Object]

14:58:02.956 [main] DEBUG o.m.spring.SqlSessionFactoryBean - Scanned package: 'org.seckill.entity' for aliases

14:58:02.989 [main] DEBUG o.m.spring.SqlSessionFactoryBean - Parsed configuration file: 'class path resource [mybatis-config.xml]'

14:58:03.038 [main] DEBUG o.m.spring.SqlSessionFactoryBean - Parsed mapper file: 'file [/Users/wusiyuan/Library/apache-maven-3.5.4/seckill/target/classes/mapper/SuccessKilledDao.xml]'

14:58:03.047 [main] DEBUG o.m.spring.SqlSessionFactoryBean - Parsed mapper file: 'file [/Users/wusiyuan/Library/apache-maven-3.5.4/seckill/target/classes/mapper/SeckillDao.xml]'

14:58:03.079 [main] DEBUG org.mybatis.spring.SqlSessionUtils - Creating a new SqlSession

14:58:03.084 [main] DEBUG org.mybatis.spring.SqlSessionUtils - SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@1a75e76a] was not registered for synchronization because synchronization is not active

八月 14, 2018 2:58:03 下午 com.mchange.v2.c3p0.impl.AbstractPoolBackedDataSource getPoolManager

信息: Initializing c3p0 pool... com.mchange.v2.c3p0.ComboPooledDataSource [ acquireIncrement -> 3, acquireRetryAttempts -> 2, acquireRetryDelay -> 1000, autoCommitOnClose -> false, automaticTestTable -> null, breakAfterAcquireFailure -> false, checkoutTimeout -> 1000, connectionCustomizerClassName -> null, connectionTesterClassName -> com.mchange.v2.c3p0.impl.DefaultConnectionTester, dataSourceName -> 1hge16k9xfbnco8lgb8cu|59d016c9, debugUnreturnedConnectionStackTraces -> false, description -> null, driverClass -> com.mysql.jdbc.Driver, factoryClassLocation -> null, forceIgnoreUnresolvedTransactions -> false, identityToken -> 1hge16k9xfbnco8lgb8cu|59d016c9, idleConnectionTestPeriod -> 0, initialPoolSize -> 3, jdbcUrl -> jdbc:mysql://localhost:3307/seckill?useUnicode=true&characterEncoding=utf8, maxAdministrativeTaskTime -> 0, maxConnectionAge -> 0, maxIdleTime -> 0, maxIdleTimeExcessConnections -> 0, maxPoolSize -> 30, maxStatements -> 0, maxStatementsPerConnection -> 0, minPoolSize -> 10, numHelperThreads -> 3, numThreadsAwaitingCheckoutDefaultUser -> 0, preferredTestQuery -> null, properties -> {user=******, password=******}, propertyCycle -> 0, testConnectionOnCheckin -> false, testConnectionOnCheckout -> false, unreturnedConnectionTimeout -> 0, usesTraditionalReflectiveProxies -> false ]

14:58:04.138 [main] DEBUG org.mybatis.spring.SqlSessionUtils - Closing non transactional SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@1a75e76a]


org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.PersistenceException: 

### Error querying database.  Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is java.sql.SQLException: An attempt by a client to checkout a Connection has timed out.

### The error may exist in file [/Users/wusiyuan/Library/apache-maven-3.5.4/seckill/target/classes/mapper/SeckillDao.xml]

### The error may involve org.seckill.dao.SeckillDao.queryById

### The error occurred while executing a query

### Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is java.sql.SQLException: An attempt by a client to checkout a Connection has timed out.


at org.mybatis.spring.MyBatisExceptionTranslator.translateExceptionIfPossible(MyBatisExceptionTranslator.java:76)

at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:399)

at com.sun.proxy.$Proxy13.selectOne(Unknown Source)

at org.mybatis.spring.SqlSessionTemplate.selectOne(SqlSessionTemplate.java:165)

at org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:69)

at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:53)

at com.sun.proxy.$Proxy14.queryById(Unknown Source)

at org.seckill.dao.SeckillDaoTest.testQueryById(SeckillDaoTest.java:26)

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:498)

at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)

at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)

at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)

at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)

at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:73)

at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:82)

at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:73)

at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)

at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:224)

at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:83)

at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)

at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)

at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)

at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)

at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)

at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)

at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:68)

at org.junit.runners.ParentRunner.run(ParentRunner.java:309)

at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:163)

at org.junit.runner.JUnitCore.run(JUnitCore.java:160)

at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)

at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)

at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)

at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)

Caused by: org.apache.ibatis.exceptions.PersistenceException: 

### Error querying database.  Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is java.sql.SQLException: An attempt by a client to checkout a Connection has timed out.

### The error may exist in file [/Users/wusiyuan/Library/apache-maven-3.5.4/seckill/target/classes/mapper/SeckillDao.xml]

### The error may involve org.seckill.dao.SeckillDao.queryById

### The error occurred while executing a query

### Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is java.sql.SQLException: An attempt by a client to checkout a Connection has timed out.

at org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:30)

at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:122)

at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:113)

at org.apache.ibatis.session.defaults.DefaultSqlSession.selectOne(DefaultSqlSession.java:73)

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:498)

at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:386)

... 34 more

Caused by: org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is java.sql.SQLException: An attempt by a client to checkout a Connection has timed out.

at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:80)

at org.mybatis.spring.transaction.SpringManagedTransaction.openConnection(SpringManagedTransaction.java:82)

at org.mybatis.spring.transaction.SpringManagedTransaction.getConnection(SpringManagedTransaction.java:68)

at org.apache.ibatis.executor.BaseExecutor.getConnection(BaseExecutor.java:315)

at org.apache.ibatis.executor.SimpleExecutor.prepareStatement(SimpleExecutor.java:75)

at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:61)

at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:303)

at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:154)

at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:102)

at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:82)

at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:120)

... 41 more

Caused by: java.sql.SQLException: An attempt by a client to checkout a Connection has timed out.

at com.mchange.v2.sql.SqlUtils.toSQLException(SqlUtils.java:106)

at com.mchange.v2.sql.SqlUtils.toSQLException(SqlUtils.java:65)

at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool.checkoutPooledConnection(C3P0PooledConnectionPool.java:527)

at com.mchange.v2.c3p0.impl.AbstractPoolBackedDataSource.getConnection(AbstractPoolBackedDataSource.java:128)

at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:111)

at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:77)

... 51 more

Caused by: com.mchange.v2.resourcepool.TimeoutException: A client timed out while waiting to acquire a resource from com.mchange.v2.resourcepool.BasicResourcePool@7d900ecf -- timeout at awaitAvailable()

at com.mchange.v2.resourcepool.BasicResourcePool.awaitAvailable(BasicResourcePool.java:1317)

at com.mchange.v2.resourcepool.BasicResourcePool.prelimCheckoutResource(BasicResourcePool.java:557)

at com.mchange.v2.resourcepool.BasicResourcePool.checkoutResource(BasicResourcePool.java:477)

at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool.checkoutPooledConnection(C3P0PooledConnectionPool.java:525)

... 54 more



Process finished with exit code 255


提问者:慕莱坞7343232 2018-08-14 15:00

个回答

  • 糯糯丶小虎
    2018-09-09 15:57:02
    已采纳

    兄弟,你的mysql版本是不是过高了?(我的mysql是8.0.11)
    用的jdbc.properties如下:
    jdbc.driver=com.mysql.cj.jdbc.Driver
    jdbc.url=jdbc:mysql://localhost/...?useSSL=false&serverTimezone=UTC&useUnicode=true&characterEncoding=utf8
    jdbc.username=root
    jdbc.password=...
    我的mysql和connector是8.0.11版本的,也出现了连接数据库失败的问题,看了mysql的官方文档才明白我这个版本的mysql的driver和url已经改了,如上。具体内容可以去看看官网的文档。

    如果不是版本的问题,建议不用c3p0直接用jdbc连接,如果没连接成功,说明是mysql和connector的问题,连接成功的话,再用c3p0还是失败的话那我就不晓得了。

  • 东方明月
    2018-11-01 01:18:01

    谢谢!!!驱动改成8.0和配置文件改了就好用了。是因为8.0版本太高了吗?mysql的url官方文档在哪看啊?有知道的发一下地址呗

  • iOS小车
    2018-10-21 15:44:48

    我刚测试也遇到了问题,我数据库版本是8.0.12,然后mysql-connector-java 也改成8.0.12 。jdbc文件修改为

    jdbc.driver=com.mysql.cj.jdbc.Driver
    jdbc.url=jdbc:mysql://localhost:3306/seckill?useSSL=false&serverTimezone=GMT%2B8&useUnicode=true&characterEncoding=utf8
    jdbc.username=root
    jdbc.password=

    就可以了。

  • _迷醉
    2018-08-31 14:16:08

    jdbc.driver=com.mysql.jdbc.Driver
    jdbc.url=jdbc:mysql://localhost/seckill?useUnicode=true&characterEncoding=utf-8
    jdbc.username=root
    jdbc.password=123456

    用这样的写法就好了

  • 慕容2098438
    2018-08-20 17:55:51

    我也是这个问题

  • 喵喵喵喵喵啊
    2018-08-15 17:52:45

    你的jdbc.properties发出来看看