今天学习SSM框架整合，完成Spring和mybatis这两大框架的整合做测试时候出来很多问题，主要来自于配置文件。

我这里重点说一下Mysql数据驱动配置。

配置pom.xml时候去网站 MySQL Connector/J 找到了最新版本，也是出于好奇就配置了...

<!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java -->

<dependency>

    <groupId>mysql</groupId>

    <artifactId>mysql-connector-java</artifactId>

    <version>6.0.4</version>

</dependency>

解决问题

原来新版的驱动配置有些变化：

1. url连接必须设置时区

### MySQL Connector/J 5.x   (旧版连接)

#jdbc.url=jdbc:mysql://127.0.0.1:3306/test?useUnicode=true&characterEncoding=utf8

### MySQL Connector/J 6.x   (新版连接)

jdbc.url=jdbc:mysql:///test?serverTimezone=UTC&characterEncoding=utf8&useUnicode=true&useSSL=false

说明： 新版驱动url默认地址为127.0.0.1:3306，所以访问本机mysql数据库地址可以用 /// 表示。

2. 新的驱动类位置有了变化（不影响使用，但会报警告）

### MySQL Connector/J 5.x   (旧版驱动)

#jdbc.driver_class=com.mysql.jdbc.Driver

### MySQL Connector/J 6.x   (新版驱动)

jdbc.driver_class=com.mysql.cj.jdbc.Driver

附录：异常查看

1. 连接错误

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 org.apache.commons.dbcp.SQLNestedException: Cannot create PoolableConnectionFactory (The server time zone value '�й���׼ʱ��' is unrecognized or represents more than one time zone. You must configure either the server or JDBC driver (via the serverTimezone configuration property) to use a more specifc time zone value if you want to utilize time zone support.)

### The error may exist in file [D:\Program Files\jee-neon\neon-workspace\project\target\classes\org\sei\mapping\UserMapper.xml]

### The error may involve org.sei.dao.UserDao.selectByPrimaryKey

### The error occurred while executing a query

### Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is org.apache.commons.dbcp.SQLNestedException: Cannot create PoolableConnectionFactory (The server time zone value '�й���׼ʱ��' is unrecognized or represents more than one time zone. You must configure either the server or JDBC driver (via the serverTimezone configuration property) to use a more specifc time zone value if you want to utilize time zone support.)

    at org.mybatis.spring.MyBatisExceptionTranslator.translateExceptionIfPossible(MyBatisExceptionTranslator.java:79)

    at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:447)

    at com.sun.proxy.$Proxy18.selectOne(Unknown Source)

    at org.mybatis.spring.SqlSessionTemplate.selectOne(SqlSessionTemplate.java:167)

    at org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:82)

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

    at com.sun.proxy.$Proxy19.selectByPrimaryKey(Unknown Source)

    at org.sei.service.impl.UserServiceImpl.getUserById(UserServiceImpl.java:20)

    at org.sei.testmybatis.TestMyBatis.test1(TestMyBatis.java:35)

    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

    at java.lang.reflect.Method.invoke(Unknown Source)

    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.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:75)

    at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:86)

    at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:84)

    at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)

    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:252)

    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:94)

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

    at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)

    at org.junit.runners.ParentRunner.run(ParentRunner.java:363)

    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:191)

    at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86)

    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:678)

    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.apache.ibatis.exceptions.PersistenceException:

### Error querying database.  Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is org.apache.commons.dbcp.SQLNestedException: Cannot create PoolableConnectionFactory (The server time zone value '�й���׼ʱ��' is unrecognized or represents more than one time zone. You must configure either the server or JDBC driver (via the serverTimezone configuration property) to use a more specifc time zone value if you want to utilize time zone support.)

### The error may exist in file [D:\Program Files\jee-neon\neon-workspace\project\target\classes\org\sei\mapping\UserMapper.xml]

### The error may involve org.sei.dao.UserDao.selectByPrimaryKey

### The error occurred while executing a query

### Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is org.apache.commons.dbcp.SQLNestedException: Cannot create PoolableConnectionFactory (The server time zone value '�й���׼ʱ��' is unrecognized or represents more than one time zone. You must configure either the server or JDBC driver (via the serverTimezone configuration property) to use a more specifc time zone value if you want to utilize time zone support.)

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

    at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:150)

    at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:141)

    at org.apache.ibatis.session.defaults.DefaultSqlSession.selectOne(DefaultSqlSession.java:77)

    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

    at java.lang.reflect.Method.invoke(Unknown Source)

    at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:434)

    ... 36 more

Caused by: org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is org.apache.commons.dbcp.SQLNestedException: Cannot create PoolableConnectionFactory (The server time zone value '�й���׼ʱ��' is unrecognized or represents more than one time zone. You must configure either the server or JDBC driver (via the serverTimezone configuration property) to use a more specifc time zone value if you want to utilize time zone support.)

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

    at org.mybatis.spring.transaction.SpringManagedTransaction.openConnection(SpringManagedTransaction.java:84)

    at org.mybatis.spring.transaction.SpringManagedTransaction.getConnection(SpringManagedTransaction.java:70)

    at org.apache.ibatis.executor.BaseExecutor.getConnection(BaseExecutor.java:336)

    at org.apache.ibatis.executor.SimpleExecutor.prepareStatement(SimpleExecutor.java:84)

    at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:62)

    at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:324)

    at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:156)

    at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:109)

    at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:83)

    at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:148)

    ... 43 more

Caused by: org.apache.commons.dbcp.SQLNestedException: Cannot create PoolableConnectionFactory (The server time zone value '�й���׼ʱ��' is unrecognized or represents more than one time zone. You must configure either the server or JDBC driver (via the serverTimezone configuration property) to use a more specifc time zone value if you want to utilize time zone support.)

    at org.apache.commons.dbcp.BasicDataSource.createPoolableConnectionFactory(BasicDataSource.java:1549)

    at org.apache.commons.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1388)

    at org.apache.commons.dbcp.BasicDataSource.getConnection(BasicDataSource.java:1044)

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

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

    ... 53 more

Caused by: java.sql.SQLException: The server time zone value '�й���׼ʱ��' is unrecognized or represents more than one time zone. You must configure either the server or JDBC driver (via the serverTimezone configuration property) to use a more specifc time zone value if you want to utilize time zone support.

    at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:569)

    at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:537)

    at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:527)

    at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:512)

    at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:480)

    at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:498)

    at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:494)

    at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:69)

    at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:1634)

    at com.mysql.cj.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:637)

    at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:351)

    at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:224)

    at org.apache.commons.dbcp.DriverConnectionFactory.createConnection(DriverConnectionFactory.java:38)

    at org.apache.commons.dbcp.PoolableConnectionFactory.makeObject(PoolableConnectionFactory.java:582)

    at org.apache.commons.dbcp.BasicDataSource.validateConnectionFactory(BasicDataSource.java:1556)

    at org.apache.commons.dbcp.BasicDataSource.createPoolableConnectionFactory(BasicDataSource.java:1545)

    ... 57 more

Caused by: com.mysql.cj.core.exceptions.InvalidConnectionAttributeException: The server time zone value '�й���׼ʱ��' is unrecognized or represents more than one time zone. You must configure either the server or JDBC driver (via the serverTimezone configuration property) to use a more specifc time zone value if you want to utilize time zone support.

    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)

    at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)

    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)

    at java.lang.reflect.Constructor.newInstance(Unknown Source)

    at com.mysql.cj.core.exceptions.ExceptionFactory.createException(ExceptionFactory.java:54)

    at com.mysql.cj.core.exceptions.ExceptionFactory.createException(ExceptionFactory.java:73)

    at com.mysql.cj.jdbc.util.TimeUtil.getCanonicalTimezone(TimeUtil.java:118)

    at com.mysql.cj.mysqla.MysqlaSession.configureTimezone(MysqlaSession.java:293)

    at com.mysql.cj.jdbc.ConnectionImpl.initializePropsFromServer(ConnectionImpl.java:2424)

    at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:1767)

    at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:1624)

    ... 64 more

2. 驱动警告

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

[org.springframework.test.context.support.DefaultTestContextBootstrapper] - Using TestExecutionListeners: [org.springframework.test.context.web.ServletTestExecutionListener@643b1d11, org.springframework.test.context.support.DirtiesContextBeforeModesTestExecutionListener@2ef5e5e3, org.springframework.test.context.support.DependencyInjectionTestExecutionListener@36d4b5c, org.springframework.test.context.support.DirtiesContextTestExecutionListener@6d00a15d, org.springframework.test.context.transaction.TransactionalTestExecutionListener@51efea79, org.springframework.test.context.jdbc.SqlScriptsTestExecutionListener@5034c75a]

[org.springframework.beans.factory.xml.XmlBeanDefinitionReader] - Loading XML bean definitions from class path resource [spring-mybatis.xml]

[org.springframework.context.support.GenericApplicationContext] - Refreshing org.springframework.context.support.GenericApplicationContext@5f341870: startup date [Sat Oct 08 22:45:26 CST 2016]; root of context hierarchy

[org.springframework.beans.factory.config.PropertyPlaceholderConfigurer] - Loading properties file from class path resource [jdbc.properties]

[org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor] - JSR-330 'javax.inject.Inject' annotation found and supported for autowiring

Loading class `com.mysql.jdbc.Driver'. This is deprecated. The new driver class is `com.mysql.cj.jdbc.Driver'. The driver is automatically registered via the SPI and manual loading of the driver class is generally unnecessary.

[org.sei.testmybatis.TestMyBatis] - {"age":22,"id":2,"password":"pwd2","userName":"test2"}

[org.springframework.context.support.GenericApplicationContext] - Closing org.springframework.context.support.GenericApplicationContext@5f341870: startup date [Sat Oct 08 22:45:26 CST 2016]; root of context hierarchy

3. 正常的测试

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