Access denied for user 'Thinkpad'@'192.168.1.100' (using password: YES)

java连接MySQL时报Access denied for user 'Thinkpad'@'192.168.1.100' (using password: YES)异常，原因是MySQL的外网访问限制的原因，主机名+IP（'Thinkpad'@'192.168.1.100' ）没有权限访问数据库，那么需要创建用户"Thinkpad"，并赋权后方可访问。

1.创建"Thinkpad"用户，'%'表示允许"Thinkpad"用户所有的IP连接

>create user 'Thinkpad'@'%' identified by 'rootroot';

2.赋权， " Thinkpad "用户拥有访问某个数据库的权限

>grant all privileges on `mydb`.* to 'Thinkpad'@'%' identified by 'rootroot';

3.刷新

flush privileges;

org.springframework.transaction.CannotCreateTransactionException: Could not open JDBC Connection for transaction; nested exception is java.sql.SQLException: Access denied for user 'Thinkpad'@'192.168.1.100' (using password: YES)
	at org.springframework.jdbc.datasource.DataSourceTransactionManager.doBegin(DataSourceTransactionManager.java:245)
	at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:373)
	at org.springframework.test.context.transaction.TransactionContext.startTransaction(TransactionContext.java:98)
	at org.springframework.test.context.transaction.TransactionalTestExecutionListener.beforeTestMethod(TransactionalTestExecutionListener.java:200)
	at org.springframework.test.context.TestContextManager.beforeTestMethod(TestContextManager.java:249)
	at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:72)
	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:325)
	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: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:68)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
	at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:163)
	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: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: java.sql.SQLException: Access denied for user 'Thinkpad'@'192.168.1.100' (using password: YES)
	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:946)
	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2870)
	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:812)
	at com.mysql.jdbc.MysqlIO.secureAuth411(MysqlIO.java:3269)
	at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1182)
	at com.mysql.jdbc.Connection.createNewIO(Connection.java:2670)
	at com.mysql.jdbc.Connection.(Connection.java:1531)
	at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:266)
	at org.apache.tomcat.jdbc.pool.PooledConnection.connectUsingDriver(PooledConnection.java:310)
	at org.apache.tomcat.jdbc.pool.PooledConnection.connect(PooledConnection.java:203)
	at org.apache.tomcat.jdbc.pool.ConnectionPool.createConnection(ConnectionPool.java:738)
	at org.apache.tomcat.jdbc.pool.ConnectionPool.borrowConnection(ConnectionPool.java:670)
	at org.apache.tomcat.jdbc.pool.ConnectionPool.init(ConnectionPool.java:482)
	at org.apache.tomcat.jdbc.pool.ConnectionPool.(ConnectionPool.java:154)
	at org.apache.tomcat.jdbc.pool.DataSourceProxy.pCreatePool(DataSourceProxy.java:118)
	at org.apache.tomcat.jdbc.pool.DataSourceProxy.createPool(DataSourceProxy.java:107)
	at org.apache.tomcat.jdbc.pool.DataSourceProxy.getConnection(DataSourceProxy.java:131)
	at org.springframework.jdbc.datasource.DataSourceTransactionManager.doBegin(DataSourceTransactionManager.java:204)
	... 25 more