数据库连接不上，还是怎么回事啊？求大神来帮助一下

源自：3-6 dao层开发

数据库连接不上，还是怎么回事啊？求大神来帮助一下

2018-11-10 20:29:25.451 INFO 11048 --- [ main] com.hanyinh.dao.AreaDaoTest : Starting AreaDaoTest on DESKTOP-LG26RSS with PID 11048 (started by Hanyinh in G:\TemporaryTask\Idea\spring-boot\mini-program)

2018-11-10 20:29:25.453 INFO 11048 --- [ main] com.hanyinh.dao.AreaDaoTest : The following profiles are active: dev

2018-11-10 20:29:28.781 INFO 11048 --- [g-Init-Reporter] com.mchange.v2.log.MLog : MLog clients using slf4j logging.

2018-11-10 20:29:29.123 INFO 11048 --- [ main] com.mchange.v2.c3p0.C3P0Registry : Initializing c3p0-0.9.5.2 [built 08-December-2015 22:06:04 -0800; debug? true; trace: 10]

2018-11-10 20:29:31.196 INFO 11048 --- [ main] o.s.s.concurrent.ThreadPoolTaskExecutor : Initializing ExecutorService 'applicationTaskExecutor'

2018-11-10 20:29:32.290 INFO 11048 --- [ main] com.hanyinh.dao.AreaDaoTest : Started AreaDaoTest in 8.35 seconds (JVM running for 11.115)

2018-11-10 20:29:32.845 INFO 11048 --- [ main] c.m.v.c.i.AbstractPoolBackedDataSource : Initializing c3p0 pool... com.mchange.v2.c3p0.ComboPooledDataSource [ acquireIncrement -> 3, acquireRetryAttempts -> 30, acquireRetryDelay -> 1000, autoCommitOnClose -> false, automaticTestTable -> null, breakAfterAcquireFailure -> false, checkoutTimeout -> 0, connectionCustomizerClassName -> null, connectionTesterClassName -> com.mchange.v2.c3p0.impl.DefaultConnectionTester, contextClassLoaderSource -> caller, dataSourceName -> 1hge0yz9y1yd4hod143vxhi|3a66e67e, debugUnreturnedConnectionStackTraces -> false, description -> null, driverClass -> com.mysql.jdbc.Driver, extensions -> {}, factoryClassLocation -> null, forceIgnoreUnresolvedTransactions -> false, forceSynchronousCheckins -> false, forceUseNamedDriverClass -> false, identityToken -> 1hge0yz9y1yd4hod143vxhi|3a66e67e, idleConnectionTestPeriod -> 0, initialPoolSize -> 3, jdbcUrl -> ${jdbc.url, maxAdministrativeTaskTime -> 0, maxConnectionAge -> 0, maxIdleTime -> 0, maxIdleTimeExcessConnections -> 0, maxPoolSize -> 15, maxStatements -> 0, maxStatementsPerConnection -> 0, minPoolSize -> 3, numHelperThreads -> 3, preferredTestQuery -> null, privilegeSpawnedThreads -> false, properties -> {user=******, password=******}, propertyCycle -> 0, statementCacheNumDeferredCloseThreads -> 0, testConnectionOnCheckin -> false, testConnectionOnCheckout -> false, unreturnedConnectionTimeout -> 0, userOverrides -> {}, usesTraditionalReflectiveProxies -> false ]

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.

2018-11-10 20:30:02.968 WARN 11048 --- [HelperThread-#1] c.m.v2.resourcepool.BasicResourcePool : com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask@32041a6c -- Acquisition Attempt Failed!!! Clearing pending acquires. While trying to acquire a needed new resource, we failed to succeed more than the maximum number of allowed acquisition attempts (30). Last acquisition attempt exception:

java.sql.SQLException: No suitable driver

at java.sql.DriverManager.getDriver(DriverManager.java:315) ~[na:1.8.0_131]

at com.mchange.v2.c3p0.DriverManagerDataSource.driver(DriverManagerDataSource.java:285) ~[c3p0-0.9.5.2.jar:0.9.5.2]

at com.mchange.v2.c3p0.DriverManagerDataSource.getConnection(DriverManagerDataSource.java:175) ~[c3p0-0.9.5.2.jar:0.9.5.2]

at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:220) ~[c3p0-0.9.5.2.jar:0.9.5.2]

at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:206) ~[c3p0-0.9.5.2.jar:0.9.5.2]

at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.acquireResource(C3P0PooledConnectionPool.java:203) ~[c3p0-0.9.5.2.jar:0.9.5.2]

at com.mchange.v2.resourcepool.BasicResourcePool.doAcquire(BasicResourcePool.java:1138) ~[c3p0-0.9.5.2.jar:0.9.5.2]

at com.mchange.v2.resourcepool.BasicResourcePool.doAcquireAndDecrementPendingAcquiresWithinLockOnSuccess(BasicResourcePool.java:1125) ~[c3p0-0.9.5.2.jar:0.9.5.2]

at com.mchange.v2.resourcepool.BasicResourcePool.access$700(BasicResourcePool.java:44) ~[c3p0-0.9.5.2.jar:0.9.5.2]

at com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask.run(BasicResourcePool.java:1870) ~[c3p0-0.9.5.2.jar:0.9.5.2]

at com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:696) [mchange-commons-java-0.2.11.jar:0.2.11]

2018-11-10 20:30:02.968 WARN 11048 --- [HelperThread-#0] c.m.v2.resourcepool.BasicResourcePool : com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask@1d8036fe -- Acquisition Attempt Failed!!! Clearing pending acquires. While trying to acquire a needed new resource, we failed to succeed more than the maximum number of allowed acquisition attempts (30). Last acquisition attempt exception: