解决error {dataSource-1} init error java.sql.SQLException: com.mysql.cj.jdbc.Driver

七月 08, 2019 2:39:14 下午 com.alibaba.druid.pool.DruidDataSource error
严重:error {dataSource-1} init error java.sql.SQLException: com.mysql.cj.jdbc.Driverat com.alibaba.druid.util.JdbcUtils.createDriver(JdbcUtils.java:520)at com.alibaba.druid.pool.DruidDataSource.init(DruidDataSource.java:583)at com.alibaba.druid.pool.DruidDataSource.getConnection(DruidDataSource.java:915)at com.alibaba.druid.pool.DruidDataSource.getConnection(DruidDataSource.java:911)at com.alibaba.druid.pool.DruidDataSource.getConnection(DruidDataSource.java:98)at org.springframework.jdbc.datasource.DataSourceUtils.fetchConnection(DataSourceUtils.java:151)at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:115)at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:78)at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:598)at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:655)at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:686)at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:698)at org.springframework.jdbc.core.JdbcTemplate.queryForObject(JdbcTemplate.java:776)at edu.haizi.dao.UserDao.login(UserDao.java:17)at edu.haizi.test.UserDaoTest.testLogin(UserDaoTest.java:15)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: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.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)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$2.evaluate(ParentRunner.java:268)at org.junit.runners.ParentRunner.run(ParentRunner.java:363)at org.junit.runner.JUnitCore.run(JUnitCore.java:137)at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)at com.intellij.rt.execution.junit.IdeaTestRunner$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: java.lang.ClassNotFoundException: com.mysql.cj.jdbc.Driverat java.net.URLClassLoader.findClass(URLClassLoader.java:381)at java.lang.ClassLoader.loadClass(ClassLoader.java:424)at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)at java.lang.ClassLoader.loadClass(ClassLoader.java:357)at java.lang.Class.forName0(Native Method)at java.lang.Class.forName(Class.java:264)at com.alibaba.druid.util.JdbcUtils.createDriver(JdbcUtils.java:518)... 36 more七月 08, 2019 2:39:14 下午 com.alibaba.druid.pool.DruidDataSource info
信息: {dataSource-1} initedorg.springframework.jdbc.CannotGetJdbcConnectionException: Failed to obtain JDBC Connection; nested exception is java.sql.SQLException: com.mysql.cj.jdbc.Driverat org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:81)at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:598)at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:655)at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:686)at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:698)at org.springframework.jdbc.core.JdbcTemplate.queryForObject(JdbcTemplate.java:776)at edu.haizi.dao.UserDao.login(UserDao.java:17)at edu.haizi.test.UserDaoTest.testLogin(UserDaoTest.java:15)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: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.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)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$2.evaluate(ParentRunner.java:268)at org.junit.runners.ParentRunner.run(ParentRunner.java:363)at org.junit.runner.JUnitCore.run(JUnitCore.java:137)at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)at com.intellij.rt.execution.junit.IdeaTestRunner$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: java.sql.SQLException: com.mysql.cj.jdbc.Driverat com.alibaba.druid.util.JdbcUtils.createDriver(JdbcUtils.java:520)at com.alibaba.druid.pool.DruidDataSource.init(DruidDataSource.java:583)at com.alibaba.druid.pool.DruidDataSource.getConnection(DruidDataSource.java:915)at com.alibaba.druid.pool.DruidDataSource.getConnection(DruidDataSource.java:911)at com.alibaba.druid.pool.DruidDataSource.getConnection(DruidDataSource.java:98)at org.springframework.jdbc.datasource.DataSourceUtils.fetchConnection(DataSourceUtils.java:151)at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:115)at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:78)... 29 more
Caused by: java.lang.ClassNotFoundException: com.mysql.cj.jdbc.Driverat java.net.URLClassLoader.findClass(URLClassLoader.java:381)at java.lang.ClassLoader.loadClass(ClassLoader.java:424)at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)at java.lang.ClassLoader.loadClass(ClassLoader.java:357)at java.lang.Class.forName0(Native Method)at java.lang.Class.forName(Class.java:264)at com.alibaba.druid.util.JdbcUtils.createDriver(JdbcUtils.java:518)... 36 moreProcess finished with exit code -1

解决方法：Windows下mysql版本高于idea致使版本不兼容

修改maven依赖包

原版本5.1.9

<dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId><version>5.1.9</version></dependency>

修改为更高版本

<dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId><version>8.0.28</version></dependency>

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