控制台报错
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [javax.sql.DataSource]: Factory method 'dataSource' threw exception; nested exception is com.zaxxer.hikari.pool.HikariPool$PoolInitializationException: Failed to initialize pool: ORA-00923: 未找到要求的 FROM 关键字 at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185) at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:653) ... 99 common frames omitted Caused by: com.zaxxer.hikari.pool.HikariPool$PoolInitializationException: Failed to initialize pool: ORA-00923: 未找到要求的 FROM 关键字 at com.zaxxer.hikari.pool.HikariPool.throwPoolInitializationException(HikariPool.java:596) at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:575) at com.zaxxer.hikari.pool.HikariPool.(HikariPool.java:115) at com.zaxxer.hikari.HikariDataSource. (HikariDataSource.java:81) at com.pty.db.config.SingleDataSourceConfig.dataSource(SingleDataSourceConfig.java:81) at com.pty.db.config.SingleDataSourceConfig$$EnhancerBySpringCGLIB$$1.CGLIB$dataSource$0( ) at com.pty.db.config.SingleDataSourceConfig$$EnhancerBySpringCGLIB$$1$$FastClassBySpringCGLIB$$1.invoke( ) at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:244) at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:331) at com.pty.db.config.SingleDataSourceConfig$$EnhancerBySpringCGLIB$$1.dataSource( ) 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.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154) ... 100 common frames omitted Caused by: java.sql.SQLSyntaxErrorException: ORA-00923: 未找到要求的 FROM 关键字 at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:445) at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:396) at oracle.jdbc.driver.T4C8Oall.processError(T4C8Oall.java:879) at oracle.jdbc.driver.T4CTTIfun.receive(T4CTTIfun.java:450) at oracle.jdbc.driver.T4CTTIfun.doRPC(T4CTTIfun.java:192) at oracle.jdbc.driver.T4C8Oall.doOALL(T4C8Oall.java:531) at oracle.jdbc.driver.T4CStatement.doOall8(T4CStatement.java:193) at oracle.jdbc.driver.T4CStatement.executeForDescribe(T4CStatement.java:873) at oracle.jdbc.driver.OracleStatement.executeMaybeDescribe(OracleStatement.java:1167) at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1289) at oracle.jdbc.driver.OracleStatement.executeInternal(OracleStatement.java:1909) at oracle.jdbc.driver.OracleStatement.execute(OracleStatement.java:1871) at oracle.jdbc.driver.OracleStatementWrapper.execute(OracleStatementWrapper.java:318) at com.zaxxer.hikari.pool.Poolbase.executeSql(Poolbase.java:583) at com.zaxxer.hikari.pool.Poolbase.checkValidationSupport(Poolbase.java:467) at com.zaxxer.hikari.pool.Poolbase.checkDriverSupport(Poolbase.java:447) at com.zaxxer.hikari.pool.Poolbase.setupConnection(Poolbase.java:416) at com.zaxxer.hikari.pool.Poolbase.newConnection(Poolbase.java:369) at com.zaxxer.hikari.pool.Poolbase.newPoolEntry(Poolbase.java:206) at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:476) at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:561) ... 113 common frames omitted Disconnected from the target VM, address: '127.0.0.1:63734', transport: 'socket' Process finished with exit code 1
原因：
扩展：各个数据库的配置为
