ORA-12514, TNS:listener does not currently know of service requested in connect descriptor

oracle异常信息

### Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is java.sql.SQLRecoverableException: Listener refused the connection with the following error:
ORA-12514, TNS:listener does not currently know of service requested in connect descriptor
 
    at org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:30)
    at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:122)
    at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:113)
    at org.apache.ibatis.session.defaults.DefaultSqlSession.selectOne(DefaultSqlSession.java:73)
    at sun.reflect.GeneratedMethodAccessor123.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:358)
    ... 63 more
Caused by: org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is java.sql.SQLRecoverableException: Listener refused the connection with the following error:
ORA-12514, TNS:listener does not currently know of service requested in connect descriptor
 
    at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:80)
    at org.mybatis.spring.transaction.SpringManagedTransaction.openConnection(SpringManagedTransaction.java:81)
    at org.mybatis.spring.transaction.SpringManagedTransaction.getConnection(SpringManagedTransaction.java:67)
    at org.apache.ibatis.executor.BaseExecutor.getConnection(BaseExecutor.java:315)
    at org.apache.ibatis.executor.SimpleExecutor.prepareStatement(SimpleExecutor.java:75)
    at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:61)
    at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:303)
    at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:154)
    at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:102)
    at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:82)
    at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:120)
    ... 69 more
Caused by: java.sql.SQLRecoverableException: Listener refused the connection with the following error:
ORA-12514, TNS:listener does not currently know of service requested in connect descriptor
 
    at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:774)
    at oracle.jdbc.driver.PhysicalConnection.connect(PhysicalConnection.java:688)
    at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:39)
    at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:691)
    at org.apache.commons.dbcp.DriverConnectionFactory.createConnection(DriverConnectionFactory.java:38)
    at org.apache.commons.dbcp.PoolableConnectionFactory.makeObject(PoolableConnectionFactory.java:294)
    at org.apache.commons.pool.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:1148)
    at org.apache.commons.dbcp.PoolingDataSource.getConnection(PoolingDataSource.java:96)
    at org.apache.commons.dbcp.BasicDataSource.getConnection(BasicDataSource.java:880)
    at org.springframework.jdbc.datasource.lookup.AbstractRoutingDataSource.getConnection(AbstractRoutingDataSource.java:164)
    at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:111)
    at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:77)
    ... 79 more
Caused by: oracle.net.ns.NetException: Listener refused the connection with the following error:
ORA-12514, TNS:listener does not currently know of service requested in connect descriptor
 
    at oracle.net.ns.NSProtocolNIO.negotiateConnection(NSProtocolNIO.java:271)
    at oracle.net.ns.NSProtocol.connect(NSProtocol.java:317)
    at oracle.jdbc.driver.T4CConnection.connect(T4CConnection.java:1438)
    at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:518)

在sqlplus或者navicat工具里面执行sql语句，提示

[2017-12-17 15:03:50] [08000][17410] 无法从套接字读取更多的数据

命令登录oracle

查看数据状态，发现第二个的状态是 mounted

select name,open_mode from v$pdbs;

 把状态为MOUNTED的更改值

alter pluggable database name(上面查询出来状态是MOUNTED的名字) opne;

执行完后，再查看状态，变为可读可写

 

问题解决。