IDEA执行JDBC程序时出现的三种异常原因及解决方法

怼烎@ 2023-07-10 08:56 13阅读 0赞

## IDEA执行JDBC程序时出现的三种异常原因及解决方法 ##

*  ### 异常一：java.sql.SQLException ###

**异常代码：**

Exception in thread "main" java.sql.SQLException: The server time zone value 'ÖÐ¹ú±ê×¼Ê±¼ä' is unrecognized or represents more than one time zone. You must configure either the server or JDBC driver (via the serverTimezone configuration property) to use a more specifc time zone value if you want to utilize time zone support.
    	at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:127)
    	at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:95)
    	at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:87)
    	at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:61)
    	at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:71)
    	at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:76)
    	at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:862)
    	at com.mysql.cj.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:444)
    	at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:230)
    	at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:226)
    	at java.sql/java.sql.DriverManager.getConnection(DriverManager.java:677)
    	at java.sql/java.sql.DriverManager.getConnection(DriverManager.java:228)
    	at Day29.Demo01_JDBC.Demo01_JDBC.main(Demo01_JDBC.java:14)
    	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    	at java.base/java.lang.reflect.Method.invoke(Method.java:567)
    	at com.intellij.rt.execution.application.AppMainV2.main(AppMainV2.java:131)
    Caused by: com.mysql.cj.exceptions.InvalidConnectionAttributeException: The server time zone value 'ÖÐ¹ú±ê×¼Ê±¼ä' is unrecognized or represents more than one time zone. You must configure either the server or JDBC driver (via the serverTimezone configuration property) to use a more specifc time zone value if you want to utilize time zone support.
    	at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    	at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
    	at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    	at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:500)
    	at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:481)
    	at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:59)
    	at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:83)
    	at com.mysql.cj.util.TimeUtil.getCanonicalTimezone(TimeUtil.java:128)
    	at com.mysql.cj.protocol.a.NativeProtocol.configureTimezone(NativeProtocol.java:2201)
    	at com.mysql.cj.protocol.a.NativeProtocol.initServerSession(NativeProtocol.java:2225)
    	at com.mysql.cj.jdbc.ConnectionImpl.initializePropsFromServer(ConnectionImpl.java:1391)
    	at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:993)
    	at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:852)
    	... 11 more

**异常原因：**  
系统时间错误，存在时差，具体细节可查看博客：*https://blog.csdn.net/love20yh/article/details/80799610*  
**解决方法：**  
在`jdbc:mysql://localhost:3306/db1`后加上`?serverTimezone=GMT%2B8`，  
修改配置文件为`jdbc:mysql://localhost:3306/db1?serverTimezone=GMT%2B8`。

*  ### 异常二：javax.net.ssl.SSLException ###

**异常代码：**

** BEGIN NESTED EXCEPTION ** 
    
    javax.net.ssl.SSLException
    MESSAGE: closing inbound before receiving peer's close_notify
    
    STACKTRACE:
    
    javax.net.ssl.SSLException: closing inbound before receiving peer's close_notify
    	at java.base/sun.security.ssl.Alert.createSSLException(Alert.java:133)
    	at java.base/sun.security.ssl.Alert.createSSLException(Alert.java:117)
    	at java.base/sun.security.ssl.TransportContext.fatal(TransportContext.java:311)
    	at java.base/sun.security.ssl.TransportContext.fatal(TransportContext.java:267)
    	at java.base/sun.security.ssl.TransportContext.fatal(TransportContext.java:258)
    	at java.base/sun.security.ssl.SSLSocketImpl.shutdownInput(SSLSocketImpl.java:801)
    	at java.base/sun.security.ssl.SSLSocketImpl.shutdownInput(SSLSocketImpl.java:780)
    	at com.mysql.cj.protocol.a.NativeProtocol.quit(NativeProtocol.java:1284)
    	at com.mysql.cj.NativeSession.quit(NativeSession.java:182)
    	at com.mysql.cj.jdbc.ConnectionImpl.realClose(ConnectionImpl.java:1911)
    	at com.mysql.cj.jdbc.ConnectionImpl.close(ConnectionImpl.java:730)
    	at Day29.Demo01_JDBC.Demo01_JDBC.main(Demo01_JDBC.java:25)
    	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    	at java.base/java.lang.reflect.Method.invoke(Method.java:567)
    	at com.intellij.rt.execution.application.AppMainV2.main(AppMainV2.java:131)
    
    
    ** END NESTED EXCEPTION **

**异常原因：**  
新版本的MySQL要求是否进行ssl连接  
**解决方法：**  
在`jdbc:mysql://localhost:3306/db1?serverTimezone=GMT%2B8`后加上`&useSSL=false`，  
修改配置文件为`jdbc:mysql://localhost:3306/db1?serverTimezone=GMT%2B8&useSSL=false`。

*  ### 异常三：java.sql.SQLException; ###

**异常代码：**

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.

**异常原因：**  
异常提示表明：com.mysql.jdbc.Driver已过时，新版本为com.mysql.cj.jdbc.Driver，且Driver类为自动注册，所以注册驱动行程序可不执行。实际上MySQL5版本之后的驱动jar包可省略注册驱动的步骤。  
**解决方法：**  
将`com.mysql.jdbc.Driver`修改为`com.mysql.cj.jdbc.Driver`，或将注册驱动这行代码删掉。