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发表在Java图书答疑 2020-07-02 《Java项目开发实战入门》
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运行主窗体出的这些，怎么回事

七月 02, 2020 4:17:47 下午 org.hibernate.cfg.Environment <clinit>

信息: Hibernate 3.2.0

七月 02, 2020 4:17:47 下午 org.hibernate.cfg.Environment <clinit>

信息: hibernate.properties not found

七月 02, 2020 4:17:47 下午 org.hibernate.cfg.Environment buildBytecodeProvider

信息: Bytecode provider name : cglib

七月 02, 2020 4:17:47 下午 org.hibernate.cfg.Environment <clinit>

信息: using JDK 1.4 java.sql.Timestamp handling

七月 02, 2020 4:17:47 下午 org.hibernate.cfg.Configuration configure

信息: configuring from resource: /hibernate.cfg.xml

七月 02, 2020 4:17:47 下午 org.hibernate.cfg.Configuration getConfigurationInputStream

信息: Configuration resource: /hibernate.cfg.xml

七月 02, 2020 4:17:47 下午 org.hibernate.cfg.Configuration addResource

信息: Reading mappings from resource: pojo/User.hbm.xml

七月 02, 2020 4:17:47 下午 org.hibernate.cfg.HbmBinder bindRootPersistentClassCommonValues

信息: Mapping class: pojo.User -> tb_users

七月 02, 2020 4:17:48 下午 org.hibernate.cfg.Configuration addResource

信息: Reading mappings from resource: pojo/Customer.hbm.xml

七月 02, 2020 4:17:48 下午 org.hibernate.cfg.HbmBinder bindRootPersistentClassCommonValues

信息: Mapping class: pojo.Customer -> tb_customer_info

七月 02, 2020 4:17:48 下午 org.hibernate.cfg.Configuration addResource

信息: Reading mappings from resource: pojo/Communication.hbm.xml

七月 02, 2020 4:17:48 下午 org.hibernate.cfg.HbmBinder bindRootPersistentClassCommonValues

信息: Mapping class: pojo.Communication -> tb_communication_info

七月 02, 2020 4:17:48 下午 org.hibernate.cfg.Configuration doConfigure

信息: Configured SessionFactory: null

七月 02, 2020 4:17:48 下午 org.hibernate.cfg.HbmBinder bindCollectionSecondPass

信息: Mapping collection: pojo.Customer.communicationList -> tb_communication_info

七月 02, 2020 4:17:48 下午 org.hibernate.connection.DriverManagerConnectionProvider configure

信息: Using Hibernate built-in connection pool (not for production use!)

七月 02, 2020 4:17:48 下午 org.hibernate.connection.DriverManagerConnectionProvider configure

信息: Hibernate connection pool size: 20

七月 02, 2020 4:17:48 下午 org.hibernate.connection.DriverManagerConnectionProvider configure

信息: autocommit mode: false

七月 02, 2020 4:17:48 下午 org.hibernate.connection.DriverManagerConnectionProvider configure

信息: using driver: com.mysql.jdbc.Driver at URL: jdbc:mysql://127.0.0.1:3306/test02

七月 02, 2020 4:17:48 下午 org.hibernate.connection.DriverManagerConnectionProvider configure

信息: connection properties: {user=root, password=****}

七月 02, 2020 4:17:48 下午 org.hibernate.cfg.SettingsFactory buildSettings

警告: Could not obtain connection metadata

com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Could not create connection to database server.

at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)

at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)

at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)

at java.lang.reflect.Constructor.newInstance(Unknown Source)

at com.mysql.jdbc.Util.handleNewInstance(Util.java:400)

at com.mysql.jdbc.Util.getInstance(Util.java:383)

at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:958)

at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:937)

at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:926)

at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:872)

at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2326)

at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2079)

at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:794)

at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:44)

at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)

at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)

at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)

at java.lang.reflect.Constructor.newInstance(Unknown Source)

at com.mysql.jdbc.Util.handleNewInstance(Util.java:400)

at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:399)

at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:325)

at java.sql.DriverManager.getConnection(Unknown Source)

at java.sql.DriverManager.getConnection(Unknown Source)

at org.hibernate.connection.DriverManagerConnectionProvider.getConnection(DriverManagerConnectionProvider.java:110)

at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:76)

at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:1933)

at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1216)

at com.mr.contact.hibernate.HibernateInitialize.<clinit>(HibernateInitialize.java:20)

at com.mr.contact.dao.DAOimpl.selectAllUser(DAOimpl.java:191)

at frame.MainFrame.main(MainFrame.java:25)

Caused by: java.lang.NullPointerException

at com.mysql.jdbc.ConnectionImpl.getServerCharset(ConnectionImpl.java:2999)

at com.mysql.jdbc.MysqlIO.sendConnectionAttributes(MysqlIO.java:1885)

at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1814)

at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1207)

at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2249)

at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2280)

... 19 more


七月 02, 2020 4:17:48 下午 org.hibernate.dialect.Dialect <init>

信息: Using dialect: org.hibernate.dialect.MySQLDialect

七月 02, 2020 4:17:48 下午 org.hibernate.transaction.TransactionFactoryFactory buildTransactionFactory

信息: Using default transaction strategy (direct JDBC transactions)

七月 02, 2020 4:17:48 下午 org.hibernate.transaction.TransactionManagerLookupFactory getTransactionManagerLookup

信息: No TransactionManagerLookup configured (in JTA environment, use of read-write or transactional second-level cache is not recommended)

七月 02, 2020 4:17:48 下午 org.hibernate.cfg.SettingsFactory buildSettings

信息: Automatic flush during beforeCompletion(): disabled

七月 02, 2020 4:17:48 下午 org.hibernate.cfg.SettingsFactory buildSettings

信息: Automatic session close at end of transaction: disabled

七月 02, 2020 4:17:48 下午 org.hibernate.cfg.SettingsFactory buildSettings

信息: Scrollable result sets: disabled

七月 02, 2020 4:17:48 下午 org.hibernate.cfg.SettingsFactory buildSettings

信息: JDBC3 getGeneratedKeys(): disabled

七月 02, 2020 4:17:48 下午 org.hibernate.cfg.SettingsFactory buildSettings

信息: Connection release mode: auto

七月 02, 2020 4:17:48 下午 org.hibernate.cfg.SettingsFactory buildSettings

信息: Maximum outer join fetch depth: 2

七月 02, 2020 4:17:48 下午 org.hibernate.cfg.SettingsFactory buildSettings

信息: Default batch fetch size: 1

七月 02, 2020 4:17:48 下午 org.hibernate.cfg.SettingsFactory buildSettings

信息: Generate SQL with comments: disabled

七月 02, 2020 4:17:48 下午 org.hibernate.cfg.SettingsFactory buildSettings

信息: Order SQL updates by primary key: disabled

七月 02, 2020 4:17:48 下午 org.hibernate.cfg.SettingsFactory createQueryTranslatorFactory

信息: Query translator: org.hibernate.hql.ast.ASTQueryTranslatorFactory

七月 02, 2020 4:17:48 下午 org.hibernate.hql.ast.ASTQueryTranslatorFactory <init>

信息: Using ASTQueryTranslatorFactory

七月 02, 2020 4:17:48 下午 org.hibernate.cfg.SettingsFactory buildSettings

信息: Query language substitutions: {}

七月 02, 2020 4:17:48 下午 org.hibernate.cfg.SettingsFactory buildSettings

信息: JPA-QL strict compliance: disabled

七月 02, 2020 4:17:48 下午 org.hibernate.cfg.SettingsFactory buildSettings

信息: Second-level cache: enabled

七月 02, 2020 4:17:48 下午 org.hibernate.cfg.SettingsFactory buildSettings

信息: Query cache: disabled

七月 02, 2020 4:17:48 下午 org.hibernate.cfg.SettingsFactory createCacheProvider

信息: Cache provider: org.hibernate.cache.NoCacheProvider

七月 02, 2020 4:17:48 下午 org.hibernate.cfg.SettingsFactory buildSettings

信息: Optimize cache for minimal puts: disabled

七月 02, 2020 4:17:48 下午 org.hibernate.cfg.SettingsFactory buildSettings

信息: Structured second-level cache entries: disabled

七月 02, 2020 4:17:48 下午 org.hibernate.cfg.SettingsFactory buildSettings

信息: Statistics: disabled

七月 02, 2020 4:17:48 下午 org.hibernate.cfg.SettingsFactory buildSettings

信息: Deleted entity synthetic identifier rollback: disabled

七月 02, 2020 4:17:48 下午 org.hibernate.cfg.SettingsFactory buildSettings

信息: Default entity-mode: pojo

七月 02, 2020 4:17:48 下午 org.hibernate.impl.SessionFactoryImpl <init>

信息: building session factory

七月 02, 2020 4:17:48 下午 org.hibernate.impl.SessionFactoryObjectFactory addInstance

信息: Not binding factory to JNDI, no JNDI name configured

七月 02, 2020 4:17:48 下午 org.hibernate.util.JDBCExceptionReporter logExceptions

警告: SQL Error: 0, SQLState: 08001

七月 02, 2020 4:17:48 下午 org.hibernate.util.JDBCExceptionReporter logExceptions

严重: Could not create connection to database server.

Exception in thread "main" org.hibernate.exception.JDBCConnectionException: Cannot open connection

at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:74)

at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)

at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:29)

at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:420)

at org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:144)

at org.hibernate.jdbc.AbstractBatcher.prepareQueryStatement(AbstractBatcher.java:139)

at org.hibernate.loader.Loader.prepareQueryStatement(Loader.java:1560)

at org.hibernate.loader.Loader.doQuery(Loader.java:661)

at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:224)

at org.hibernate.loader.Loader.doList(Loader.java:2144)

at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2028)

at org.hibernate.loader.Loader.list(Loader.java:2023)

at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:393)

at org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:338)

at org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:172)

at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1121)

at org.hibernate.impl.QueryImpl.list(QueryImpl.java:79)

at com.mr.contact.dao.DAOimpl.selectAllUser(DAOimpl.java:194)

at frame.MainFrame.main(MainFrame.java:25)

Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Could not create connection to database server.

at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)

at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)

at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)

at java.lang.reflect.Constructor.newInstance(Unknown Source)

at com.mysql.jdbc.Util.handleNewInstance(Util.java:400)

at com.mysql.jdbc.Util.getInstance(Util.java:383)

at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:958)

at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:937)

at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:926)

at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:872)

at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2326)

at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2079)

at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:794)

at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:44)

at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)

at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)

at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)

at java.lang.reflect.Constructor.newInstance(Unknown Source)

at com.mysql.jdbc.Util.handleNewInstance(Util.java:400)

at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:399)

at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:325)

at java.sql.DriverManager.getConnection(Unknown Source)

at java.sql.DriverManager.getConnection(Unknown Source)

at org.hibernate.connection.DriverManagerConnectionProvider.getConnection(DriverManagerConnectionProvider.java:110)

at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:417)

... 15 more

Caused by: java.lang.NullPointerException

at com.mysql.jdbc.ConnectionImpl.getServerCharset(ConnectionImpl.java:2999)

at com.mysql.jdbc.MysqlIO.sendConnectionAttributes(MysqlIO.java:1885)

at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1814)

at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1207)

at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2249)

at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2280)

... 29 more


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2021-07-16 23:48:46
2020-07-03
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无法连接目标数据库

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