INFO: HHH000401: using driver [oracle.jdbc.driver.OracleDriver] at URL [jdbc:oracle:thin:@localhost:1521:orcl]九月 15, 2018 11:39:14 上午 org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl configureINFO: HHH000046: Connection properties: {user=scott, password=****}Exception in thread "main" java.lang.NullPointerException at java.lang.String.<init>(String.java:166) at oracle.sql.CharacterSet.AL32UTF8ToString(CharacterSet.java:1628) at oracle.jdbc.driver.DBConversion.CharBytesToString(DBConversion.java:834) at oracle.jdbc.driver.DBConversion.CharBytesToString(DBConversion.java:773) at oracle.jdbc.driver.T4CTTIoauthenticate.receiveOauth(T4CTTIoauthenticate.java:816) at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:376) at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:441) at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:165) at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:35) at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:839) at org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl.getConnection(DriverManagerConnectionProviderImpl.java:204) at org.hibernate.engine.jdbc.internal.JdbcServicesImpl$ConnectionProviderJdbcConnectionAccess.obtainConnection(JdbcServicesImpl.java:242) at org.hibernate.engine.jdbc.internal.JdbcServicesImpl.configure(JdbcServicesImpl.java:117) at org.hibernate.service.internal.StandardServiceRegistryImpl.configureService(StandardServiceRegistryImpl.java:85) at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:184) at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:156) at org.hibernate.cfg.Configuration.buildTypeRegistrations(Configuration.java:1827) at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1785) at com.util.HibernateUtil.getSessionFactory(HibernateUtil.java:18) at com.test.Test1.get(Test1.java:61) at com.test.Test1.main(Test1.java:30)hibernate.cfg.xml是這樣配置的.<?xml version='1.0' encoding='utf-8'?><!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN" "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd"><hibernate-configuration>? ? <session-factory>? ? ? ? ?<property name="connection.driver_class">oracle.jdbc.driver.OracleDriver</property>? ? ? ? ? <property name="connection.url">jdbc:oracle:thin:@localhost:1521:orcl</property>? ? ? ? ?<property name="connection.username">scott</property>? ? ? ? ?<property name="connection.password">tiger</property>? ? ? ? ? <property name="dialect">org.hibernate.dialect.Oracle10gDialect</property>? ? ? ? ?<property name="show_sql">true</property>? <mapping resource="com/bean/User.hbm.xml"/> ? ? </session-factory></hibernate-configuration>我看其他同學正確的代碼,我出的問題是在方言那里就執行不下去了. 哪位大俠可以幫我看一下是什么問題嗎是oracle的字符集安裝不好然后導致這部分取不到值? 如果這樣的話,要怎么處理呢.