项目实施方案怎么写:Hibernate配置常见异常
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1.问题:Exception in thread "main" java.lang.NoClassDefFoundError: org/dom4j/DocumentException
at HibernateTest.main(HibernateTest.java:14)
方法:添加dom4j.jar(解析hibernate.cfg.xml文件)
2.问题:Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/commons/logging/LogFactory
at org.hibernate.cfg.Configuration.
at HibernateTest.main(HibernateTest.java:14)
方法:添加commons-logging.jar(记录解析过程)
3.问题:Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/commons/collections/SequencedHashMap
方法:添加commons-collections.jar(在解析映射文件时,需要把所有持久化对象的定义放在一个HashMap中)
4.问题:Exception in thread "main" java.lang.NoClassDefFoundError: net/sf/ehcache/CacheException
方法:添加ehcache.jar(高速缓存,提高存取速度)
5.问题:2009-2-22 23:45:40 net.sf.ehcache.config.Configurator configure
警告: No configuration found. Configuring ehcache from ehcache-failsafe.xml found in the classpath: jar:file:/F:/MyJava/Hibernate/lib/ehcache-1.1.jar!/ehcache-failsafe.xml
Exception in thread "main" java.lang.NoClassDefFoundError
方法:把ehcache-1.1.jar解压,把其中的ehcache-failsafe.xml改成ehcache.xml。
6.问题:Caused by: java.lang.ClassNotFoundException: net.sf.cglib.transform.impl.InterceptFieldEnabled
方法:添加cglib-full-2.0.02.jar
7.问题:Caused by: java.lang.NoSuchMethodError: net.sf.cglib.proxy.Enhancer.setInterceptDuringConstruction(Z)V
方法:添加cglib-nodep-2.1_3.jar
8.问题:Exception in thread "main" java.lang.NoClassDefFoundError: javax/transaction/Synchronization
方法:添加jta.jar(事务处理)
9.问题:Exception in thread "main" java.lang.NoClassDefFoundError: antlr/ANTLRException
方法:添加antlr-2.7.5h3.jar
10问题:Caused by: java.sql.SQLException: The statement (1) has no open cursor.
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2901)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:773)
方法:
11.问题:Exception in thread "main" java.lang.NoClassDefFoundError: net/sf/cglib/proxy/CallbackFilter
方法;把 cglib.jar 添加到 目录下面去!
12.问题:java.lang.NoClassDefFoundError:?org/objectweb/asm/Type
方法:将cglib-nodep-2.1_3.jar 添加到 目录下面去!
13.java.lang.NoClassDefFoundError: javax/persistence/Cacheable
解决:hibernate-jpa-2.0-api-1.0.1.Final.jar
14.org.hibernate.HibernateException: 'hibernate.dialect' must be set when no Connection available
未解决
15.org.hibernate.HibernateException: Unable to instantiate default tuplizer [org.hibernate.tuple.entity.PojoEntityTuplizer]
解决:hibernate-jpa-2.0-api-1.0.1.Final.jar