- 浏览: 243695 次
- 性别:
- 来自: 北京
文章分类
- 全部博客 (281)
- hibernate (16)
- sql工具 (2)
- eclipse (15)
- tomcat (13)
- 项目部署 (4)
- java (62)
- spring (15)
- EL (1)
- javascript (8)
- 正则表达式 (1)
- jQuery (4)
- mysql (15)
- jstl (1)
- jsp (1)
- eclipse,eclipse插件 (1)
- svn (4)
- java,resin (1)
- jdbc (1)
- jdk (2)
- android (21)
- resin (3)
- php (3)
- 其他 (2)
- 数据库 (2)
- cas单点登录 (2)
- 邮箱激活 (1)
- jad (1)
- 支付 (1)
- struts (1)
- jpa (1)
- struts2 (4)
- json (3)
- oracle (2)
- velocity (1)
- sina微博登陆 (2)
- qq账户登录 (1)
- spring security (1)
- java图片处理 (1)
- http请求 (1)
- cas springsecurity (1)
- freemarker (1)
- cas (6)
- java oauth2 (2)
- oauth2.0 (6)
- springsecurity oauth2 (1)
- sms (1)
- springmvc (2)
- spring aop (1)
- luaeclipse (1)
- cocos2d (1)
- hibernate缓存 (1)
- ibatis (1)
- linux (7)
- 技术网站 (1)
- python (2)
- hadoop (1)
- war3 (0)
- elasticsearch (2)
- jboss (1)
- spring data jpa (2)
- java json (1)
- jsonp (1)
- webservice (4)
- java多线程 (1)
- java加密解密 (1)
- spring task (1)
- java session and cookie (1)
- java nio (1)
- 缓存 (1)
- java大数据 (1)
- cygwin (1)
- 设计模式 (1)
- mybatis (2)
- jquery插件 (2)
- jvm内存溢出 (1)
- drools (1)
- cookie and session (1)
- jvm内存设置 (1)
- nginx (1)
- 微信 (1)
- extjs (1)
- redis (7)
- memcached (1)
- js闭包 (1)
- js (0)
- mongodb (3)
- dubbo (2)
- jdk版本问题 (1)
- opnfire (1)
- git (1)
- jsp视频播放 (1)
- 国际化 (1)
- 后台管理 (1)
- yum (1)
- k (1)
- 算法 (0)
- jvm优化 (1)
- java检测 (1)
- maven操作 (0)
- ios打包 (1)
- 网络通信 (1)
- node.js (1)
- maven (4)
- 消息队列 (2)
- springcloud (6)
- mq (2)
- idea (3)
- log4j (1)
- docker (4)
- editplus (1)
- springboot (1)
- Kubernetes (1)
- jenkins (1)
- websocket (1)
- thirft (1)
- strom (1)
- postman (1)
- kafka (1)
- 线程池 (1)
- JVisualVM (1)
- java反射 (1)
- shell (1)
- java8 (2)
- i18 (1)
- jvm (0)
- nio (1)
- nodejs (1)
- idea java (1)
最新评论
-
pengfeifei26:
wbzhaohl 写道这个有解决方案没有时间长了,貌似有点忘了 ...
A redirect is required to get the users approval -
wbzhaohl:
这个有解决方案没有
A redirect is required to get the users approval -
somebody:
恩。好吧。这个只有在 还没发布的 2.0 版本才有。
oauth2.0设置自动授权
Caused by: java.lang.NoClassDefFoundError: javassist/bytecode/ClassFile
解决办法:
Caused by: java.lang.NoClassDefFoundError: javassist/bytecode/ClassFile 异常,添加javassist-3.4.jar就可以解决
javax.persistence.PersistenceException: [PersistenceUnit: wonder] Unable to build EntityManagerFactory
at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:911)
at org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:57)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:51)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:33)
at com.wonderad.test.UserTest.save(UserTest.java:15)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.junit.internal.runners.TestMethodRunner.executeMethodBody(TestMethodRunner.java:99)
at org.junit.internal.runners.TestMethodRunner.runUnprotected(TestMethodRunner.java:81)
at org.junit.internal.runners.BeforeAndAfterRunner.runProtected(BeforeAndAfterRunner.java:34)
at org.junit.internal.runners.TestMethodRunner.runMethod(TestMethodRunner.java:75)
at org.junit.internal.runners.TestMethodRunner.run(TestMethodRunner.java:45)
at org.junit.internal.runners.TestClassMethodsRunner.invokeTestMethod(TestClassMethodsRunner.java:71)
at org.junit.internal.runners.TestClassMethodsRunner.run(TestClassMethodsRunner.java:35)
at org.junit.internal.runners.TestClassRunner$1.runUnprotected(TestClassRunner.java:42)
at org.junit.internal.runners.BeforeAndAfterRunner.runProtected(BeforeAndAfterRunner.java:34)
at org.junit.internal.runners.TestClassRunner.run(TestClassRunner.java:52)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:38)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:460)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:673)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:386)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196)
Caused by: org.hibernate.HibernateException: JDBC Driver class not found: com.mysql.jdbc.Driver
at org.hibernate.connection.DriverManagerConnectionProvider.configure(DriverManagerConnectionProvider.java:89)
at org.hibernate.connection.ConnectionProviderFactory.newConnectionProvider(ConnectionProviderFactory.java:143)
at org.hibernate.ejb.InjectionSettingsFactory.createConnectionProvider(InjectionSettingsFactory.java:51)
at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:91)
at org.hibernate.cfg.Configuration.buildSettingsInternal(Configuration.java:2833)
at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:2829)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1840)
at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:902)
... 24 more
Caused by: java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:169)
at org.hibernate.util.ReflectHelper.classForName(ReflectHelper.java:192)
at org.hibernate.connection.DriverManagerConnectionProvider.configure(DriverManagerConnectionProvider.java:84)
... 31 more
解决:加入mysql驱动
3.
java.lang.NoClassDefFoundError: org/apache/commons/collections/map/LRUMap
at org.hibernate.util.SimpleMRUCache.init(SimpleMRUCache.java:71)
at org.hibernate.util.SimpleMRUCache.<init>(SimpleMRUCache.java:55)
at org.hibernate.engine.query.QueryPlanCache.<init>(QueryPlanCache.java:76)
at org.hibernate.impl.SessionFactoryImpl.<init>(SessionFactoryImpl.java:237)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1842)
at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:902)
at org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:57)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:51)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:33)
at com.wonderad.test.UserTest.save(UserTest.java:15)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.junit.internal.runners.TestMethodRunner.executeMethodBody(TestMethodRunner.java:99)
at org.junit.internal.runners.TestMethodRunner.runUnprotected(TestMethodRunner.java:81)
at org.junit.internal.runners.BeforeAndAfterRunner.runProtected(BeforeAndAfterRunner.java:34)
at org.junit.internal.runners.TestMethodRunner.runMethod(TestMethodRunner.java:75)
at org.junit.internal.runners.TestMethodRunner.run(TestMethodRunner.java:45)
at org.junit.internal.runners.TestClassMethodsRunner.invokeTestMethod(TestClassMethodsRunner.java:71)
at org.junit.internal.runners.TestClassMethodsRunner.run(TestClassMethodsRunner.java:35)
at org.junit.internal.runners.TestClassRunner$1.runUnprotected(TestClassRunner.java:42)
at org.junit.internal.runners.BeforeAndAfterRunner.runProtected(BeforeAndAfterRunner.java:34)
at org.junit.internal.runners.TestClassRunner.run(TestClassRunner.java:52)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:38)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:460)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:673)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:386)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196)
Caused by: java.lang.ClassNotFoundException: org.apache.commons.collections.map.LRUMap
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
... 30 more
解决:
解决:在commons-collections-2.1.1.jar包中找到了LRUMap.class文件但他没在map文件夹下而是直接放在了collections下。后来换了个包commons-collections-3.1.jar.问题解决。
4.
java.lang.NoClassDefFoundError: javax/persistence/spi/ProviderUtil
错误原因以及解决方法:
使用了hibernate3.5以上的版本,这些需要导入一个包:
hibernate-jpa-2.0-api-1.0.0-CR-1.jar
5.
java.lang.NoSuchMethodError: org.slf4j.helpers.MessageFormatter.format
包冲突:
使用以下包,将多的删除!
slf4j-api 1.6.*
slf4j-log4j12 1.6.*
log4j 1.2.16+
将activemq-all-5.5.0.jar 删除
6
java.lang.NoClassDefFoundError: javax/transaction/SystemException解决方法,缺少次 jta.jar 包
http://blog.csdn.net/zhixiang2010/article/details/17679005 缓存详解
解决办法:
Caused by: java.lang.NoClassDefFoundError: javassist/bytecode/ClassFile 异常,添加javassist-3.4.jar就可以解决
javax.persistence.PersistenceException: [PersistenceUnit: wonder] Unable to build EntityManagerFactory
at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:911)
at org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:57)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:51)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:33)
at com.wonderad.test.UserTest.save(UserTest.java:15)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.junit.internal.runners.TestMethodRunner.executeMethodBody(TestMethodRunner.java:99)
at org.junit.internal.runners.TestMethodRunner.runUnprotected(TestMethodRunner.java:81)
at org.junit.internal.runners.BeforeAndAfterRunner.runProtected(BeforeAndAfterRunner.java:34)
at org.junit.internal.runners.TestMethodRunner.runMethod(TestMethodRunner.java:75)
at org.junit.internal.runners.TestMethodRunner.run(TestMethodRunner.java:45)
at org.junit.internal.runners.TestClassMethodsRunner.invokeTestMethod(TestClassMethodsRunner.java:71)
at org.junit.internal.runners.TestClassMethodsRunner.run(TestClassMethodsRunner.java:35)
at org.junit.internal.runners.TestClassRunner$1.runUnprotected(TestClassRunner.java:42)
at org.junit.internal.runners.BeforeAndAfterRunner.runProtected(BeforeAndAfterRunner.java:34)
at org.junit.internal.runners.TestClassRunner.run(TestClassRunner.java:52)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:38)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:460)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:673)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:386)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196)
Caused by: org.hibernate.HibernateException: JDBC Driver class not found: com.mysql.jdbc.Driver
at org.hibernate.connection.DriverManagerConnectionProvider.configure(DriverManagerConnectionProvider.java:89)
at org.hibernate.connection.ConnectionProviderFactory.newConnectionProvider(ConnectionProviderFactory.java:143)
at org.hibernate.ejb.InjectionSettingsFactory.createConnectionProvider(InjectionSettingsFactory.java:51)
at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:91)
at org.hibernate.cfg.Configuration.buildSettingsInternal(Configuration.java:2833)
at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:2829)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1840)
at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:902)
... 24 more
Caused by: java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:169)
at org.hibernate.util.ReflectHelper.classForName(ReflectHelper.java:192)
at org.hibernate.connection.DriverManagerConnectionProvider.configure(DriverManagerConnectionProvider.java:84)
... 31 more
解决:加入mysql驱动
3.
java.lang.NoClassDefFoundError: org/apache/commons/collections/map/LRUMap
at org.hibernate.util.SimpleMRUCache.init(SimpleMRUCache.java:71)
at org.hibernate.util.SimpleMRUCache.<init>(SimpleMRUCache.java:55)
at org.hibernate.engine.query.QueryPlanCache.<init>(QueryPlanCache.java:76)
at org.hibernate.impl.SessionFactoryImpl.<init>(SessionFactoryImpl.java:237)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1842)
at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:902)
at org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:57)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:51)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:33)
at com.wonderad.test.UserTest.save(UserTest.java:15)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.junit.internal.runners.TestMethodRunner.executeMethodBody(TestMethodRunner.java:99)
at org.junit.internal.runners.TestMethodRunner.runUnprotected(TestMethodRunner.java:81)
at org.junit.internal.runners.BeforeAndAfterRunner.runProtected(BeforeAndAfterRunner.java:34)
at org.junit.internal.runners.TestMethodRunner.runMethod(TestMethodRunner.java:75)
at org.junit.internal.runners.TestMethodRunner.run(TestMethodRunner.java:45)
at org.junit.internal.runners.TestClassMethodsRunner.invokeTestMethod(TestClassMethodsRunner.java:71)
at org.junit.internal.runners.TestClassMethodsRunner.run(TestClassMethodsRunner.java:35)
at org.junit.internal.runners.TestClassRunner$1.runUnprotected(TestClassRunner.java:42)
at org.junit.internal.runners.BeforeAndAfterRunner.runProtected(BeforeAndAfterRunner.java:34)
at org.junit.internal.runners.TestClassRunner.run(TestClassRunner.java:52)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:38)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:460)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:673)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:386)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196)
Caused by: java.lang.ClassNotFoundException: org.apache.commons.collections.map.LRUMap
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
... 30 more
解决:
解决:在commons-collections-2.1.1.jar包中找到了LRUMap.class文件但他没在map文件夹下而是直接放在了collections下。后来换了个包commons-collections-3.1.jar.问题解决。
4.
java.lang.NoClassDefFoundError: javax/persistence/spi/ProviderUtil
错误原因以及解决方法:
使用了hibernate3.5以上的版本,这些需要导入一个包:
hibernate-jpa-2.0-api-1.0.0-CR-1.jar
5.
java.lang.NoSuchMethodError: org.slf4j.helpers.MessageFormatter.format
包冲突:
使用以下包,将多的删除!
slf4j-api 1.6.*
slf4j-log4j12 1.6.*
log4j 1.2.16+
将activemq-all-5.5.0.jar 删除
6
java.lang.NoClassDefFoundError: javax/transaction/SystemException解决方法,缺少次 jta.jar 包
http://blog.csdn.net/zhixiang2010/article/details/17679005 缓存详解
发表评论
-
二叉树创建和遍历
2015-03-30 22:10 670package test; import java. ... -
solr使用
2015-03-08 12:31 0http://www.52menshao.com/conten ... -
hibernate连多个库及session操作
2014-06-06 16:19 622http://www.blogjava.net/yzzh9/a ... -
java 对xml进行sax解析
2014-04-25 14:28 800import java.util.ArrayList; ... -
关于算法
2014-03-31 18:48 391http://bbs.csdn.net/topics/3907 ... -
java js 插件
2014-03-27 16:08 334http://www.malot.fr/bootstrap-d ... -
关于java模式
2014-03-13 17:04 284http://gxl-ct001.iteye.com/blog ... -
关于秒杀
2014-02-25 18:47 0http://www.blogjava.net/dongbul ... -
Spring 使用注解方式进行事务管理
2014-01-18 15:33 666事物注解方式: @Transactional 当标于类前时, ... -
Transaction rolled back because it has been marked as rollback-only
2014-01-16 15:02 627http://narcissusoyf.iteye.com/b ... -
An internal error occurred during: "Fetching children of Database".
2014-01-14 17:50 1426An internal error occurred duri ... -
json格式时间转java时间
2014-01-08 16:17 1048http://surongly.iteye.com/blog/ ... -
Java时间日期格式转换
2014-01-03 18:26 466http://blog.csdn.net/Miniyaner/ ... -
JAVA调用sms
2014-01-03 16:15 437http://sms.webchinese.cn/api.sh ... -
oauth2.0 accesstoken验证无效处理类
2013-12-24 19:20 1104org.springframework.security.oa ... -
oauth2.0设置自动授权
2013-12-24 19:12 1399将 oauth_client_details 库表中autoa ... -
刷新access_token 类
2013-12-24 18:52 650刷新access_token 类 先删除掉库里保存的记录,然 ... -
oauth2.0怎么验证accesstoken是否正确或合法
2013-12-24 18:05 2164验证access_token流程 OAuth2Authent ... -
怎么样判断accesstoken是否过期
2013-12-24 18:02 1799用code去换取token的时候,会返回三个参数:现在的acc ... -
hibernate异常:failed to lazily initialize a collection of role
2013-12-18 11:21 717设置lazy即可 private Set<UrsMem ...
相关推荐
【标题】与【描述】提及的是“Hibernate面试题专栏”,主要涵盖了全面的Hibernate面试题、笔试题以及相关问题,这表明我们将要讨论的是Java领域中著名的对象关系映射框架——Hibernate的相关知识。Hibernate是一个...
\Hibernate 问题集锦.docx
这个问题在"Hibernate相关jar包括新版本jdk不兼容旧版本的jar.zip"这个压缩包中被提及,表明其中可能包含了针对这种兼容性问题的解决方案。 首先,我们需要理解为什么新版本的JDK可能导致与Hibernate的不兼容性。...
由于具体问题未明确,我们将探讨一些常见的Hibernate问题及其解决方法。 【标签】:“hibernate ppt 有问题 www.willvc.com.cn 能联系到我” 这里的标签再次强调了问题的核心,即与Hibernate相关的PPT内容存在困惑...
在培训中,会通过案例分析,如招聘面试中的Hibernate问题和失败项目的教训,来帮助学员深入理解Hibernate的实际应用。这包括了解Hibernate的架构,掌握实体、会话、查询等核心概念,以及如何配置和使用...
在开发Java Web应用程序时,Spring和...通过以上步骤和策略,大多数Spring与Hibernate的包冲突问题都可以得到解决。在实际开发过程中,应始终关注框架的新版本和官方文档,以便获取最新的兼容性和最佳实践信息。
15. 错误处理和优化:学习如何调试常见的Hibernate问题,如N+1查询问题、懒加载异常等,以及如何进行性能调优,如合理设置缓存策略、避免过多的JOIN操作等。 以上就是《精通Hibernate》学习中涉及的主要知识点。...
这主要是为了解决内存的不稳定性和容量限制问题,并满足业务数据共享、大规模数据检索和数据管理的需求。 在企业级应用中,对象序列化适合少量对象的持久化,但不符合大规模查询和长时间保存的需求。因此,除了对象...
8. **查询优化**:避免N+1查询问题,使用JOIN fetch提前加载关联数据,使用HQL或JPQL替代原生SQL以利用Hibernate的优化能力。 9. **错误处理和日志记录**:理解Hibernate常见的错误和异常,如 detached entity ...
《基于SpringMvc+Hibernate的问题管理系统实现详解》 在IT领域,高效的问题管理是任何软件开发团队不可或缺的一部分。本文将深入探讨如何使用SpringMvc和Hibernate这两个强大的框架,构建一个功能完善的问题管理...
二级缓存则是在多个`Session`间共享的,可以提高数据读取效率,但需谨慎使用以防止数据一致性问题。 8. **持久化类和映射文件**:持久化类是与数据库表对应的Java类,通常包含一些特定的注解或XML映射文件...
《Hibernate需要注意的问题与数据源配置详解》 在Java企业级开发中,Hibernate作为一种流行的ORM(对象关系映射)框架,极大地简化了数据库操作。然而,使用Hibernate的过程中,开发者需要特别注意一些关键点,以...
3. **文档**:如用户指南、API文档,帮助开发者快速上手和解决问题。 4. **示例**:包含了一些演示如何使用Hibernate的代码示例,有助于理解其用法。 5. **配置文件**:可能有默认的配置模板,展示如何配置Hibernate...
《深入剖析Hibernate 3.2源代码...通过深入学习Hibernate 3.2的源代码,开发者不仅可以了解其实现原理,还能在遇到问题时更快定位,进行定制化开发。同时,这也有助于理解ORM框架的工作方式,提升软件设计和开发能力。
为了解决这一问题,两个工具——hibernate-extensions和Middlegen-Hibernate应运而生,它们可以自动生成这些代码,提高了开发效率。 **hibernate-extensions** 是Hibernate框架的一个扩展,它提供了一些额外的功能...
然而,在使用Hibernate时,可能会遇到事务回滚失败的问题,本文将详细介绍该问题的原因和解决方法。 一、问题描述 在使用Hibernate时,可能会遇到以下错误信息: Could not roll back Hibernate transaction; ...
【Hibernate更新问题详解】 Hibernate,一个强大的Java对象关系映射(ORM)框架,极大地简化了数据库操作。在处理数据更新时,Hibernate提供了多种方法,但同时也可能会遇到一些常见问题。本篇文章将深入探讨...
同时,作者也邀请用户在遇到问题时到其个人空间留言咨询,显示出开发者愿意分享和解答疑惑的态度,有助于初学者解决在使用过程中可能遇到的问题。 【标签】"3 Hibernate 源代码" 提示我们,这个项目使用了Hibernate...