hibernate class cast exception from object to ...

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hibernate class cast exception from object to ...

http://stackoverflow.com/questions/22548325/java-lang-classcastexception-cannot-be-cast-to-java-lang-integer When you select specific columns from DB, the result you get is not the entity object, but an Object[], with each element of array holding di…

Error creating bean with name 'com.cloud.feign.interfaces.xxxFeignClient': FactoryBean threw exception on object creation; nested exception is java.lang.IllegalSt.PathVariable annotation was empty on

环境: Spring Cloud:Finchley.M8 Spring Boot:2.0.0.RELEASE 报错信息: Error creating bean with name 'com.cloud.feign.interfaces.xxxFeignClient': FactoryBean threw exception on object creation; nested exception is java.lang.IllegalSt.PathVariable annotation wa…

Hibernate错误：Exception in thread "main" org.hibernate.exception.SQLGrammarException: Could not execute JDBC batch update

报错:Exception in thread "main" org.hibernate.exception.SQLGrammarException: Could not execute JDBC batch update 解决方法,把数据库方言MySQLInnoDBDialect改成MySQLDialect就可以了.…

hibernate 异常:Unexpected Exception caught setting

异常信息:Unexpected Exception caught setting 'outHeight' on 'class com.srpm.core.project.seismicFortification.action.SeismicFortificationAction: Error setting expression 'outHeight' with value ['isOutHeight', ] 这个异常出现的原因我找了下网上有多个,我知道的有: 1.没有GETTER/SETTER…

Spring Boot启动 Unable to build Hibernate SessionFactory; nested exception is org.hibernate.MappingException: Could not instantiate id generator错误

开始运行得很好的项目,因为前一天高度了项目结构和名称突然报上面的错误查了很多网上资料很多解决方案造成这个错误的原因有很多,例如 1.@Entity 类有变动,无非正常生成对应的数据库. 解决:使用 spring: jpa: hibernate:ddl-auto: create 删除之前的数据库,重新重建数据库 2.变量的类型不对,例如:使用list的变量,就会出现这个错误 3.使用多个@Id注解的方式不正确. 解决:如何使用联合主键(复合主键) 4.@Column(name)的注解与数据库字…