在使用hibernate框架里面的:saveOrUpdate报错: 意思就是另一个对象的id(id同值)已经被session关联了. 原因分析: 在第1步中中通过titleList.get(0)获取一个对象duty1,在第2步中将duty的dutyId设置成duty1的dutyId,而duty1本来就是存在一级缓存session里面的,在第3步时saveOrUpdate(duty)相当于内存中存在两个dutyId一样的对象,因此抛出异常. 解决方法: 如果dao或Service类继承了Hiber…

转自:https://blog.51cto.com/chengxuyuan/1786938 org.springframework.dao.DuplicateKeyException: a different object with the same identifier value was already associated with the session: [com.sinosoft.claim.schema.model.PrpLlossInfo#REG13552269089070];…

异常信息: org.springframework.dao.InvalidDataAccessApiUsageException: The given object has a null identifier: com.blog.entity.PersonalizedSettings; nested exception is org.hibernate.TransientObjectException: The given object has a null identifier: com.bl…

org.springframework.dao.DuplicateKeyException: PreparedStatementCallback; SQL [insert into account values(?,?,?)Duplicate entry '3' for key 'PRIMARY'; nested exception is com.mysql.jdbc.exceptions.jdbc4.MySQLIntegrityConstraintViolationException: Dup…

java.lang.RuntimeException: org.springframework.dao.DuplicateKeyException: ### Error updating database. Cause: com.mysql.jdbc.exceptions.jdbc4.MySQLIntegrityConstraintViolationException: Duplicate entry '149187842867995' for key 'PRIMARY'### The erro…

在使用模型驱动封装的时候,要保证表单中name属性名和类中属性名一致,否则将会报错如下: HTTP Status 500 - The given object has a null identifier: cn.itcast.entity.Customer; nested exception is org.hibernate.TransientObjectException: The given object has a null identifier: cn.itcast.entity.Cus…

public Wcrash getWcrashInfo(int id) { String sql = "select plateform_id,android_version,app_version_code,app_version_name,device_id," + "model,brand,product,stack_trace,crash_date,package_name from wcrash where id = ? "; return this.jd…

Caused by: java.lang.ClassNotFoundException: org.springframework.dao.DataIntegrityViolationException     at java.net.URLClassLoader$1.run(Unknown Source)     at java.security.AccessController.doPrivileged(Native Method)     at java.net.URLClassLoader…

数据库用的hibernate,开发工具用的myeclipse,使用开发工具连接数据库生成hibernate基于xml的po类,运行时报org.springframework.dao.DataIntegrityViolationException 并且提示某个字段  not—null: 解决,查看了数据库字段类型为number类型,将生成的po对应字段改写成Integer类型,原因:开发工具生成的类型,与数据库number类型对象,但是如果数据是0会被过滤, 而Integer数据int的包装类型,…

org.springframework.dao.InvalidDataAccessApiUsageException: Write operations are not allowed in read-only mode (FlushMode.NEVER) - turn your Session into FlushMode.AUTO or remove 'readOnly' marker from transaction definition 解决办法: 在执行service中一个方法bume…