mybatis异常集锦

【Mybatis】报错：Malformed OGNL expression: name!= null and name != ' '

英文感叹号和等号之间不能有空格；

nested exception is org.apache.ibatis.binding.BindingException: Parameter

org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.binding.BindingException: Parameter 'productCode' not found. Available parameters are [prdRuleStageEntity, param1]

int updatePrdRuleStageEntity(Param("prdRuleStageEntity") PrdRuleStageEntity prdRuleStageEntity);

原因是mapper不应该有带参数的注解。在xml中已经指定了parameter，就不要写@param

invalid comparison: java.util.Date and java.lang.String

org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.PersistenceException: 
### Error updating database.  Cause: java.lang.IllegalArgumentException: invalid comparison: java.util.Date and java.lang.String
### Cause: java.lang.IllegalArgumentException: invalid comparison: java.util.Date and java.lang.String

原来这是mybatis 3.3.0中对于时间参数进行比较时的一个bug. 如果拿传入的时间类型参数与空字符串''进行对比判断则会引发异常.

<if test="createTime != null and createTime !='' " >
date(create_time) = date(#{createTime,jdbcType=TIMESTAMP})
</if>
改为


<if test="createTime != null">
date(create_time) = date(#{createTime,jdbcType=TIMESTAMP})
</if>

mybatis异常invalid comparison: java.util.Date and java.lang.String

Mybatis报错：There is no getter for property named 'xxxx' in 'class xxxx

一来是检查model中拼写是否错误，二来是检查映射的map是否正确

mybatis异常集锦

【Mybatis】报错：Malformed OGNL expression: name!= null and name != ' '

nested exception is org.apache.ibatis.binding.BindingException: Parameter

invalid comparison: java.util.Date and java.lang.String

Mybatis报错：There is no getter for property named 'xxxx' in 'class xxxx

解决org.apache.ibatis.binding.BindingException: Invalid bound statement (not found)问题

这是一个很容易忽视的点，记住：接口名与Mybatis的映射文件名一定要一模一样。