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最新评论
问题描述：
单元测试一个已离职同事的接口，运行时提示 po 类中的某个属性字段的映射找不到
问题分析：
根据描述的异常信息，在类中找到了该属性，set get 均有，mapper.xml 中映射也存在
检查代码版本，历史版本生产环境运行正常，于是对比此次新增的代码
定位到了问题所在，
po 类中 描述用户类型的字段，用的 isXXX
po 类中 又定义了常量 IsXXX 与 属性字段仅仅首字母不同
所以，Mapper.xml 中的文件在做映射处理时，首先映射的是常量的定义的字段，而该字段又没有SET GET ，因而报错
问题总结：
1.常量不要写在PO类中，而要单独写在 constant 类中
2.Boolean 类型的属性，不要以 is开头
单元测试一个已离职同事的接口，运行时提示 po 类中的某个属性字段的映射找不到
问题分析：
根据描述的异常信息，在类中找到了该属性，set get 均有，mapper.xml 中映射也存在
检查代码版本，历史版本生产环境运行正常，于是对比此次新增的代码
定位到了问题所在，
po 类中 描述用户类型的字段，用的 isXXX
po 类中 又定义了常量 IsXXX 与 属性字段仅仅首字母不同
所以，Mapper.xml 中的文件在做映射处理时，首先映射的是常量的定义的字段，而该字段又没有SET GET ，因而报错
问题总结：
1.常量不要写在PO类中，而要单独写在 constant 类中
2.Boolean 类型的属性，不要以 is开头
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发表评论
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Publishing failed with multiple errors file not found
2017-11-10 22:39 816问题场景： Java Web项目 ... -
attempted to return null from a method with a primitive return type (int)
2017-10-25 22:52 3137异常背景 mybatis mapper.xml 中 resul ... -
java.lang.UnsupportedOperationException
2017-10-24 21:42 329异常背景： 遍历集合进行元素删除操作 异常描述： Str ... -
org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named '
2017-10-02 18:33 548问题场景： 启动 Tomcat 时报错，org.spring ... -
为什么运行接口无返回值
2017-10-02 18:08 727问题场景： 与同事共同开发一个项目，调用其开发的接口，未接收 ... -
java.lang.OutOfMemoryError: Java heap space
2017-10-02 18:02 389问题描述： 新来的同事，安装JDK、Eclipse 、Tom ... -
No result defined for action
2017-09-26 21:56 545问题场景： 项目设计模式：SpringMVC 调试程序过程中 ... -
attempted to return null from a method with a primitive return type (double)
2017-09-26 21:58 1506问题场景： 服务启动正常，MyBatis Interface ... -
No matching bean of type dao found for depende
2017-09-26 21:46 822问题场景： 项目设计模式：Spring MVC + MyBat ... -
1030 Got error 28 from storage engine
2016-05-24 22:25 1273现象：调试程序过程中，突然报错，显示数据检索失败，数据库连接超 ... -
org.apache.shiro.session.UnknownSessionException
2015-06-27 18:19 3835问题说明： 背景：系 ... -
java Excel poi exception
2015-06-11 16:41 638一、 问题：java导出Exce ... -
The reference to entity "locale" must end with the ';' delimiter.
2015-06-02 15:12 1778问题： 修改web.xml 文件中的拦击器中的URL后 报错T ... -
xxxList not found
2015-05-20 08:51 628问题：MyBatis接口中以list作为参数类型，在mappe ... -
ERROR: JDWP Unable to get JNI 1.2 environment, jvm->GetEnv() return code = -2 JD
2015-05-17 16:39 576问题：运行单元测试类（比较重载与重写的区别）时报错， ERRO ... -
Result Maps collection already contains value for mapper.XXX
2015-05-14 08:53 2085问题：运行单元测试类时报错 原因：应该用resultMap来 ... -
Unable to find resource
2015-05-13 20:32 698场景： 配合JS调试时，出现上面的异常，且数据可以正常接收，程 ... -
target is null for setProperty
2015-05-13 15:00 691问题：ognl.OgnlException: target i ... -
常用mapper方法
2015-05-11 19:49 6411.insert，表中有时间字段，且字段值为当前时间，可以在m ... -
确认方法没有错误，但查询结果不正确
2015-05-07 09:37 813问题：在调试某web工程时，发现一个po.getXXX()没有 ...
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