We can use the useGeneratedKeys and keyProperty attributes to let the database generate the auto_increment column value and set that generated value into one of the input object properties as follows: <insert id="insertStudent" parameterType=…

报错如下: ### Error updating database. Cause: java.lang.IllegalArgumentException: Mapped Statements collection does not contain value for com.xxx.entity.UserMapper.insert ### Cause: java.lang.IllegalArgumentException: Mapped Statements collection does no…

问题一: mybatisPlus完全兼容mybatis,一般来说直接替换掉就可以了,如果mybatis的数据源不能取消创建的话,就注掉mybatisplus的数据源 //@Configurationpublic class DataSourceConfig {// @Bean(name="dataSource2")// @ConfigurationProperties(prefix="spring.datasource") public DataSource dat…

1.检查sqlsession配置,在applicationContext文件中.检查mybatis配置文件. 2.检查TransDispatchingMapper.java 是接口类,无注解. 3.TransDispatchingMapper.xml的命名空间就是TransDispatchingMapper接口类的地址,这个不能写错,否则会报错. 4.xml文件格式要求严格,如大于号,小于号,注释符号多了几个--,文件第一行留有空格,${}写错成中括号等,都会报错,所以除了仔细还是仔细,在开发过…

原因是mapper.xml中定义了相同的两个方法…

用mybaits 写一个关联查询 查询商品表关联商品规格表,并查询规格表中的数量.价格等,为了sql重用性,利用 association 节点 查询 结果并赋值报错 商品表的mapper文件为GooodsMapper.xml 规格表的mapper 文件为GoodsSpecificationsMapper.xml java.lang.IllegalArgumentException: Mapped Statements collection does not contain value for m…

详细错误信息: org.apache.ibatis.exceptions.PersistenceException: ### Error updating database. Cause: java.lang.IllegalArgumentException: Mapped Statements collection does not contain value for studentDao.insert ### Cause: java.lang.IllegalArgumentException…

首页 > 精品文库 > mybatis报错Mapped Statements collection does not contain value for com.inter.IOper mybatis报错Mapped Statements collection does not contain value for com.inter.IOper 2015-04-09 浏览(52)   [摘要:正在顺序挪用IOperation接心中的getAllItems方式时,涌现了以下毛病: Excepti…

Error querying database. Cause: java.lang.IllegalArgumentException: Mapped Statements collection does not contain value for mapper.BatchCustomer.findBatchCustomerOneToOne### Cause: java.lang.IllegalArgumentException: Mapped Statements collection does…

报错Mapped Statements collection does not contain value for com.atguigu.mybatis.dao.EmployeeMapperPlus 我报错的原因就是select属性值写错了,写成这样了. select="com.atguigu.mybatis.dao.EmployeeMapperPlus" 应该写成这样 select="com.atguigu.mybatis.dao.EmployeeMapperPlus.g…