在查阅测试环境业务日志中的ERROR级别的日志时,发现了有一个Mybatis相关的异常错误org.apache.ibatis.exceptions.TooManyResultsException: Expected one result (or null) to be returned by selectOne(), but found: 13. 一.分析:详细堆栈信息打印如下 2018-09-30 17:30:17.548 ERROR 14146 --- [DubboServerHandler…

异常信息 Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'tracMang': FactoryBean threw exception on object creation; nested exception is org.apache.ibatis.exceptions.TooManyResultsException: Expected one…

报错的原因翻译出来: 预期的一个结果(或null)返回selectOne(),但发现:3 意思就是你想得到一个结果值,但是返回了三个结果值. 一般可能测试的时候我们存了几条一样的数据,在登录时,会把同用户名数据都返回.但是mapper接口的返回值是一个Bean.所以报错. 解决方法: 可以修改返回值为list,然后获取第一条 或者把数据库中重复的数据删掉.…

详细报错信息: org.apache.ibatis.exceptions.PersistenceException: ### Error querying database. Cause: java.lang.IllegalArgumentException: findAllList is ambiguous in Mapped Statements collection (try using the full name including the namespace, or rename on…

<select id="getUserIn" parameterType="QueryVo" resultMap="userMap"> SELECT <!-- 引用sql片段 --> <include refid="user_sql" /> FROM USER <where> <!-- 遍历pojo传入的集合 collection="in"  要遍历po…

错误信息如下: HTTP Status 500 - org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.PersistenceException: type Exception report message org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis…

在映射文件中,通过parameterType指定输入参数的类型,类型可以是简单类型.hashmap.pojo的包装类型.在测试包装类型过程中产生了一个错误:org.apache.ibatis.exceptions.PersistenceException.错误如下. 映射文件如下: 我们来看着错误提示:There is no getter for property named 'UserCustom' in 'class com.murongtech.mybatis.domain.UserQue…

这个是sql 语句 错误     仔细检查 SQL语句是否写错了 org.apache.ibatis.exceptions.PersistenceException: ### Error querying database. Cause: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds…

数据库 没有开启  连接失败 org.apache.ibatis.exceptions.PersistenceException: ### Error querying database. Cause: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure The last packet sent successfully to the server was 0 milliseco…

org.apache.ibatis.exceptions.PersistenceException:  ### Error building SqlSession. ### The error may exist in cn/itcast/mybatis/mapper/OrdersMapperCustom.xml ### The error occurred while processing mapper_resultMap[OrdersUserResultMap]_association[us…