mybatis报错 Error instantiating interface com.atguigu.mybatis.dao.DepartmentMapper with invalid types () or values ()

错因在于把

<association property="dept"
select="com.atguigu.mybatis.dao.DepartmentMapper.getDeptById"
column="d_id">
</association>

写成了

<association property="dept"
javaType="com.atguigu.mybatis.dao.DepartmentMapper" column="d_id">
</association>

初学mybatis的鉴别器，不懂，所以搞错。

完整报错如下所示：

org.apache.ibatis.exceptions.PersistenceException:
### Error querying database. Cause: org.apache.ibatis.reflection.ReflectionException: Error instantiating interface com.atguigu.mybatis.dao.DepartmentMapper with invalid types () or values (). Cause: java.lang.NoSuchMethodException: com.atguigu.mybatis.dao.DepartmentMapper.<init>()
### The error may exist in com/atguigu/mybatis/dao/EmployeeMapperPlus.xml
### The error may involve com.atguigu.mybatis.dao.EmployeeMapperPlus.getEmpByIdStep
### The error occurred while handling results
### SQL: select * from tbl_employee where id=?
### Cause: org.apache.ibatis.reflection.ReflectionException: Error instantiating interface com.atguigu.mybatis.dao.DepartmentMapper with invalid types () or values (). Cause: java.lang.NoSuchMethodException: com.atguigu.mybatis.dao.DepartmentMapper.<init>()
at org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:30)
at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:150)
at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:141)
at org.apache.ibatis.session.defaults.DefaultSqlSession.selectOne(DefaultSqlSession.java:77)
at org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:82)
at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:53)
at com.sun.proxy.$Proxy9.getEmpByIdStep(Unknown Source)
at com.atguigu.mybatis.test.MyBatisTest.test05(MyBatisTest.java:222)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:678)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)
Caused by: org.apache.ibatis.reflection.ReflectionException: Error instantiating interface com.atguigu.mybatis.dao.DepartmentMapper with invalid types () or values (). Cause: java.lang.NoSuchMethodException: com.atguigu.mybatis.dao.DepartmentMapper.<init>()
at org.apache.ibatis.reflection.factory.DefaultObjectFactory.instantiateClass(DefaultObjectFactory.java:90)
at org.apache.ibatis.reflection.factory.DefaultObjectFactory.create(DefaultObjectFactory.java:50)
at org.apache.ibatis.reflection.factory.DefaultObjectFactory.create(DefaultObjectFactory.java:42)
at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.createResultObject(DefaultResultSetHandler.java:597)
at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.createResultObject(DefaultResultSetHandler.java:574)
at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.getRowValue(DefaultResultSetHandler.java:853)
at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.applyNestedResultMappings(DefaultResultSetHandler.java:907)
at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.getRowValue(DefaultResultSetHandler.java:862)
at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.handleRowValuesForNestedResultMap(DefaultResultSetHandler.java:825)
at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.handleRowValues(DefaultResultSetHandler.java:311)
at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.handleResultSet(DefaultResultSetHandler.java:286)
at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.handleResultSets(DefaultResultSetHandler.java:183)
at org.apache.ibatis.executor.statement.PreparedStatementHandler.query(PreparedStatementHandler.java:64)
at org.apache.ibatis.executor.statement.RoutingStatementHandler.query(RoutingStatementHandler.java:79)
at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:63)
at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:324)
at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:156)
at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:109)
at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:83)
at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:148)
... 29 more
Caused by: java.lang.NoSuchMethodException: com.atguigu.mybatis.dao.DepartmentMapper.<init>()
at java.lang.Class.getConstructor0(Class.java:3082)
at java.lang.Class.getDeclaredConstructor(Class.java:2178)
at org.apache.ibatis.reflection.factory.DefaultObjectFactory.instantiateClass(DefaultObjectFactory.java:62)
... 48 more

mybatis报错 Error instantiating interface com.atguigu.mybatis.dao.DepartmentMapper with invalid types () or values ()的更多相关文章

  1. 使用mybatis报错constructor found in com.atguigu.mybatis.bean.Department matching [java.lang.Integer, java.lang.String]

    报错constructor found in com.atguigu.mybatis.bean.Department matching [java.lang.Integer, java.lang.St ...

  2. idea 下 启动maven项目，mybatis报错 Error parsing SQL Mapper Configuration. Cause: java.io.IOException。。。。。

    我的具体报错日志是   Error parsing SQL Mapper Configuration. Cause: java.io.IOException  Could not find resou ...

  3. 报错org.apache.ibatis.binding.BindingException: Type interface com.atguigu.mybatis.bean.dao.EmployeeMapper is not known to the MapperRegistry.

    报错org.apache.ibatis.binding.BindingException: Type interface com.atguigu.mybatis.bean.dao.EmployeeMa ...

  4. Error instantiating class cn.edu.zju.springmvc.pojo.Items with invalid types () or values (). 报错解决方法

    org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.reflection.Reflecti ...

  5. MySQL报错ERROR 1558 (HY000): Column count of mysql.user is wrong.

    MySQL报错ERROR 1558 (HY000): Column count of mysql.user is wrong. 1.今天在使用MySQL创建数据库时出现如下报错: mysql> ...

  6. oracle+mybatis报错：BindingException("Invalid bound statement (not found): ")

    oracle+mybatis报错:BindingException("Invalid bound statement (not found): ") 从mysql转到oracle数 ...

  7. mybatis报错：A query was run and no Result Maps were found for the Mapped Statement、、Property [login_ip] not found on type [com.thinkgem.jeesite.common.permission.entity.PremissUser]问题解决

    今天在做ssm项目的时候出现了: 先是出现 了错误: mybatis报错:A query was run and no Result Maps were found for the Mapped St ...

  8. Mybatis 报错

    Mybatis 报错 builder.BuilderException: Error parsing SQL Mapper Configuration Caused by: org.apache.ib ...

  9. Mybatis 报错java.sql.SQLException: No suitable driver found for http://www.example.com

    运行项目报错 Error querying database. Cause: java.sql.SQLException: No suitable driver found for http://ww ...

随机推荐

  1. SQLSERVER 创建索引实现代码

    是SQL Server编排数据的内部方法.它为SQL Server提供一种方法来编排查询数据 什么是索引 拿汉语字典的目录页(索引)打比方:正如汉语字典中的汉字按页存放一样,SQL Server中的数 ...

  2. Elasticsearch集群 管理

    第7章 深入Elasticsearch集群 启动一个Elasticsearch节点时,该节点会开始寻找具有相同集群名字并且可见的主节点.如 果找到主节点,该节点加入一个已经组成了的集群:如果没有找到, ...

  3. 分布式计算 要不要把写日志独立成一个Server Remote Procedure Call Protocol

    w https://en.wikipedia.org/wiki/Remote_procedure_call In distributed computing a remote procedure ca ...

  4. work_log

    机房搬迁 1. 虚拟机-à实体机 2. ldap 服务器 3. 考勤数据服务器 4. glpi 权限管理. 5. 备份脚本. 6. 试验jira重新启动. Luke--- 1,报价文档,相关技术者,技 ...

  5. .net ASPxGridView 使用手记

    统计汇总功能: TotalSummary属性:此属性必须设置KeyFieldName属性:Settings中的ShowFooter属性设置为True. DisplayFormat:同.net中的Str ...

  6. rest_framework 响应器

    一 作用 根据 用户请求URL 或 用户可接受的类型,筛选出合适的 渲染组件.用户请求URL:    http://127.0.0.1:8000/test/?format=json    http:/ ...

  7. Mac 启动和关闭rabbitmq

    1.安装 brew install rabbitmq 2.启动及关闭RabbitMQ服务 前台启动 sudo ./rabbitmq-server    或 sudo su/usr/local/Cell ...

  8. 怎么找出解析失败的sql

    本文由我和公司同事问心共同测试分析完成. 很多时候我们会有这样一个误区,语法错误或者对象不存在应该在语法语义检查这个步骤就结束了,怎么还会存在共享池里面呢?带着这个几个问题我们做几个简单的测试. 我们 ...

  9. python16_day10【SelectWeb、SelectWget、paramiko、pymysql】

    一.select实现Web框架(自定义WEB框架) 浏览器输入:http://127.0.0.1:8888/index.html import select import socket class F ...

  10. python连接mongo

    连接mongodb数据库 用到pymongo模块 应该是这样来使用: , 'goods') 然后连接数据库层这么写 def getSpinfo(item,value,depart,comp): res ...