错误代码：

org.apache.ibatis.exceptions.PersistenceException:
### Error building SqlSession.
### The error may exist in com/jkw100/mybatis/mapper/PatientMapper.xml
### The error occurred while processing mapper_resultMap[BaseResultMap]
### Cause: org.apache.ibatis.builder.BuilderException: Error parsing SQL Mapper Configuration. Cause: org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. Cause: java.lang.IllegalArgumentException: Result Maps collection already contains value for com.jkw100.mybatis.mapper.PatientMapper.BaseResultMap
at org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:30)
at org.apache.ibatis.session.SqlSessionFactoryBuilder.build(SqlSessionFactoryBuilder.java:82)
at org.apache.ibatis.session.SqlSessionFactoryBuilder.build(SqlSessionFactoryBuilder.java:66)
at com.jkw100.mybatis.mapper.PatientMapperTest.setUp(PatientMapperTest.java:22)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:45)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:42)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:27)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:263)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:68)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:47)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222)
at org.junit.runners.ParentRunner.run(ParentRunner.java:300)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
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:675)
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.builder.BuilderException: Error parsing SQL Mapper Configuration. Cause: org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. Cause: java.lang.IllegalArgumentException: Result Maps collection already contains value for com.jkw100.mybatis.mapper.PatientMapper.BaseResultMap
at org.apache.ibatis.builder.xml.XMLConfigBuilder.parseConfiguration(XMLConfigBuilder.java:115)
at org.apache.ibatis.builder.xml.XMLConfigBuilder.parse(XMLConfigBuilder.java:95)
at org.apache.ibatis.session.SqlSessionFactoryBuilder.build(SqlSessionFactoryBuilder.java:80)
... 25 more
Caused by: org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. Cause: java.lang.IllegalArgumentException: Result Maps collection already contains value for com.jkw100.mybatis.mapper.PatientMapper.BaseResultMap
at org.apache.ibatis.builder.xml.XMLMapperBuilder.configurationElement(XMLMapperBuilder.java:120)
at org.apache.ibatis.builder.xml.XMLMapperBuilder.parse(XMLMapperBuilder.java:92)
at org.apache.ibatis.builder.annotation.MapperAnnotationBuilder.loadXmlResource(MapperAnnotationBuilder.java:167)
at org.apache.ibatis.builder.annotation.MapperAnnotationBuilder.parse(MapperAnnotationBuilder.java:118)
at org.apache.ibatis.binding.MapperRegistry.addMapper(MapperRegistry.java:72)
at org.apache.ibatis.binding.MapperRegistry.addMappers(MapperRegistry.java:97)
at org.apache.ibatis.binding.MapperRegistry.addMappers(MapperRegistry.java:105)
at org.apache.ibatis.session.Configuration.addMappers(Configuration.java:667)
at org.apache.ibatis.builder.xml.XMLConfigBuilder.mapperElement(XMLConfigBuilder.java:331)
at org.apache.ibatis.builder.xml.XMLConfigBuilder.parseConfiguration(XMLConfigBuilder.java:113)
... 27 more
Caused by: java.lang.IllegalArgumentException: Result Maps collection already contains value for com.jkw100.mybatis.mapper.PatientMapper.BaseResultMap
at org.apache.ibatis.session.Configuration$StrictMap.put(Configuration.java:802)
at org.apache.ibatis.session.Configuration$StrictMap.put(Configuration.java:774)
at org.apache.ibatis.session.Configuration.addResultMap(Configuration.java:556)
at org.apache.ibatis.builder.MapperBuilderAssistant.addResultMap(MapperBuilderAssistant.java:217)
at org.apache.ibatis.builder.ResultMapResolver.resolve(ResultMapResolver.java:47)
at org.apache.ibatis.builder.xml.XMLMapperBuilder.resultMapElement(XMLMapperBuilder.java:285)
at org.apache.ibatis.builder.xml.XMLMapperBuilder.resultMapElement(XMLMapperBuilder.java:252)
at org.apache.ibatis.builder.xml.XMLMapperBuilder.resultMapElements(XMLMapperBuilder.java:244)
at org.apache.ibatis.builder.xml.XMLMapperBuilder.configurationElement(XMLMapperBuilder.java:116)
... 36 more

Result Maps collection already contains value for com.jkw100.mybatis.mapper.PatientMapper.BaseResultMap 看到这句是因为mapper.xml文件中id为BaseResultMap这个名称重复 删除重复解决问题

在用mybatis逆向工程自动生成mapper.xml的时候 如果不小心多运行了一次 那么在mapper.xml文件中的代码会多出一份 这样就会造成相同的id有两个或多个了 而相同的文件是不会多生成的

Junit测试错误：### Error building SqlSession的更多相关文章

  1. MyException--org.apache.ibatis.exceptions.PersistenceException: ### Error building SqlSession. ###

    org.apache.ibatis.exceptions.PersistenceException:  ### Error building SqlSession. ### The error may ...

  2. ### Error building SqlSession. ### The error may exist in SQL Mapper Configuration ### Cause: org.apache.ibatis.builder.BuilderException: Error parsing SQL Mapper Configuration. Cause: org.apache.ibat

    这是一个由粗心导致的错误,具体报错如下: org.apache.ibatis.exceptions.PersistenceException: ### Error building SqlSessio ...

  3. Error building SqlSession. ### The error may exist in dao/UserMapper.xml ### Cause: org.apache.ibatis.builder.BuilderException: Error parsing SQL Mapper Configuration(2 字节的 UTF-8 序列的字节 2 无效。)

    关于在学习Mybatis框架时运行报错 Caused by: org.apache.ibatis.exceptions.PersistenceException: ### Error building ...

  4. ### Error building SqlSession.

    org.apache.ibatis.exceptions.PersistenceException: ### Error building SqlSession.### The error may e ...

  5. 集成JUnit测试错误java.lang.IllegalStateException: Failed to load ApplicationContext

    1 详细错误信息 java.lang.IllegalStateException: Failed to load ApplicationContext at org.springframework.t ...

  6. java错误分析之junit测试错误（实验一）

    本文转自:https://www.cnblogs.com/anny0404/p/5275595.html 在原作者的基础上进行部分添加,也很感谢原作者这篇博文,帮我分析与解决问题! 原文: 下载了最新 ...

  7. spring3 + mybatis + maven：junit测试错误

    org.springframework.beans.factory.BeanDefinitionStoreException: Failed to read candidate component c ...

  8. Mybatis-java.lang.RuntimeException: org.apache.ibatis.exceptions.PersistenceException: ### Error building SqlSession. ### The error may exist in sqlmap/User.xml ### Cause: org.apache.ibatis.builder.B

    mappers(映射器) 使用相对于类路径的资源 如:<mapper resource="sqlmap/User.xml" /> 使用完全限定路径 如:<mapp ...

  9. Unity出现 error building player exception android (invocation failed)

    今天在编译Android的时候出现这个错误 error building player exception android (invocation failed) 百度谷歌之后,看到xuanyuson ...

随机推荐

  1. SQLyog安装

    安装 使用 首先看到下面的界面

  2. mysql清空表数据并重置自增ID

    mysql清空表数据并重置自增ID: ## 查看mysql> select * from work_order_company;mysql> show create table work_ ...

  3. 手机端 css 样式重置

    @charset "utf-8"; body, div, ul, li, ol, h1, h2, h3, h4, h5, h6, input, textarea, select, ...

  4. kali Linux 入门(二)

    九.软件安装 1.apt install --软件名称-- -y 2.apt install packge_name----库安装 3.apt install kali-linux-all -y--- ...

  5. [NOIP2009]最优贸易（图论）

    [NOIP2009]最优贸易 题目描述 CC 国有 \(n\) 个大城市和 \(m\) 条道路,每条道路连接这 \(n\) 个城市中的某两个城市.任意两个城市之间最多只有一条道路直接相连.这 \(m\ ...

  6. css--图片整合（精灵图）

    图片整合(精灵图) 精灵图的优点: 减少图片的字节 减少了网页的http请求,从而大大的提高了页面的性能 解决了网页设计师在图片命名上的困扰,只需对一张集合的图片上命名就可以了,不需要对每一个小元素进 ...

  7. flask之Twitter Bootstrap

    一:Twitter Bootstrap是什么? 1.开源框架:提供用户页面组件. 2.可以创建整洁且具有吸引力的网站,并且网站能兼容所有现代的Web浏览器. 特点: Bootstrap 是客户端框架, ...

  8. python tkinter实时显示曲线

    from tkinter import *from tkinter import ttkimport time#画窗口root = Tk()root.geometry('1000x500')root. ...

  9. JS原型链详解（2）

    深入理解javascript原型链 在javascript中原型和原型链是一个很神奇的东西,对于大多数人也是最难理解的一部分,掌握原型和原型链的本质是javascript进阶的重要一环.今天我分享一下 ...

  10. 【Swagger2】SpringBoot整合swagger2

    Swagger 简介 Swagger 是一个规范和完整的框架,用于生成.描述.调用和可视化 RESTful 风格的 Web 服务.总体目标是使客户端和文件系统作为服务器以同样的速度来更新.文件的方法, ...