mybatis+spring报错求指点（已解决）

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#mybatis #ssm #日志

本文探讨了在MyBatis环境下整合Spring时遇到的批量加载mapper问题，并提供了两种解决方案：一是采用单个加载方式，二是通过更新相关jar包并使用Maven进行依赖管理，从根本上解决问题。

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mybatis+spring报错

- 错误简述

错误简述

我在mybatis环境下能够运行，但当我整合了spring后，出现了错误
当我使用单个接口映射时又能成功运行
所以，问题出在批量加载mapper上

解决方法一（不推荐）

既然问题出在批量加载上，那么，我们可以使用单个加载的方式

<!-- mapper配置 
MapperFactoryBean：根据mapper接口生成代理对象
-->
<bean id="userMapper" class="org.mybatis.spring.mapper.MapperFactoryBean">
		<!-- mapperInterface指定mapper接口 -->
		<property name="mapperInterface" value="com.mapper.UserMapper"/>
		<property name="sqlSessionFactory" ref="sqlSessionFactory"/>
</bean>

解决方法二（从根本上解决）

经过查找多方面资料，发现这是很多人困扰的问题，在我看源码的时候，不知道是与jdk版本还是什么东西的版本不匹配的原因或是jar包的原因，有些字段的set方法没法调用了。

也就是说，批量加载的时候，我们的配置，根本就没有写进去

具体实现

既然知道了这个原因，我们需要下载较新版本的相关jar包。但是这种方法很难可行，因为jar包实在难找（大家懂的）
通过这件事我也简单的学习了一下maven，用maven添加依赖jar包还是相较容易的，在经过了简单地学习之后，可以使用批量加载了，具体用maven怎么弄，后续的帖子里面会详细说明

报错提示

DEBUG [main] - Initializing new StandardEnvironment
DEBUG [main] - Adding [systemProperties] PropertySource with lowest search precedence
DEBUG [main] - Adding [systemEnvironment] PropertySource with lowest search precedence
DEBUG [main] - Initialized StandardEnvironment with PropertySources [systemProperties,systemEnvironment]
 INFO [main] - Refreshing org.springframework.context.support.ClassPathXmlApplicationContext@31b7dea0: startup date [Thu Apr 18 17:45:42 CST 2019]; root of context hierarchy
DEBUG [main] - Initializing new StandardEnvironment
DEBUG [main] - Adding [systemProperties] PropertySource with lowest search precedence
DEBUG [main] - Adding [systemEnvironment] PropertySource with lowest search precedence
DEBUG [main] - Initialized StandardEnvironment with PropertySources [systemProperties,systemEnvironment]
DEBUG [main] - Initializing new StandardEnvironment
DEBUG [main] - Adding [systemProperties] PropertySource with lowest search precedence
DEBUG [main] - Adding [systemEnvironment] PropertySource with lowest search precedence
DEBUG [main] - Initialized StandardEnvironment with PropertySources [systemProperties,systemEnvironment]
 INFO [main] - Loading XML bean definitions from class path resource [spring/applicationContext.xml]
DEBUG [main] - Using JAXP provider [com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderFactoryImpl]
DEBUG [main] - Loading schema mappings from [META-INF/spring.schemas]
DEBUG [main] - Loaded schema mappings: {http://mybatis.org/schema/mybatis-spring-1.2.xsd=org/mybatis/spring/config/mybatis-spring-1.2.xsd, http://www.springframework.org/schema/jee/spring-jee-3.2.xsd=org/springframework/ejb/config/spring-jee-3.2.xsd, http://www.springframework.org/schema/util/spring-util.xsd=org/springframework/beans/factory/xml/spring-util-3.2.xsd, http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd=org/springframework/web/servlet/config/spring-mvc-3.1.xsd, http://www.springframework.org/schema/task/spring-task.xsd=org/springframework/scheduling/config/spring-task-3.2.xsd, http://www.springframework.org/schema/beans/spring-beans-3.1.xsd=org/springframework/beans/factory/xml/spring-beans-3.1.xsd, http://www.springframework.org/schema/cache/spring-cache.xsd=org/springframework/cache/config/spring-cache-3.2.xsd, http://www.springframework.org/schema/aop/spring-aop-3.0.xsd=org/springframework/aop/config/spring-aop-3.0.xsd, http://www.springframework.org/schema/task/spring-task-3.1.xsd=org/springframework/scheduling/config/spring-task-3.1.xsd, http://www.springframework.org/schema/aop/spring-aop-2.0.xsd=org/springframework/aop/config/spring-aop-2.0.xsd, http://www.springframework.org/schema/tool/spring-tool-2.5.xsd=org/springframework/beans/factory/xml/spring-tool-2.5.xsd, http://www.springframework.org/schema/beans/spring-beans.xsd=org/springframework/beans/factory/xml/spring-beans-3.2.xsd, http://www.springframework.org/schema/jee/spring-jee-2.5.xsd=org/springframework/ejb/config/spring-jee-2.5.xsd, http://www.springframework.org/schema/jdbc/spring-jdbc-3.1.xsd=org/springframework/jdbc/config/spring-jdbc-3.1.xsd, http://www.springframework.org/schema/tool/spring-tool-3.1.xsd=org/springframework/beans/factory/xml/spring-tool-3.1.xsd, http://www.springframework.org/schema/jee/spring-jee-3.1.xsd=org/springframework/ejb/config/spring-jee-3.1.xsd, http://www.springframework.org/schema/aop/spring-aop.xsd=org/springframework/aop/config/spring-aop-3.2.xsd, http://www.springframework.org/schema/tx/spring-tx-3.2.xsd=org/springframework/transaction/config/spring-tx-3.2.xsd, http://www.springframework.org/schema/context/spring-context-3.2.xsd=org/springframework/context/config/spring-context-3.2.xsd, http://www.springframework.org/schema/beans/spring-beans-2.0.xsd=org/springframework/beans/factory/xml/spring-beans-2.0.xsd, http://www.springframework.org/schema/util/spring-util-3.2.xsd=org/springframework/beans/factory/xml/spring-util-3.2.xsd, http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd=org/springframework/web/servlet/config/spring-mvc-3.0.xsd, http://www.springframework.org/schema/lang/spring-lang-3.2.xsd=org/springframework/scripting/config/spring-lang-3.2.xsd, http://www.springframework.org/schema/beans/spring-beans-3.0.xsd=org/springframework/beans/factory/xml/spring-beans-3.0.xsd, http://www.springframework.org/schema/cache/spring-cache-3.2.xsd=org/springframework/cache/config/spring-cache-3.2.xsd, http://www.springframework.org/schema/task/spring-task-3.0.xsd=org/springframework/scheduling/config/spring-task-3.0.xsd, http://mybatis.org/schema/mybatis-spring.xsd=org/mybatis/spring/config/mybatis-spring-1.2.xsd, http://www.springframework.org/schema/tx/spring-tx-2.5.xsd=org/springframework/transaction/config/spring-tx-2.5.xsd, http://www.springframework.org/schema/context/spring-context-2.5.xsd=org/springframework/context/config/spring-context-2.5.xsd, http://www.springframework.org/schema/jdbc/spring-jdbc-3.0.xsd=org/springframework/jdbc/config/spring-jdbc-3.0.xsd, http://www.springframework.org/schema/tool/spring-tool-3.0.xsd=org/springframework/beans/factory/xml/spring-tool-3.0.xsd, http://www.springframework.org/schema/tx/spring-tx.xsd=org/springframework/transaction/config/spring-tx-3.2.xsd, http://www.springframework.org/schema/lang/spring-lang.xsd=org/springframework/scripting/config/spring-lang-3.2.xsd, http://www.springframework.org/schema/tool/spring-tool-2.0.xsd=org/springframework/beans/factory/xml/spring-tool-2.0.xsd, http://www.springframework.org/schema/util/spring-util-2.5.xsd=org/springframework/beans/factory/xml/spring-util-2.5.xsd, http://www.springframework.org/schema/lang/spring-lang-2.5.xsd=org/springframework/scripting/config/spring-lang-2.5.xsd, http://www.springframework.org/schema/aop/spring-aop-3.2.xsd=org/springframework/aop/config/spring-aop-3.2.xsd, http://www.springframework.org/schema/jee/spring-jee-3.0.xsd=org/springframework/ejb/config/spring-jee-3.0.xsd, http://www.springframework.org/schema/tx/spring-tx-3.1.xsd=org/springframework/transaction/config/spring-tx-3.1.xsd, http://www.springframework.org/schema/jee/spring-jee-2.0.xsd=org/springframework/ejb/config/spring-jee-2.0.xsd, http://www.springframework.org/schema/context/spring-context-3.1.xsd=org/springframework/context/config/spring-context-3.1.xsd, http://www.springframework.org/schema/util/spring-util-3.1.xsd=org/springframework/beans/factory/xml/spring-util-3.1.xsd, http://www.springframework.org/schema/lang/spring-lang-3.1.xsd=org/springframework/scripting/config/spring-lang-3.1.xsd, http://www.springframework.org/schema/cache/spring-cache-3.1.xsd=org/springframework/cache/config/spring-cache-3.1.xsd, http://www.springframework.org/schema/context/spring-context.xsd=org/springframework/context/config/spring-context-3.2.xsd, http://www.springframework.org/schema/jee/spring-jee.xsd=org/springframework/ejb/config/spring-jee-3.2.xsd, http://www.springframework.org/schema/aop/spring-aop-2.5.xsd=org/springframework/aop/config/spring-aop-2.5.xsd, http://www.springframework.org/schema/mvc/spring-mvc.xsd=org/springframework/web/servlet/config/spring-mvc-3.2.xsd, http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd=org/springframework/web/servlet/config/spring-mvc-3.2.xsd, http://www.springframework.org/schema/jdbc/spring-jdbc.xsd=org/springframework/jdbc/config/spring-jdbc-3.2.xsd, http://www.springframework.org/schema/beans/spring-beans-3.2.xsd=org/springframework/beans/factory/xml/spring-beans-3.2.xsd, http://www.springframework.org/schema/tx/spring-tx-2.0.xsd=org/springframework/transaction/config/spring-tx-2.0.xsd, http://www.springframework.org/schema/aop/spring-aop-3.1.xsd=org/springframework/aop/config/spring-aop-3.1.xsd, http://www.springframework.org/schema/task/spring-task-3.2.xsd=org/springframework/scheduling/config/spring-task-3.2.xsd, http://www.springframework.org/schema/tx/spring-tx-3.0.xsd=org/springframework/transaction/config/spring-tx-3.0.xsd, http://www.springframework.org/schema/context/spring-context-3.0.xsd=org/springframework/context/config/spring-context-3.0.xsd, http://www.springframework.org/schema/tool/spring-tool.xsd=org/springframework/beans/factory/xml/spring-tool-3.2.xsd, http://www.springframework.org/schema/util/spring-util-3.0.xsd=org/springframework/beans/factory/xml/spring-util-3.0.xsd, http://www.springframework.org/schema/lang/spring-lang-3.0.xsd=org/springframework/scripting/config/spring-lang-3.0.xsd, http://www.springframework.org/schema/util/spring-util-2.0.xsd=org/springframework/beans/factory/xml/spring-util-2.0.xsd, http://www.springframework.org/schema/lang/spring-lang-2.0.xsd=org/springframework/scripting/config/spring-lang-2.0.xsd, http://www.springframework.org/schema/jdbc/spring-jdbc-3.2.xsd=org/springframework/jdbc/config/spring-jdbc-3.2.xsd, http://www.springframework.org/schema/tool/spring-tool-3.2.xsd=org/springframework/beans/factory/xml/spring-tool-3.2.xsd, http://www.springframework.org/schema/beans/spring-beans-2.5.xsd=org/springframework/beans/factory/xml/spring-beans-2.5.xsd}
DEBUG [main] - Found XML schema [http://www.springframework.org/schema/beans/spring-beans-3.2.xsd] in classpath: org/springframework/beans/factory/xml/spring-beans-3.2.xsd
DEBUG [main] - Found XML schema [http://www.springframework.org/schema/context/spring-context-3.2.xsd] in classpath: org/springframework/context/config/spring-context-3.2.xsd
DEBUG [main] - Found XML schema [http://www.springframework.org/schema/tool/spring-tool-3.2.xsd] in classpath: org/springframework/beans/factory/xml/spring-tool-3.2.xsd
DEBUG [main] - Loading bean definitions
DEBUG [main] - Loaded NamespaceHandler mappings: {http://www.springframework.org/schema/p=org.springframework.beans.factory.xml.SimplePropertyNamespaceHandler, http://www.springframework.org/schema/mvc=org.springframework.web.servlet.config.MvcNamespaceHandler, http://www.springframework.org/schema/util=org.springframework.beans.factory.xml.UtilNamespaceHandler, http://www.springframework.org/schema/jee=org.springframework.ejb.config.JeeNamespaceHandler, http://www.springframework.org/schema/aop=org.springframework.aop.config.AopNamespaceHandler, http://www.springframework.org/schema/jdbc=org.springframework.jdbc.config.JdbcNamespaceHandler, http://www.springframework.org/schema/cache=org.springframework.cache.config.CacheNamespaceHandler, http://mybatis.org/schema/mybatis-spring=org.mybatis.spring.config.NamespaceHandler, http://www.springframework.org/schema/c=org.springframework.beans.factory.xml.SimpleConstructorNamespaceHandler, http://www.springframework.org/schema/tx=org.springframework.transaction.config.TxNamespaceHandler, http://www.springframework.org/schema/task=org.springframework.scheduling.config.TaskNamespaceHandler, http://www.springframework.org/schema/lang=org.springframework.scripting.config.LangNamespaceHandler, http://www.springframework.org/schema/context=org.springframework.context.config.ContextNamespaceHandler}
DEBUG [main] - Neither XML 'id' nor 'name' specified - using generated bean name [org.mybatis.spring.mapper.MapperScannerConfigurer#0]
DEBUG [main] - Loaded 4 bean definitions from location pattern [classpath:spring/applicationContext.xml]
DEBUG [main] - Bean factory for org.springframework.context.support.ClassPathXmlApplicationContext@31b7dea0: org.springframework.beans.factory.support.DefaultListableBeanFactory@2b9627bc: defining beans [org.springframework.context.support.PropertySourcesPlaceholderConfigurer#0,dataSource,sqlSessionFactory,org.mybatis.spring.mapper.MapperScannerConfigurer#0]; root of factory hierarchy
DEBUG [main] - Creating shared instance of singleton bean 'org.mybatis.spring.mapper.MapperScannerConfigurer#0'
DEBUG [main] - Creating instance of bean 'org.mybatis.spring.mapper.MapperScannerConfigurer#0'
DEBUG [main] - Eagerly caching bean 'org.mybatis.spring.mapper.MapperScannerConfigurer#0' to allow for resolving potential circular references
DEBUG [main] - Invoking afterPropertiesSet() on bean with name 'org.mybatis.spring.mapper.MapperScannerConfigurer#0'
DEBUG [main] - Finished creating instance of bean 'org.mybatis.spring.mapper.MapperScannerConfigurer#0'
DEBUG [main] - Initializing new StandardEnvironment
DEBUG [main] - Adding [systemProperties] PropertySource with lowest search precedence
DEBUG [main] - Adding [systemEnvironment] PropertySource with lowest search precedence
DEBUG [main] - Initialized StandardEnvironment with PropertySources [systemProperties,systemEnvironment]
DEBUG [main] - Looking for matching resources in directory tree [C:\Users\lx\workspace\mybatis_spring\build\classes\com\mapper]
DEBUG [main] - Searching directory [C:\Users\lx\workspace\mybatis_spring\build\classes\com\mapper] for files matching pattern [C:/Users/lx/workspace/mybatis_spring/build/classes/com/mapper/**/*.class]
DEBUG [main] - Resolved location pattern [classpath*:com/mapper/**/*.class] to resources [file [C:\Users\lx\workspace\mybatis_spring\build\classes\com\mapper\UserMapper.class]]
 INFO [main] - Destroying singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@2b9627bc: defining beans [org.springframework.context.support.PropertySourcesPlaceholderConfigurer#0,dataSource,sqlSessionFactory,org.mybatis.spring.mapper.MapperScannerConfigurer#0]; root of factory hierarchy