Invalid bound statement (not found): mapper.BankMapper.findAll

整合ssm时读取不到映射文件,具体报错信息
org.apache.ibatis.binding.BindingException: Invalid bound statement (not found): mapper.BankMapper.save
org.apache.ibatis.binding.MapperMethod $SqlCommand.<init>(MapperMethod.java:225)org.apache.ibatis.binding.MapperMethod.<init>(MapperMethod.java:48)org.apache.ibatis.binding.MapperProxy.cachedMapperMethod(MapperProxy.java:65)org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:58)com.sun.proxy.$Proxy17.save(Unknown Source)
service.imp.BankServiceImp.save(BankServiceImp.java:26)
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
java.base/java.lang.reflect.Method.invoke(Method.java:566)
org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:344)
org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:198)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:367)
org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:118)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:95)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:212)
com.sun.proxy.$Proxy20.save(Unknown Source)
controller.BankController.save(BankController.java:25)
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
java.base/java.lang.reflect.Method.invoke(Method.java:566)
org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:190)
org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138)
org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:105)
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:879)
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:793)
org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1040)
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943)
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006)
org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:909)
javax.servlet.http.HttpServlet.service(HttpServlet.java:652)
org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883)
javax.servlet.http.HttpServlet.service(HttpServlet.java:733)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)

本来在整合的spring和mybatis的时候就非常纳闷书上的只扫描了dao层的接口包，好奇他的映射文件是怎么加载
进去的<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"><property name="dataSource" ref="dataSource"/><property name="configLocation" value="classpath:SqlMapConfig.xml"/></bean><bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"><property name="basePackage" value="mapper"/></bean>可以看到只在最下面扫描了dao层接口对应的包,在配置sqlsession工厂的时候加载了主文件，而在主文件中此时
也只定义了别名,并没有加载映射文件,但书上就是这样运行成功了,我就报了上面的错经过查找得知mybatis整合时映射文件名和接口名必须要一致才能加载,包括大小写
于是又在想,如果不是一致难道无法加载了？？？
经过查找得知需要在配置sqlsession工厂时手动加载映射文件,如下<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"><property name="dataSource" ref="dataSource"/><property name="configLocation" value="classpath:SqlMapConfig.xml"/><property name="mapperLocations" value="classpath:mapper/bankMapper.xml"/></bean>