mybatis @InsertProvider报错问题及解决

使用@Provider注意事项（要点）

1.在Mapper接口和@InsertProvider方法类中，不要使用重载，也就是说，不要使用方法名相同参数不同的方法(使用mapper.xml同理)。

2.InsertProvider method参数指定的方法，必须是public的，返回值必须为String，可以为static。

3.Mapper接口中@InsertProvider 的type参数指定的Class类，必须要能够通过无参的构造函数来初始化；

4.Mapper接口和自定义Provider只能传递一个参数。

直接上错误

org.apache.ibatis.binding.BindingException: Invalid bound statement (not found): com.**.dao.DynasqlMapper.insertFactorValTemp
    at org.apache.ibatis.binding.MapperMethod$SqlCommand.<init>(MapperMethod.java:189)
    at org.apache.ibatis.binding.MapperMethod.<init>(MapperMethod.java:43)
    at org.apache.ibatis.binding.MapperProxy.cachedMapperMethod(MapperProxy.java:58)
    at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:51)
    at com.sun.proxy.$Proxy90.insertFactorValTemp(Unknown Source)
    at com.**.service.impl.ZnfkFactorValServiceImpl.insertSingleComSingleFactorVal(ZnfkFactorValServiceImpl.java:99)
    at com.**.controller.FactorTaskController.codeList(FactorTaskController.java:40)
    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:497)
    at org.springframework.WEB.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219)
    at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)
    at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745)
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686)
    at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)
    at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:827)
    at javax.servlet.Http.httpservlet.service(HttpServlet.java:622)
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:292)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
    at org.apache.Tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
    at com.GitHub.dandelion.datatables.core.web.filter.DatatablesFilter.doFilter(DatatablesFilter.java:73)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)

代码截图如下

直观判断是绑定失败，检查写法问题。参考：https://www.jb51.net/article/254298.htm发现一些问题。

按照上面提到的进行部分调整，重启tomcat,执行代码还是返回上面的错误。无奈只能debug模式。

发现在 

报错。无法获取到method.

继续debug，发现这个是在 项目初始化时候添加进去就失败了。

同时看到控制台报错日志（因为项目加载项比较多，前面日志被覆盖掉了）

10:11:15.435 [RMI tcp Connection(3)-127.0.0.1] ERROR o.m.spring.mapper.MapperFactoryBean - Error while adding the mapper 'interface com.**.dao.DynaSqlMapper' to configuration.
org.apache.ibatis.builder.BuilderException: Could not find value method on SQL annotation.  Cause: org.apache.ibatis.builder.BuilderException: Error creating SqlSource for SqlProvider. Method 'updateFactorValTemp' not found in SqlProvider 'com.**.dao.DynaSqlProvider'.
    at org.apache.ibatis.builder.annotation.MapperAnnotationBuilder.getSqlSourceFromAnnotations(MapperAnnotationBuilder.java:412) ~[mybatis-3.2.6.jar:3.2.6]
    at org.apache.ibatis.builder.annotation.MapperAnnotationBuilder.parseStatement(MapperAnnotationBuilder.java:247) ~[mybatis-3.2.6.jar:3.2.6]
    at org.apache.ibatis.builder.annotation.MapperAnnotationBuilder.parse(MapperAnnotationBuilder.java:126) ~[mybatis-3.2.6.jar:3.2.6]
    at org.apache.ibatis.binding.MapperReGIStry.addMapper(MapperRegistry.java:71) ~[mybatis-3.2.6.jar:3.2.6]
    at org.apache.ibatis.session.Configuration.addMapper(Configuration.java:651) ~[mybatis-3.2.6.jar:3.2.6]
    at org.mybatis.spring.mapper.MapperFactoryBean.checkDaoConfig(MapperFactoryBean.java:97) ~[mybatis-spring-1.2.2.jar:1.2.2]
    at org.springframework.dao.support.DaoSupport.afterPropertiesSet(DaoSupport.java:44) [spring-tx-3.2.4.RELEASE.jar:3.2.4.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1541) [spring-beans-3.2.4.RELEASE.jar:3.2.4.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1479) [spring-beans-3.2.4.RELEASE.jar:3.2.4.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:521) [spring-beans-3.2.4.RELEASE.jar:3.2.4.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458) [spring-beans-3.2.4.RELEASE.jar:3.2.4.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:295) [spring-beans-3.2.4.RELEASE.jar:3.2.4.RELEASE]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223) [spring-beans-3.2.4.RELEASE.jar:3.2.4.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292) [spring-beans-3.2.4.RELEASE.jar:3.2.4.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getTypeForFactoryBean(AbstractBeanFactory.java:1368) [spring-beans-3.2.4.RELEASE.jar:3.2.4.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.getTypeForFactoryBean(AbstractAutowireCapableBeanFactory.java:720) [spring-beans-3.2.4.RELEASE.jar:3.2.4.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.isTypeMatch(AbstractBeanFactory.java:523) [spring-beans-3.2.4.RELEASE.jar:3.2.4.RELEASE]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doGetBeanNamesForType(DefaultListableBeanFactory.java:356) [spring-beans-3.2.4.RELEASE.jar:3.2.4.RELEASE]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanNamesForType(DefaultListableBeanFactory.java:326) [spring-beans-3.2.4.RELEASE.jar:3.2.4.RELEASE]
    at org.springframework.beans.factory.BeanFactoryUtils.beanNamesForTypeIncludingAncestors(BeanFactoryUtils.java:187) [spring-beans-3.2.4.RELEASE.jar:3.2.4.RELEASE]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:897) [spring-beans-3.2.4.RELEASE.jar:3.2.4.RELEASE]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:855) [spring-beans-3.2.4.RELEASE.jar:3.2.4.RELEASE]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:770) [spring-beans-3.2.4.RELEASE.jar:3.2.4.RELEASE]
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredMethodElement.inject(AutowiredAnnotationBeanPostProcessor.java:558) [spring-beans-3.2.4.RELEASE.jar:3.2.4.RELEASE]
    at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87) [spring-beans-3.2.4.RELEASE.jar:3.2.4.RELEASE]
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:285) [spring-beans-3.2.4.RELEASE.jar:3.2.4.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1116) [spring-beans-3.2.4.RELEASE.jar:3.2.4.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519) [spring-beans-3.2.4.RELEASE.jar:3.2.4.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458) [spring-beans-3.2.4.RELEASE.jar:3.2.4.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:295) [spring-beans-3.2.4.RELEASE.jar:3.2.4.RELEASE]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223) [spring-beans-3.2.4.RELEASE.jar:3.2.4.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292) [spring-beans-3.2.4.RELEASE.jar:3.2.4.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:198) [spring-beans-3.2.4.RELEASE.jar:3.2.4.RELEASE]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeansOfType(DefaultListableBeanFactory.java:438) [spring-beans-3.2.4.RELEASE.jar:3.2.4.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.getBeansOfType(AbstractApplicationContext.java:1188) [spring-context-3.2.4.RELEASE.jar:3.2.4.RELEASE]
    at org.springframework.beans.factory.BeanFactoryUtils.beansOfTypeIncludingAncestors(BeanFactoryUtils.java:277) [spring-beans-3.2.4.RELEASE.jar:3.2.4.RELEASE]
    at com.alibaba.dubbo.config.spring.ReferenceBean.afterPropertiesSet(ReferenceBean.java:80) [dubbo-2.8.4.jar:2.8.4]
    at com.fairyland.jdp.waf.annoprocessor.FairylandAnnotationBean.refer(FairylandAnnotationBean.java:312) [classes/:1.0]
    at com.fairyland.jdp.waf.annoprocessor.ReferenceAnnotationBean$AutowiredFieldElement.inject(ReferenceAnnotationBean.java:501) [classes/:1.0]
    at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87) [spring-beans-3.2.4.RELEASE.jar:3.2.4.RELEASE]
    at com.fairyland.jdp.waf.annoprocessor.ReferenceAnnotationBean.postProcessPropertyValues(ReferenceAnnotationBean.java:297) [classes/:1.0]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1116) [spring-beans-3.2.4.RELEASE.jar:3.2.4.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519) [spring-beans-3.2.4.RELEASE.jar:3.2.4.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458) [spring-beans-3.2.4.RELEASE.jar:3.2.4.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:295) [spring-beans-3.2.4.RELEASE.jar:3.2.4.RELEASE]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223) [spring-beans-3.2.4.RELEASE.jar:3.2.4.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292) [spring-beans-3.2.4.RELEASE.jar:3.2.4.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194) [spring-beans-3.2.4.RELEASE.jar:3.2.4.RELEASE]
    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:323) [spring-beans-3.2.4.RELEASE.jar:3.2.4.RELEASE]
    at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:107) [spring-beans-3.2.4.RELEASE.jar:3.2.4.RELEASE]

发现关键问题--创建Provider报错。

根据这个线索查找：参考 https://www.jb51.net/article/254304.htm

发现Provider只能传递一个参数。推出mapper也只能包含一个参数。

按照要求修改。成功执行。

总结

遇到问题多加思考，合理使用搜索引擎（一般性问题都会有答案）。问题没有头绪时，使用debug模式，一步一步的重现问题出现的节点，分析问题关键。

以上为个人经验，希望能给大家一个参考，也希望大家多多支持。