解决Could not find resource mybatis-config.xml的问题

先看一点错误信息吧

错误编码：
``java.io.IOException: Could not find resource mybatis-config.xml at org.apache.ibatis.io.Resources.getResourceAsStream(Resources.java:114) at org.apache.ibatis.io.Resources.getResourceAsStream(Resources.java:100) at com.ahau.pms.utils.SqlSessionUtil. (SqlSessionUtil.java:23) at com.ahau.pms.settings.service.impl.UserServiceImpl. (UserServiceImpl.java:19) at com.ahau.pms.settings.web.controller.UserController.login(UserController.java:65) at com.ahau.pms.settings.web.controller.UserController.service(UserController.java:29) at javax.servlet.http.HttpServlet.service(HttpServlet.java:764) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at com.ahau.pms.web.filter.LoginFilter.doFilter(LoginFilter.java:28) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at com.ahau.pms.web.filter.EncodingFilter.doFilter(EncodingFilter.java:16) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:196) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:542) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:135) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81) at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:698) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:364) at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:624) at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:831) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1673) at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191) at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:748)

解决

我的mybatis-config.xml放在resources文件夹

——>依赖mybatis-config.xml的sqlSession配置错误——>果然resource导入的mybatis-config位置错误

测试，

依然无法找到mybatis-config.xml——>检查打包后是否资源丢失，经检查果然target包无mybatis-config.xml文件

——>在pom.xml中设置资源引用，防止资源在打包时丢失——>测试，依然无法找到——>进一步聚焦到该配置是否有问题

——>resource配置里用的exclude,这神仙也导不进来，改为include

测试成功,以下为正确设置

——>教训:听课吃瘪的地方:注意关键节点名词的出现，和它的意义，以及一些具体配置在使用别人的时，要知其所以然