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com.course.Application

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:: Spring Boot :: (v2.0.5.RELEASE)

2019-08-07 17:17:38.683 [main] INFO com.course.Application - Starting Application on DESKTOP-2HU9I8G with PID 11060 (started by admin in C:\Program Files\Git\workspace\Test\FirstTest)
2019-08-07 17:17:38.687 [main] INFO com.course.Application - No active profile set, falling back to default profiles: default
2019-08-07 17:17:38.737 [main] INFO o.s.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext - Refreshing org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext@2d3379b4: startup date [Wed Aug 07 17:17:38 CST 2019]; root of context hierarchy
2019-08-07 17:17:40.557 [main] INFO org.springframework.boot.web.embedded.tomcat.TomcatWebServer - Tomcat initialized with port(s): 9999 (http)
2019-08-07 17:17:40.579 [main] INFO org.apache.catalina.core.StandardService - Starting service [Tomcat]
2019-08-07 17:17:40.579 [main] INFO org.apache.catalina.core.StandardEngine - Starting Servlet Engine: Apache Tomcat/8.5.34
2019-08-07 17:17:40.588 [localhost-startStop-1] INFO org.apache.catalina.core.AprLifecycleListener - The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: [C:\Program Files\Java\jdk1.8.0_161\bin;C:\WINDOWS\Sun\Java\bin;C:\WINDOWS\system32;C:\WINDOWS;C:\ProgramData\Oracle\Java\javapath;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0;C:\Program Files\Java\jdk1.8.0_161\bin;C:\Program Files\Java\jdk1.8.0_161\jre\bin;C:\Program Files\TortoiseSVN\bin;C:\WINDOWS\System32\OpenSSH;C:\strawberry\c\bin;C:\strawberry\perl\bin;C:\Program Files\Git\cmd;E:\IDEA\apache-maven-3.6.0\bin;“C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem”;E:\Test Tools\AppIum\android\platform-tools;E:\Test Tools\AppIum\android\tools???;“C:\Users\admin\AppData\Local\Microsoft\WindowsApps;C:\WINDOWS\system32;C:\WINDOWS;%MAVEN_HOME%\bin”;C:\Users\admin\AppData\Local\Microsoft\WindowsApps;C:\Users\admin\AppData\Local\Programs\Fiddler;D:\MySql\mysql-5.7.27-winx64\lib;;.]
2019-08-07 17:17:40.682 [localhost-startStop-1] INFO org.apache.catalina.core.ContainerBase.[Tomcat].[localhost].[/] - Initializing Spring embedded WebApplicationContext
2019-08-07 17:17:40.682 [localhost-startStop-1] INFO org.springframework.web.context.ContextLoader - Root WebApplicationContext: initialization completed in 1945 ms
2019-08-07 17:17:40.737 [localhost-startStop-1] INFO org.springframework.boot.web.servlet.ServletRegistrationBean - Servlet dispatcherServlet mapped to [/]
2019-08-07 17:17:40.740 [localhost-startStop-1] INFO org.springframework.boot.web.servlet.FilterRegistrationBean - Mapping filter: ‘characterEncodingFilter’ to: [/]
2019-08-07 17:17:40.740 [localhost-startStop-1] INFO org.springframework.boot.web.servlet.FilterRegistrationBean - Mapping filter: ‘hiddenHttpMethodFilter’ to: [/]
2019-08-07 17:17:40.740 [localhost-startStop-1] INFO org.springframework.boot.web.servlet.FilterRegistrationBean - Mapping filter: ‘httpPutFormContentFilter’ to: [/]
2019-08-07 17:17:40.740 [localhost-startStop-1] INFO org.springframework.boot.web.servlet.FilterRegistrationBean - Mapping filter: ‘requestContextFilter’ to: [/]
2019-08-07 17:17:40.786 [main] WARN o.s.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext - Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name ‘demo’: Unsatisfied dependency expressed through field ‘template’; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type ‘org.mybatis.spring.SqlSessionTemplate’ available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
2019-08-07 17:17:40.786 [main] WARN org.springframework.context.annotation.CommonAnnotationBeanPostProcessor - Invocation of destroy method failed on bean with name ‘application’: java.lang.NullPointerException
2019-08-07 17:17:40.788 [main] INFO org.apache.catalina.core.StandardService - Stopping service [Tomcat]
2019-08-07 17:17:40.805 [localhost-startStop-1] WARN org.apache.catalina.loader.WebappClassLoaderBase - The web application [ROOT] appears to have started a thread named [Abandoned connection cleanup thread] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
java.lang.Object.wait(Native Method)
java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:143)
com.mysql.cj.jdbc.AbandonedConnectionCleanupThread.run(AbandonedConnectionCleanupThread.java:43)
2019-08-07 17:17:40.812 [main] INFO o.s.boot.autoconfigure.logging.ConditionEvaluationReportLoggingListener -

Error starting ApplicationContext. To display the conditions report re-run your application with ‘debug’ enabled.
2019-08-07 17:17:40.900 [main] ERROR org.springframework.boot.diagnostics.LoggingFailureAnalysisReporter -

APPLICATION FAILED TO START

Description:

Field template in com.course.controller.Demo required a bean of type ‘org.mybatis.spring.SqlSessionTemplate’ that could not be found.
- Bean method ‘sqlSessionTemplate’ not loaded because @ConditionalOnBean (types: javax.sql.DataSource; SearchStrategy: all) did not find any beans of type javax.sql.DataSource

Action:

Consider revisiting the entries above or defining a bean of type ‘org.mybatis.spring.SqlSessionTemplate’ in your configuration.

Process finished with exit code 1

使用百度上的解决办法没有效果，替换了老师的源码，还是报错；