Springboot项目异常记录

Springboot项目中的异常记录1

引起原因：对bean添加错误错误

Caused by: java.lang.NoClassDefFoundError: org/aspectj/lang/annotation/Pointcut
	at org.springframework.aop.aspectj.annotation.AbstractAspectJAdvisorFactory.(AbstractAspectJAdvisorFactory.java:62) ~[spring-aop-5.2.5.RELEASE.jar:5.2.5.RELEASE]
	at org.springframework.aop.aspectj.annotation.AnnotationAwareAspectJAutoProxyCreator.initBeanFactory(AnnotationAwareAspectJAutoProxyCreator.java:82) ~[spring-aop-5.2.5.RELEASE.jar:5.2.5.RELEASE]
	at org.springframework.aop.framework.autoproxy.AbstractAdvisorAutoProxyCreator.setBeanFactory(AbstractAdvisorAutoProxyCreator.java:63) ~[spring-aop-5.2.5.RELEASE.jar:5.2.5.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeAwareMethods(AbstractAutowireCapableBeanFactory.java:1818) ~[spring-beans-5.2.5.RELEASE.jar:5.2.5.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1783) ~[spring-beans-5.2.5.RELEASE.jar:5.2.5.RELEASE]
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:595) ~[spring-beans-5.2.5.RELEASE.jar:5.2.5.RELEASE]
	... 20 common frames omitted
Caused by: java.lang.ClassNotFoundException: org.aspectj.lang.annotation.Pointcut
	at java.net.URLClassLoader.findClass(URLClassLoader.java:381) ~[na:1.8.0_162]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[na:1.8.0_162]
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:338) ~[na:1.8.0_162]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[na:1.8.0_162]
	... 26 common frames omitted

解决办法
1、检查注解添加问题
Mapper——@Mapper
Service——@Service和@Transactional
Controller——@CrossOrigin和@RestController
2、检查注解添加是否有误，导入的包是否正确
Mapper——import org.apache.ibatis.annotations.Mapper;

Service——import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

Controller——import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.RestController;
3、检查自动注入的问题
Mapper.xml中有自己写的代码，其中有的跟数据库中的关键字相同，或者跟数据库中的名字不同。