spring boot + mybatis报错：Error creating bean with name ‘***’ defined in file

朱雀 2020-09-20 03:40 1801阅读 0赞

## 报错日志 ##

*  警告部分

2019-07-24 17:23:23.394  WARN 10620 --- [           main]
    ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'loginFilter': Unsatisfied dependency expressed through field 'userService'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'userServiceImpl': Unsatisfied dependency expressed through field 'sysUserDao'; nested exception is org.springframework.beans.factory.BeanCreationException: 
    Error creating bean with name 'sysUserDao' defined in file
    [F:\workspace\13_micro-service\MicroServiceFramework\cetc-bdri-generic-manage-gateway\target\classes\com\cetc\manage\gateway\dao\SysUserDao.class]: Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: Property 'sqlSessionFactory' or 'sqlSessionTemplate' are required

*  报错部分

java.net.Inet6AddressImpl.getHostByAddr(Native Method)
     java.net.InetAddress$2.getHostByAddr(InetAddress.java:933)
     java.net.InetAddress.getHostFromNameService(InetAddress.java:618)
     java.net.InetAddress.getHostName(InetAddress.java:560)
     java.net.InetAddress.getHostName(InetAddress.java:532)
     org.springframework.cloud.commons.util.InetUtils$$Lambda$101/865059288.call(Unknown Source)
     java.util.concurrent.FutureTask.run$$$capture(FutureTask.java:266)
     java.util.concurrent.FutureTask.run(FutureTask.java)
     java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
     java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
     java.lang.Thread.run(Thread.java:748)
    2019-07-24 17:23:23.437  WARN 10620 --- [ost-startStop-1] o.a.c.loader.WebappClassLoaderBase       : The web application [api] appears to have started a thread named [Abandoned connection cleanup thread] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
     java.lang.Object.wait(Native Method)
     java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:144)
     com.mysql.jdbc.AbandonedConnectionCleanupThread.run(AbandonedConnectionCleanupThread.java:43)
    2019-07-24 17:23:23.438  WARN 10620 --- [ost-startStop-1] o.a.c.loader.WebappClassLoaderBase       : The web application [api] appears to have started a thread named [RxIoScheduler-1 (Evictor)] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
     sun.misc.Unsafe.park(Native Method)
     java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
     java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
     java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1093)
     java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
     java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
     java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
     java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
     java.lang.Thread.run(Thread.java:748)

# 分析 #

> 看第一眼，感觉是没有找到`sysUserDao`,这种解决方案对于spring boot来说，有如下解决方案：
> 
>  *  在启动类中添加 `@ComponentScan(basePackages = {"com.***.***.****"})` 标签，`com.***.***.****`为`sysUserDao`所在路径，由于springboot启动类会默认扫描启动类下所有的package，所以出现这种情况应该有两个：
> 
> > 1.自定义了`@ComponentScan`标签，没有定义扫描自己工程下的包  
> > 2.将自己的dao层放在了其他路径  
> > 对于以上两种情况，可以通过`@ComponentScan`注解来解决问题，但是对于我，没有解决问题

> 随后去检查`mybatis`和`spring boot`的依赖，发现了问题，少引入了 `mybatis-spring-boot-starter`依赖，在pom文件中添加
> 
>     <dependency>
>                <groupId>org.mybatis.spring.boot</groupId>
>                <artifactId>mybatis-spring-boot-starter</artifactId>
>                <version>2.1.0</version>
>            </dependency>
> 
> 解决问题