问题描述：
spring boot开发项目，部署到tomcat，启动报错，提示“可能会有内存泄露”。

异常信息：
org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [**] appears to have started a thread named [logback-2] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:

具体提示信息如下：

解决方式：
（1）pom文件加入如下依赖：

<!-- 解决tomcat web加载内存泄漏问题 -->
<dependency>
    <groupId>se.jiderhamn</groupId>
    <artifactId>classloader-leak-prevention</artifactId>
    <version>1.15.2</version>
</dependency>

（2）新增java文件

@Bean
public ServletListenerRegistrationBean servletListenerRegistrationBean(){
    ServletListenerRegistrationBean servletListenerRegistrationBean = new ServletListenerRegistrationBean();
    servletListenerRegistrationBean.setListener(new ClassLoaderLeakPreventor());
    return servletListenerRegistrationBean;
}