tomcat启动加载信息如下：
Connected to server
[2017-10-16 09:02:28,149] Artifact basic-admin:war exploded: Artifact is being deployed, please wait...
十月 16, 2017 9:02:31 下午 org.apache.catalina.startup.TldConfig execute
信息: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
十月 16, 2017 9:02:36 下午 org.apache.catalina.core.StandardContext startInternal
严重: One or more listeners failed to start. Full details will be found in the appropriate container log file
十月 16, 2017 9:02:36 下午 org.apache.catalina.core.StandardContext startInternal
严重: Context [] startup failed due to previous errors
十月 16, 2017 9:02:36 下午 org.apache.catalina.loader.WebappClassLoaderBase clearReferencesJdbc
严重: The web application [] registered the JDBC driver [com.alibaba.druid.mock.MockDriver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered.
十月 16, 2017 9:02:36 下午 org.apache.catalina.loader.WebappClassLoaderBase clearReferencesJdbc
严重: The web application [] registered the JDBC driver [com.mysql.jdbc.Driver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered.
十月 16, 2017 9:02:36 下午 org.apache.catalina.loader.WebappClassLoaderBase clearReferencesJdbc
严重: The web application [] registered the JDBC driver [com.alibaba.druid.proxy.DruidDriver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered.
[2017-10-16 09:02:36,402] Artifact basic-admin:war exploded: Error during artifact deployment. See server log for details.
十月 16, 2017 9:02:37 下午 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deploying web application directory E:serverapache-tomcat-7.0.69webappsmanager
十月 16, 2017 9:02:38 下午 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deployment of web application directory E:serverapache-tomcat-7.0.69webappsmanager has finished in 141 ms
尝试解决方法：
- tomcat从6.0.24版本之后引入了内存泄漏侦测的功能，当发现系统有垃圾无法回收时，就会输出日志信息。
- j将tomcat/conf/server.xml文件中的 listener注释；
- 查看tomcat启动log记录、位置如下
- 发现在tomcat启动时，创建bean对象失败，包地址写错了
更正后问题解决；
- 发现问题还是要多看日志。。里面提供很多详细信息。。对解决问题很有帮助！