环境:一个tomcat ,一个工程配置了多数据源,在启动的时候报如下错误: SEVERE: The web application [/qdp-resource-job] 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 JDB…
问题描述 在将Spring Boot程序打包生成的war包部署到Tomcat后,启动Tomcat时总是报错,但是直接在IDEA中启动Application或者用"java -jar"方式运行jar包时都能正常运行.报错信息如下: To prevent a memory leak, the JDBC Driver has been forcibly unregistered. (为了防止内存泄漏,已强制注销JDBC驱动程序.) 开发环境 Spring Boot + MySql + Spr…
最近使用了最新版的tomcat9,使用jdbc链接mysql数据库.关闭tomcat过程中出现警告 13-Sep-2017 22:22:54.369 WARNING [main] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesJdbc The web application [license] registered the JDBC driver [com.mysql.jdbc.Driver] but failed…
出现以下错误时,我找了很多方法,都未解决,网上有很多,最后我实在无奈,怀疑会不会是Tomcat的原因,更换了一个版本之后就好了.The web application [ ] registered the JDBC driver [net.sourceforge.jtds.jdbc.Driver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC…
问题是tomcat的版本问题,tomcat新检测机制导致的这个问题,换版本可以解决问题,但不建议这么做,租用服务器不是你说换就换的.其实问题根源是BasicDataSource,BasicDataSource类close()的一个Bug. BasicDataSource's method close() doesn't deregister JDBC driver. This causes permgen memory leaks in web server environments, duri…
最近项目中遇见一问题,在开发环境没有问题的代码,到了生产环境就会报如下错误: 严重: A web application registered the JBDC driver [oracle.jdbc.OracleDriver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregis…