java.sql.SQLException: Connections could not be acquired from the underlying database! at com.mchange.v2.sql.SqlUtils.toSQLException(SqlUtils.java:106) at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool.checkoutPooledConnection(C3P0PooledConnection…

1.Spring boot 启动报错 Failed to auto-configure a DataSource 参考资料https://blog.csdn.net/liuyinfei_java/article/details/79750146…

spring boot 启动报错如下 org.springframework.context.ApplicationContextException: Unable to start web server; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.boot.autoconfigure…

解决spring boot启动报错java.lang.NoClassDefFoundError: ch/qos/logback/classic/Level 学习了:https://blog.csdn.net/yunfeng482/article/details/78106433 没想到啊:我都看见了,idea也反编不了: 没想到要重新下载啊:…

今天spring整合quartz报错,最后一步步排查,发现是和redis依赖冲突,最后redis升级了一下,问题解决. 总结:发现问题,逐一排查,如果是整合问题,报类加载不到的错误,大概率是和其他组件依赖冲突,找到冲突源,解决即可.…

spring boot 启动报错: Caused by: java.lang.IllegalArgumentException: LoggerFactory is not a Logback LoggerContext but Logback is on the classpath. Either remove Logback or the competing implementation (class org.slf4j.impl.Log4jLoggerFactory loaded from…

论坛上有另外一篇更全面的帖子,jinnianshilongnian写的:http://www.iteye.com/topic/1120924 本文的环境是:  spring-framework-3.1.0  hibernate-4.1.6  junit-4.10  这里大部分是参考我以前熟悉的配置方法,只是把hibernate3升级到hibernate4,其实差不了很多,只要注意几个要点:  1.以前集成hibernate3和spring的时候,spring的ORM包里提供了HibernateS…

报错如下: ### Error updating database. Cause: java.lang.IllegalArgumentException: Mapped Statements collection does not contain value for com.xxx.entity.UserMapper.insert ### Cause: java.lang.IllegalArgumentException: Mapped Statements collection does no…

1.Could not autowire field: private javax.servlet.http.HttpServletRequest 参考:https://www.cnblogs.com/summary-2017/p/8000626.html https://stackoverflow.com/questions/17619029/spring-junit-test-case-failed @WebAppConfiguration("src/main/resources"…

引言: 本人在使用spring集成shiro是总是报“no bean named 'shiroFilter' is defined”,网上的所有方式挨个试了一遍,又检查了一遍, 还是没有解决,最后,抱着试试看的心态,采用单元调试的方法终于解决了. 1.原因记录 以下是我报错的原因: 报错部分标记为红色,也被我注释掉. 第一个报错的地方是缓存管理器配置的有问题,第二个报错的地方是shiroFilter缺少值. <beans xmlns="http://www.springframework.…