log4j:WARN No appenders could be found for logger(org.springframework.context.support.ClassPathXmlApplicationContext).log4j:WARN Please initialize the log4j system properly.Spring 使用了LOG4J 这个开源框架来输出信息，要解决这个问题非常简单，建立LOG4J 的配置文件即可。在src 目录下创建配置文件，选择菜单File > New > File，文件名输入log4j.properties，文件内容如下所示：log4j.rootLogger=WARN, stdout log4j...
解决Jetty Maven Plugin：Please initialize the log4j system properly.Jetty Maven Plugin环境：<plugin><groupId>org.mortbay.jetty</groupId><artifactId>jetty-maven-plugin</artifactId><version>8.1.10.v20130312</version> </plugin> 加入日志配置文件：<plugin><groupId>org.mortbay.jetty</groupId><artifactId>jetty-maven-plugin</artifactId><version>8.1.10.v20130312</version><configuration><systemProperties><s...
ERROR 1794 (HY000): Slave is not configured or failed to initialize properly. You must at least set --server-id to enable either a master or a slave. Additional error messages can be found in the MySQL error log. error log中有类似日志：2016-05-10 17:21:25 14407 [Warning] InnoDB: Cannot open table mysql/innodb_table_stats from the internal data dictionary of InnoDB though the .frm file for the ...
springboot项目启动 ,使用的druid数据源，log4j报错2018-05-2108:59:21.168 INFO 1496 --- [ restartedMain] o.hibernate.annotations.common.Version : HCANN000001: Hibernate Commons Annotations {5.0.1.Final} log4j:WARN No appenders could be found for logger (druid.sql.Connection). log4j:WARN Please initialize the log4j system properly. log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconf...
<!-- slf4j 整合 log4j maven项目只需要引入这一个包即可 会依赖下载其他包--> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-log4j12</artifactId> <version>1.7.21</version> </dependency> 错误： log4j:WARN Please initialize the log4j system properly.slf4j 如果用 log4j 需要添加log4j的配置文件log4j.properties（必须填写内容）比如随便写点儿：log4j.propertieslog4j.rootLogger=debug, st...
解决方法： 在resources文件夹下，创建一个配置文件：log4j.properties 内容如下：log4j.rootLogger=WARN, stdout log4j.appender.stdout=org.apache.log4j.ConsoleAppender log4j.appender.stdout.layout=org.apache.log4j.PatternLayout log4j.appender.stdout.layout.ConversionPattern=%d %p [%c] - %m%n重启APP即可
解决办法： 建立LOG4J 的配置文件即可。 常用log4j配置，一般可以采用两种方式：.properties或者.xml的配置, 下面举两个简单的例子：一、log4j.properties### 设置org.zblog域对应的级别INFO,DEBUG,WARN,ERROR和输出地A1，A2 ##log4j.category.org.zblog=ERROR,A1 log4j.category.org.zblog=INFO,A2 log4j.appender.A1=org.apache.log4j.ConsoleAppender ### 设置输出地A1，为ConsoleAppender(控制台) ##log4j.appender.A1.layout=...
使用log4j，报警如下： log4j:WARN No appenders could be found for logger log4j:WARN Please initialize the log4j system properly. maven项目，在项目下建source folder “/src/test/resources”； 在上面路径下建一个文件log4j.properties； 将如下内容复制到log4j.propertieslog4j.rootLogger=debug, stdout, Rlog4j.appender.stdout=org.apache.log4j.ConsoleAppender log4j.appender.stdout.layout=org.apache.log4j.Patt...
ERROR 1794 (HY000): Slave?is not configured or failed to initialize properly. You must at least?set --server-id to enable either a master or a slave. Additional error messages can be found?in the MySQL error log. ?error?log中有类似日志：2016-05-10 17:21:25?14407?[Warning]?InnoDB:?Cannot?open?table?mysql/innodb_table_stats?from?the?internal?data?dictionary?of?InnoDB?though?the?.frm?file?for?the...