程序启动时会有日志警告 SLF4J: Class path contains multiple SLF4J bindings. SLF4J: Found binding in [jar:file:/E:/maven/mavenRepository/ch/qos/logback/logback-classic/1.2.3/logback-classic-1.2.3.jar!/org/slf4j/impl/StaticLoggerBinder.class] SLF4J: Found binding
问题现象:在引用log4j包后,使用自己导出的jar包,编译测试例代码,在启动浏览器时出现以下告警:log4j:WARN No appenders could be found for logger (org.apache.http.client.protocol.RequestAddCookies).log4j:WARN Please initialize the log4j system properly. 问题原因:引用了log4j ,但是未建立log4j 的配置文件(不引用log4j 不
最近在搞一个ssm+shiro的整合 用的maven tomcat插件 启动的时候报错,提示 maven org.springframework.web.filter.CharacterEncodingFilter cannot be cast to javax.servlet.Filter 网上查找资料后说是jar包冲突,写了一个测试类 import java.net.URL; import javax.servlet.Filter; public class zzzz { public st