关于java.lang.NoSuchMethodError: org.slf4j.spi.LocationAwareLogger.log

配置JFinal环境时,jar包已导入,web.xml已配置,Config也已经配置好,测试服务器时不停地出现

Exception in thread "main" java.lang.NoSuchMethodError: org.slf4j.spi.LocationAwareLogger.log(Lorg/slf4j/Marker;Ljava/lang/String;ILjava/lang/String;[Ljava/lang/Object;Ljava/lang/Throwable;)V
    at org.eclipse.jetty.util.log.JettyAwareLogger.log(JettyAwareLogger.java:607)
    at org.eclipse.jetty.util.log.JettyAwareLogger.warn(JettyAwareLogger.java:431)
    at org.eclipse.jetty.util.log.Slf4jLog.warn(Slf4jLog.java:69)
    at org.eclipse.jetty.util.component.AbstractLifeCycle.setFailed(AbstractLifeCycle.java:204)
    at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:74)
    at com.jfinal.server.JettyServer.doStart(JettyServer.java:121)
    at com.jfinal.server.JettyServer.start(JettyServer.java:64)
    at com.jfinal.core.JFinal.start(JFinal.java:137)
    at com.demo.common.CommonConfig.main(CommonConfig.java:43)

百度后得知两种结果:(1)缺少slf4j的jar包。(2)jar包冲突
关于java.lang.NoSuchMethodError: org.slf4j.spi.LocationAwareLogger.log_第1张图片
这里只有log4j一个jar包。
在pom.xml里查看了一遍版本信息

<dependency>
            <groupId>junitgroupId>
            <artifactId>junitartifactId>
            <version>4.8.2version>
            <scope>testscope>
        dependency>
        <dependency>
            <groupId>com.jfinalgroupId>
            <artifactId>jetty-serverartifactId>
            <version>8.1.8version>
            <scope>providedscope>
        dependency>
        <dependency>
            <groupId>javax.servletgroupId>
            <artifactId>servlet-apiartifactId>
            <version>2.5version>
            <scope>providedscope>
        dependency>
        
        <dependency>
            <groupId>org.eclipse.jettygroupId>
            <artifactId>jetty-jspartifactId>
            <version>8.1.8.v20121106version>
            <scope>providedscope>
        dependency>
        
        <dependency>
            <groupId>c3p0groupId>
            <artifactId>c3p0artifactId>
            <version>0.9.1.2version>
            <scope>providedscope>
        dependency>
        <dependency>
            <groupId>com.alibabagroupId>
            <artifactId>druidartifactId>
            <version>1.0.5version>
            <scope>providedscope>
        dependency>
        <dependency>
            <groupId>net.sf.ehcachegroupId>
            <artifactId>ehcache-coreartifactId>
            <version>2.6.6version>
            <scope>providedscope>
        dependency>
        <dependency>
            <groupId>org.freemarkergroupId>
            <artifactId>freemarkerartifactId>
            <version>2.3.20version>
            <scope>providedscope>
        dependency>
        <dependency>
            <groupId>log4jgroupId>
            <artifactId>log4jartifactId>
            <version>1.2.16version>
            <scope>providedscope>
        dependency>
        <dependency>
            <groupId>org.apache.velocitygroupId>
            <artifactId>velocityartifactId>
            <version>1.7version>
            <scope>providedscope>
        dependency>
        <dependency>
            <groupId>org.apache.velocitygroupId>
            <artifactId>velocity-toolsartifactId>
            <version>2.0version>
            <scope>providedscope>
        dependency>
        <dependency>
            <groupId>com.jfinalgroupId>
            <artifactId>cosartifactId>
            <version>26Dec2008version>
            <scope>providedscope>
        dependency>
        <dependency>
            <groupId>cglibgroupId>
            <artifactId>cglib-nodepartifactId>
            <version>3.1version>
        dependency>
        <dependency>
            <groupId>redis.clientsgroupId>
            <artifactId>jedisartifactId>
            <version>2.7.2version>
            <scope>providedscope>
        dependency>
        <dependency>
            <groupId>de.ruedigermoellergroupId>
            <artifactId>fstartifactId>
            <version>2.29version>
            <scope>providedscope>
        dependency>

        
                    

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