Bug整理——阿里Ons高版本引入后Spring项目不打印日志问题

报错信息

2018-07-06 18:48:44,346 main INFO Log4j appears to be running in a Servlet environment, but there's no log4j-web module available. If you want better web container support, please add the log4j-web JAR to your web archive or server lib directory.
2018-07-06 18:48:44,447 main WARN No Root logger was configured, creating default ERROR-level Root logger with Console appender

从这里的报错信息之后，所有的logger日志都不会被打印。

排查后发现在

com.aliyun.openservices.shade.com.alibaba.rocketmq.client.log.ClientLogger类中有个方法是产生logger的

private static Logger createLogger(final String loggerName) {
        String logConfigFilePath = System.getProperty("rocketmq.client.log.configFile", System.getenv("ROCKETMQ_CLIENT_LOG_CONFIGFILE"));
        Boolean isloadconfig =
                Boolean.parseBoolean(System.getProperty("rocketmq.client.log.loadconfig", "true"));

        final String log4JResourceFile =
                System.getProperty("rocketmq.client.log4j.resource.fileName", "log4j_rocketmq_client.xml");

        final String logbackResourceFile =
                System.getProperty("rocketmq.client.logback.resource.fileName", "logback_rocketmq_client.xml");

        final String log4J2ResourceFile =
                System.getProperty("rocketmq.client.log4j2.resource.fileName", "log4j2_rocketmq_client.xml");

        String clientLogRoot = System.getProperty(CLIENT_LOG_ROOT, System.getProperty("user.home") + "/logs/rocketmqlogs");
        System.setProperty("client.logRoot", clientLogRoot);
        String clientLogLevel = System.getProperty(CLIENT_LOG_LEVEL, "INFO");
        System.setProperty("client.logLevel", clientLogLevel);
        String clientLogMaxIndex = System.getProperty(CLIENT_LOG_MAXINDEX, "10");
        System.setProperty("client.logFileMaxIndex", clientLogMaxIndex);

        if (isloadconfig) {
            try {
                ILoggerFactory iLoggerFactory = LoggerFactory.getILoggerFactory();
                Class classType = iLoggerFactory.getClass();
                if (classType.getName().equals("org.slf4j.impl.Log4jLoggerFactory")) {
                    Class domconfigurator;
                    Object domconfiguratorobj;
                    domconfigurator = Class.forName("org.apache.log4j.xml.DOMConfigurator");
                    domconfiguratorobj = domconfigurator.newInstance();
                    if (null == logConfigFilePath) {
                        Method configure = domconfiguratorobj.getClass().getMethod("configure", URL.class);
                        URL url = ClientLogger.class.getClassLoader().getResource(log4JResourceFile);
                        configure.invoke(domconfiguratorobj, url);
                    } else {
                        Method configure = domconfiguratorobj.getClass().getMethod("configure", String.class);
                        configure.invoke(domconfiguratorobj, logConfigFilePath);
                    }

                } else if (classType.getName().equals("ch.qos.logback.classic.LoggerContext")) {
                    Class joranConfigurator;
                    Class context = Class.forName("ch.qos.logback.core.Context");
                    Object joranConfiguratoroObj;
                    joranConfigurator = Class.forName("ch.qos.logback.classic.joran.JoranConfigurator");
                    joranConfiguratoroObj = joranConfigurator.newInstance();
                    Method setContext = joranConfiguratoroObj.getClass().getMethod("setContext", context);
                    setContext.invoke(joranConfiguratoroObj, iLoggerFactory);
                    if (null == logConfigFilePath) {
                        URL url = ClientLogger.class.getClassLoader().getResource(logbackResourceFile);
                        Method doConfigure =
                                joranConfiguratoroObj.getClass().getMethod("doConfigure", URL.class);
                        doConfigure.invoke(joranConfiguratoroObj, url);
                    } else {
                        Method doConfigure =
                                joranConfiguratoroObj.getClass().getMethod("doConfigure", String.class);
                        doConfigure.invoke(joranConfiguratoroObj, logConfigFilePath);
                    }

                } else if (classType.getName().equals("org.apache.logging.slf4j.Log4jLoggerFactory")) {
                    Class joranConfigurator = Class.forName("org.apache.logging.log4j.core.config.Configurator");
                    Method initialize = joranConfigurator.getDeclaredMethod("initialize", String.class, String.class);
                    if (null == logConfigFilePath) {
                        initialize.invoke(joranConfigurator, "log4j2", log4J2ResourceFile);
                    } else {
                        initialize.invoke(joranConfigurator, "log4j2", logConfigFilePath);
                    }
                }
            } catch (Exception e) {
                System.err.println(e);
            }
        }
        return LoggerFactory.getLogger(LoggerName.CLIENT_LOGGER_NAME);
    }

主要是这一行：

 Boolean isloadconfig =
                Boolean.parseBoolean(System.getProperty("rocketmq.client.log.loadconfig", "true"));

所以在代码中加上

System.setProperty("rocketmq.client.log.loadconfig","false");即可