23-May-2019 16:04:25.300 INFO [localhost-startStop-1] org.apache.jasper.servlet.TldScanner.scanJars At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time. SLF4J: Class path contains multiple SLF4J bindings. SLF4J: Found binding in [jar:file:/home/admin/xxx/WEB-INF/lib/slf4j-log4j12-1.6.1.jar!/org/slf4j/impl/StaticLoggerBinder.class] SLF4J: Found binding in [jar:file:/home/admin/xxx/WEB-INF/lib/logback-classic-1.1.3.jar!/org/slf4j/impl/StaticLoggerBinder.class] SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation. SLF4J: Actual binding is of type [org.slf4j.impl.Log4jLoggerFactory]
报错原因
org.slf4j.impl.Log4jLoggerFactory cannot be cast to ch.qos.logback.classic.LoggerContext
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'cn.com.xxx.framework.log.integration.LogbackInitializer#0' defined in class path resource [spring/spring-log-init.xml]: Invocation of init method failed; nested exception is java.lang.ClassCastException: org.slf4j.impl.Log4jLoggerFactory cannot be cast to ch.qos.logback.classic.LoggerContext ... Caused by: java.lang.ClassCastException: org.slf4j.impl.Log4jLoggerFactory cannot be cast to ch.qos.logback.classic.LoggerContext # 出问题的加载地方 at ch.qos.logback.ext.spring.LogbackConfigurer.initLogging(LogbackConfigurer.java:72) at cn.com.xxx.framework.log.integration.LogbackInitializer.init(LogbackInitializer.java:49) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeCustomInitMethod(AbstractAutowireCapableBeanFactory.java:1706) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1645) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1574) ... 26 more 23-May-2019 15:59:12.398 SEVERE [localhost-startStop-1] org.apache.catalina.core.StandardContext.startInternal One or more listeners failed to start. Full details will be found in the appropriate container log file
protected Class> loadClass(String name, boolean resolve) throws ClassNotFoundException { synchronized (getClassLoadingLock(name)) { // First, check if the class has already been loaded // 首先，检查 class 是否已经被加载 Class> c = findLoadedClass(name); if (c == null) { // 如果没有被加载 long t0 = System.nanoTime(); try { if (parent != null) { // 寻找 parent 加载器 c = parent.loadClass(name, false); } else { // 如果父加载器不存在，则委托给启动类加载器加载 c = findBootstrapClassOrNull(name); } } catch (ClassNotFoundException e) { // ClassNotFoundException thrown if class not found // from the non-null parent class loader } if (c == null) { // If still not found, then invoke findClass in order // to find the class. // 如果仍然无法加载，才会尝试自身加载 long t1 = System.nanoTime(); c = findClass(name); // this is the defining class loader; record the stats sun.misc.PerfCounter.getParentDelegationTime().addTime(t1 - t0); sun.misc.PerfCounter.getFindClassTime().addElapsedTimeFrom(t1); sun.misc.PerfCounter.getFindClasses().increment(); } } if (resolve) { resolveClass(c); } return c; } }
[Loaded java.lang.CloneNotSupportedException from /Users/jingqi/.jrebel/bootcache/jrebel-bootstrap-89f567048120ef32b965233b5ba2f7ca.jar] [Loaded java.lang.Thread$State from /Users/jingqi/.jrebel/bootcache/jrebel-bootstrap-89f567048120ef32b965233b5ba2f7ca.jar] [Loaded java.util.TreeMap$NavigableSubMap from /Users/jingqi/.jrebel/bootcache/jrebel-bootstrap-89f567048120ef32b965233b5ba2f7ca.jar] [Loaded java.util.TreeMap$AscendingSubMap from /Users/jingqi/.jrebel/bootcache/jrebel-bootstrap-89f567048120ef32b965233b5ba2f7ca.jar] [Loaded java.util.TreeMap$NavigableSubMap$EntrySetView from /Users/jingqi/.jrebel/bootcache/jrebel-bootstrap-89f567048120ef32b965233b5ba2f7ca.jar] [Loaded java.util.TreeMap$AscendingSubMap$AscendingEntrySetView from /Users/jingqi/.jrebel/bootcache/jrebel-bootstrap-89f567048120ef32b965233b5ba2f7ca.jar] [Loaded java.util.TreeMap$NavigableSubMap$SubMapIterator from /Users/jingqi/.jrebel/bootcache/jrebel-bootstrap-89f567048120ef32b965233b5ba2f7ca.jar] [Loaded java.util.TreeMap$NavigableSubMap$SubMapEntryIterator from /Users/jingqi/.jrebel/bootcache/jrebel-bootstrap-89f567048120ef32b965233b5ba2f7ca.jar]
将之前在 uat 环境有问题的代码版本重新打包，不使用 idea 工具，直接用 tomcat8 启动，并且在
catalina.sh
脚本中加入类加载打印参数
-XX:+TraceClassLoading
catalina.sh
# Register custom URL handlers # Do this here so custom URL handles (specifically 'war:...') can be used in the security policy JAVA_OPTS="$JAVA_OPTS -XX:+TraceClassLoading"
