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Code  ›  log4j2.8和springboot搭配使用时的xwEx问题_后天星期一的博客
log4j
https://blog.csdn.net/zhang168/article/details/77001197
曾深爱过的烤红薯
2 年前 
2017-05-11 16:32:34,144 main ERROR Error creating converter for xwEx java.lang.reflect.InvocationTargetException
	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.apache.logging.log4j.core.pattern.PatternParser.createConverter(PatternParser.java:582)
	at org.apache.logging.log4j.core.pattern.PatternParser.finalizeConverter(PatternParser.java:638)
	at org.apache.logging.log4j.core.pattern.PatternParser.parse(PatternParser.java:414)
	at org.apache.logging.log4j.core.pattern.PatternParser.parse(PatternParser.java:177)
	at org.apache.logging.log4j.core.layout.PatternLayout$SerializerBuilder.build(PatternLayout.java:376)
	at org.apache.logging.log4j.core.layout.PatternLayout.<init>(PatternLayout.java:137)
	at org.apache.logging.log4j.core.layout.PatternLayout.<init>(PatternLayout.java:58)
	at org.apache.logging.log4j.core.layout.PatternLayout$Builder.build(PatternLayout.java:652)
	at org.apache.logging.log4j.core.layout.PatternLayout$Builder.build(PatternLayout.java:516)
	at org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.build(PluginBuilder.java:122)
	at org.apache.logging.log4j.core.config.AbstractConfiguration.createPluginObject(AbstractConfiguration.java:952)
	at org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:892)
	at org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:884)
	at org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:884)
	at org.apache.logging.log4j.core.config.AbstractConfiguration.doConfigure(AbstractConfiguration.java:508)
	at org.apache.logging.log4j.core.config.AbstractConfiguration.initialize(AbstractConfiguration.java:232)
	at org.apache.logging.log4j.core.config.AbstractConfiguration.start(AbstractConfiguration.java:244)
	at org.apache.logging.log4j.core.LoggerContext.setConfiguration(LoggerContext.java:545)
	at org.apache.logging.log4j.core.LoggerContext.start(LoggerContext.java:261)
	at org.springframework.boot.logging.log4j2.Log4J2LoggingSystem.loadConfiguration(Log4J2LoggingSystem.java:176)
	at org.springframework.boot.logging.log4j2.Log4J2LoggingSystem.loadDefaults(Log4J2LoggingSystem.java:159)
	at org.springframework.boot.logging.AbstractLoggingSystem.initializeWithConventions(AbstractLoggingSystem.java:84)
	at org.springframework.boot.logging.AbstractLoggingSystem.initialize(AbstractLoggingSystem.java:59)
	at org.springframework.boot.logging.log4j2.Log4J2LoggingSystem.initialize(Log4J2LoggingSystem.java:148)
	at org.springframework.boot.logging.LoggingApplicationListener.initializeSystem(LoggingApplicationListener.java:303)
	at org.springframework.boot.logging.LoggingApplicationListener.initialize(LoggingApplicationListener.java:276)
	at org.springframework.boot.logging.LoggingApplicationListener.onApplicationEnvironmentPreparedEvent(LoggingApplicationListener.java:239)
	at org.springframework.boot.logging.LoggingApplicationListener.onApplicationEvent(LoggingApplicationListener.java:212)
	at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:167)
	at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139)
	at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:122)
	at org.springframework.boot.context.event.EventPublishingRunListener.environmentPrepared(EventPublishingRunListener.java:73)
	at org.springframework.boot.SpringApplicationRunListeners.environmentPrepared(SpringApplicationRunListeners.java:54)
	at org.springframework.boot.SpringApplication.prepareEnvironment(SpringApplication.java:336)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:307)
	at org.springframework.boot.test.context.SpringBootContextLoader.loadContext(SpringBootContextLoader.java:120)
	at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContextInternal(DefaultCacheAwareContextLoaderDelegate.java:98)
	at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:116)
	at org.springframework.test.context.support.DefaultTestContext.getApplicationContext(DefaultTestContext.java:83)
	at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.injectDependencies(DependencyInjectionTestExecutionListener.java:117)
	at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.prepareTestInstance(DependencyInjectionTestExecutionListener.java:83)
	at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:230)
	at org.springframework.test.context.testng.AbstractTestNGSpringContextTests.springTestContextPrepareTestInstance(AbstractTestNGSpringContextTests.java:149)
	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.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:108)
	at org.testng.internal.Invoker.invokeConfigurationMethod(Invoker.java:523)
	at org.testng.internal.Invoker.invokeConfigurations(Invoker.java:224)
	at org.testng.internal.Invoker.invokeConfigurations(Invoker.java:146)
	at org.testng.internal.TestMethodWorker.invokeBeforeClassMethods(TestMethodWorker.java:166)
	at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:105)
	at org.testng.TestRunner.privateRun(TestRunner.java:744)
	at org.testng.TestRunner.run(TestRunner.java:602)
	at org.testng.SuiteRunner.runTest(SuiteRunner.java:380)
	at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:375)
	at org.testng.SuiteRunner.privateRun(SuiteRunner.java:340)
	at org.testng.SuiteRunner.run(SuiteRunner.java:289)
	at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52)
	at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:86)
	at org.testng.TestNG.runSuitesSequentially(TestNG.java:1301)
	at org.testng.TestNG.runSuitesLocally(TestNG.java:1226)
	at org.testng.TestNG.runSuites(TestNG.java:1144)
	at org.testng.TestNG.run(TestNG.java:1115)
	at org.apache.maven.surefire.testng.TestNGExecutor.run(TestNGExecutor.java:135)
	at org.apache.maven.surefire.testng.TestNGDirectoryTestSuite.executeMulti(TestNGDirectoryTestSuite.java:193)
	at org.apache.maven.surefire.testng.TestNGDirectoryTestSuite.execute(TestNGDirectoryTestSuite.java:94)
	at org.apache.maven.surefire.testng.TestNGProvider.invoke(TestNGProvider.java:146)
	at org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:386)
	at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:323)
	at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:143)
Caused by: java.lang.NoSuchMethodError: org.apache.logging.log4j.core.pattern.ThrowablePatternConverter.<init>(Ljava/lang/String;Ljava/lang/String;[Ljava/lang/String;)V
	at org.springframework.boot.logging.log4j2.ExtendedWhitespaceThrowablePatternConverter.<init>(ExtendedWhitespaceThrowablePatternConverter.java:42)
	at org.springframework.boot.logging.log4j2.ExtendedWhitespaceThrowablePatternConverter.newInstance(ExtendedWhitespaceThrowablePatternConverter.java:63)
	... 76 more
2017-05-11 16:32:34,147 main ERROR Unrecognized conversion specifier [xwEx] starting at position 160 in conversion pattern.

spring的解释见  https://github.com/spring-projects/spring-boot/issues/9172

Spring Boot 1.5.x isn't compatible with Log4j 2.8.x. We're planning support with Spring Boot 2.0.0 (see #8854 ).

另在spring-boot和log4j2 搭配使用时，如果log4j2.xml不在根路径下，务必在application.properties里加上 

logging.config=config/log4j2.xml

config 为log4j2.xml 所在的目录，否则日志里会没有记录

每个工程都有多个环境，不限于开发rd，测试qa，预发pre，线上online，这些环境对日志记录的需求是不一样的，目前开发中大家为了在开发测试环境能方便看日志，都会开启控制台输出，合并到master 时 这里难免会出现冲突或者将控制输出代码合并到master，仅仅在线上才会应用，这就需要不同环境有不同的log4j配置，可采取以下方式： ##启用配置 spring: profiles: active: local 1、在application.yml或者application.propertie
解决方案：此错误是因为用Mybatis -代码自动生成（generatorConfig.xml）工具，对应的mapper的xml文件中生成了两个resultMap（BaseResultMap），删除其中一个，或删除此xml文件，重新生成。 造成的原因:Mybatis -代码自动生成（generatorConfig.xml）工具可能重复执行了。 异常（错误）信息：java.lang.reflec...
在产生这个 问题 的 时 候，以为是代码某个类又改动了。但是对比了git，发现并没有改动，测试环境代码照跑，故又重新拉了一份重新部署，仍然报同样的错。解决过程中，试了以下网上各种方法，均无效果。 1、包重复、缺失；（都是跑了俩礼拜的项目了，突然少包什么的可能性不大） 2、jdk 问题 ；（设置翻了一遍，发现都是8，也没有 问题 ） 3、映射文件发生改变。（没有类的改动，也没有映射文件的改动，排除）
严重: Dispatcher initialization failed java.lang.RuntimeException: java.lang.reflect.InvocationTargetException 问题 解决 2010-09-01 11:14 5626人阅读 评论(13) 收藏 举报 initializationstrutsfilter 1、核对lib包 Lint infrastructure error Caused by: java.lang.reflect.InvocationTargetException at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethod...
首先收藏一下 log4j2 的官网：http://logging.apache.org/log4j/2.x/manual/plugins.html#TypeConverters有 时 候需要在日志中实现类似aop的效果，统一加进去某些参数。对于这种需要， log4j2 则可以 使用 插件机制。具体做法：package com.hotusm.ticket.interceptor; import org.apach...
<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-log4j</artifactId> </dependency> 2. 创建log4j.properties或log4j.xml文件，并将其放置在src/main/resources目录下。下面是一个log4j.properties的示例配置： # 设置日志输出级别 log4j.rootLogger=INFO, stdout # 控制台输出配置 log4j.appender.stdout=org.apache.log4j.ConsoleAppender log4j.appender.stdout.Target=System.out log4j.appender.stdout.layout=org.apache.log4j.PatternLayout log4j.appender.stdout.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n # 文件输出配置 log4j.appender.file=org.apache.log4j.RollingFileAppender log4j.appender.file.File=/path/to/log/file.log log4j.appender.file.MaxFileSize=10MB log4j.appender.file.MaxBackupIndex=10 log4j.appender.file.layout=org.apache.log4j.PatternLayout log4j.appender.file.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n 3. 在应用程序的主类上添加以下注释： ```java @ SpringBoot Application public class DemoApplication { public static void main(String[] args) { SpringApplication.run(DemoApplication.class, args); 4. 运行应用程序，Log4j将 使用 配置文件中的设置记录日志。 请确保将log4j.properties或log4j.xml文件放置在正确的位置，并根据需要进行配置。可以根据自己的需求调整日志级别、输出目标和格式等设置。
<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-websocket</artifactId> </dependency> [/code] mysql 记录 CSDN-Ada助手: 哇, 你的文章质量真不错，值得学习！不过这么高质量的文章, 还值得进一步提升, 以下的改进点你可以参考下: (1)增加条理清晰的目录；(2)使用标准目录；(3)增加除了各种控件外，文章正文的字数。
 
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