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错误日志：

SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.SLF4J: Actual binding is of type [org.apache.logging.slf4j.Log4jLoggerFactory]Exception in thread "main" java.lang.StackOverflowError	at org.apache.logging.log4j.util.StackLocator.getCallerClass(StackLocator.java:112)	at org.apache.logging.log4j.util.StackLocator.getCallerClass(StackLocator.java:125)	at org.apache.logging.log4j.util.StackLocatorUtil.getCallerClass(StackLocatorUtil.java:55)	at org.apache.logging.slf4j.Log4jLoggerFactory.getContext(Log4jLoggerFactory.java:42)	at org.apache.logging.log4j.spi.AbstractLoggerAdapter.getLogger(AbstractLoggerAdapter.java:46)	at org.apache.logging.slf4j.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:29)	at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:358)

产生此错误的原因：logback-classic包和slf4j包冲突。 

解决方法：

找到哪个依赖引入了logback-classic,然后用依赖排除标签排除掉。

找到了，然后：

   
       
    
     org.springframework.boot
        
    
     spring-boot-starter-websocket
        
        
            
                 
      
       ch.qos.logback
                  
      
       logback-classic
              
         
    
   

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