如何解決log4j-slf4j-implcannotbepresentwithlog4j-to-slf4j報(bào)錯(cuò)
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構(gòu)建一個(gè)項(xiàng)目的時(shí)候，啟動(dòng)時(shí)候爆了下面的錯(cuò)誤：
SLF4J: Class path contains multiple SLF4J bindings. SLF4J: Found binding in [jar:file:/D:/buildSoft/java/maven/jar-center/org/apache/logging/log4j/log4j-slf4j-impl/2.12.1/log4j-slf4j-impl-2.12.1.jar!/org/slf4j/impl/StaticLoggerBinder.class] SLF4J: Found binding in [jar:file:/D:/buildSoft/java/maven/jar-center/ch/qos/logback/logback-classic/1.2.3/logback-classic-1.2.3.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.apache.logging.slf4j.Log4jLoggerFactory] Exception in thread "main" java.lang.ExceptionInInitializerError at com.xt.gateway.GatewayApplication.main(GatewayApplication.java:22) Caused by: org.apache.logging.log4j.LoggingException: log4j-slf4j-impl cannot be present with log4j-to-slf4j at org.apache.logging.slf4j.Log4jLoggerFactory.validateContext(Log4jLoggerFactory.java:49) at org.apache.logging.slf4j.Log4jLoggerFactory.newLogger(Log4jLoggerFactory.java:39) at org.apache.logging.slf4j.Log4jLoggerFactory.newLogger(Log4jLoggerFactory.java:30) at org.apache.logging.log4j.spi.AbstractLoggerAdapter.getLogger(AbstractLoggerAdapter.java:54) at org.apache.logging.slf4j.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:30) at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:363) at org.apache.commons.logging.LogAdapter$Slf4jAdapter.createLocationAwareLog(LogAdapter.java:130) at org.apache.commons.logging.LogAdapter.createLog(LogAdapter.java:91) at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:67) at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:59) at org.springframework.boot.SpringApplication.(SpringApplication.java:196) ... 1 more
因?yàn)轫?xiàng)目 spring boot 默認(rèn) 使用 logback ，但是我這里 指定了 log4j2
org.springframework.boot spring-boot-starter-log4j2
解決辦法
只需要 對(duì)因此的 spring boot starter 對(duì)應(yīng)依賴(lài)排除對(duì)應(yīng)的 log 依賴(lài)即可
org.springframework.boot spring-boot-starter-actuator org.springframework.boot spring-boot-starter-logging org.springframework.cloud spring-cloud-starter-gateway org.springframework.boot spring-boot-starter-logging org.springframework.boot spring-boot-starter-web org.springframework.boot spring-boot-starter-logging
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