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1. 🐛 错误现象

报错信息（关键部分）

复现步骤

2. 🔍 问题分析

可能的原因

3. 🛠️ 解决方案

修复代码

4. 📚 经验总结

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[关于"LoggerFactory is not a Logback LoggerContext but Logback is on ......"的解决方案]
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📅 日期：2025-07-30

🔧 技术栈：Spring Boot 2.x / JDK 8

🏷️ 标签：#Java #BugFix #SpringBoot #Debug

1. 🐛 错误现象

报错信息（关键部分）

在引入百度短信调用SDK依赖以后

<dependency><groupId>com.baidubce</groupId><artifactId>bce-java-sdk</artifactId><version>0.10.362</version>
</dependency>

运行时出现下述错误.

SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/home/seaua/.m2/repository/org/apache/logging/log4j/log4j-slf4j-impl/2.15.0/log4j-slf4j-impl-2.15.0.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/home/seaua/.m2/repository/ch/qos/logback/logback-classic/1.2.11/logback-classic-1.2.11.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/home/seaua/.m2/repository/org/slf4j/slf4j-reload4j/1.7.36/slf4j-reload4j-1.7.36.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/home/seaua/.m2/repository/org/slf4j/slf4j-simple/1.7.36/slf4j-simple-1.7.36.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 "restartedMain" java.lang.reflect.InvocationTargetExceptionat 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.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49)
Caused by: java.lang.IllegalArgumentException: LoggerFactory is not a Logback LoggerContext but Logback is on the classpath. Either remove Logback or the competing implementation (class org.apache.logging.slf4j.Log4jLoggerFactory loaded from file:/home/seaua/.m2/repository/org/apache/logging/log4j/log4j-slf4j-impl/2.15.0/log4j-slf4j-impl-2.15.0.jar). If you are using WebLogic you will need to add 'org.slf4j' to prefer-application-packages in WEB-INF/weblogic.xml: org.apache.logging.slf4j.Log4jLoggerFactoryat org.springframework.util.Assert.instanceCheckFailed(Assert.java:702)at org.springframework.util.Assert.isInstanceOf(Assert.java:621)at org.springframework.boot.logging.logback.LogbackLoggingSystem.getLoggerContext(LogbackLoggingSystem.java:294)at org.springframework.boot.logging.logback.LogbackLoggingSystem.beforeInitialize(LogbackLoggingSystem.java:118)at org.springframework.boot.context.logging.LoggingApplicationListener.onApplicationStartingEvent(LoggingApplicationListener.java:238)at org.springframework.boot.context.logging.LoggingApplicationListener.onApplicationEvent(LoggingApplicationListener.java:220)at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:176)at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:169)at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:143)at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:131)at org.springframework.boot.context.event.EventPublishingRunListener.starting(EventPublishingRunListener.java:79)at org.springframework.boot.SpringApplicationRunListeners.lambda$starting$0(SpringApplicationRunListeners.java:56)at java.util.ArrayList.forEach(ArrayList.java:1259)at org.springframework.boot.SpringApplicationRunListeners.doWithListeners(SpringApplicationRunListeners.java:120)at org.springframework.boot.SpringApplicationRunListeners.starting(SpringApplicationRunListeners.java:56)at org.springframework.boot.SpringApplication.run(SpringApplication.java:298)at org.springframework.boot.SpringApplication.run(SpringApplication.java:1303)at org.springframework.boot.SpringApplication.run(SpringApplication.java:1292)at com.uav.BootApplication.main(BootApplication.java:14)... 5 more进程已结束,退出代码0

复现步骤

使用排除法,引入该依赖或注释掉该pom依赖进行程序运行来判断是否是该依赖引起的问题.

2. 🔍 问题分析

可能的原因

出现问题后首先看一下主要的报错翻译,内容如下:

java.lang.IllegalArgumentException：LoggerFactory 不是 Logback LoggerContext，但类路径中包含 Logback。请移除 Logback 或其竞争实现（从文件:/home/seaua/.m2/repository/org/apache/logging/log4j/log4j-slf4j-impl/2.15.0/log4j-slf4j-impl-2.15.0.jar 加载的类 org.apache.logging.slf4j.Log4jLoggerFactory）。如果您使用的是 WebLogic，则需要在 WEB-INF/weblogic.xml 的 prefer-application-packages 中添加“org.slf4j”：org.apache.logging.slf4j.Log4jLoggerFactory

这里提到了移除Logback和slf4j,则可能是Logback与其它日志依赖代码冲突,导致启动时不知道使用哪个类.

3. 🛠️ 解决方案

修复代码

对存在问题的依赖进行移除,保证代码正常运行.

修复前依赖（问题代码）

<dependency>
<groupId>com.baidubce</groupId>
<artifactId>bce-java-sdk</artifactId>
<version>0.10.362</version>
</dependency>

修复后依赖（安全代码）

<dependency>
<groupId>com.baidubce</groupId>
<artifactId>bce-java-sdk</artifactId>
<version>0.10.362</version>
<exclusions><exclusion><groupId>ch.qos.logback</groupId><artifactId>logback-core</artifactId></exclusion><exclusion><groupId>ch.qos.logback</groupId><artifactId>logback-classic</artifactId></exclusion>
</exclusions>
</dependency>