Spring Boot发生java.lang.AbstractMethodError解决方案

大家好，又见面了，我是你们的朋友全栈君。

Exception in thread “main” java.lang.AbstractMethodError

• 问题描述：

Exception in thread "main" java.lang.AbstractMethodError: org.springframework.boot.context.config.ConfigFileApplicationListener.supportsSourceType(Ljava/lang/Class;)Z
	at org.springframework.context.event.GenericApplicationListenerAdapter.supportsSourceType(GenericApplicationListenerAdapter.java:79)
	at org.springframework.context.event.AbstractApplicationEventMulticaster.supportsEvent(AbstractApplicationEventMulticaster.java:289)
	at org.springframework.context.event.AbstractApplicationEventMulticaster.retrieveApplicationListeners(AbstractApplicationEventMulticaster.java:221)
	at org.springframework.context.event.AbstractApplicationEventMulticaster.getApplicationListeners(AbstractApplicationEventMulticaster.java:192)
	at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:128)
	at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:122)
	at org.springframework.boot.context.event.EventPublishingRunListener.environmentPrepared(EventPublishingRunListener.java:75)
	at org.springframework.boot.SpringApplicationRunListeners.environmentPrepared(SpringApplicationRunListeners.java:54)
	at org.springframework.boot.SpringApplication.prepareEnvironment(SpringApplication.java:347)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:306)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1260)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1248)

• 解决方案：
  哎，自己真笨，Google找了半天，都没有找到合适的解决方案，有人说是包依赖版冲突，突然意识到自己主工程里面的pom.xml文件竟然添加了spring-boot-starter-parent依赖

  <parent>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-parent</artifactId>
      <version>2.1.0.RELEASE</version>
      <relativePath/> <!-- lookup parent from repository -->
  </parent>
  

  由于自己是使用Spring IO进行Spring jar包版本管理，已经做了如下配置，如果再添加上述依赖的话就会造成版本冲突，产生错误。

  <dependency>
      <groupId>io.spring.platform</groupId>
      <artifactId>platform-bom</artifactId>
      <version>Brussels-SR4</version>
      <type>pom</type>
      <scope>import</scope>
  </dependency>
  <dependency>
      <groupId>org.springframework.cloud</groupId>
      <artifactId>spring-cloud-dependencies</artifactId>
      <version>Dalston.SR2</version>
      <type>pom</type>
      <scope>import</scope>
  </dependency>
  

注：记下来，吃一堑，长一智