FailureAnalyzer:启动失败的报错是怎么生成的

  找不到依赖的 Bean(退出码 1):
    APPLICATION FAILED TO START
    ***************************
    Description:
    Parameter 0 of constructor in demo.NeedsMissing required a bean of type 'demo.MissingDep' that could not be found.
    Action:
    Consider defining a bean of type 'demo.MissingDep' in your configuration.
  同类型有两个 Bean(退出码 1):
    APPLICATION FAILED TO START
    ***************************
    Description:
    Parameter 0 of constructor in demo.NeedsDup required a single bean, but 2 were found:
    	- dup1: defined in file [<jtmp>/x85/out/demo/Dup1.class]
    	- dup2: defined in file [<jtmp>/x85/out/demo/Dup2.class]
    This may be due to missing parameter name information
    Action:
    Consider marking one of the beans as @Primary, updating the consumer to accept multiple beans, or using @Qualifier to identify the bean that should be consumed
  构造器循环依赖(退出码 1):
    APPLICATION FAILED TO START
    ***************************
    Description:
    The dependencies of some of the beans in the application context form a cycle:
    ┌─────┐
    |  cycA defined in file [<jtmp>/x85/out/demo/CycA.class]
    ↑     ↓
    |  cycB defined in file [<jtmp>/x85/out/demo/CycB.class]
    └─────┘
    Action:
    Relying upon circular references is discouraged and they are prohibited by default. Update your application to remove the dependency cycle between beans. As a last resort, it may be possible to break the cycle automatically by set
  @ConfigurationProperties 绑定失败(bp.port=abc)(退出码 1):
    APPLICATION FAILED TO START
    ***************************
    Description:
    Failed to bind properties under 'bp.port' to int:
        Property: bp.port
        Value: "abc"
        Origin: "bp.port" from property source "systemProperties"
        Reason: failed to convert java.lang.String to int (caused by java.lang.NumberFormatException: For input string: "abc")
    Action:
    Update your application's configuration
  @Value 占位符没有值(退出码 1):
    没有失败报告;控制台共 46 行,其中以 at 开头的堆栈帧 32 行;最里面的异常:Caused by: org.springframework.util.PlaceholderResolutionException: Could not resolve placeholder 'nope.value' in value "${nope.value}"
  数据源:有 JDBC 驱动但没配 url(退出码 1):
    APPLICATION FAILED TO START
    ***************************
    Description:
    Failed to configure a DataSource: 'url' attribute is not specified and no embedded datasource could be configured.
    Reason: Failed to determine a suitable driver class
    Action:
    Consider the following:
    	If you want an embedded database (H2, HSQL or Derby), please put it on the classpath.
    	If you have database settings to be loaded from a particular profile you may need to activate it (no profiles are currently active).
  端口被占用:
  (先让别的进程占住 53962 端口,退出码 1)
    APPLICATION FAILED TO START
    ***************************
    Description:
    Web server failed to start. Port 53962 was already in use.
    Action:
    Identify and stop the process that's listening on port 53962 or configure this application to listen on another port.

  扫描 classpath 上全部 jar 的 META-INF/spring.factories,登记在 FailureAnalyzer 名下的类一共 25 个,分布在 5 个 jar 里:
    spring-boot-autoconfigure-4.0.8.jar:2 个,例如 ['NoSuchBeanDefinitionFailureAnalyzer', 'BundleContentNotWatchableFailureAnalyzer']
    spring-boot-web-server-4.0.8.jar:2 个,例如 ['PortInUseFailureAnalyzer', 'MissingWebServerFactoryBeanFailureAnalyzer']
    spring-boot-tomcat-4.0.8.jar:1 个,例如 ['ConnectorStartFailureAnalyzer']
    spring-boot-4.0.8.jar:18 个,例如 ['ConfigDataNotFoundFailureAnalyzer', 'IncompatibleConfigurationFailureAnalyzer', 'NotConstructorBoundInjectionFailureAnalyzer']
    spring-boot-jdbc-4.0.8.jar:2 个,例如 ['DataSourceBeanCreationFailureAnalyzer', 'HikariDriverConfigurationFailureAnalyzer']
  另外 META-INF/spring/*.FailureAnalyzer.imports 形式的文件:0 个

  抛 MyConfigException 的 @PostConstruct,登记了 MyAnalyzer(退出码 1):
    APPLICATION FAILED TO START
    ***************************
    Description:
    应用缺少必需的配置:缺少配置项 app.licence-key
    Action:
    在 application.properties 里加上这个配置项,或者设置对应的环境变量。
  抛 OtherException,没有登记分析器(退出码 1):没有失败报告;控制台共 39 行,其中以 at 开头的堆栈帧 25 行;最里面的异常:Caused by: demo.OtherException: 没人给我写分析器

  找不到依赖的 Bean:默认控制台 18 行(其中失败报告 6 行,堆栈帧 0 行);加 --debug 之后 404 行,其中堆栈帧(以 at 开头的行)有 24 行,另外出现了条件评估报告:True
  --debug 之后多出来的内容里,以 Caused by 或异常类名开头的行:
    org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'demo.MissingDep' available: expected at least 1 bean which qualifies as autowire candidate. Dependency anno