springboot启动打印controller映射url

1. springboot启动打印controller映射url日志

2023-10-11 14:09:46.482 TRACE 27244 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : 
	c.d.c.j.w.c.LabelConfigController:
	{POST [/labelConfig/add]}: add(LabelConfig)
	{POST [/labelConfig/update]}: update(LabelConfig)
	{GET [/labelConfig/delete]}: delete(Integer)
	{POST [/labelConfig/list]}: list(LabelConfig)
	{GET [/labelConfig/detail]}: detail(Integer)
	{POST [/labelConfig/page]}: page(LabelConfig,Page)
2023-10-11 14:09:46.486 TRACE 27244 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : 
	o.s.b.a.w.s.e.BasicErrorController:
	{ [/error]}: error(HttpServletRequest)
	{ [/error], produces [text/html]}: errorHtml(HttpServletRequest,HttpServletResponse)

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2. 分析AbstractHandlerMethodMapping源码

protected void detectHandlerMethods(Object handler) {
		Class handlerType = (handler instanceof String ?
				obtainApplicationContext().getType((String) handler) : handler.getClass());

		if (handlerType != null) {
			Class userType = ClassUtils.getUserClass(handlerType);
			Map methods = MethodIntrospector.selectMethods(userType,
					(MethodIntrospector.MetadataLookup) method -> {
						try {
							return getMappingForMethod(method, userType);
						}
						catch (Throwable ex) {
							throw new IllegalStateException("Invalid mapping on handler class [" +
									userType.getName() + "]: " + method, ex);
						}
					});
			if (logger.isTraceEnabled()) {
				logger.trace(formatMappings(userType, methods));
			}
			else if (mappingsLogger.isDebugEnabled()) {
				mappingsLogger.debug(formatMappings(userType, methods));
			}
			methods.forEach((method, mapping) -> {
				Method invocableMethod = AopUtils.selectInvocableMethod(method, userType);
				registerHandlerMethod(handler, invocableMethod, mapping);
			});
		}
	}
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注意：低版本spring-webmvc-5.2.13.RELEASE.jar没有

else if (mappingsLogger.isDebugEnabled()) {
	mappingsLogger.debug(formatMappings(userType, methods));
}
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3. yml配置日志

logging:
  level:
    root: INFO
    # 低版本spring-webmvc-5.2.13.RELEASE.jar
    org.springframework.web: TRACE
    # 高版本spring-webmvc-5.3.13.jar
#    _org.springframework.web: DEBUG

开启  _org.springframework.web: DEBUG 时日志
2023-10-11 14:23:54.649 DEBUG 30144 --- [           main] _.s.web.servlet.HandlerMapping.Mappings  : 
	c.d.c.j.w.c.LabelConfigController:
	{POST [/labelConfig/add]}: add(LabelConfig)
	{POST [/labelConfig/update]}: update(LabelConfig)
	{GET [/labelConfig/delete]}: delete(Integer)
	{POST [/labelConfig/list]}: list(LabelConfig)
	{GET [/labelConfig/detail]}: detail(Integer)
	{POST [/labelConfig/page]}: page(LabelConfig,Page)
2023-10-11 14:23:54.653 DEBUG 30144 --- [           main] _.s.web.servlet.HandlerMapping.Mappings  : 
	o.s.b.a.w.s.e.BasicErrorController:
	{ [/error]}: error(HttpServletRequest)
	{ [/error], produces [text/html]}: errorHtml(HttpServletRequest,HttpServletResponse)	
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