修复了对spring-boot服务中tomcat线程池的兼容问题

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修复了对spring-boot服务中tomcat线程池的兼容问题

之前可能存在的问题

@Bean
public ConfigurableServletWebServerFactory webServerFactory() {
	TomcatServletWebServerFactory factory = new TomcatServletWebServerFactory();
	factory.addConnectorCustomizers((TomcatConnectorCustomizer) connector -> {
		connector.setProperty("relaxedQueryChars", "|{}[](),/:;<=>?@[\\]{}\\");
		connector.setProperty("relaxedPathChars", "|{}[](),/:;<=>?@[\\]{}\\");
		connector.setProperty("rejectIllegalHeader", "false");
	});

	return factory;
}

以这种形式做定制化的话，由于返回值类型是ConfigurableServletWebServerFactory，这种无法做到监控。

此问题已做了修复，返回值类型无论是ConfigurableServletWebServerFactory或者TomcatServletWebServerFactory均可。