2021-10-08

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我是靠谱客的博主愤怒茉莉，最近开发中收集的这篇文章主要介绍2021-10-08，觉得挺不错的，现在分享给大家，希望可以做个参考。

概述

SpringBoot设置Tomcat响应 Status Code: 200 OK

背景
运行在tomcat容器里的web服务，在响应头信息里，一般都会包含响应状态码，例如：

Status Code: 200 OK
在tomcat 8.5以后，该响应码去掉了状态描述，变成了这样：

Status Code: 200
最近在跟银联的业务往来时，银联要求我们接收到通知后，返回接收结果，并以响应状态码来判断是否解析。这里的状态码就包括状态描述“OK”。

解决
现有系统基于Spring boot 2.3.3.RELEASE，默认tomcat版本为9.x。

首先将tomcat版本将为8.5.58，修改pom.xml文件，指定tomcat版本

<tomcat.version>8.5.58</tomcat.version>

重启应用。发现报错：

APPLICATION FAILED TO START

Description:

An attempt was made to call a method that does not exist. The attempt was made from the following location:

org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory.getWebServer(TomcatServletWebServerFactory.java:175)

The following method did not exist:

org.apache.tomcat.util.modeler.Registry.disableRegistry()V

The method’s class, org.apache.tomcat.util.modeler.Registry, is available from the following locations:

jar:file:/Users/admin/org/apache/tomcat/embed/tomcat-embed-core/8.5.58/tomcat-embed-core-8.5.58.jar!/org/apache/tomcat/util/modeler/Registry.class

The class hierarchy was loaded from the following locations:

org.apache.tomcat.util.modeler.Registry: file:/Users/admin/org/apache/tomcat/embed/tomcat-embed-core/8.5.58/tomcat-embed-core-8.5.58.jar

Action:

Correct the classpath of your application so that it contains a single, compatible version of org.apache.tomcat.util.modeler.Registry

Process finished with exit code 1

报错原因就是Spring boot 2.3.3.RELEASE不支持tomcat 8.5，

第二步，将Spring boot 版本降低到 2.1.17. RELEASE，或者其他支持tomcat8.5的版本。
根据tomcat官方文档描述，在8.5 - 9.0之间的版本中，在“Connector”配置中支持“ sendReasonPhrase”配置参数，可以将状态描述正常返回。
sendReasonPhrase
Set this attribute to true if you wish to have a reason phrase in the response. The default value is false.

Note: This option is deprecated and will be removed in Tomcat 9. The reason phrase will not be sent.

3.1 修改conf/server.xml文件，适用于外置tomcat

3.2 Spring boot代码配置，适用于内置tomcat

@Bean
public ConfigurableServletWebServerFactory webServerFactory() {
TomcatServletWebServerFactory factory = new TomcatServletWebServerFactory();
factory.addConnectorCustomizers(
connector -> connector.setAttribute("sendReasonPhrase", "true"));
return factory;
}

转载至：https://www.jianshu.com/p/2a921c61798f