我有一个Spring Boot应用程序,其中一个依赖项使用spring和一个嵌入式jetty来启动ad-hoc Web服务器。这导致我的spring启动应用程序以jetty而不是tomcat启动。
我的spring-boot-starter-web:
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<exclusions>
<exclusion>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-websocket</artifactId>
</exclusion>
</exclusions>
</dependency>
依赖关系pom:
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.integration</groupId>
<artifactId>spring-integration-http</artifactId>
</dependency>
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpclient</artifactId>
</dependency>
<dependency>
<groupId>org.eclipse.jetty</groupId>
<artifactId>jetty-server</artifactId>
</dependency>
<dependency>
<groupId>org.eclipse.jetty</groupId>
<artifactId>jetty-servlet</artifactId>
</dependency>
是否有可能将服务器配置为由spring boot显式使用而不是由依赖关系树推断?
修改
我进一步调查了这个问题并创建了一个repo来重现这个问题:github.com/svettwer/spring-server-test
org.eclipse.jetty.websocket:javax-websocket-server-impl
导致spring从jetty开始,不需要任何其他配置。
编辑2
Spring Boot 2.x中不再出现此问题
编辑3 我将删除前面提到的repo,但这里是导致该问题的依赖项设置:
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<version>1.5.7.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<version>1.5.7.RELEASE</version>
<scope>test</scope>
</dependency>
<!-- Comment that in to start spring with jetty-->
<dependency>
<groupId>org.eclipse.jetty.websocket</groupId>
<artifactId>javax-websocket-server-impl</artifactId>
<version>9.4.8.v20171121</version>
</dependency>
</dependencies>
答案 0 :(得分:0)
本指南可能会对您有所帮助:https://docs.spring.io/spring-boot/docs/current/reference/html/howto-embedded-web-servers.html
如果您运行mvn dependency:tree
并搜索jetty
,您可能会发现需要将其排除,例如:
spring-boot-starter-jetty
排除在示例中:
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<exclusions>
<!-- Exclude the Tomcat dependency -->
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
</exclusion>
</exclusions>
</dependency>
<!-- Use Jetty instead -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jetty</artifactId>
</dependency>
这有利于码头上的tomcat - 但你有希望得到这个想法......
希望这有帮助。
答案 1 :(得分:0)
通常,如果类路径上有spring-boot-starter-tomcat
(通过spring-boot-starter-web
),则应始终选择Tomcat,因为它优先于其他servlet容器。即使您有以下依赖项,Spring启动也将从Tomcat开始:
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.eclipse.jetty</groupId>
<artifactId>jetty-server</artifactId>
</dependency>
<dependency>
<groupId>org.eclipse.jetty</groupId>
<artifactId>jetty-webapp</artifactId>
</dependency>
<dependency>
<groupId>org.eclipse.jetty</groupId>
<artifactId>jetty-servlet</artifactId>
</dependency>
您可以通过注册自己的ServletWebServerFactory
以编程方式覆盖所选的servlet容器,例如:
@Bean
public ServletWebServerFactory factory() {
return new TomcatServletWebServerFactory();
}
您可以选择预定义的TomcatServletWebServerFactory
,JettyServletWebServerFactory
或UndertowServletWebServerFactory
。