没有嵌入式 servlet 容器的 Spring Boot [英] Spring boot without embedded servlet container

问题描述

我有一个 spring-boot web 应用程序，但我不想在嵌入式 Tomcat/Jetty 中启动它.禁用嵌入式容器的正确方法是什么?

I have a spring-boot web application, but I don't want to start it in embedded Tomcat/Jetty. What is the correct way to disable embedded container?

如果我喜欢:

        <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
        <exclusions>
           <exclusion>
               <groupId>org.springframework.boot</groupId>
               <artifactId>spring-boot-starter-tomcat</artifactId>
           </exclusion>
        </exclusions>
    </dependency>

我一直在接受

org.springframework.context.ApplicationContextException: Unable to start embedded container; 

推荐答案

由于您使用的是 Maven(而不是 Gradle)，请查看 this 指南和this 官方文档的一部分.

Since you are using Maven (instead of Gradle) check out this guide and this part of the official documentation.

基本步骤是:

使嵌入式 servlet 容器成为提供的依赖项(因此将其从生成的战争中删除)

Make the embedded servlet container a provided dependency (therefore removing it from the produced war)

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-tomcat</artifactId>
    <scope>provided</scope>
</dependency>

添加一个应用初始化程序，如:

Add an application initializer like:

import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.context.web.SpringBootServletInitializer;

public class WebInitializer extends SpringBootServletInitializer {

    @Override
    protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
        return application.sources(Application.class);
    }

}

需要该类才能引导 Spring 应用程序，因为没有使用 web.xml.

That class is needed in order to be able to bootstrap the Spring application since there is no web.xml used.

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