如何在没有嵌入式 tomcat 的情况下启动 Spring Boot 应用程序? [英] How do I launch a Spring Boot application without the embedded tomcat?

问题描述

我有一个使用 jhipster 生成的 Spring Boot 应用程序，它运行良好.但是，我还需要为一些后台批处理作业创建第二个应用程序，并且这个应用程序使用了第一个应用程序的大部分 spring 服务.我所做的是创建第二个主类，它启动一个 spring 启动应用程序.问题是这也会启动嵌入式 Web 服务器和所有仅对 Web 应用程序有用的服务.我只需要没有专门绑定到 GUI 的服务、持久性和其他类.

I have a Spring Boot application which was generated using jhipster, and it works fine. However, I also need to create a second application for some back-office batch jobs, and this application uses most of the spring services of the first application. What I did is create a second main class, which starts a spring boot application. The problem is this also starts the embedded web-server and all the services that are only useful for the web app. I only need the services, persistence and other classes that are not specifically tied to the GUI.

这是我的两个主要类(简化)

Here are my two main classes (simplified)

普通的 spring-boot 应用程序:

The normal spring-boot app:

@ComponentScan
@AutoConfigure
class Application {
    public static void main(String[] args) {
        SpringApplication app = new SpringApplication(Application.class)
        app.run(args)
    }
}

后台应用:

@ComponentScan
@AutoConfigure
class BackOfficeApplication {
    public static void main(String[] args) {
        SpringApplication app = new SpringApplication(BackOfficeApplication.class)
        app.run(args)
    }
}

什么有效:我的后台应用程序可以访问我需要的一切.Spring 服务、bean 等问题:后台应用程序启动 GUI，阻止我同时启动它两次.

What works: My back office application has access to everything that I need. Spring services, beans, etc. The problem: The back office app starts the GUI, preventing me to launch it twice at the same time.

有没有办法关闭嵌入式tomcat服务器的启动?否则，有没有办法以另一种不会启动嵌入式服务器的方式加载 spring 应用程序上下文?

Is there a way to deactivate the launching of the embedded tomcat server? Otherwise, is there a way to load the spring application context in another way that wouldn't start the embedded server ?

一些细节:* 我不使用 mvn spring-boot:run 启动应用程序.我直接用java(或使用eclipse

Some details: * I don't start the app by using mvn spring-boot:run. I launch the class directly with java (or using eclipse

推荐答案

SpringApplication 有一个属性 webEnvironment.如果 Tomcat 在类路径上，则默认为 true，但您可以将其设置为 false(以编程方式或使用 spring.main.webEnvironment).

SpringApplication has a property webEnvironment. It defaults to true if Tomcat is on the classpath but you can set it to false (programmatically or with spring.main.webEnvironment).

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