使用 maven 为 spring-boot web 应用程序生成一个工作 war 文件

问题描述：

我们有一个 maven 管理的 spring-boot 应用程序，我们现在需要使用 WAR 文件在 tomcat 中部署它.在开发过程中，我们使用maven启动了一个嵌入式tomcat，命令如下:

We have a maven-managed spring-boot application that we now need to deploy in tomcat using a WAR file. During development, we used maven to start an embedded tomcat with the command:

mvn -D"-classpath %classpath package.path.App" -D"exec.executable=java" process-classes org.codehaus.mojo:exec-maven-plugin:1.2.1:exec

我可以通过运行 mvn war:war 来构建一个 war 文件，但是如果我尝试部署生成的 war，就会产生一个错误:

I can build a war file by running mvn war:war, but if I try to deploy the resulting war, an error is produced:

SEVERE: ContainerBase.addChild: start: 
org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext
...
Caused by: java.lang.IllegalStateException: No SpringApplication sources have been defined. Either override the configure method or add an @Configuration annotation

我尝试在 maven-war-plugin 的配置中添加一个 mainClass 指令，但无济于事.

I tried adding a mainClass directive to the maven-war-plugin's configuration, but to no avail.

答

我按照邓尼的建议成功地发动了一场战争.

I managed to build a war following dunni's advice.

基本上，我需要在扩展 SpringBootServletInitializer 的类上添加一个 @SpringBootApplication 注释，并覆盖它的 configure 方法.

Basically, I needed to add a @SpringBootApplication annotation on the class extending SpringBootServletInitializer, and override its configure method.

所以我的代码的差异就像:

So the diff of my code is like:

+@SpringBootApplication
 public class WebAppInitializer extends SpringBootServletInitializer {

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

我仍然有错误，但只有在 spring 开始之后，但我会在另一个问题中询问.

I still have an error but only after spring starts, but I will ask about that in a different question.

使用 maven 为 spring-boot web 应用程序生成一个工作 war 文件

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