由于缺少 ServletWebServerFactory bean，无法启动 ServletWeb

Question

使用 Jetty-starter，由于以下错误，我无法启动 Spring Boot 应用程序：

20:23:51.548 [main] ERROR o.s.boot.SpringApplication - Application run failed

org.springframework.context.ApplicationContextException: Unable to start web server; nested exception is org.springframework.context.ApplicationContextException: Unable to start ServletWebServerApplicationContext due to missing ServletWebServerFactory bean.

    at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.onRefresh(ServletWebServerApplicationContext.java:156) ~[spring-boot-2.1.9.RELEASE.jar:2.1.9.RELEASE]

    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:543) ~[spring-context-5.1.10.RELEASE.jar:5.1.10.RELEASE]

    at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:141) ~[spring-boot-2.1.9.RELEASE.jar:2.1.9.RELEASE]

    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:744) [spring-boot-2.1.9.RELEASE.jar:2.1.9.RELEASE]

    at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:391) [spring-boot-2.1.9.RELEASE.jar:2.1.9.RELEASE]

    at org.springframework.boot.SpringApplication.run(SpringApplication.java:312) [spring-boot-2.1.9.RELEASE.jar:2.1.9.RELEASE]

    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1215) [spring-boot-2.1.9.RELEASE.jar:2.1.9.RELEASE]

    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1204) [spring-boot-2.1.9.RELEASE.jar:2.1.9.RELEASE]

    ... 8 common frames omitted

> Task :bootRun FAILED

怎么解决这个问题呢？

Answer 1

答案是 Spring jetty 启动器无法按预期工作，您必须添加依赖项。删除启动器，然后像这样添加它们：https://medium.com/code-your-life/use-jetty9-with-spring-boot-and-gradle-85a1127c919fdependencies{  compile(“org.springframework.boot:spring-boot-starter-web”) {    exclude module: “spring-boot-starter-tomcat”  }  compile ‘org.eclipse.jetty:jetty-webapp:9.+’  compile ‘org.eclipse.jetty:jetty-jsp:9.+’}