org.springframework.context.ApplicationContextException: Unable to start ServletWebServerApplicationContext due to missing ServletWebServerFactory bean.

 

错误信息：

Caused by: org.springframework.context.ApplicationContextException: Unable to start ServletWebServerApplicationContext due to missing ServletWebServerFactory bean.
    at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.getWebServerFactory(ServletWebServerApplicationContext.java:206) ~[spring-boot-2.1.4.RELEASE.jar:2.1.4.RELEASE]
    at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.createWebServer(ServletWebServerApplicationContext.java:180) ~[spring-boot-2.1.4.RELEASE.jar:2.1.4.RELEASE]
    at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.onRefresh(ServletWebServerApplicationContext.java:154) ~[spring-boot-2.1.4.RELEASE.jar:2.1.4.RELEASE]
    ... 8 common frames omitted

 

配置信息：

@SpringBootConfiguration
public class UserApplication 
{
    public static void main( String[] args )
    {
        SpringApplication.run(UserApplication.class, args);
    }
}

 

解决方案一：

添加注解 EnableAutoConfiguration

@EnableAutoConfiguration
@SpringBootConfiguration
public class UserApplication 
{
    public static void main( String[] args )
    {
        SpringApplication.run(UserApplication.class, args);
    }
}

 

解决方案二：

使用组合注解 SpringBootApplication

@SpringBootApplication
public class UserApplication 
{
    public static void main( String[] args )
    {
        SpringApplication.run(UserApplication.class, args);
    }
}