Consider defining a bean of type 'javax.servlet.ServletContext' in your configuration - api

Question

I'm trying to connect an API witha postgres database. And for that, I'm using Spring Boot.
When testing the api, i keep getting the error
Consider defining a bean of type 'javax.servlet.ServletContext' in your configuration.
I understand that i need a #Bean for ServletController, but I donw know exactly what this bean should do. When i made a generic one, but then the console told me to revisit it. I have no idea what to do here, and stackoverflow hasn't helped either.
Here's my Application file:
#SpringBootApplication
#SwaggerDefinition
#EnableSwagger2
#EnableConfigurationProperties(XXXXConfiguracaoApplication.class)
public class FonumS3ApiApplication {
public static void main(String[] args) {
SpringApplication.run(XXXXApiApplication.class, args);
}
#Bean
public Docket api() {
return new Docket(DocumentationType.SWAGGER_2)
.select()
.apis(RequestHandlerSelectors.any())
.paths(PathSelectors.any())
.build()
.apiInfo(apiInfo());
}
private ApiInfo apiInfo() {
return new ApiInfo(
"API XXXX",
"API XXXX para integrações entre sistemas.",
"API V1",
"Terms of service",
new Contact("XXXX", "www.XXXX.com", "XXXX.XXXX#XXXX.com"),
"License of XXX", "API license URL", Collections.emptyList());
}
}
}
(the annotations are there, but for some reason, the stackoverflow did not accept them) and my pom is
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.4.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-validator</artifactId>
<version>6.0.13.Final</version>
</dependency>
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-api</artifactId>
<version>7.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<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>
<dependency>
<groupId>org.postgresql</groupId>
<artifactId>postgresql</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-configuration-processor</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-swagger2</artifactId>
<version>2.8.0</version>
</dependency>
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-swagger-ui</artifactId>
<version>2.8.0</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>

Answer 1

As you have excluded Tomcat from web and added Tomcat provided scope so I assume you are trying to create war and deploy on external Tomcat, so you have to extend SpringBootServletInitializer and override configure method.
#SpringBootApplication
#SwaggerDefinition
#EnableSwagger2
#EnableConfigurationProperties(XXXXConfiguracaoApplication.class)
public class FonumS3ApiApplication extends SpringBootServletInitializer {
public static void main(String[] args) {
SpringApplication.run(XXXXApiApplication.class, args);
}
#Override
protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
return application.sources(Application.class);
}
#Bean
public Docket api() {
return new Docket(DocumentationType.SWAGGER_2)
.select()
.apis(RequestHandlerSelectors.any())
.paths(PathSelectors.any())
.build()
.apiInfo(apiInfo());
}
private ApiInfo apiInfo() {
return new ApiInfo(
"API XXXX",
"API XXXX para integrações entre sistemas.",
"API V1",
"Terms of service",
new Contact("XXXX", "www.XXXX.com", "XXXX.XXXX#XXXX.com"),
"License of XXX", "API license URL", Collections.emptyList());
}
}
}
Or if you are running with embedded Tomcat then don't change anything in main class and remove exclusion from web and remove Tomcat jar:
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
and remove Tomcat jar below:
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
<scope>provided</scope>
</dependency>