I have an REST API project build with Spring Boot and i want to document all my Endpoints. I have implemented swagger to do it and was successfully, but recently my project doesn't run anymore, the configuration is the same that when create the project and Swagger was works.
I'm getting this error when try to run the project:
WARN 17868 --- [ restartedMain] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.context.ApplicationContextException: Failed to start bean 'documentationPluginsBootstrapper'; nested exception is java.lang.NullPointerException
....
ERROR 17868 --- [ restartedMain] o.s.boot.SpringApplication : Application run failed
org.springframework.context.ApplicationContextException: Failed to start bean 'documentationPluginsBootstrapper'; nested exception is java.lang.NullPointerException
What am i doing wrong?
This is my project configuration:
Main
package com.red.api;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.PropertySource;
import org.springframework.context.support.PropertySourcesPlaceholderConfigurer;
import org.springframework.scheduling.annotation.EnableScheduling;
@SpringBootApplication
@EnableScheduling
@PropertySource(value = "classpath:application.properties")
@PropertySource(value = "classpath:propiedades.properties")
public class BackRedApplication {
public static void main(String[] args) {
SpringApplication.run(BackRedApplication.class, args);
}
@Bean
public static PropertySourcesPlaceholderConfigurer placeHolderConfigurer() {
return new PropertySourcesPlaceholderConfigurer();
}
}
Pom.xml
...
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.6.0-SNAPSHOT</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.red.api</groupId>
<artifactId>RED</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<name>RED</name>
<description>RED</description>
<properties>
<java.version>11</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-ldap</artifactId>
</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-jersey</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-mail</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-quartz</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
<optional>true</optional>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-boot-starter</artifactId>
<version>3.0.0</version>
</dependency>
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-swagger-ui</artifactId>
<version>3.0.0</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.json</groupId>
<artifactId>json</artifactId>
<version>20200518</version>
</dependency>
<dependency>
<groupId>net.sf.jasperreports</groupId>
<artifactId>jasperreports</artifactId>
<version>6.8.0</version>
</dependency>
<dependency>
<groupId>com.itextpdf</groupId>
<artifactId>io</artifactId>
<version>7.1.9</version>
</dependency>
<dependency>
<groupId>com.itextpdf</groupId>
<artifactId>kernel</artifactId>
<version>7.1.9</version>
</dependency>
<dependency>
<groupId>com.itextpdf</groupId>
<artifactId>layout</artifactId>
<version>7.1.9</version>
</dependency>
</dependencies>
...
Configuration Class
package com.red.api.configuracion;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.client.RestTemplate;
import com.fasterxml.jackson.databind.ObjectMapper;
import springfox.documentation.builders.PathSelectors;
import springfox.documentation.builders.RequestHandlerSelectors;
import springfox.documentation.spi.DocumentationType;
import springfox.documentation.spring.web.plugins.Docket;
import springfox.documentation.swagger2.annotations.EnableSwagger2;
@Configuration
@EnableSwagger2
public class Configuracion {
@Bean
public RestTemplate rest() {
return new RestTemplate();
}
@Bean
public ObjectMapper objectMapper() {
return new ObjectMapper();
}
@Bean
public Docket redApi() {
return new Docket(DocumentationType.SWAGGER_2).select()
.apis(RequestHandlerSelectors.basePackage("com.co.dejsoftware.red.ws"))
.paths(PathSelectors.any()).build();
}
}
Controller
package com.red.api.ws;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestHeader;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import com.red.api.interfaces.InterfaceSeguridad;
@RestController
@CrossOrigin
@RequestMapping("/seguridad")
public class WsSeguridad {
private Logger logger = LogManager.getLogger(WsSeguridad.class);
@Autowired
private InterfaceSeguridad servicioSeguridad;
@PostMapping(path="/getToken", produces = MediaType.APPLICATION_JSON_VALUE)
public ResponseEntity<Object> getToken(@RequestHeader(name = "user") String usuario,
@RequestHeader(name = "pwd") String contrasena) {
try {
return ResponseEntity.ok(servicioSeguridad.getToken(usuario, contrasena));
} catch (Exception e) {
logger.error(e);
return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).build();
}
}
}
Interface
package com.red.api.interfaces;
import org.springframework.http.ResponseEntity;
public interface InterfaceSeguridad {
public ResponseEntity<Object> getToken(String usuario, String contrasena);
}
Implementation
package com.red.api.implementacion;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.json.JSONObject;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Service;
import com.red.api.interfaces.InterfaceSeguridad;
@Service
public class ServicioSeguridad implements InterfaceSeguridad {
private Logger logger = LogManager.getLogger(ServicioSeguridad.class);
public ResponseEntity<Object> getToken(String usuario, String contrasena) {
try {
System.out.println("usuario... " + usuario);
System.out.println("contrasena... " + contrasena);
JSONObject item = new JSONObject();
item.put("description", "Success...");
item.put("usuario", usuario);
item.put("contrasena", contrasena);
String jsonResponse = new JSONObject().put("exito", item).toString();
return ResponseEntity.ok(jsonResponse);
}catch (Exception e) {
logger.error(e);
return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).build();
}
}
}
springfoxversion? – Blacklist@EnableSwagger2annotation when using springfox 3. – Terrify