Skip to main content

Enabling CXF goodies in Spring Boot

In this post we are going to add some of the CXF features to our existing app that we developed in previous post. These features are :
  1. ID Logging
  2. Jackson Provider for POJO to JSON conversion
  3. Swagger 2 documentation
Step 1: Configuration class
Create a RestServer class in config package as shown below


import com.fasterxml.jackson.jaxrs.json.JacksonJsonProvider;
import org.apache.cxf.feature.LoggingFeature;
import org.apache.cxf.jaxrs.swagger.Swagger2Feature;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

 * Created by Anand_Rajneesh on 3/23/2017.
public class RestServer {

    public JacksonJsonProvider jsonProvider(){
        return new JacksonJsonProvider();

    public LoggingFeature loggingFeature(){
        return new LoggingFeature();

    public Swagger2Feature swagger(){
        Swagger2Feature swagger = new Swagger2Feature();
        swagger.setTitle("Demo Spring Boot CXF Application");
        return swagger;

We have 3 @Bean methods, which are returning instances of each feature.
Step 2: POM dependencies


Step 3: Adding Swagger annotations
Add swagger annotations to Ping service that was created in previous past like below.


import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import io.swagger.annotations.ApiResponse;
import org.springframework.stereotype.Service;


 * Created by Anand_Rajneesh on 3/24/2017.
@Api(value = "ping")
public class Ping {

    @ApiOperation(value="Health Check")
    @ApiResponse(code=200, message ="")
    public Response health(){
        return Response.ok().build();

Now go ahead and deploy the server, and go at http://localhost:8080/services/services. You would get a link to swagger ui there.


Post a Comment

Popular posts from this blog

Guide : Spring Boot with Apache CXF for REST services

In this series of guide, we are going to explore writing REST services with Apache CXF using Spring Boot. The project is build using maven. I assume that you already know how to use maven. Step 1 : Adding dependencies for Spring Boot By default you have to inherit the parent pom of spring boot, but that cannot be followed everytime, so I use an alternative to that. I basically add spring boot pom as dependency so that it brings all the dependencies. <properties> <>UTF-8</> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> <java.version>1.8</java.version> <spring.version>1.4.3.RELEASE</spring.version> <cxf.version>3.1.10</cxf.version> </properties> <dependencies> <dependency> <!-- Alternative to inheriting from parent spring pom --> <groupId>org.springframework.boot&l

Power of declarative syntax of Lambda

Since Java has introduced lambda, writing code has become a breeze especially when it comes to expressing what you want to computer to do rather than how to do it. The following is a question from Project Euler and is solved using lambdas in Java8. Let d( n ) be defined as the sum of proper divisors of n (numbers less than n which divide evenly into n ). If d( a ) = b and d( b ) = a , where a ≠ b , then a and b are an amicable pair and each of a and b are called amicable numbers. For example, the proper divisors of 220 are 1, 2, 4, 5, 10, 11, 20, 22, 44, 55 and 110; therefore d(220) = 284. The proper divisors of 284 are 1, 2, 4, 71 and 142; so d(284) = 220. Evaluate the sum of all the amicable numbers under 10000.  A simple brute force solution is to check every number from 2 to 10000 and if its  an amicable number then add it to sum. Listing it in steps you are basically doing 3 things: Take numbers from 2 to 10000 If number is amicable Add it In Java 7 one will