Stephane Karagulmez Stephane Karagulmez - 1 year ago 133
Java Question

Using Camel with Spring-boot to build a REST Application

Basically, I want to be able to post an object in JSON and print the details of this object using Java.

In order to o that I want (and I have to) use SPRING-BOOT and Camel

This is the class reprensting my object :

public class Response {
private long id;
private String content;

public Response(){


public Response(long id, String content) { = id;
this.content = content;

public long getId() {
return id;

public void setId(long id) { = id;

public String getContent() {
return content;

public void setContent(String content){
this.content = content;


Then I have a Rest Controller :

public class BasicController {

private static final String template = "Hello, %s!";
private final AtomicLong counter = new AtomicLong();

//Handle a get request
public Response getResponse(@RequestParam(value="name", defaultValue="World") String name) {
System.out.println("Handle by spring");
return new Response(counter.incrementAndGet(),
String.format(template, name));

//Handle a post request
@RequestMapping(value = "/post", method = RequestMethod.POST)
public ResponseEntity<Response> update(@RequestBody Response rep) {

if (rep != null) {
rep.setContent("HANDLE BY SPRING");
return new ResponseEntity<Response>(rep, HttpStatus.OK);

With this code i'm able to handle a post request and print detail BUT I have to use Camel. So I tryed the following :

1) I added a bean conf

public class App

private static final String CAMEL_URL_MAPPING = "/camel/*";
private static final String CAMEL_SERVLET_NAME = "CamelServlet";

public static void main(String[] args) {, args);

public ServletRegistrationBean servletRegistrationBean() {
ServletRegistrationBean registration = new ServletRegistrationBean(new CamelHttpTransportServlet(), CAMEL_URL_MAPPING);
return registration;

2) Then I created 2 routes.

<?xml version="1.0" encoding="UTF-8"?>
<routes xmlns="">
<!-- <route id="test"> -->
<!-- <from uri="timer://trigger"/> -->
<!-- <to uri="log:out"/> -->
<!-- </route> -->
<route id="test2">
<from uri="servlet:///test"/>
<to uri="log:Handle by camel"/>

With this i'm able to hand a request on camel/* BUT I don't know how to make the link beetween Spring and camel.. Is there a way to handle a request with my spring controller and then call a camel route ? On the same URL..

jny jny
Answer Source

You can use autowired producerTemplate to call Camel routes. It will be created if you add the dependency:

    <version>${camel.version}</version> <!-- use the same version as your Camel core version -->

For more info you can see Camel documentation here.

In your case you would call something like:

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