在 Apache Camel 中从 Json 检索对象

Question

I'm using Apache Camel and Spring Boot to build a servlet service. I have a REST endpoint where I receive json objects. I want to read the json and map it into a POJO in my code. Here's my RouteBuilder :

public class MyRouteBuilder extends RouteBuilder{

    @Override
    public void configure() throws Exception {

    restConfiguration()
     .component("servlet")
     .host("localhost")
     .port("8080")
     .bindingMode(RestBindingMode.auto);

    rest("/say").post("/json").type(User.class).to("direct:json");
    from("direct:json").someUsefulMethod();
    }
}

Here's my User class :

public class User {
    private String id;
    private String name;
    private String age;

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getAge() {
        return age;
    }

    public void setAge(String age) {
        this.age = age;
    }
}

I followed the Apache documentation . What I want to do is to inject a json like {"id":"123", "name":"elly", "age":"29"} into an instance of my User class. How do I take the data from the REST request?
Thank all of you.

EDIT AFTER ANSWER: for completeness this is the final example code in MyRouteBuilder class:

    from("direct:json").process(new Processor() {
       public void process(Exchange exchange) throws Exception {
          User body = exchange.getIn().getBody(User.class);
          System.out.println("Input object: " + body.getName() + ", " + body.getAge());
          body.setAge("35");
          exchange.getIn().setBody(body);
          System.out.println("Output object: " + body.getName() + ", " + body.getAge());
       }
});

Answer 1

Add camel-jackson to the classpath so it can bind json to pojo.

See some of the rest examples at: https://github.com/apache/camel-examples/tree/master/examples

You can use jackson annotations on your POJOs to fine tune the binding