How to serialize ANY Object into a URI?

Question

My basic question: is there anything built that already does this automatically (doesn\'t have to be part of a popular library/package)? The main things I\'m working with ar

Answer 1

I think, solution number 4 is OK. It is simple to understand and clear.

I propose similar solution in which we can use @JsonAnySetter annotation. Please, see below example:

import com.fasterxml.jackson.annotation.JsonAnySetter;
import com.fasterxml.jackson.databind.ObjectMapper;

public class JacksonProgram {

    public static void main(String[] args) throws Exception {
        C1 c1 = new C1();
        c1.setProp1("a");
        c1.setProp3("c");

        User user = new User();
        user.setName("Tom");
        user.setSurname("Irg");

        ObjectMapper mapper = new ObjectMapper();
        System.out.println(mapper.convertValue(c1, UriFormat.class));
        System.out.println(mapper.convertValue(user, UriFormat.class));
    }
}

class UriFormat {

    private StringBuilder builder = new StringBuilder();

    @JsonAnySetter
    public void addToUri(String name, Object property) {
        if (builder.length() > 0) {
            builder.append("&");
        }
        builder.append(name).append("=").append(property);
    }

    @Override
    public String toString() {
        return builder.toString();
    }
}

Above program prints:

prop1=a&prop2=null&prop3=c
name=Tom&surname=Irg

And your getRequest method could look like this:

public String getRequest(String url, Object obj) {
    String serializedUri = mapper.convertValue(obj, UriFormat.class).toString();
    String response = restTemplate.getForObject(url + "?" + serializedUri, String.class);
    return response;
}

Answer 2

Lets we have c1.

c1.setC1prop1("C1prop1");
c1.setC1prop2("C1prop2");
c1.setC1prop3("C1prop3");

Converts c1 into URI

    UriComponentsBuilder.fromHttpUrl("http://test.com")
            .queryParams(new ObjectMapper().convertValue(c1, LinkedMultiValueMap.class))
            .build()
            .toUri());

After we will have

    http://test.com?c1prop1=C1prop1&c1prop2=C1prop2&c1prop3=C1prop3