JAX-RS @DefaultValue Annotation Example with RESTEasy 3
March 13, 2015
public Response getData(@QueryParam("id") @DefaultValue("100") String id){}
Create Service Class
In the example, we have created a method, which is using @DefaultValue annotation.EmployeeService.java
package com.concretepage;
import java.util.HashMap;
import java.util.Map;
import javax.ws.rs.DefaultValue;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.QueryParam;
import javax.ws.rs.core.Response;
@Path("/manage" )
public class EmployeeService {
@GET
@Path("/data")
@Produces("application/json")
public Response getEmp(@QueryParam("id") @DefaultValue("100") String id,
@QueryParam("company") @DefaultValue("Default-XYZ") String company) {
Map<String,String> map = new HashMap<String,String>();
map.put("id", id);
map.put("company", company);
return Response.ok(map).build();
}
}
Output
Find the output with different values.1. URL: http://localhost:8080/resteasyservice-1/employee/manage/data
Both the parameter has not been given input values, so we will get default values.
{"company":"Default-XYZ","id":"100"}
2. URL: http://localhost:8080/resteasyservice-1/employee/manage/data?id=200
First parameter has been given input and second parameter is left, so it will be assigned with default values.
{"company":"Default-XYZ","id":"200"}
