Consuming REST Service in Spring - spring

Question

I'm frightfully new to Spring and Java but I'm trying to consume some code for some rule validations in Easy Rules but I can't quite figure it out.
#RequestMapping(method = {RequestMethod.GET}, value = "author/field", produces= MediaType.APPLICATION_JSON_VALUE)
public #ResponseBody ResponseEntity<Enum> getField(#RequestParam(value="field", required=true) String field){
Enum enum = mongoService.findByField(field);
if(enum == null){
return new ResponseEntity<Enum>(HttpStatus.NO_CONTENT);
}else{
return new ResponseEntity<Enum>(enum,HttpStatus.OK);
}
}
So I'm trying something like:
import com.mongoservice.Enum
import com.mongoservice.Enums
RestTemplate restTemplate = new RestTemplate();
String uri = "http://localhost:9000";
//This is my confusion
List<Enums> response = restTemplate.getForObject(uri +
"/author/field?={field}", Enum.class,"a").getEnums();
String value = response.getValue().toString().trim();
//this is the record i'm checking against that is pulling a specific string value and what i'm expecting
String record = "a";
return (value == record);
The JSON data I'm trying to pull back is modeled like this but I need to validate to make sure that record equals one of the values from enums[] json array
{
"field": "a",
"descriptor": "blah",
"enums": [
{
"value": "h",
"description": "blah"
},
{
"value": "e",
"description": "blah"
},
{
"value": "l",
"description": "blah"
},
{
"value": "p",
"description": "blah"
}
]
}

Answer 1

What is the problem that you are seeing is it just not matching? If so it could be because you are using == instead of String.equals. Try modifying your code to:
return record.equals(value);
See Java String.equals versus == for more.

Answer 2

Can you change String uri = "http://localhost:9000"
and missed the path variable name field it should be like author/field?field={field} as per your controller description.