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- контроллер:
- @RestController
- public class NewsController {
- @GetMapping("/data/test")
- public String test(
- @RequestParam(name="id_binding", required = false) Integer idBinding
- ) {
- return "ok";
- }
- }
- открываю в браузере:
- http://localhost:9050/data/test?id_binding=null
- ошибка:
- There was an unexpected error (type=Bad Request, status=400).
- Failed to convert value of type 'java.lang.String' to required type 'java.lang.Integer'; nested exception is java.lang.NumberFormatException: For input string: "null"
- консоль:
- 2018-11-18 20:19:27.479 WARN 26864 --- [nio-9050-exec-6] .w.s.m.s.DefaultHandlerExceptionResolver : Resolved exception caused by Handler execution: org.springframework.web.method.annotation.MethodArgumentTypeMismatchException: Failed to convert value of type 'java.lang.String' to required type 'java.lang.Integer'; nested exception is java.lang.NumberFormatException: For input string: "null"
- а так работает:
- http://localhost:9050/data/test?id_binding=1
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