關於RestTemplate的小筆記

RestTemplate提供了多種便捷訪問遠程Http服務的方法，是一種簡單便捷的訪問restful服務模板類，是Spring提供的用於訪問Rest服務的客戶端模板工具集。

RestTemplate官網地址：https://docs.spring.io/spring/docs/current/javadoc-api/org/springframework/web/client/RestTemplate.html

SpringBoot項目中配置：

@Configuration
public class ApplicationContextConfig {

    @Bean
    public RestTemplate getRestTemplate(){
        return new RestTemplate();
    }
}

api比較簡單，使用例子：

@RestController
@Slf4j
public class OrderController {

    private static final String PAYMENT_URL = "http://localhost:8001";

    @Resource
    private RestTemplate restTemplate;


    @GetMapping(value = "/consumer/payment/create")
    public CommonResult<Integer> create(Payment payment) {

        return restTemplate.postForObject(PAYMENT_URL + "/payment/create", payment, CommonResult.class);
    }

    @GetMapping(value = "consumer/payment/get/{id}")
    public CommonResult<Payment> getPaymentByid(@PathVariable("id") Integer id) {
        return restTemplate.getForObject(PAYMENT_URL + "/payment/get/" + id, CommonResult.class);
    }
}