Question

我是春季启动的初学者，我正在尝试创建添加两个数字（类型：POST）的REST端点，因此任何人都可以帮助我并告诉我代码中的问题在哪里？ >

package demo.controller;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;

import demo.service.ServiceAdding;

@RestController
public class DemoController {

    @Autowired
    private ServiceAdding ServiceAdding;

    @RequestMapping(value="/getNumbers", method=RequestMethod.GET)
    public ServiceAdding getNumbers() {

        ServiceAdding.setNumber1(1);
        ServiceAdding.setNumber2(3);

        return ServiceAdding;

    }

        @RequestMapping(value="/postNumbers", method=RequestMethod.POST)
        public int postNumbers (@RequestBody final ServiceAdding ServiceAdding ) {

            int sum = ServiceAdding.getNumber1() + ServiceAdding.getNumber2();
            return sum;
        }




    }

Answer 1

尝试使用@PostMapping而不是@RequestMapping

    @PostMapping(value = "postNumbers")
    public int postNumbers(...){
      ...
    }

Answer 2

您遇到什么错误？

还可以尝试向restController添加值吗？

@RestController(value="api/v1")

@RequestMapping(value = "/getNumbers, method = RequestMethod.GET, produces = "application/json")

您还可以使用@GetMapping, @PostMapping等

Answer 3

听起来好像您没有执行POST请求。您如何加载该URL？

您需要具备以下条件之一：

具有执行POST的FORM的网页
使用PostMan之类的工具（或类似工具）提交发布请求。

Answer 4

正确的代码如下：

@RestController
@RequestMapping("/api")
public class DemoController {

... other codes

    @RequestMapping(value="/postNumbers", method=RequestMethod.POST)
    public int postNumbers (@RequestBody SumNumbersRequest sumNumbersRequest) 
    {

        int sum = sumNumbersRequest.getNumber1() + sumNumbersRequest.getNumber2();
        return sum;
    }
}

@Data // from Lombok for getter setter
class SumNumbersRequest {
    private int number1;
    private int number2;
}

并且您应该使用Content-Type将json请求发布到url localhost：8080 / api / postNumber，如下所示：application / json：

{
   "number1":5,
   "number2":15
}

如何创建Spring Boot REST服务“类型：POST”？

4 个答案: