Question

我有两个控制器方法如下所示，当我向其发布JSON时，/garages/a有效（响应为200）但/garages/a/brand给出了404。它们仅因映射值而不同。

我正在使用Spring 4.1.4.RELEASE和Java配置。我没有使用Spring Boot。

控制器方法：

@RequestMapping(value = "/garages/a", method = RequestMethod.POST, headers = "Content-Type = application/json", produces = "application/json")
public Garage specificGaragePost(
@RequestBody Garage garage) {
    return garage;
}

@RequestMapping(value = "/garages/a/brand", method = RequestMethod.POST, headers = "Content-Type = application/json", produces = "application/json")
public Garage specificGarageBrandPost(
    @RequestBody Garage garage) {
    return garage;
}

车库类

public class Garage {
    private String id;
    private String brand;
    private List<Fuel> fuels;
    private double[] location;

    //Getters and setters left out for brevity

示例JSON（适用于/ garages / a URL但不适用于/ garages / a / brand）

 {
     "id": "some-id",
     "brand": "brand",
     "fuels": [],
     "location": [0,0]
 }

Answer 1

问题在于@RequestMapping sintax。删除标题部分中的空白：

@RequestMapping(value = "/garages/a", method = RequestMethod.POST, headers = "Content-Type=application/json", produces = "application/json")

@RequestMapping(value = "/garages/a/brand", method = RequestMethod.POST, headers = "Content-Type=application/json", produces = "application/json")

更好的是，使用特定于此目的的消耗，而不是使用标头来过滤Content-Type：

@RequestMapping(value = "/garages/a", method = RequestMethod.POST, consumes= "application/json", produces = "application/json")

@RequestMapping(value = "/garages/a/brand", method = RequestMethod.POST, consumes = "application/json", produces = "application/json")

Answer 2

因为当它找到/garages/a/brand时，会将其视为带有参数品牌的/garages/a/，但/garages/a/不接受任何参数。

两个Spring控制器方法，一个返回200，其他返回404.仅与映射URL不同

2 个答案: