英文:
Spring Bind @PathVariable to JavaBean
问题
我尝试将一个对象绑定到Spring控制器，以便它可以用作@PathVariable。我想这样做，因为有一些@PathVariable我想要传递。我已经尝试了来自 https://stackoverflow.com/questions/17149425/bind-path-variables-to-a-custom-model-object-in-spring 和 https://stackoverflow.com/questions/55792555/is-it-possible-to-bind-path-variable-and-request-param-into-a-single-object 的解决方案。但都不起作用。
我在我的控制器中创建了类似这样的内容。
@RestController
@RequestMapping("/buildings")
@RequiredArgsConstructor
public class BuildingController {
private final BuildingService buildingService;
@GetMapping("/{buildingId}/floors/{floorId}/rooms/{roomId}/sections")
public Flux<SectionDTO> getRoomSections(BuildingRequestBean request) {
return this.buildingService.getRoomSections(request);
}
}
以及 BuildingRequestBean.java 类似这样
@Getter
@Setter
public class BuildingRequestBean {
private String buildingId;
private String floorId;
private String roomId;
}
当我检查BuildingRequestBean时，当我使用GET localhost:8080/buildings/a/floors/b/rooms/c/sections调用它时，属性是null。
然而，如果我将其作为@RequestParam调用，类似于这样 GET localhost:8080/buildings/{buildingId}/floors/{floorId}/rooms/{roomId}/sections?buildingId=a&floorId=b&roomId=c，它将不会是null。
如何修复它，使其表现得像@PathVariable而不是像@RequestParam？
英文:
I try to bind an object in Spring controller so it can be used as @PathVariable. I want to do so, since there are some @PathVariable that I want to pass. I have tried the solution from https://stackoverflow.com/questions/17149425/bind-path-variables-to-a-custom-model-object-in-spring and also https://stackoverflow.com/questions/55792555/is-it-possible-to-bind-path-variable-and-request-param-into-a-single-object. But both are not working.
I have created something like this in my controller.
@RestController
@RequestMapping("/buildings")
@RequiredArgsConstructor
public class BuildingController {
private final BuildingService buildingService;
@GetMapping("/{buildingId}/floors/{floorId}/rooms/{roomId}/sections")
public Flux<SectionDTO> getRoomSections(BuildingRequestBean request) {
return this.buildingService.getRoomSections(request);
}
}
and BuildingRequestBean.java like this
@Getter
@Setter
public class BuildingRequestBean {
private String buildingId;
private String floorId;
private String roomId;
}
When I check BuildingRequestBean, the attributes is null when I call it with GET localhost:8080/buildings/a/floors/b/rooms/c/sections.
However, it will not null if I call it as @RequestParam, something like this GET localhost:8080/buildings/{buildingId}/floors/{floorId}/rooms/{roomId}/sections?buildingId=a&floorId=b&roomId=c
How to fix it so it will behave like @PathVariable rather than behave like @RequestParam?
答案1
得分: 0
你可以通过使用@ModelAttribute来获取它。
尝试使用以下代码：
@GetMapping("/{buildingId}/floors/{floorId}/rooms/{roomId}/sections")
public Flux<SectionDTO> getRoomSections(@ModelAttribute BuildingRequestBean request) {
return this.buildingService.getRoomSections(request);
}
英文:
U can get it by using @ModelAttribute
Try with this:
@GetMapping("/{buildingId}/floors/{floorId}/rooms/{roomId}/sections")
public Flux<SectionDTO> getRoomSections(@ModelAttribute BuildingRequestBean request) {
return this.buildingService.getRoomSections(request);
}
答案2
得分: -1
PathVariable 必须添加到函数参数中
尝试这样做：
@GetMapping("/{buildingId}/floors/{floorId}/rooms/{roomId}/sections")
public Flux<SectionDTO> getRoomSections(@PathVariable String buildingId, @PathVariable String floorId, @PathVariable String roomId) {
英文:
PathVariable must be added to the function parameter
Try this :
@GetMapping("/{buildingId}/floors/{floorId}/rooms/{roomId}/sections")
public Flux<SectionDTO> getRoomSections(@PathVariable String buildingId,@PathVariable String floorId ,@PathVariable String roomId) {
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