Spring Boot中通过路径变量进行分页-控制器请求映射注释中不存在请求的路径变量

Question

<dependency>
    <groupId>net.kaczmarzyk</groupId>
    <artifactId>specification-arg-resolver</artifactId>
    <version>2.1.1</version>
</dependency>

@RequestMapping(method = RequestMethod.GET, value = "/cf/{destUserId}")
@ResponseBody
public PagedResponse<SystemStock> croudFundReport(@PathVariable(name = "destUserId") String eventId,
            @Conjunction (value = {
            @Or(value = @Spec(path = "metaType", params = {"meta_type"}, spec = Equal.class))},
            and = @Spec(path = "destUserId", pathVars = "destUserId", spec = Equal.class)) Specification<UserData> spec) {
        
        
    return null;
}

方法2：没有@PathVariable

@RequestMapping(method = RequestMethod.GET, value = "/cf/{destUserId}")
@ResponseBody
public PagedResponse<SystemStock> croudFundReport(@Conjunction (value = {
            @Or(value = @Spec(path = "metaType", params = {"meta_type"}, spec = Equal.class))},
            and = @Spec(path = "destUserId", pathVars = "destUserId", spec = Equal.class)) Specification<UserData> spec) {
        
        
    return null;
}

方法3：只使用path和@PathVariable的RequestMapping

@RequestMapping("/cf/{destUserId}")
@ResponseBody
public PagedResponse<SystemStock> croudFundReport(@PathVariable(name = "destUserId") String eventId,
            @Conjunction (value = {
            @Or(value = @Spec(path = "metaType", params = {"meta_type"}, spec = Equal.class))},
            and = @Spec(path = "destUserId", pathVars = "destUserId", spec = Equal.class)) Specification<UserData> spec) {
        
        
    return null;
}

方法4:RequestMapping只使用path而不使用@PathVariable

@RequestMapping("/cf/{destUserId}")
@ResponseBody
public PagedResponse<SystemStock> croudFundReport(@Conjunction (value = {
            @Or(value = @Spec(path = "metaType", params = {"meta_type"}, spec = Equal.class))},
            and = @Spec(path = "destUserId", pathVars = "destUserId", spec = Equal.class)) Specification<UserData> spec) {
        
        
    return null;
}

@RequestMapping("/cf/{destUserId}")
@ResponseBody
public PagedResponse<SystemStock> croudFundReport(@Spec(path = "destUserId", pathVars = "destUserId", spec = Equal.class) Specification<UserData> spec) {
        
    
    return null;
}

@GetMapping(path = "/cf/{destUserId}", produces = MediaType.APPLICATION_JSON_VALUE)
@ResponseBody
public PagedResponse<SystemStock> croudFundReport(@Spec(path = "destUserId", pathVars = "destUserId", spec = Equal.class) Specification<UserData> spec) {
    
    
    return null;
}

1. 路径变量支持
2. @PathVariable问题

问题是，我们可以将pathvariable作为方法参数来访问，但是当我们试图在pathvars中指定它时，在上述情况下，执行并没有到达我们的控制器，我们得到了上述相同的异常。有人帮忙吗？

Answer 1

我注意到的一件事是，您只在上一个示例中使用了GetMapping。是否有理由使用RequestMapping？

是否有不使用[JPA分页][https://www.baeldung.com/jpa-pagination]的特殊原因？

你试过以下方法吗？

@GetMapping(path = "/cf/{destUserId}", produces = MediaType.APPLICATION_JSON_VALUE)
public PagedResponse<SystemStock> croudFundReport( @PathVariable(name = "destUserId") final String destUserId) {
 // TODO implementation
}