java springmvc@PathVariable个别参数可能为空处理方法

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问：假如id为非必需参数，可以为空，应该怎么处理

@RequestMapping(value = "/get/{id}/{userId}", method = RequestMethod.GET)public Result getMemberShip(@PathVariable("id") int id,@PathVariable("userId") int userId) {

可以指定多个匹配路径

@RequestMapping(value = {"/get/{userId}", "/get/{id}/{userId}"}, method = RequestMethod.GET)

然后设置参数非必须

@PathVariable(required = false) String id

示例

@ApiOperation("获取订单接口")@ApiImplicitParams({@ApiImplicitParam(name = "pin", paramType = "path", dataType = "String", value = "账号", required = true),@ApiImplicitParam(name = "phone", paramType = "path", dataType = "String", value = "电话号码", required = false)})@ApiResponses({@ApiResponse(code = 501, message = "自定义异常xxx"), @ApiResponse(code = 500, message = "500", response = Errors.class)})@GetMapping(value = {"/list/{pin}/{phone}", "/list/{pin}"})public List<OrderBaseVO> getOrderList(@PathVariable String pin, @PathVariable(required = false) String phone) {}

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