|  |  | 
 |  |  |     @ApiImplicitParams({ | 
 |  |  |             @ApiImplicitParam(name = "app", value = "应用名", dataTypeClass = String.class), | 
 |  |  |             @ApiImplicitParam(name = "stream", value = "流id", dataTypeClass = String.class), | 
 |  |  |             @ApiImplicitParam(name = "mediaServerId", value = "媒体服务器id", dataTypeClass = String.class), | 
 |  |  |             @ApiImplicitParam(name = "mediaServerId", value = "媒体服务器id", dataTypeClass = String.class, required = false), | 
 |  |  |     }) | 
 |  |  |     @GetMapping(value = "/stream_info_by_app_and_stream") | 
 |  |  |     @ResponseBody | 
 |  |  |     public WVPResult<StreamInfo> getStreamInfoByAppAndStream(@RequestParam String app, @RequestParam String stream, @RequestParam String mediaServerId){ | 
 |  |  |     public WVPResult<StreamInfo> getStreamInfoByAppAndStream(@RequestParam String app, @RequestParam String stream, @RequestParam(required = false) String mediaServerId){ | 
 |  |  |         StreamInfo streamInfoByAppAndStreamWithCheck = mediaService.getStreamInfoByAppAndStreamWithCheck(app, stream, mediaServerId); | 
 |  |  |         WVPResult<StreamInfo> result = new WVPResult<>(); | 
 |  |  |         if (streamInfoByAppAndStreamWithCheck != null){ |