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