解决摄像头无法显示问题

VisualInspection_server/src/main/java/com/xintong/visualinspection/mapper/cluster/WebcamMapper.xml

@@ -73,7 +73,7 @@
 		SELECT
 		*
 		FROM t_br_layer_webcam
-		WHERE DEVICE_ID =  #{deviceid,jdbcType=VARCHAR}
+		WHERE DEVICE_ID =  #{deviceid,jdbcType=VARCHAR} LIMIT 1
 	</select>
 
 	<select id="getWebcams" parameterType="com.xintong.visualinspection.bean.Webcam"