大华视频监控对接

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几种不同方案的兼容性表：
https://open-icc.dahuatech.com/#/videoDoc/integration_web
推荐使用：WSPlayer无插件播放器
wsplayer播放器demo下载地址：
https://open-icc.dahuatech.com/#/download?currentTab=4

 下载压缩包里面有一个对接文档，按对接文档的说明，因为跨域的问题，因此需要弄后台接口代理代理大华接口服务。

 下面是API文档的网页地址：
https://open-icc.dahuatech.com/#/home?url=%3Fnav%3Dwiki%2Fevo-oauth%2FuserPass.html&version=enterprisebase/5.0.16&blank=true
 关于后台接口的转发代理，不用自己写，大华给了java示例代码(c++的也有)，可以直接调用：
https://open-icc.dahuatech.com/#/home?url=%3Fnav%3Dwiki%2Fcommon%2Fquickstart.html%23%E9%89%B4%E6%9D%83%E8%AE%A4%E8%AF%81&version=enterprisebase/5.0.16&blank=true

将示例java代码移植到项目后台中去，然后配置大华平台服务的ip、端口、key等信息即可。
 只有调用部分是自己写的，代码如下：
package org.jeecg.modules.pollute.controller;import com.alibaba.fastjson.JSONObject;import com.dahuatech.icc.demo.brm.device.DeviceDemo;import com.dahuatech.icc.demo.video.ptzControl.PtzControlDemo;import com.dahuatech.icc.demo.video.realTimePreview.RealTimePreviewDemo;import com.dahuatech.icc.demo.video.videoReplay.VideoReplayDemo;import com.dahuatech.icc.model.brm.device.ChannelPageRequest;import com.dahuatech.icc.model.brm.device.ChannelPageResponse;import com.dahuatech.icc.model.brm.device.DeviceTreeRequest;import com.dahuatech.icc.model.brm.device.DeviceTreeResponse;import com.dahuatech.icc.model.video.ptzControl.OperateCameraRequest;import com.dahuatech.icc.model.video.ptzControl.OperateCameraResponse;import com.dahuatech.icc.model.video.ptzControl.OperateDirectRequest;import com.dahuatech.icc.model.video.ptzControl.OperateDirectResponse;import com.dahuatech.icc.model.video.realTimePreview.RtspUrlRequest;import com.dahuatech.icc.model.video.realTimePreview.RtspUrlResponse;import com.dahuatech.icc.model.video.videoReplay.PlayBackByTimeResponse;import com.dahuatech.icc.model.video.videoReplay.PlaybackByTimeRequest;import com.dahuatech.icc.model.video.videoReplay.RegularVideoRecordRequest;import com.dahuatech.icc.model.video.videoReplay.RegularVideoRecordResponse;import io.swagger.annotations.Api;import io.swagger.annotations.ApiOperation;import lombok.extern.slf4j.Slf4j;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.web.bind.annotation.RequestBody;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestMethod;import org.springframework.web.bind.annotation.RestController;import javax.servlet.http.HttpServletRequest;import java.util.Arrays;/** * 鉴权的获取公钥和认证这2个接口不用显示调用，会自动执行。无需关心token有效时间，保活等 * * @Author dengjie * @since 2020-01-20 */@Slf4j@Api(tags="大华视频接口")@RestController@RequestMapping("/pollute/dahuatech")public class DahuatechController{    @Autowired    private HttpServletRequest request;    @ApiOperation(value="设备树查询", notes="设备树查询")    @RequestMapping(value = "/getDeviceTree", method = RequestMethod.POST)    public DeviceTreeResponse getDeviceTree(@RequestBody DeviceTreeRequest obj)    {        return DeviceDemo.getDeviceTree(obj);    }        @ApiOperation(value="设备通道分页查询", notes="设备通道分页查询")    @RequestMapping(value = "/getChannelPage", method = RequestMethod.POST)    public ChannelPageResponse getChannelPage(@RequestBody ChannelPageRequest obj)    {        return DeviceDemo.getChannelPage(obj);    }    @ApiOperation(value="实时-获取视频流", notes="实时-获取视频流")    @RequestMapping(value = "/StartVideo", method = RequestMethod.POST)    public RtspUrlResponse StartVideo(@RequestBody RtspUrlRequest obj)    {        return RealTimePreviewDemo.getRtspUrl(obj);    }    @ApiOperation(value="回放-获取录像文件", notes="回放-获取录像文件")    @RequestMapping(value = "/QueryRecords", method = RequestMethod.POST)    public RegularVideoRecordResponse QueryRecords(@RequestBody RegularVideoRecordRequest obj)    {        return VideoReplayDemo.getRegularVideoRecords(obj);    }    @ApiOperation(value="回放-获取视频流", notes="回放-获取视频流")    @RequestMapping(value = "/StartPlaybackByTime", method = RequestMethod.POST)    public PlayBackByTimeResponse StartPlaybackByTime(@RequestBody PlaybackByTimeRequest obj)    {        return VideoReplayDemo.getPlaybackByTimeRtspUrl(obj);    }    @ApiOperation(value="云台-方向控制", notes="云台-方向控制")    @RequestMapping(value = "/OperateDirect", method = RequestMethod.POST)    public OperateDirectResponse OperateDirect(@RequestBody OperateDirectRequest obj)    {        return PtzControlDemo.operateDirect(obj);    }    @ApiOperation(value="云台-镜头控制", notes="云台-镜头控制")    @RequestMapping(value = "/OperateCamera", method = RequestMethod.POST)    public OperateCameraResponse OperateCamera(@RequestBody OperateCameraRequest obj)    {        return PtzControlDemo.operateCamera(obj);    }}
总结一下和海康平台的区别：
海康：需要插件、不需要后台服务代理
大华：不需要插件，需要后台服务代理
 
最后申请clientId和clientSecret凭证的方法和步骤详见下面页面说明：
https://open-icc.dahuatech.com/#/home?url=%3Fnav%3Dwiki%2Fcommon%2Fquickstart.html%23%E5%87%86%E5%A4%87ICC%E7%8E%AF%E5%A2%83&version=enterprisebase/5.0.16&blank=true