海康威视Java SDK实战

一、官网获取海康威视SDK
二、打开IDEA，新建项目导入SDK

在project Structure-> modules添加Jna.jar和examples.jar

在project Structure-> sdks添加Jna.jar和examples.jar

三、修改HCNetSDK.java
修改HCNetSDK.dll加载路径

  HCNetSDK INSTANCE = (HCNetSDK) Native.loadLibrary(System.getProperty("user.dir") +"/HCNetSDK.dll",
            HCNetSDK.class);

修改 PlayCtrl.dll加载路径

    PlayCtrl INSTANCE = (PlayCtrl) Native.loadLibrary(System.getProperty("user.dir") +"/PlayCtrl.dll",
            PlayCtrl.class);

四、运行程序
输入IP，用户名，密码，端口，点击注册

预览成功

回放功能，通道号为i+33

五、SDK程序函数调用顺序

六、SDK实战-手动录像功能
创建定时任务
task

    @Scheduled(fixedRate = 60000)//每小时执行一次    
        @Async
        public void startVideoTask() {
            try {
                HKUtil.startVideo(v.username,v.password,v.ip);
            }catch (Exception e){
                e.printStackTrace();
            }
        }

HKUtil.java

   public static void startVideo(String username,String password,String ip) {
//匿名内部类实现方式
        new Thread() {
            //重写run方法
            @Override
            public void run() {
                boolean initSuc = hCNetSDK.NET_DVR_Init();
                HKUtil a = new HKUtil();
                a.init(username,password,ip);
            }
        }.start();
    }

 
    public void init(String username,String password,String ip) {//GEN-FIRST:event_jButtonLoginActionPerformed
        //注册之前先注销已注册的用户,预览情况下不可注销
        if (bRealPlay) {
            System.out.println("注册新用户请先停止当前预览!");
            return;
        }

        if (lUserID.longValue() > -1) {
            //先注销
            hCNetSDK.NET_DVR_Logout_V30(lUserID);
            lUserID = new NativeLong(-1);
            m_iTreeNodeNum = 0;
            m_DeviceRoot.removeAllChildren();
        }
        //注册

        m_sDeviceIP = ip;//设备ip地址
        m_strDeviceInfo = new HCNetSDK.NET_DVR_DEVICEINFO_V30();
        int iPort = 8000;
        lUserID = hCNetSDK.NET_DVR_Login_V30(m_sDeviceIP,
                (short) iPort, username, password, m_strDeviceInfo);

        long userID = lUserID.longValue();
        if (userID == -1) {
            m_sDeviceIP = "";//登录未成功,IP置为空
            System.out.println("注册失败");
        } else {
            try {
                hCNetSDK.NET_DVR_StartDVRRecord(lUserID, new NativeLong(0xffff), new NativeLong());
                Thread.sleep(30000);
                hCNetSDK.NET_DVR_StopDVRRecord(lUserID, new NativeLong(0xffff));
                jButtonExitActionPerformed();
            } catch (Exception e) {
                e.printStackTrace();

            }
        }
    }

流程大致如下：
注销登录-》构建登录参数-》登录注册-》开始录制-》睡眠-》停止录制
对应方法：

 hCNetSDK.NET_DVR_Logout_V30(lUserID);//注销登录
 
 m_strDeviceInfo = new HCNetSDK.NET_DVR_DEVICEINFO_V30();//构建登录参数
  
 hCNetSDK.NET_DVR_Login_V30(m_sDeviceIP,(short) iPort, username,      password, m_strDeviceInfo);//登录注册
 
 hCNetSDK.NET_DVR_StartDVRRecord(lUserID, new NativeLong(0xffff), new NativeLong());//开始录制
 
 Thread.sleep(30000);//睡眠
 
 hCNetSDK.NET_DVR_StopDVRRecord(lUserID, new NativeLong(0xffff));//停止录制
             

结果如图