CameraService.java
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package com.huaheng.api.erp.service;
import com.huaheng.api.erp.controller.ErpController;
import com.huaheng.common.utils.file.FileUtils;
import com.huaheng.framework.web.domain.AjaxResult;
import com.netsdk.demo.module.CapturePictureModule;
import com.netsdk.demo.module.LoginModule;
import com.netsdk.lib.NetSDKLib;
import com.sun.jna.Pointer;
import org.springframework.stereotype.Service;
import javax.imageio.ImageIO;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletResponse;
import java.awt.image.BufferedImage;
import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.IOException;
import java.io.OutputStream;
@Service
public class CameraService {
public AjaxResult camera(String ip, int port, String userName, String password, HttpServletResponse response){
DisConnect connect = new DisConnect();
HaveReConnect checkReConnect = new HaveReConnect();
//初始化设备
boolean init = LoginModule.init(connect, checkReConnect);
if(!init){
return AjaxResult.error("初始化失败");
}
//登录
boolean login = LoginModule.login(ip, port, userName, password);
if(login){
//设置回调函数
CapturePictureModule.setSnapRevCallBack(m_CaptureReceiveCB);
//抓图 0 主通道
CapturePictureModule.remoteCapturePicture(0);
LoginModule.logout();
}else{
return AjaxResult.error("登录失败");
}
OutputStream outputStream = null;
try {
outputStream = response.getOutputStream();
FileUtils.writeBytes("./Capture/my.jpg",outputStream);
} catch (Exception e) {
e.printStackTrace();
}
return AjaxResult.success("");
}
public fCaptureReceiveCB m_CaptureReceiveCB = new fCaptureReceiveCB();
public class fCaptureReceiveCB implements NetSDKLib.fSnapRev{
BufferedImage bufferedImage = null;
@Override
public void invoke(NetSDKLib.LLong lLoginID, Pointer pBuf, int RevLen, int EncodeType, int CmdSerial, Pointer dwUser) {
if(pBuf != null && RevLen > 0) {
File path1 = new File("./Capture/");
if (!path1.exists()) {
path1.mkdir();
}
String strFileName = path1.getAbsolutePath() + "/my.jpg";
System.out.println("strFileName = " + strFileName);
byte[] buf = pBuf.getByteArray(0, RevLen);
ByteArrayInputStream byteArrInput = new ByteArrayInputStream(buf);
try {
bufferedImage = ImageIO.read(byteArrInput);
if(bufferedImage == null) {
return;
}
ImageIO.write(bufferedImage, "jpg", new File(strFileName));
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
}