小编这次要给大家分享的是详解Java如何实现调用计算机摄像头拍照，文章内容丰富，感兴趣的小伙伴可以来了解一下，希望大家阅读完这篇文章之后能够有所收获。
本例子使用基于Java rest API的页面操作，方便远程拍照
新建Spring Boot项目
pop.xml
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.2.5.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>me.muphy</groupId>
<artifactId>recorder</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>recorder</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>com.github.sarxos</groupId>
<artifactId>webcam-capture</artifactId>
<version>0.3.12</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
</exclusion>
</exclusions>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>server.port=8080
#保存根路径
record.path=E:/workspace/share/
index.html
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>莫非照相机</title> </head> <body> <div> <div><span><a href="/tp" rel="external nofollow" >拍照</a></span></div> </div> </body> </html>
CameraController.java
package me.muphy.camera;
import me.muphy.servicce.CameraService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
@RestController
public class CameraController {
@Autowired
private CameraService cameraService;
@GetMapping("/tp")
public String takePictures(String[] args) {
String msg = cameraService.takePictures();
return "<div><span>" + msg + "</span></div><div>" +
"<span><a href=\"/ll?d=/picture\" >点击查看所有照片</a></span>" +
"<span style=\"margin-left: 20px;\"><a href=\"/\" >返回首页</a></span></div>";
}
}CameraService.java
package me.muphy.servicce;
import com.github.sarxos.webcam.Webcam;
import com.github.sarxos.webcam.WebcamResolution;
import com.github.sarxos.webcam.WebcamUtils;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;
import java.io.File;
import java.text.SimpleDateFormat;
import java.util.Date;
@Service
public class CameraService {
@Value("${download.path:E:/workspace/download/}")
private String downloadPath;
public String takePictures() {
Webcam webcam = Webcam.getDefault();
if (webcam == null) {
return "没有找到摄像设备！";
}
String filePath = downloadPath + "/picture/" + new SimpleDateFormat("yyyy-MM-dd").format(new Date());
File path = new File(filePath);
if (!path.exists()) {//如果文件不存在，则创建该目录
path.mkdirs();
}
String time = new SimpleDateFormat("yyyMMdd_HHmmss").format(new Date());
File file = new File(filePath + "/" + time + ".jpg");
webcam.setViewSize(WebcamResolution.VGA.getSize());
WebcamUtils.capture(webcam, file);
return "拍照成功！";
}
}CameraApplication.java
package me.muphy;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class CameraApplication {
public static void main(String[] args) {
SpringApplication.run(CameraApplication.class, args);
}
}当前电脑没有摄像头，因此是正常的
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