JAVA生成二维码并上传至阿里云

pom依赖

  <dependency><groupId>com.google.zxing</groupId><artifactId>core</artifactId><version>3.3.0</version></dependency><dependency><groupId>com.google.zxing</groupId><artifactId>javase</artifactId><version>3.0.0</version></dependency>

   JSONObject qrInfo = new JSONObject(); //二维码内容qrInfo.put("schoolId", schoolId);qrInfo.put("ID",123);qrInfo.put("time", ThreadLocalUtils.dateFormat().format(new Date()));int width = 300;int height = 300;String format = "png";String contents = qrInfo.toJSONString();BitMatrix bm = new MultiFormatWriter().encode(contents, BarcodeFormat.QR_CODE, width, height);File  file = new File("/tmp/"+ UUID.randomUUID().toString()); //保存路径Path path = file.toPath();MatrixToImageWriter.writeToPath(bm, format, path); //输出图像//将图片文件转化为字节数组字符串，并对其进行Base64编码处理InputStream inputStream = null;byte[] buffer = null;//读取图片字节数组try {inputStream = new FileInputStream(file);int count = 0;while (count == 0) {count = inputStream.available();}buffer = new byte[count];inputStream.read(buffer);} catch (IOException e) {e.printStackTrace();} finally {if (inputStream != null) {try {// 关闭inputStream流inputStream.close();} catch (IOException e) {e.printStackTrace();}}}// 对字节数组Base64编码String encode = Base64.getEncoder().encodeToString(buffer);return faceComponent.upload2(encode);

    //人脸上传public String upload2(String baseString) throws Exception{if(baseString.isEmpty()){throw new Exception("对象不可为空");}String image = null;//上传照片byte[] bytes = Base64.getDecoder().decode(baseString);image = AliOSSUtil.upload(new ByteArrayInputStream(bytes));if (image!=null){image= "https://exuecloud.oss-cn-hangzhou.aliyuncs.com/"+ image +"?x-oss-process=style/thumb_1200_auto";}else {image = "";}return image;}

import com.aliyun.oss.OSSClient;
import com.aliyun.oss.model.GetObjectRequest;
import com.aliyun.oss.model.ObjectMetadata;
import com.aliyun.oss.model.PutObjectResult;
import org.slf4j.LoggerFactory;
import org.springframework.web.multipart.MultipartFile;import java.io.File;
import java.io.InputStream;
import java.util.Date;public class AliOSSUtil {private final static org.slf4j.Logger logger = LoggerFactory.getLogger(AliOSSUtil.class);private static String END_POINT         = "oss-cn-hangzhou.aliyuncs.com";private static String ACCESS_KEY_ID     = ""; //阿里云账号private static String ACCESS_KEY_SECRET = "";private static String BUCKET_NAME       = "";//文件存储目录private static String FILE_DIR           = "mc-upload/";/*** 上传文件外部调用方法* @param file* @return 返回文件名，包含文件夹* @throws Exception*/public static String upload(MultipartFile file) throws Exception{//获取文件原始名称String originalName = file.getOriginalFilename();//获取文件扩展名（如：.jpg）String extendName = originalName.substring(originalName.lastIndexOf(".")).toLowerCase();//重命名文件保存名称String fileName = DateUtil.formatDate(new Date(),"yyyyMMddHHmmss") + UUIDUtil.getRandomNumber(4) + extendName;//获取文件数据流InputStream inputStream = file.getInputStream();//上传文件return upload(inputStream, fileName);}/*** 上传文件流* @param inputStream 输入数据流* @return 返回文件名，包含文件夹* @throws Exception*/public static String upload(InputStream inputStream) throws Exception{//重命名文件保存名称String fileName = DateUtil.formatDate(new Date(),"yyyyMMddHHmmss") + UUIDUtil.getRandomNumber(4) + ".jpg";return upload(inputStream, fileName);}/*** 上传文件流* @param inputStream 输入数据流* @param fileName 文件名* @return 返回文件名，包含文件夹* @throws Exception*/public static String upload(InputStream inputStream, String fileName) throws Exception{//创建上传Object的MetadataObjectMetadata objectMetadata = new ObjectMetadata();objectMetadata.setContentLength(inputStream.available());objectMetadata.setCacheControl("no-cache");objectMetadata.setHeader("Pragma", "no-cache");objectMetadata.setContentDisposition("inline;filename=" + fileName);// 创建OSS客户端OSSClient ossClient = new OSSClient(END_POINT, ACCESS_KEY_ID, ACCESS_KEY_SECRET);//上传文件PutObjectResult putResult = ossClient.putObject(BUCKET_NAME, FILE_DIR + fileName, inputStream, objectMetadata);//关闭数据流if (inputStream != null) {inputStream.close();}// 关闭clientossClient.shutdown();if(null != putResult){return FILE_DIR + fileName;}else{throw new Exception("文件上传失败");}}/*** 下载文件* @param objectName* @throws Exception*/public static void download(String objectName, String fileName) throws Exception {// 创建OSSClient实例。OSSClient ossClient = new OSSClient(END_POINT, ACCESS_KEY_ID, ACCESS_KEY_SECRET);// ossObject包含文件所在的存储空间名称、文件名称、文件元信息以及一个输入流。
//        OSSObject ossObject = ossClient.getObject(BUCKET_NAME, objectName);
//        BufferedReader reader = new BufferedReader(new InputStreamReader(ossObject.getObjectContent()));
//        while (true) {//            String line = reader.readLine();
//            if (line == null) break;
//        }
//        System.out.println("reader.lines()==="+reader.lines());
//        // 数据读取完成后，获取的流必须关闭，否则会造成连接泄漏，导致请求无连接可用，程序无法正常工作。
//        reader.close();ossClient.getObject(new GetObjectRequest(BUCKET_NAME, objectName), new File(fileName));// 关闭OSSClientossClient.shutdown();}/*** 删除文件* @param objectName*/public static void delete(String objectName){// 创建OSSClient实例。OSSClient ossClient = new OSSClient(END_POINT, ACCESS_KEY_ID, ACCESS_KEY_SECRET);// 删除文件。ossClient.deleteObject(BUCKET_NAME, objectName);// 关闭OSSClient。ossClient.shutdown();logger.info("文件删除成功：[{}]", objectName);}public static void main(String[] args) {//        delete("test/DSCF2919.JPG");try {download("upload/11113333.png", "C:\\Users\\liu22\\Desktop\\zhifu-web-20190404-测试\\download11123333.png");} catch (Exception e) {e.printStackTrace();}}
}

https://exuecloud.oss-cn-hangzhou.aliyuncs.com/mc-upload/202205170940041480.jpg?x-oss-process=style/thumb_1200_auto

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JAVA实现生成原生二维码并上传至阿里云

JAVA生成二维码并上传至阿里云

pom依赖

JAVA实现生成原生二维码并上传至阿里云相关推荐

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