package com.ycl.service.oss.impl;
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import com.aliyun.oss.OSS;
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import com.aliyun.oss.OSSClientBuilder;
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import com.aliyun.oss.model.ObjectMetadata;
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import com.aliyun.oss.model.VoidResult;
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import com.ycl.service.oss.OssService;
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import com.ycl.utils.ConstantPropertiesUtils;
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import com.ycl.utils.common.RandomUtils;
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import org.springframework.stereotype.Service;
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import org.springframework.web.multipart.MultipartFile;
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import javax.imageio.IIOImage;
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import javax.imageio.ImageIO;
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import javax.imageio.ImageWriteParam;
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import javax.imageio.ImageWriter;
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import javax.imageio.stream.ImageOutputStream;
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import java.awt.*;
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import java.awt.image.BufferedImage;
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import java.io.*;
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import java.net.URL;
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import java.net.URLDecoder;
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import java.time.LocalDate;
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import java.time.LocalDateTime;
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import java.time.format.DateTimeFormatter;
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import java.util.Arrays;
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import java.util.Date;
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@Service
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public class OssServiceImpl implements OssService {
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@Override
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public String uploadImages(MultipartFile file) {
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DateTimeFormatter dtf2 = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
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System.out.println("开始上传--" + dtf2.format(LocalDateTime.now()));
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if (file == null) {
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return "上传文件为空";
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}
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String endpoint = ConstantPropertiesUtils.END_POINT;
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String accessKeyId = ConstantPropertiesUtils.ACCESS_KEY_ID;
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String accessKeySecret = ConstantPropertiesUtils.ACCESS_KEY_SECRET;
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String bucketName = ConstantPropertiesUtils.BUCKET_NAME;
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// 创建OSSClient实例。
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OSS ossClient = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);
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// 上传文件流
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try {
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// 获取文件的名称
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byte[] newImg = file.getBytes();
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String originalFilename = file.getOriginalFilename();
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String fileType = originalFilename.substring(originalFilename.lastIndexOf("."));
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DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyyMMdd");
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String fileName = "sczf/" + LocalDateTime.now().format(formatter) + RandomUtils.generateRandomInt(8) + fileType;
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if (".png".equalsIgnoreCase(fileType) || ".jpg".equalsIgnoreCase(fileType) || ".jpeg".equalsIgnoreCase(fileType)) {
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if (file.getSize() > 2097152) {
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newImg = compressUnderSize(file.getBytes(), 2097152);
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}
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}
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ObjectMetadata objectMetadata = new ObjectMetadata();
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objectMetadata.setContentType(getcontentType(fileName.substring(fileName.lastIndexOf("."))));
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// 调用oss的方法实现长传
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// 第一个参数 bucketName
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// 第二个参数 上传到oss的文件路径和文件名称
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ossClient.putObject(bucketName, fileName, new ByteArrayInputStream(newImg), objectMetadata);
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// 关闭OSSClient。
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ossClient.shutdown();
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// 把上传的文件路径返回 （手动拼接）
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// 这里设置图片有效时间 我设置了30年
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Date expiration = new Date(System.currentTimeMillis() + (long) 946080000 * 1000);
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String url = ossClient.generatePresignedUrl(bucketName, fileName, expiration).toString();
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System.out.println("上传结束--" + url + "------" + dtf2.format(LocalDateTime.now()));
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return url;
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} catch (Exception e) {
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System.out.println("uploadImages上传图片失败：");
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// e.printStackTrace();
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return null;
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}
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}
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/**
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* 按照 宽高 比例压缩
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*
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* @param imgIs 待压缩图片输入流
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* @param scale 压缩刻度
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* @param out 输出
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* @return 压缩后图片数据
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* @throws IOException 压缩图片过程中出错
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*/
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public byte[] compress(byte[] srcImgData, double scale) throws IOException {
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BufferedImage bi = ImageIO.read(new ByteArrayInputStream(srcImgData));
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int width = (int) (bi.getWidth() * scale); // 源图宽度
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int height = (int) (bi.getHeight() * scale); // 源图高度
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Image image = bi.getScaledInstance(width, height, Image.SCALE_SMOOTH);
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BufferedImage tag = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
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Graphics g = tag.getGraphics();
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g.setColor(Color.RED);
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g.drawImage(image, 0, 0, null); // 绘制处理后的图
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g.dispose();
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ByteArrayOutputStream bOut = new ByteArrayOutputStream();
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ImageIO.write(tag, "JPEG", bOut);
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return bOut.toByteArray();
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}
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/**
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* 将图片压缩到指定大小以内
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*
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* @param srcImgData 源图片数据
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* @param maxSize 目的图片大小
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* @return 压缩后的图片数据
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*/
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public byte[] compressUnderSize(byte[] srcImgData, long maxSize) {
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double scale = 0.9;
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byte[] imgData = Arrays.copyOf(srcImgData, srcImgData.length);
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if (imgData.length > maxSize) {
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do {
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try {
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imgData = compress(imgData, scale);
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} catch (IOException e) {
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throw new IllegalStateException("压缩图片过程中出错，请及时联系管理员！", e);
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}
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} while (imgData.length > maxSize);
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}
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return imgData;
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}
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private byte[] readInputStream(InputStream inStream) throws Exception {
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ByteArrayOutputStream outStream = new ByteArrayOutputStream();
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//创建一个Buffer字符串
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byte[] buffer = new byte[1024];
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//每次读取的字符串长度，如果为-1，代表全部读取完毕
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int len = 0;
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//使用一个输入流从buffer里把数据读取出来
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while ((len = inStream.read(buffer)) != -1) {
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//用输出流往buffer里写入数据，中间参数代表从哪个位置开始读，len代表读取的长度
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outStream.write(buffer, 0, len);
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}
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//关闭输入流
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inStream.close();
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//把outStream里的数据写入内存
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return outStream.toByteArray();
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}
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@Override
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public boolean deleteImages(String fileUrl) {
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try {
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String endpoint = ConstantPropertiesUtils.END_POINT;
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String accessKeyId = ConstantPropertiesUtils.ACCESS_KEY_ID;
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String accessKeySecret = ConstantPropertiesUtils.ACCESS_KEY_SECRET;
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String bucketName = ConstantPropertiesUtils.BUCKET_NAME;
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//创建OSSClient实例
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OSS ossClient = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);
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String imgFile = fileUrl.replace(ConstantPropertiesUtils.PREFIX_URL, "");
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String fileName = imgFile;
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if (imgFile.contains("?")) {
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fileName = imgFile.substring(0, imgFile.indexOf("?"));
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}
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fileName = URLDecoder.decode(fileName, "UTF-8");
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// 根据BucketName,objectName删除文件
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boolean b = ossClient.doesObjectExist(bucketName, fileName);
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if (b) {
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VoidResult voidResult = ossClient.deleteObject(bucketName, fileName);
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// System.out.println(voidResult.toString());
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}
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ossClient.shutdown();
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return true;
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} catch (Exception e) {
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System.out.println("-------删除图片失败，图片地址:" + fileUrl);
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}
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return false;
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}
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@Override
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public String uploadImages(InputStream inputStream, String ext, Integer times) {
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if (times < 3) {
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String endpoint = ConstantPropertiesUtils.END_POINT;
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String accessKeyId = ConstantPropertiesUtils.ACCESS_KEY_ID;
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String accessKeySecret = ConstantPropertiesUtils.ACCESS_KEY_SECRET;
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String bucketName = ConstantPropertiesUtils.BUCKET_NAME;
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DateTimeFormatter dtf2 = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
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// System.out.println("准备上传--" + dtf2.format(LocalDateTime.now()));
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// 创建OSSClient实例。
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OSS ossClient = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);
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// 上传文件流
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try {
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// 获取文件的名称
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LocalDate date = LocalDate.now();
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DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyyMMdd");
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String fileName = "sczf/" + date.format(formatter) + RandomUtils.generateRandomInt(8) + ext;
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ObjectMetadata objectMetadata = new ObjectMetadata();
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objectMetadata.setContentType(getcontentType(ext));
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// System.out.println("开始上传--" + dtf2.format(LocalDateTime.now()));
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ossClient.putObject(bucketName, fileName, inputStream, objectMetadata);
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ossClient.shutdown();
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Date expiration = new Date(System.currentTimeMillis() + (long) 946080000 * 1000);
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String url = ossClient.generatePresignedUrl(bucketName, fileName, expiration).toString();
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// System.out.println("oss上传成功：" + url);
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// System.out.println("上传完成--" + dtf2.format(LocalDateTime.now()));
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return url;
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} catch (Exception e) {
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System.out.println("oss异常：" + e.getMessage());
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// e.printStackTrace();
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return this.uploadImages(inputStream, ext, times + 1);
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}
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} else {
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return "";
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}
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}
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@Override
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public String uploadVideo(MultipartFile file) {
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if (file == null) {
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return "上传视频为空";
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}
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String endpoint = ConstantPropertiesUtils.END_POINT;
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String accessKeyId = ConstantPropertiesUtils.ACCESS_KEY_ID;
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String accessKeySecret = ConstantPropertiesUtils.ACCESS_KEY_SECRET;
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String bucketName = ConstantPropertiesUtils.BUCKET_NAME;
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// 创建OSSClient实例
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OSS ossClient = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);
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// 上传文件流
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try {
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// 获取文件的名称
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String fileName = "sczf/" + file.getOriginalFilename();
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ObjectMetadata objectMetadata = new ObjectMetadata();
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objectMetadata.setContentType(getcontentType(fileName.substring(fileName.lastIndexOf("."))));
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// 调用oss的方法实现长传
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// 第一个参数 bucketName
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// 第二个参数 上传到oss的文件路径和文件名称
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ossClient.putObject(bucketName, fileName, new ByteArrayInputStream(file.getBytes()), objectMetadata);
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// 关闭OSSClient。
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ossClient.shutdown();
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// 把上传的文件路径返回 （手动拼接）
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// 这里设置图片有效时间 我设置了30年
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Date expiration = new Date(System.currentTimeMillis() + (long) 946080000 * 1000);
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String url = ossClient.generatePresignedUrl(bucketName, fileName, expiration).toString();
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return url;
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} catch (Exception e) {
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System.out.println("uploadImages上传视频失败：");
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// e.printStackTrace();
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return null;
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}
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}
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public static String getcontentType(String FilenameExtension) {
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if (FilenameExtension.equalsIgnoreCase(".mp4") || FilenameExtension.equalsIgnoreCase(".mov")) {
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return "video/mp4";
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}
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if (FilenameExtension.equalsIgnoreCase(".bmp")) {
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return "image/bmp";
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}
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if (FilenameExtension.equalsIgnoreCase(".gif")) {
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return "image/gif";
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}
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if (FilenameExtension.equalsIgnoreCase(".jpeg") ||
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FilenameExtension.equalsIgnoreCase(".jpg") ||
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FilenameExtension.equalsIgnoreCase(".png")) {
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return "image/jpg";
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}
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if (FilenameExtension.equalsIgnoreCase(".html")) {
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return "text/html";
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}
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if (FilenameExtension.equalsIgnoreCase(".txt")) {
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return "text/plain";
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}
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if (FilenameExtension.equalsIgnoreCase(".vsd")) {
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return "application/vnd.visio";
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}
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if (FilenameExtension.equalsIgnoreCase(".pptx") ||
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FilenameExtension.equalsIgnoreCase(".ppt")) {
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return "application/vnd.ms-powerpoint";
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}
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if (FilenameExtension.equalsIgnoreCase(".docx") ||
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FilenameExtension.equalsIgnoreCase(".doc")) {
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return "application/msword";
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}
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if (FilenameExtension.equalsIgnoreCase(".xml")) {
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return "text/xml";
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}
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return "image/jpg";
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}
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}
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