4dkankan-smart-site/src/main/java/com/fdkankan/site/common/util/UploadToOssUtil.java

package com.fdkankan.site.common.util;

import cn.hutool.core.collection.CollUtil;
import com.aliyun.oss.OSSClient;
import com.aliyun.oss.model.*;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;

import java.io.*;
import java.util.ArrayList;
import java.util.List;
import java.util.stream.Collectors;

@Slf4j
@Component
public class UploadToOssUtil {


	@Value("${oss.point:http://oss-cn-shenzhen-internal.aliyuncs.com}")
	private String point;

	@Value("${oss.key:LTAIUrvuHqj8pvry}")
	private String key;

	@Value("${oss.secrey:JLOVl0k8Ke0aaM8nLMMiUAZ3EiiqI4}")
	private String secrey;

	@Value("${oss.bucket:4dkankan}")
	private String bucket;




	/**
	 * 获取文件内容-阿里云
	 * @param objectName
	 * @return
	 */
	public boolean existKey(String objectName){
		//创建oss客户端
		OSSClient ossClient = new OSSClient(point, key, secrey);
		// 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。
		try{
			boolean exist = ossClient.doesObjectExist(bucket, objectName);
			return exist;
		}catch (Exception e){
			log.error("s4判断是否存在key异常,key=" + objectName, e);
		}finally {
			if(ossClient != null){
				ossClient.shutdown();
			}
		}
		return false;
	}

	/**
	 * 从阿里云oss下载文件到本地
	 * @param objectName 云端文件k地址
	 * @param localPath 本地文件地址
	 * @return
	 */
	public boolean downFormAli(String objectName, String localPath){
		OSSClient ossClient = new OSSClient(point, key, secrey);
		try {
			GetObjectRequest request  = new GetObjectRequest(bucket,objectName);
			File file = new File(localPath);
			if(!file.getParentFile().exists()){
				file.getParentFile().mkdirs();
				file = new File(localPath);
			}
			ossClient.getObject(request, file);
			return true;
		}catch (Exception e){
			log.error("阿里云oss文件下载失败，key=" + objectName, e);
		}finally {
			if(ossClient != null){
				ossClient.shutdown();
			}
		}
		return false;
	}


	public  void uploadOss(String filePath, String key1){
		OSSClient ossClient = new OSSClient(point, key, secrey);
		try {
			log.info("upload-to-oss:file-path:{},oss-path:{}",filePath,key1);
			File file = new File(filePath);
			if (!file.exists()) {
				log.info("upload-to-oss:file-path:{},oss-path:{},filePath不存在！",filePath,key1);
				return;
			}
			ObjectMetadata metadata = new ObjectMetadata();
			ossClient.putObject(bucket, key1, new File(filePath), metadata);
		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			ossClient.shutdown();
		}
	}
	public void delete(String objectName){
		OSSClient ossClient = new OSSClient(point, key, secrey);
		try {
			ossClient.deleteObject(bucket, objectName);
		} catch (Exception e) {
			log.error("OSS删除文件失败,key=" + objectName);
		}finally {
			if(ossClient != null){
				ossClient.shutdown();
			}
		}
	}

	/**
	 * 获得文件列表-阿里云
	 * @return
	 */
	public List<String> listKeysFromAli(String sourcePath) {
		List<String> keyList = new ArrayList<>();
		OSSClient ossClient = new OSSClient(point, key, secrey);
		try {
			boolean flag = true;
			String nextMaker = null;
			ListObjectsRequest listObjectsRequest = new ListObjectsRequest(this.bucket);
			//指定下一级文件
			listObjectsRequest.setPrefix(sourcePath);
			//设置分页的页容量
			listObjectsRequest.setMaxKeys(200);
			do
			{
				//获取下一页的起始点，它的下一项
				listObjectsRequest.setMarker(nextMaker);
				ObjectListing objectListing = ossClient.listObjects(listObjectsRequest);
				List<OSSObjectSummary> objectSummaries = objectListing.getObjectSummaries();
				List<String> collect = objectSummaries.stream().map(summary -> {
					return summary.getKey();
				}).collect(Collectors.toList());
				if(CollUtil.isNotEmpty(collect)){
					keyList.addAll(collect);
				}
				nextMaker = objectListing.getNextMarker();
				//全部执行完后，为false
				flag = objectListing.isTruncated();
			} while (flag);
		}catch (Exception e){
			log.error("获取文件列表失败，path="+sourcePath, e);
		}finally {
			if(ossClient != null){
				ossClient.shutdown();
			}
		}


		ossClient.shutdown();

		return keyList;
	}

	/**
	 * 获取文件内容-阿里云
	 * @param bucketName
	 * @param objectName
	 * @return
	 */
	public String getObjectContent(String bucketName, String objectName){
		//创建oss客户端
		OSSClient ossClient = new OSSClient(point, key, secrey);
		InputStream objectContent = null;
		StringBuilder contentJson = new StringBuilder();
		try {
			// 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(bucketName, objectName);
			objectContent = ossObject.getObjectContent();
			try(BufferedReader reader = new BufferedReader(new InputStreamReader(objectContent))){
				while (true) {
					String line = reader.readLine();
					if (line == null) break;
					contentJson.append(line);
				}
			} catch (IOException e) {
				log.error("读取scene.json文件流失败", e);
			}
		}catch (Exception e){
			log.error("s3获取文件内容失败,key="+objectName, e);
		}finally {
			if(ossClient != null){
				ossClient.shutdown();
			}
		}

		return contentJson.toString();
	}

	public  void uploadFileOss(File file) {
		if(file.isFile()){
			String ossPath = file.getPath();
			ossPath = ossPath.replace("/mnt/","");
			ossPath =  ossPath.replace("\\","/");
			this.uploadOss(file.getPath(),ossPath);
		}else {
			File[] files = file.listFiles();
			for (File file1 : files) {
				uploadFileOss(file1);
			}
		}
	}
}