springboot整合阿里云oss上传的方法示例

网友投稿 365 2022-11-27


springboot整合阿里云oss上传的方法示例

OSS申请和配置

1. 注册登录

输入网址：https://aliyun.com/product/oss

如果没有账号点击免费注册，然后登录。

2.开通以及配置

点击立即开通

进入管理控制台

第一次使用会出现引导，按引导点击“我知道了”，然后点击创建Bucket。

如果没有存储包或流量包点击购买。

点击确定，返回主页面，出现该页面，点击我知道了

将EndPoint记录下来，方便后期添加到我们项目的配置文件中

创建 AccessKeyID 和 AccessKeySecret

点击创建Access key，第一次需要短信验证，验证成功后弹出

保留Access key 以及 AccessKeySecret 信息

springboot整合使用

1. 进入我们springboot的项目中，导入oss相关依赖

com.aliyun.oss

aliyun-sdk-oss

2.8.3

2. 再配置文件中添加相关信息

oss.aliyun.accessKeyId= #

oss.aliyun.accessKeySecret= #

oss.aliyun.bucketName= mutest-qcby-oss

oss.aliyun.endpoint= #

oss.aliyun.pubFlag= false

oss.aliyun.expiration= 100

oss.aliyun.sslNmae= #内网使用，不必须

3. 书写获取配置信息的java文件，建立properties包（导入依赖，否则无法识别这个包）

org.springframework.boot

spring-boot-configuration-processor

true

OssProerties.java

import com.mbyte.easy.oss.OssUtil;

import lombok.Data;

import org.springframework.boot.context.properties.ConfigurationProperties;

import org.springframework.boot.context.properties.EnableConfigurationProperties;

import org.springframework.context.annotation.PropertySource;

import org.springframework.stereotype.Component;

import javax.annotation.PostConstruct;

/**

* @ClassName: OssProerties

* @Description: 阿里云 对象云存储配置类

* @Author: zte

* @Date: 2019-02-14 09:37

* @Version 1.0

**/

@Data

@Component

@ConfigurationProperties(prefix = "oss.aliyun")

public class OssProerties {

private String accessKeyId;

private String accessKeySecret;

private String bucketName;

private String endpoint;

private String bucket;

private boolean pubFlag;

private String sslNmae;

@PostConstruct

public void init(){

//Oss工具类配置初始化

OssUtil.initConfig(this);

}

//过期时间

private int expiration;

public String getAccessKeyId() {

return accessKeyId;

}

public OssProerties setAccessKeyId(String accessKeyId) {

this.accessKeyId = accessKeyId;

return this;

}

public String getAccessKeySecret() {

return accessKeySecret;

}

public OssProerties setAccessKeySecret(String accessKeySecret) {

this.accessKeySecret = accessKeySecret;

return this;

}

public String getBucketName() {

return bucketName;

}

public OssProerties setBucketName(String bucketName) {

this.bucketName = bucketName;

return this;

}

public String getEndpoint() {

return endpoint;

}

public OssProerties setEndpoint(String endpoint) {

this.endpoint = endpoint;

return this;

}

public String getBucket() {

return bucket;

}

public OssProerties setBucket(String bucket) {

this.bucket = bucket;

return this;

}

public boolean isPubFlag() {

return pubFlag;

}

public void setPubFlag(boolean pubFlag) {

this.pubFlag = pubFlag;

}

public int getExpiration() {

return expiration;

}

public OssProerties setExpiration(int expiration) {

this.expiration = expiration;

return this;

}

@Override

public String toString() {

return "OssPro{" +

"accessKeyId='" + accessKeyId + '\'' +

", accessKeySecret='" + accessKeySecret + '\'' +

", bucketName='" + bucketName + '\'' +

", endpoint='" + endpoint + '\'' +

", bucket='" + bucket + '\'' +

", expiration=" + expiration +

'}';

}

}

4. 整合oss,书写相关java文件

1. 文件常量java文件 FileConstants.java

package com.mbyte.easy.oss;

import org.springframework.util.ClassUtils;

import java.io.File;

/**

* @ClassName: FileConstants

* @Description: 文件常量

* @Author: lxt

* @Date: 2019-02-19 09:59

* @Version 1.0

**/

public class FileConstants {

/**

* 文件存储临时文件夹

*/

public final static String TEMP_ROOT = "temp";

/**

* 下载暂存目录

*/

public final static String DOWNLOAD = TEMP_ROOT+ File.separator+"download";

/**

* 后缀名相关常量(包含【.】)

*/

public final static String SUFFIX_ZIP = ".zip";

/**

* png图片后缀

*/

public final static String SUFFIX_png = ".png";

/**

* 二维码暂存路径 eg：微信支付二维码

*/

public static final String QRCODE = "qrcode";

public static final String QRCODE_PATH = ClassUtils.getDefaultClassLoader().getResource("static").getPath()+File.separator+QRCODE;

/**

* 文件的后缀名

*/

public static final String FILE_TYPE_AVI = "avi";

public static final String FILE_TYPE_CSV = "csv";

public static final String FILE_TYPE_DOC = "doc";

public static final String FILE_TYPE_DOCX = "docx";

public static final String FILE_TYPE_MP3 = "mp3";

public static final String FILE_TYPE_PDF = "pdf";

public static final String FILE_TYPE_PPT = "ppt";

public static final String FILE_TYPE_PPTX = "pptx";

public static final String FILE_TYPE_RAR = "rar";

public static final String FILE_TYPE_TXT = "txt";

public static final String FILE_TYPE_XLS = "xls";

public static final String FILE_TYPE_ZIP = "zip";

/**

* 文件对应图片的oss路径

*/

public static final String FILE_TYPE_AVI_ROUTE = "https://hmett.oss-cn-beijing.aliyuncs.com/20191205092751242.U27Ajs.png?Expires=4731182871&OSSAccessKeyId=LTAI4FqUE3bJs9FK7Sj65JnM&Signature=0S4nIClHiI11Iw2SOnLoKuwpiDc%3D";

public static final String FILE_TYPE_CSV_ROUTE = "https://hmett.oss-cn-beijing.aliyuncs.com/20191205092859378.A0J8R6.png?Expires=4731182939&OSSAccessKeyId=LTAI4FqUE3bJs9FK7Sj65JnM&Signature=McS77A%2BMOkmSjBfZziIxLeR5QCM%3D";

public static final String FILE_TYPE_DOC_ROUTE = "https://hmett.oss-cn-beijing.aliyuncs.com/20191205092908602.QHFWCO.png?Expires=4731182949&OSSAccessKeyId=LTAI4FqUE3bJs9FK7Sj65JnM&Signature=%2Frhttp://9V%2FP8nmfYKVbANe2fl1qR%2FFwg%3D";

public static final String FILE_TYPE_DOCX_ROUTE = "https://hmett.oss-cn-beijing.aliyuncs.com/20191205092908602.QHFWCO.png?Expires=4731182949&OSSAccessKeyId=LTAI4FqUE3bJs9FK7Sj65JnM&Signature=%2Fr9V%2FP8nmfYKVbANe2fl1qR%2FFwg%3D";

public static final String FILE_TYPE_MP3_ROUTE = "https://hmett.oss-cn-beijing.aliyuncs.com/20191205092920411.L5CBAF.png?Expires=4731182960&OSSAccessKeyId=LTAI4FqUE3bJs9FK7Sj65JnM&Signature=wPz2ylPAg%2FpBqyIz4LztacVfRwo%3D";

public static final String FILE_TYPE_PDF_ROUTE = "https://hmett.oss-cn-beijing.aliyuncs.com/20191205092930146.CU0CAD.png?Expires=4731182970&OSSAccessKeyId=LTAI4FqUE3bJs9FK7Sj65JnM&Signature=Nwl6%2BkZmosARipe%2BoVJT3FdRLqM%3D";

public static final String FILE_TYPE_PPT_ROUTE = "https://hmett.oss-cn-beijing.aliyuncs.com/20191205092939365.XHOX9G.png?Expires=4731182979&OSSAccessKeyId=LTAI4FqUE3bJs9FK7Sj65JnM&Signature=3CDxl0W5ymVXe2XLnxLn1ewc1gU%3D";

public static final String FILE_TYPE_PPTX_ROUTE = "https://hmett.oss-cn-beijing.aliyuncs.com/20191205092939365.XHOX9G.png?Expires=4731182979&OSSAccessKeyId=LTAI4FqUE3bJs9FK7Sj65JnM&Signature=3CDxl0W5ymVXe2XLnxLn1ewc1gU%3D";

public static final String FILE_TYPE_RAR_ROUTE = "https://hmett.oss-cn-beijing.aliyuncs.com/20191205092949684.9OW7L9.png?Expires=4731182989&OSSAccessKeyId=LTAI4FqUE3bJs9FK7Sj65JnM&Signature=RCKarsekmPG3CXI5D6MLpJ4ocj4%3D";

public static final String FILE_TYPE_TXT_ROUTE = "https://hmett.oss-cn-beijing.aliyuncs.com/20191205092959887.TF1K0N.png?Expires=4731183000&OSSAccessKeyId=LTAI4FqUE3bJs9FK7Sj65JnM&Signature=9l44IQ0FZdQMcRq92PPOXlBKEFk%3D";

public static final String FILE_TYPE_XLS_ROUTE = "https://hmett.oss-cn-beijing.aliyuncs.com/20191205093007830.M6O08Z.png?Expires=4731183008&OSSAccessKeyId=LTAI4FqUE3bJs9FK7Sj65JnM&Signature=GeNmvgi7TGMq3uk9AG0%2BJRWRFY0%3D";

public static final String FILE_TYPE_ZIP_ROUTE = "https://hmett.oss-cn-beijing.aliyuncs.com/20191205093017998.Q39L45.png?Expires=4731183018&OSSAccessKeyId=LTAI4FqUE3bJs9FK7Sj65JnM&Signature=djzJ7rTgH8LvCeaMfWGXUAQIpJE%3D";

}

2. 文件操作工具类 OssFileUtils.java

import com.mbyte.easy.common.web.AjaxResult;

import com.mbyte.easy.oss.OssUtil;

import lombok.extern.slf4j.Slf4j;

import org.apache.commons.lang3.StringUtils;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

import org.springframework.web.multipart.MultipartFile;

import java.io.File;

import java.io.IOException;

import java.io.InputStream;

import java.net.URL;

import java.nio.file.Files;

import java.nio.file.Path;

import java.nio.file.Paths;

import java.nio.file.StandardCopyOption;

import java.util.*;

/**

* @ClassName: DesignFileUtils

* @Description: 文件操作工具类

* @Author: lxt

* @Date: 2019-02-15 14:50

* @Version 1.0

**/

@Slf4j

public class OssFileUtils {

/**

* @Title: uploadSingleFile

* @Description: 单个文件上传

* @Author: zte

* @param: file

* @Date: 2019-02-15 14:56

* @return: java.lang.String 成功返回 文件路径，失败返回null

* @throws:

*/

public static String uploadSingleFile(MultipartFile file){

if(file == null){

log.error("单文件上传失败，文件为空");

return null;

}

try {

return OssUtil.upload(OssUtil.generateKey(file.getOriginalFilename()),file.getBytes());

} catch (Exception e) {

log.error("单文件上传异常【"+file+"】",e);

}

return null;

}

/**

* @Title: uploadSingleFile

* @Description: 单个文件上传

* @Author: lxt

* @param: file

* @Date: 2019-02-15 14:56

* @return: java.lang.String 成功返回 文件路径，失败返回null

* @throws:

*/

public static String uploadSingleFile(File file){

if(file == null){

log.error("单文件上传失败，文件为空");

return null;

}

try {

return OssUtil.upload(OssUtil.generateKey(file.getName()),file);

} catch (Exception e) {

log.error("单文件上传异常【"+file+"】",e);

}

return null;

}

/**

* @Title: uploadMultipartFile

* @Description: 多文件文件上传

* @Author: zte

* @param: files

* @Date: 2019-02-18 13:08

* @return: java.util.List 成功返回 文件路径集合，失败返回null

* @throws:

*/

public static List uploadMultipartFile(List fileList){

List filePaths = new ArrayList<>();

Optional.ofNullable(fileList).ifPresent(fl->{

fl.stream().forEach(f->{

try {

filePaths.add(OssUtil.upload(OssUtil.generateKey(f.getOriginalFilename()),f.getBytes()));

} catch (IOException e) {

log.error("多文件上传异常【"+f+"】",e);

}

});

}

);

return filePaths;

}

/**

* @Title: downloadSingleFileByOss

* @Description: 下载阿里云文件到本地

* @Author: lxt

* @param: url 阿里云链接

* @param: filePath 下载目录

* @Date: 2019-02-18 13:13

* @return: java.io.File

* @throws:

*/

public static File downloadSingleFile(String url,String filePath){

try {

return OssUtil.download2File(url,filePath);

} catch (Exception e) {

log.error("单文件下载异常【"+url+"】",e);

}

return null;

}

/**

* @Title: downloadMultipartFileByOss

* @Description: 批量下载阿里云文件到本地

* @Author: zte

* @param: urlList 阿里云链接集合

* @param: dir 下载目录

* @Date: 2019-02-18 13:19

* @return: java.util.List

* @throws:

*/

public static List downloadMultipartFile(List urlList,String dir){

List files = new ArrayList<>();

Optional.ofNullable(urlList).ifPresent(fl->{

fl.stream().forEach(f->files.add(OssUtil.download2Dir(f,dir)));

}

);

return files;

}

/**

* @Title: downloadMultipartFileByOssWithZip

* @Description: 批量下载，打包成一个zip包

* @Author: zte

* @param: urlList

* @param: zipPath

* @Date: 2019-02-18 15:41

* @return: java.io.File

* @throws:

*/

// public static File downloadMultipartFileWithZip(List urlList,String zipName){

// try {

// //压缩路径不存在，先创建

// File zipDirFile = new File(FileConstants.DOWNLOAD);

// if(!zipDirFile.exists()){

// zipDirFile.mkdirs();

// }

// if(StringUtils.isNoneBlank(zipName) && !isFileBySuffix(zipName,FileConstants.SUFFIX_ZIP)){

// //文件名称存在 但后缀名不是zip

// zipName = zipName + FileConstants.SUFFIX_ZIP;

// }else{

// // 压缩包默认名称未6为随机字符串

// zipName = StringUtils.isBlank(zipName) ? Utility.getRandomStrByNum(6)+FileConstants.SUFFIX_ZIP : zipName;

// }

// // 批量下载文件到指定位置

// List files = downloadMultipartFile(urlList,FileConstants.DOWNLOAD);

// // 将文件打包

// File zipFile = ZipFileUtil.compressFiles2Zip(files,FileConstants.DOWNLOAD+File.separator+zipName);

// // 删除打包之前的文件

// files.stream().forEach(f->f.delete());

// return zipFile;

// }catch (Exception e){

// logger.error("批量下载文件异常",e);

// }

// return null;

// }

/**

* @Title: isFileBySuffix

* @Description: 通过后缀名判断是否是某种文件

* @Author: zte

* @param: fileName 文件名称

* @param: suffix 后缀名

* @Date: 2019-02-19 10:09

* @return: boolean

* @throws:

*/

public static boolean isFileBySuffix(String fileName,String suffix){

if(StringUtils.isNoneBlank(fileName) && StringUtils.isNoneBlank(suffix)){

return fileName.endsWith(suffix.toLowerCase()) || fileName.endsWith(suffix.toUpperCase());

}

return false;

}

/**

* @Title: downloadByUrlPath

* @Description: 下载网络文件

* @Author: lxt

* @param: urlPath

* @param: saveDir

* @param: fileName

* @Date: 2019-02-23 16:26

* @return: java.io.File

* @throws:

*/

public static File downloadByUrlPath(String urlPath,String saveDir,String fileName){

if(StringUtils.isBlank(urlPath)){

log.error("下载网络文件失败，链接为空");

return null;

}

try (InputStream ins = new URL(urlPath).openStream()) {

Path target = Paths.get(saveDir, fileName);

Files.createDirectories(target.getParent());

Files.copy(ins, target, StandardCopyOption.REPLACE_EXISTING);

return new File(saveDir+File.separator+fileName);

} catch (IOException e) {

log.error("下载网络文件异常",e);

}

return null;

}

// /**

// * @Description: 上传视频文件

// * @param file

// * @param type

// * @return: com.mbyte.easy.common.web.AjaxResult

// * @Author: zte

// * @Date: 2020/3/23 17:48

// */

// public static AjaxResult uploadVideoFile(MultipartFile file,String type){

// if(file!=null){

// File partFile = null;

// File compressFile = null;

// try {

// Map result = new HashMap<>();

// // 压缩视频

// if(VideoDetailConstants.VIDEO_W_FLAG.equals(type)){

// compressFile = FfmpegUtil.INSTANCE.compressFile2W(file);

// }

// if(VideoDetailConstants.VIDEO_H_FLAG.equals(type)){

// compressFile = FfmpegUtil.INSTANCE.compressFile2H(file);

// }

// String fileUrlPath = null;

// if(compressFile != null){

// fileUrlPath = OssFileUtils.uploadSingleFile(compressFile);

// // 剪辑视频

// partFile = FfmpegUtil.INSTANCE.getPartVideo(compressFile);

// }else{

// fileUrlPath = OssFileUtils.uploadSingleFile(file);

// // 剪辑视频

// partFile = FfmpegUtil.INSTANCE.getPartVideo(file);

// }

// // 上传视频本身到oss

// result.put("video",fileUrlPath);

// // 上传试看部分到oss

// result.put("videoPart", OssFileUtils.uploadSingleFile(partFile));

// return AjaxResult.success(result);

// }catch (Exception e){

// log.error("上传视频异常",e);

// }finally {

// if(partFile != null && partFile.exists()){

// partFile.delete();

// }

// if(compressFile != null && compressFile.exists()){

// compressFile.delete();

// }

// }

// }

// return AjaxResult.error();

// }

}

3. 阿里云 对象云存储工具类 OssUtil.java

import com.aliyun.oss.OSS;

import com.aliyun.oss.OSSClient;

import com.aliyun.oss.model.GetObjectRequest;

import com.aliyun.oss.model.OSSObject;

import com.mbyte.easy.properties.OssProerties;

import com.mbyte.easy.util.Utility;

import lombok.extern.slf4j.Slf4j;

import org.apache.commons.io.FilenameUtils;

import org.apache.commons.lang3.StringUtils;

import org.apache.commons.lang3.time.DateFormatUtils;

import org.apache.commons.lang3.time.DateUtils;

import org.apache.logging.log4j.util.Strings;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.web.multipart.MultipartFile;

import javax.servlet.http.HttpServletResponse;

import java.io.*;

import java.net.URLEncoder;

import java.util.Date;

import java.util.HashMap;

import java.util.Map;

/**

* @ClassName: OSSUtill

* @Description: 阿里云 对象云存储工具类

* @Author: zte

* @Date: 2019-02-13 14:38

* @Version 1.0

**/

@Slf4j

public class OssUtil {

/**

* 注入配置

*/

private static OssProerties ossProerties;

/**

* @Title: initConfig

* @Description: 配置初始化

* @Author: lxt

* @param: ossProertiesInit

* @Date: 2019-02-14 09:25

* @throws:

*/

public static void initConfig(OssProerties ossProertiesInit){

ossProerties = ossProertiesInit;

}

/**

* @Title: generateKey

* @Description: 生成oss对象名称

* @Author: lxt

* @param: fileName

* @Date: 2019-02-13 15:21

* @return: java.lang.String

* @throws:

*/

public static String generateKey(String fileName) {

//对象名称格式：yyyymm.name.6位随机字符.ext

return new StringBuilder(DateFormatUtils.format(new Date(), "yyyyMMddHHmmssSSS"))

.append(".").append(Utility.getRandomStrByNum(6))

.append(".").append(FilenameUtils.getExtension(fileName))

.toString();

}

public static String getHttpsAddress(String url){

return url.replaceAll("http://"+ossProerties.getBucket(),ossProerties.getSslNmae());

}

/**

* @Title: upload

* @Description: 上传方法

* @Author: zte

* @param: key 对象名称

* @param: file待上传文件

* @Date: 2019-02-13 15:35

* @return: java.lang.String

* @throws:

*/

public static String upload(String key,File file) {

if(file == null || !file.exists()){

log.error("阿里云上传文件失败【"+file+"】不存在");

return null;

}

log.info("阿里云上传文件开始：【"+file+"】");

OSS ossClient = new OSSClient(ossProerties.getEndpoint(), ossProerties.getAccessKeyId(), ossProerties.getAccessKeySecret());

try {

ossClient.putObject(ossProerties.getBucketName(),key,file);

//设置url过期时间

Date expirationDate = DateUtils.addYears(new Date(), ossProerties.getExpiration());

String url = ossClient.generatePresignedUrl(ossProerties.getBucketName(), key, expirationDate).toString();

log.info("阿里云上传文件结束：【"+file+"】=>【"+url+"】");

return getHttpsAddress(url);

}catch(Exception e) {

log.error("阿里云上传文件异常【"+file+"】",e);

}finally {

ossClient.shutdown();

}

return null;

}

/**

* @Title: upload

* @Description: 上传方法

* @Author: zte

* @param: key 对象名称

* @param: file待上传文件

* @Date: 2019-02-13 15:35

* @return: java.lang.String

* @throws:

*/

public static String upload(String key,byte[] bytes) {

if(bytes == null || StringUtils.isBlank(key)){

log.error("阿里云上传文件不存在:【"+key+"】");

return null;

}

log.info("阿里云上传文件开始:【"+key+"】");

OSS ossClient = new OSSClient(ossProerties.getEndpoint(), ossProerties.getAccessKeyId(), ossProerties.getAccessKeySecret());

try {

ossClient.putObject(ossProerties.getBucketName(),key, new ByteArrayInputStream(bytes));

//设置url过期时间

Date expirationDate = DateUtils.addYears(new Date(), 100);

String url = ossClient.generatePresignedUrl(ossProerties.getBucketName(), key, expirationDate).toString();

log.info("阿里云上传文件结束：【"+key+"】=>【"+url+"】");

return getHttpsAddress(url);

}catch(Exception e) {

log.error("阿里云上传文件异常:【"+key+"】",e);

}finally {

ossClient.shutdown();

}

return null;

}

/**

* @Title: uploadWithObjectName

* @Description: 上传方法，返回对象名称和 url

* @Author: zte

* @param: file待上传文件

* @Date: 2019-02-13 15:35

* @return: java.lang.Map

* @throws:

*/

public static Map uploadWithObjectName(File file) {

if(file == null || !file.exists()){

log.error("阿里云上传文件失败【"+file+"】不存在");

return null;

}

Map map = new HashMap<>();

log.info("阿里云上传文件开始：【"+file+"】");

OSS ossClient = new OSSClient(ossProerties.getEndpoint(), ossProerties.getAccessKeyId(), ossProerties.getAccessKeySecret());

try {

String key = generateKey(file.getName());

ossClient.putObject(ossProerties.getBucketName(),key, new FileInputStream(file));

//设置url过期时间

Date expirationDate = DateUtils.addYears(new Date(), ossProerties.getExpiration());

String url = ossClient.generatePresignedUrl(ossProerties.getBucketName(), key, expirationDate).toString();

log.info("阿里云上传文件结束：【"+file+"】=>【"+url+"】");

map.put("objectName",key);

map.put("url",url);

return map;

}catch(Exception e) {

log.error("阿里云上传文件异常【"+file+"】",e);

}finally {

ossClient.shutdown();

}

return null;

}

/**

* @Title: delete

* @Description: 删除方法

* @Author: zte

* @param: url 待删除对象url

* @Date: 2019-02-13 15:54

* @throws:

*/

public static void delete(String url) {

if(StringUtils.isBlank(url)){

log.error("阿里云删除文件失败，对象url为空");

return;

}

log.info("阿里云删除文件开始：【"+url+"】");

if(url.contains(ossProerties.getBucket())){

//根据url获取对象名称

url = getObjectNameByUrl(url);

}

OSS ossClient = new OSSClient(ossProerties.getEndpoint(), ossProerties.getAccessKeyId(), ossProerties.getAccessKeySecret());

try {

// 删除文件

ossClient.deleteObject(ossProerties.getBucketName(), url);

log.info("阿里云删除文件结束：【"+url+"】");

}catch(Exception e) {

log.error("阿里云删除文件异常【"+url+"】",e);

}finally {

ossClient.shutdown();

}

}

/**

* @Title: download

* @Description: 下载文件到本地文件

* @Author: zte

* @param: url 待下载对象url

* @param: filePath 下载到本地文件

* @Date: 2019-02-13 15:56

* @return: java.io.File

* @throws:

*/

public static File download2File(String url, String filePath) {

log.info("阿里云下载文件开始：【"+url+"】");

if(url.contains(ossProerties.getBucket())){

//根据url获取对象名称

url = getObjectNameByUrl(url);

}

OSS ossClient = new OSSClient(ossProerties.getEndpoint(), ossProerties.getAccessKeyId(), ossProerties.getAccessKeySecret());

try {

File file = new File(filePath);

// 下载OSS文件到本地文件。如果指定的本地文件存在会覆盖，不存在则新建。

ossClient.getObject(new GetObjectRequest(ossProerties.getBucketName(), url),file);

log.info("阿里云下载文件结束：【"+url+"】");

return file;

}catch(Exception e) {

log.error("阿里云下载文件异常【"+url+"】",e);

}finally {

ossClient.shutdown();

}

return null;

}

/**

* @Title: download

* @Description: 通过流下载文件

* @Author: zte

* @param: url 待下载对象url

* @param: filePath 下载到本地文件

* @Date: 2019-02-13 15:56

* @return: java.io.File

* @throws:

*/

public static void download2FileByStream(String url, String fileName, HttpServletResponse response) {

BufferedInputStream inputStream = null;

OSS ossClient = new OSSClient(ossProerties.getEndpoint(), ossProerties.getAccessKeyId(), ossProerties.getAccessKeySecret());

try(

BufferedOutputStream outputStream = new BufferedOutputStream(response.getOutputStream());){

// 配置文件下载

response.setHeader("content-type", "application/octet-stream");

response.szkLONetContentType("application/octet-stream");

if(url.contains(ossProerties.getBucket())){

//根据url获取对象名称

url = getObjectNameByUrl(url);

}

// 下载文件能正常显示中文

response.setHeader("Content-Disposition", "attachment;filename=" + URLEncoder.encode(StringUtils.isBlank(fileName) ? url : fileName, "UTF-8"));

log.info("阿里云下载文件开始：【"+url+"】");

// 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(ossProerties.getBucketName(), url);

inputStream = new BufferedInputStream(ossObject.getObjectContent());

byte[] buff = new byte[2048];

int bytesRead;

while (-1 != (bytesRead = inputStream.read(buff, 0, buff.length))){

outputStream.write(buff, 0, bytesRead);

}

outputStream.flush();

} catch (Exception e) {

log.error("下载异常！", e);

}finally {

log.info("阿里云下载文件结束：【"+url+"】");

ossClient.shutdown();

if(inputStream != null){

try {

inputStream.close();

} catch (IOException e) {

e.printStackTrace();

}

}

}

}

/**

* @Title: download

* @Description: 下载文件到指定目录,文件名称为阿里云文件对象名称

* @Author: zte

* @param: url 待下载对象url

* @param: dir 下载到本地目录

* @Date: 2019-02-13 15:56

* @return: java.io.File

* @throws:

*/

public static File download2Dir(String url, String dir) {

log.info("阿里云下载文件开始：【"+url+"】");

if(url.contains(ossProerties.getBucket())){

//根据url获取对象名称

url = getObjectNameByUrl(url);

}

OSS ossClient = new OSSClient(ossProerties.getEndpoint(), ossProerties.getAccessKeyId(), ossProerties.getAccessKeySecret());

try {

File file = new File(dir+File.separator+url);

// 下载OSS文件到本地文件。如果指定的本地文件存在会覆盖，不存在则新建。

ossClient.getObject(new GetObjectRequest(ossProerties.getBucketName(), url),file);

log.info("阿里云下载文件结束：【"+url+"】");

return file;

}catch(Exception e) {

log.error("阿里云下载文件异常【"+url+"】",e);

}finally {

ossClient.shutdown();

}

return null;

}

/*

* @Title: getObjectNameByUrl

* @Description: 通过url获取对象名称

* @Author: lxt

* @param: url

* @Date: 2019-02-13 16:20

* @return: java.lang.String

* @throws:

*/

public static String getObjectNameByUrl(String url){

if(StringUtils.isBlank(url)){

return null;

}

return url.substring(url.indexOf(ossProerties.getBucket())+ossProerties.getBucket().length()+1,url.indexOf("?"));

}

/**

* @author: zte

* @description: 重载方法,根据file生成文件名称并且上传文件到阿里云

* @date: 2019/9/21 10:56

* @param file : MultipartFile文件

* @see #upload(String,byte[])

* @return 数据库中要存入的路径

*/

public static String upload(MultipartFile file) throws IOException {

if (file == null || Strings.isEmpty(file.getOriginalFilename())){

return null;

}

return upload(generateKey(file.getOriginalFilename()), file.getBytes());

}

/**

* 调用浏览器下载

* @param url

* @param response

*/

public static void download2FileByStream(String url,HttpServletResponse response,String name) {

File file = new File(url);

String fileName=file.getName();

fileName= StringUtils.substringBefore(fileName,"?");

String fileLast=StringUtils.substringAfterLast(fileName,".");

fileName=name+"."+fileLast;

BufferedInputStream inputStream = null;

OSS ossClient = new OSSClient(ossProerties.getEndpoint(), ossProerties.getAccessKeyId(), ossProerties.getAccessKeySecret());

try(

BufferedOutputStream outputStream = new BufferedOutputStream(response.getOutputStream());){

// 配置文件下载

response.setHeader("content-type", "application/octet-stream");

response.setContentType("application/octet-stream");

if(url.contains(ossProerties.getBucket())){

//根据url获取对象名称

url = getObjectNameByUrl(url);

}

// 下载文件能正常显示中文

response.setHeader("Content-Disposition", "attachment;filename=" + URLEncoder.encode(StringUtils.isBlank(fileName) ? url : fileName, "UTF-8"));

log.info("阿里云下载文件开始：【"+url+"】");

// 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(ossProerties.getBucketName(), url);

inputStream = new BufferedInputStream(ossObject.getObjectContent());

byte[] buff = new byte[2048];

int bytesRead;

while (-1 != (bytesRead = inputStream.read(buff, 0, buff.length))){

outputStream.write(buff, 0, bytesRead);

}

outputStream.flush();

} catch (Exception e) {

log.error("下载异常！", e);

}finally {

log.info("阿里云下载文件结束：【"+url+"】");

ossClient.shutdown();

if(inputStream != null){

try {

inputStream.close();

} catch (IOException e) {

e.printStackTrace();

}

}

}

}

}

5. controller 调用样例

我这里使用的是我自己项目封装的 AjaxResult工具类，大家可以使用Map,通过这个方法呢，我们就可以使用oss将图片保存，并且返回前端图片的保存地址(可以访问)。

/**

* 上传

* @param fileupload

* @return

*/

@PostMapping("uploadImg")

@ResponseBody

public AjaxResult uploadImg(MultipartFile fileupload){

if(fileupload != null){

String path = OssFileUtils.uploadSingleFile(fileupload);

return AjaxResult.success(path);

}else {

return AjaxResult.error();

}

}


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