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Java将文件上传到云服务器

前言

今天总结了一个云上传的小demo特地来跟大家分享下。

这个demo可以将一些文件上传到云服务器。我们来看下吧。

正文

我这里使用了阿里云、亚马逊S3和微软Azure这三种云上传做的demo。

要使用云上传,我们需要引入相关jar包,如下:

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<!--阿里云OSS-->
<dependency>
<groupId>com.aliyun.oss</groupId>
<artifactId>aliyun-sdk-oss</artifactId>
<version>2.2.3</version>
</dependency>
<!--微软Azure-->
<dependency>
<groupId>com.microsoft.azure</groupId>
<artifactId>azure-storage</artifactId>
<version>7.0.0</version>
</dependency>
<!--亚马逊S3-->
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>aws-java-sdk</artifactId>
<version>1.8.9.1</version>
</dependency>
<!-- 腾讯云cos -->
<dependency>
<groupId>com.qcloud</groupId>
<artifactId>cos_api</artifactId>
<version>5.5.3</version>
</dependency>

PS:如果只使用一种云上传方式,引入对应的jar包即可,不必全部引入。

我们可以提供一个通用的上传接口upload,而具体的上传逻辑让各个实现类去实现。

同时我们暴露公共方法出来供上传使用。

上传的文件有可能是本地文件,也有可能是前端传过来的Base64图片字符串,也有可能是MultipartFile等。

我们提供一个抽象的上传方法,大致如下:

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public abstract class UploadAbstractUtil {

public static final Logger logger = LoggerFactory.getLogger(UploadAbstractUtil.class);

/**
* 文件缓存路径
*/
private String basedir;

public UploadAbstractUtil(String basedir) {
this.basedir = basedir;
}

/**
* 上传文件到云
* @param tempFile
* @param realName
* @return
*/
protected abstract String upload(File tempFile, String realName);

/**
* 上传文件到云
* @param file
* @return
*/
abstract String upload(MultipartFile file);

/**
* 上传文件到云
* @param bytes
* @param contentType
* @return
*/
protected abstract String upload(byte[] bytes,String contentType);

/**
* 尝试初始化客户端
*/
protected abstract void initClient();

/**
* 生成一个唯一的上传文件名
* @param file
* @return
*/
protected String generateUploadFileName(MultipartFile file){
String name = file.getOriginalFilename();
String ext = name.substring(name.lastIndexOf("."));
String uuid = UUID.randomUUID().toString();
// 生成唯一的key
return uuid + ext;
}

/**
* base64转为文件后在进行上传
* @param base64Str
* @return
*/
public String base64UploadUseTempFile(String base64Str){
String realName = UUID.randomUUID().toString() + ".jpg";
File file = new File(basedir + "/" + realName);

if (!file.exists()) {
try {
file.createNewFile();
}catch (IOException e){
logger.error("文件上传,尝试创建文件时失败!!!",e);
throw new RuntimeException("文件上传失败!!!");
}
}

boolean flag = Base64Utils.Base64ToImage(base64Str, file.getPath());
if(!flag){
throw new RuntimeException("base64转换为文件时发生错误!!!");
}
String url;
try {
long startTime = System.currentTimeMillis();
url = upload(file, realName);
logger.info("tempFile---上传服务耗时------time:[{}ms]", System.currentTimeMillis()-startTime);
} catch (Exception e) {
logger.error("文件上传,上传文件时发生异常!!!",e);
throw new RuntimeException("文件上传失败!");
}
if (file.exists()) {
file.delete();
}
return url;
}

/**
* 通用文件上传
* @param filePath 文件路径
* @return
*/
public String fileUpload(String filePath){
if(StringUtils.isBlank(filePath)){
throw new RuntimeException("请输入正确的文件路径!");
}
File file = new File(filePath);
if(!file.exists()){
throw new RuntimeException("请输入正确的文件路径!");
}
int position = filePath.lastIndexOf(".");
String fileSuffix = "";
if(position > 0){
fileSuffix = filePath.substring(position);
}
//上传到云上的文件名
String realName = UUID.randomUUID().toString() + fileSuffix;
String url;
try {
long startTime = System.currentTimeMillis();
url = upload(file, realName);
logger.info("filePath---上传服务耗时------time:[{}ms]", System.currentTimeMillis()-startTime);
} catch (Exception e) {
logger.error("文件上传,上传文件时发生异常!!!",e);
throw new RuntimeException("文件上传失败!");
}
return url;
}


/**
* 使用流来进行文件上传
* @param base64Str
* @return
*/
public String base64UploadUseInputStream(String base64Str){
byte[] bytes = Base64Utils.Base64ToByte(base64Str);
String url;
try {
long startTime = System.currentTimeMillis();
url = upload(bytes,"image/jpeg");
logger.info("Stream---上传服务耗时------time:[{}ms]", System.currentTimeMillis()-startTime);
} catch (Exception e) {
logger.error("文件上传,上传文件时发生异常!!!",e);
throw new RuntimeException("文件上传失败!");
}
return url;
}

}

PS: 这个类看着比较多……其实都是对文件进行处理,生成上传文件名,然后交给上传方法,开始写的时候代码较少,在学习优化的过程中不断添加新功能,导致了该结果。

上面的上传抽象类大致逻辑如下:

针对图片文件:

  • 如果在服务器上的,可以直接获取到文件后进行上传。(fileUpload方法)
  • 如果APP端传过来的Base64编码的图片文件,可以把它生成临时文件,然后进行上传,也可以直接把Base64转换为流后进行上传。(base64UploadUseTempFile方法和base64UploadUseInputStream方法)
  • 如果APP端传过来MultipartFile文件,直接将其进行转换并上传。(upload(MultipartFile file)方法)

对于每种云上传,各个实现类具体如下:

阿里云OSS

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public class AliOssUploadUtil extends UploadAbstractUtil{

public static final Logger logger = LoggerFactory.getLogger(AliOssUploadUtil.class);
/**
* 阿里云accessKey
*/
private String aliyunaccessKey;
/**
* 阿里云secretKey
*/
private String aliyunsecretKey;
/**
* 阿里云endpoint
*/
private String aliyunendpoint;
/**
* 阿里云endpointexternal
*/
private String aliyunendpointexternal;
/**
* 阿里云bucket
*/
private String aliyunbucket;

/**
* ossClient
*/
private OSSClient ossClient;

/**
* 构造器
* @param basedir
* @param aliyunaccessKey
* @param aliyunsecretKey
* @param aliyunendpoint
* @param aliyunendpointexternal
* @param aliyunbucket
*/
public AliOssUploadUtil(String basedir, String aliyunaccessKey, String aliyunsecretKey, String aliyunendpoint, String aliyunendpointexternal, String aliyunbucket) {
super(basedir);
this.aliyunaccessKey = aliyunaccessKey;
this.aliyunsecretKey = aliyunsecretKey;
this.aliyunendpoint = aliyunendpoint;
this.aliyunendpointexternal = aliyunendpointexternal;
this.aliyunbucket = aliyunbucket;
}

/**
* 阿里云文件上传
* @param tempFile
* @param realName
* @return
*/
@Override
protected String upload(File tempFile,String realName){
initClient();
ossClient.putObject(aliyunbucket, realName, tempFile);
URL url = ossClient.generatePresignedUrl(aliyunbucket, realName, new Date(System.currentTimeMillis() + 3600L * 1000 * 24 * 365 * 100));
String urlString = String.valueOf(url).split("\\?")[0];
logger.info("阿里云OSS上传服务------图片内网url:[{}]", urlString);
urlString = urlString.replaceAll(aliyunendpoint, aliyunendpointexternal);
logger.info("阿里云OSS上传服务------图片外网url:[{}]", urlString);
return urlString;
}

/**
* 阿里云文件上传
* @param file
* @return
*/
@Override
String upload(MultipartFile file) {
initClient();
String key = generateUploadFileName(file);
try (InputStream is = new ByteArrayInputStream(file.getBytes())) {
ObjectMetadata metadata = new ObjectMetadata();
metadata.setContentEncoding(StandardCharsets.UTF_8.name());
metadata.setContentLength(file.getSize());
metadata.setContentType(file.getContentType());
// 上传
ossClient.putObject(aliyunbucket,key, is, metadata);
URL url = ossClient.generatePresignedUrl(aliyunbucket, key, new Date(System.currentTimeMillis() + 3600L * 1000 * 24 * 365 * 100));
String urlString = String.valueOf(url).split("\\?")[0];
logger.info("阿里云OSS上传服务------图片内网url:[{}]", urlString);
urlString = urlString.replaceAll(aliyunendpoint, aliyunendpointexternal);
logger.info("阿里云OSS上传服务------图片外网url:[{}]", urlString);
return urlString;
}catch (IOException e){
logger.error("使用阿里云OSS上传文件出现异常",e);
throw new RuntimeException(e);
}
}

/**
* 尝试初始化client
*/
@Override
protected void initClient() {
if(ossClient == null){
ossClient = new OSSClient(aliyunendpoint, aliyunaccessKey, aliyunsecretKey);
}
}

@Override
protected String upload(byte[] bytes, String contentType) {
initClient();
String realName = UUID.randomUUID().toString() + ".jpg";
try (InputStream is = new ByteArrayInputStream(bytes)) {
ObjectMetadata metadata = new ObjectMetadata();
metadata.setContentEncoding(StandardCharsets.UTF_8.name());
metadata.setContentLength(is.available());
metadata.setContentType(contentType);
// 上传
ossClient.putObject(aliyunbucket,realName, is, metadata);
URL url = ossClient.generatePresignedUrl(aliyunbucket, realName, new Date(System.currentTimeMillis() + 3600L * 1000 * 24 * 365 * 100));
String urlString = String.valueOf(url).split("\\?")[0];
logger.info("阿里云OSS上传服务------图片内网url:[{}]", urlString);
urlString = urlString.replaceAll(aliyunendpoint, aliyunendpointexternal);
logger.info("阿里云OSS上传服务------图片外网url:[{}]", urlString);
return urlString;
}catch (IOException e){
logger.error("使用阿里云OSS上传文件出现异常",e);
throw new RuntimeException(e);
}
}

/**
* shutdown Client
*/
public void shutdown(){
ossClient.shutdown();
}
}

亚马逊S3

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public class AmazonS3UploadUtil extends UploadAbstractUtil{
/**
* S3 accessKey
*/
private String s3accessKey;
/**
* S3 secretKey
*/
private String s3secretKey;
/**
* S3 endpoint
*/
private String s3endpoint;
/**
* S3 bucket
*/
private String s3bucket;

/**
* 协议
*/
private static Protocol protocol = Protocol.HTTP;

/**
* 亚马逊s3 client
*/
private AmazonS3 client;

/**
* 构造器
* @param basedir
* @param s3accessKey
* @param s3secretKey
* @param s3endpoint
* @param s3bucket
*/
public AmazonS3UploadUtil(String basedir, String s3accessKey, String s3secretKey, String s3endpoint, String s3bucket) {
super(basedir);
this.s3accessKey = s3accessKey;
this.s3secretKey = s3secretKey;
this.s3endpoint = s3endpoint;
this.s3bucket = s3bucket;
}

/**
* 上传文件到 Amazon S3
* @param tempFile
* @param realName
* @return
*/
@Override
protected String upload(File tempFile, String realName){
try {
initClient();
client.setEndpoint(s3endpoint);
client.setS3ClientOptions(new S3ClientOptions().withPathStyleAccess(true));
client.putObject(new PutObjectRequest(s3bucket, realName, tempFile)
.withCannedAcl(CannedAccessControlList.AuthenticatedRead));
String imageUrl = "http://" + s3endpoint + "/" + s3bucket + "/" + realName;
logger.info("亚马逊S3上传服务------图片url:[{}]", imageUrl);
return imageUrl;
} catch (AmazonClientException e) {
logger.error("使用亚马逊S3上传文件出现异常",e);
throw new RuntimeException(e);
}
}

/**
* 上传文件到S3
* @param file
* @return
*/
@Override
String upload(MultipartFile file) {
initClient();
String key = generateUploadFileName(file);
try (InputStream is = new ByteArrayInputStream(file.getBytes())){
ObjectMetadata metadata = new ObjectMetadata();
metadata.setContentEncoding(StandardCharsets.UTF_8.name());
metadata.setContentLength(file.getSize());
metadata.setContentType(file.getContentType());
PutObjectRequest mall = new PutObjectRequest(s3bucket, key, is, metadata)
.withCannedAcl(CannedAccessControlList.AuthenticatedRead);
// 上传
client.putObject(mall);
return "http://" + s3endpoint + "/" + s3bucket + "/" + key;
}catch (IOException e){
logger.error("使用亚马逊S3上传文件出现异常",e);
throw new RuntimeException(e);
}
}

/**
* 尝试初始化S3Client
*/
@Override
protected void initClient() {
if(client == null){
AWSCredentials credential = new BasicAWSCredentials(s3accessKey, s3secretKey);
ClientConfiguration clientConfig = new ClientConfiguration();
clientConfig.setProtocol(protocol);
client = new AmazonS3Client(credential, clientConfig);
}
}

@Override
protected String upload(byte[] bytes, String contentType) {
initClient();
String realName = UUID.randomUUID().toString() + ".jpg";
try (InputStream is = new ByteArrayInputStream(bytes)){
ObjectMetadata metadata = new ObjectMetadata();
metadata.setContentEncoding(StandardCharsets.UTF_8.name());
metadata.setContentLength(is.available());
metadata.setContentType(contentType);
PutObjectRequest mall = new PutObjectRequest(s3bucket, realName, is, metadata)
.withCannedAcl(CannedAccessControlList.AuthenticatedRead);
// 上传
client.putObject(mall);
return "http://" + s3endpoint + "/" + s3bucket + "/" + realName;
}catch (IOException e){
logger.error("使用亚马逊S3上传文件出现异常",e);
throw new RuntimeException(e);
}
}
}

微软Azure

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public class AzureUploadUtil extends UploadAbstractUtil{
/**
* 用户名
*/
private String accountName;
/**
* 密码
*/
private String accountKey;
/**
* endPoint
*/
private String endPoint;
/**
* containerName
*/
private String containerName;
/**
* 连接串
*/
private String storageConnectionString;

/**
* Azure client
*/
private CloudBlobClient blobClient;

/**
* 构造器
* @param accountName
* @param accountKey
* @param endPoint
* @param containerName
*/
public AzureUploadUtil(String basedir,String accountName, String accountKey, String endPoint, String containerName) {
super(basedir);
this.accountName = accountName;
this.accountKey = accountKey;
this.endPoint = endPoint;
this.containerName = containerName;
this.storageConnectionString = "DefaultEndpointsProtocol=https;AccountName="+ accountName +";AccountKey="+ accountKey +";EndpointSuffix=" + endPoint;
}

/**
* 上传文件到Azure
* @param
* @return
*/
@Override
protected String upload(File tempFile,String realName) {
try {
initClient();
CloudBlobContainer container = blobClient.getContainerReference(containerName);
// Create the container if it does not exist with public access.
container.createIfNotExists(BlobContainerPublicAccessType.CONTAINER, new BlobRequestOptions(), new OperationContext());
//Getting a blob reference
CloudBlockBlob blob = container.getBlockBlobReference(tempFile.getName());
//Creating blob and uploading file to it
blob.uploadFromFile(tempFile.getAbsolutePath());
String imageUrl = "https://"+ accountName +".blob."+ endPoint +"/"+ containerName +"/" + tempFile.getName();
logger.info("微软Azure上传服务------图片url:[{}]", imageUrl);
return imageUrl;
} catch (IOException| StorageException | URISyntaxException e) {
logger.error("使用微软Azure上传文件出现异常",e);
throw new RuntimeException(e);
}
}

/**
* 上传文件到Azure
* @param file
* @return
*/
@Override
String upload(MultipartFile file) {
initClient();
String key = generateUploadFileName(file);
try(InputStream is = new ByteArrayInputStream(file.getBytes())){
CloudBlobContainer container = blobClient.getContainerReference(containerName);
// Create the container if it does not exist with public access.
container.createIfNotExists(BlobContainerPublicAccessType.CONTAINER, new BlobRequestOptions(), new OperationContext());
CloudBlockBlob blob = container.getBlockBlobReference(key);
//Creating blob and uploading file to it
blob.upload(is, is.available());
return "https://"+ accountName +".blob."+ endPoint +"/"+ containerName +"/" + key;
}catch (IOException| StorageException | URISyntaxException e){
logger.error("使用微软Azure上传文件出现异常",e);
throw new RuntimeException(e);
}
}

/**
* 尝试初始化client
*/
@Override
protected void initClient(){
if(blobClient == null){
try{
CloudStorageAccount storageAccount = CloudStorageAccount.parse(storageConnectionString);
blobClient = storageAccount.createCloudBlobClient();
}catch (URISyntaxException|InvalidKeyException e){
logger.error("使用微软Azure初始化client失败!",e);
throw new RuntimeException(e);
}
}
}

@Override
protected String upload(byte[] bytes, String contentType) {
initClient();
String realName = UUID.randomUUID().toString() + ".jpg";
try(InputStream is = new ByteArrayInputStream(bytes)){
CloudBlobContainer container = blobClient.getContainerReference(containerName);
// Create the container if it does not exist with public access.
container.createIfNotExists(BlobContainerPublicAccessType.CONTAINER, new BlobRequestOptions(), new OperationContext());
CloudBlockBlob blob = container.getBlockBlobReference(realName);
//Creating blob and uploading file to it
blob.upload(is, is.available());
return "https://"+ accountName +".blob."+ endPoint +"/"+ containerName +"/" + realName;
}catch (IOException| StorageException | URISyntaxException e){
logger.error("使用微软Azure上传文件出现异常",e);
throw new RuntimeException(e);
}
}
}

腾讯云COS

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public class TencentCOSUploadUtil extends UploadAbstractUtil {

public static final Logger logger = LoggerFactory.getLogger(TencentCOSUploadUtil.class);
/**
* 腾讯云COS AccessKey
*/
private String qAccessKey;
/**
* 腾讯云COS SecretKey
*/
private String qSecretKey;
/**
* 腾讯云COS bucket
*/
private String qBucket;
/**
* 腾讯云COS region
*/
private String qRegion;
/**
* 腾讯云COS qEndpoint
*/
private String qEndpoint;

/**
* 腾讯云COS qEndpointExternal
*/
private String qEndpointExternal;

/**
* COSClient
*/
private COSClient cosClient;

public TencentCOSUploadUtil(String basedir, String qAccessKey, String qSecretKey, String qBucket, String qRegion, String qEndpoint, String qEndpointExternal) {
super(basedir);
this.qAccessKey = qAccessKey;
this.qSecretKey = qSecretKey;
this.qBucket = qBucket;
this.qRegion = qRegion;
this.qEndpoint = qEndpoint;
this.qEndpointExternal = qEndpointExternal;
}

@Override
protected String upload(File tempFile, String realName) {
initClient();
cosClient.putObject(qBucket,realName,tempFile);
URL url =cosClient.generatePresignedUrl(qBucket, realName, new Date(System.currentTimeMillis() + 3600L * 1000 * 24 * 365 * 100));
String urlString = String.valueOf(url).split("\\?")[0];
logger.info("腾讯云COS上传服务------图片内网url:[{}]", urlString);
urlString = urlString.replaceAll(qEndpoint, qEndpointExternal);
logger.info("腾讯云COS上传服务------图片外网url:[{}]", urlString);
return urlString;
}

@Override
String upload(MultipartFile file) {
initClient();
String key = generateUploadFileName(file);
try (InputStream is = new ByteArrayInputStream(file.getBytes())) {
ObjectMetadata metadata = new ObjectMetadata();
metadata.setContentEncoding(StandardCharsets.UTF_8.name());
metadata.setContentLength(file.getSize());
metadata.setContentType(file.getContentType());
// 上传
cosClient.putObject(qBucket,key, is, metadata);
URL url = cosClient.generatePresignedUrl(qBucket, key, new Date(System.currentTimeMillis() + 3600L * 1000 * 24 * 365 * 100));
String urlString = String.valueOf(url).split("\\?")[0];
logger.info("腾讯云COS上传服务------图片内网url:[{}]", urlString);
urlString = urlString.replaceAll(qEndpoint, qEndpointExternal);
logger.info("腾讯云COS上传服务------图片外网url:[{}]", urlString);
return urlString;
}catch (IOException e){
logger.error("使用腾讯云COS上传文件出现异常",e);
throw new RuntimeException(e);
}
}

@Override
protected String upload(byte[] bytes, String contentType) {
initClient();
String realName = UUID.randomUUID().toString() + ".jpg";
try (InputStream is = new ByteArrayInputStream(bytes)) {
ObjectMetadata metadata = new ObjectMetadata();
metadata.setContentEncoding(StandardCharsets.UTF_8.name());
metadata.setContentLength(is.available());
metadata.setContentType(contentType);
// 上传
cosClient.putObject(qBucket,realName, is, metadata);
URL url = cosClient.generatePresignedUrl(qBucket, realName, new Date(System.currentTimeMillis() + 3600L * 1000 * 24 * 365 * 100));
String urlString = String.valueOf(url).split("\\?")[0];
logger.info("腾讯云COS上传服务------图片内网url:[{}]", urlString);
urlString = urlString.replaceAll(qEndpoint, qEndpointExternal);
logger.info("腾讯云COS上传服务------图片外网url:[{}]", urlString);
return urlString;
}catch (IOException e){
logger.error("使用腾讯云COS上传文件出现异常",e);
throw new RuntimeException(e);
}
}

/**
* @Description: 初始化COSCilent
* @Date: 2019/6/2 9:42 AM
* @Params: []
* @Return: void
*/
@Override
protected void initClient() {
if(cosClient==null){
COSCredentials cosCredentials = new BasicCOSCredentials(qAccessKey,qSecretKey);
ClientConfig clientConfig = new ClientConfig(new Region(qRegion));
cosClient = new COSClient(cosCredentials,clientConfig);
}
}

/**
* shutdown Client
*/
public void shutdown(){
cosClient.shutdown();
}
}

用到的相关工具类如下:

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/**
* base64字符串转换成图片
* 对字节数组字符串进行Base64解码并生成图片
* @param imgStr base64字符串
* @param imgFilePath 图片存放路径
* @return
**/
public static boolean Base64ToImage(String imgStr,String imgFilePath) {
// 图像数据为空
if (StringUtils.isEmpty(imgStr)) {
return false;
}
//如果包含 data:image/jpeg;base64, 前缀需要去掉
if(imgStr.contains(",")){
imgStr = imgStr.split(",")[1];
}
BASE64Decoder decoder = new BASE64Decoder();
try {
// Base64解码
byte[] b = decoder.decodeBuffer(imgStr);
for (int i = 0; i < b.length; ++i) {
// 调整异常数据
if (b[i] < 0) {
b[i] += 256;
}
}
OutputStream out = new FileOutputStream(imgFilePath);
out.write(b);
out.flush();
out.close();
return true;
} catch (Exception e) {
return false;
}
}

结合SpringBoot,引入自动配置,生成相关上传Bean,如下:

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@Configuration
public class OssUtilsConfiguration {
@Value("${file.cache.dir}")
private String basedir;

@Value("${file.upload.server.type}")
private String uploadServerType;

@Autowired
private Environment environment;

/**
* 亚马逊S3配置
*/
private String s3accessKey;
private String s3secretKey;
private String s3endpoint;
private String s3bucket;

/**
* 阿里云OSS配置
*/
private String aliyunAccessKey;
private String aliyunSecretKey;
private String aliyunBucket;
private String aliyunEndpoint;
private String aliyunEndpointexternal;

/**
* 微软Azure配置
*/
private String azureAccountName;
private String azureAccountKey;
private String azureEndpointSuffix;
private String azureContainerName;

/**
* 腾讯云COS配置
*/
private String qAccessKey;
private String qSecretKey;
private String qBucket;
private String qRegion;
private String qEndpoint;
private String qEndpointExternal;

/**
* 根据配置的 file.upload.server.type 选择一个上传服务器
* @return
*/
@Bean
public UploadAbstractUtil uploadAbstractUtil(){
//可以根据枚举进行配置 使用阿里云或者亚马逊S3或者Azure
UploadServerEnum uploadServerEnum = UploadServerEnum.getEnum(uploadServerType);
UploadAbstractUtil uploadAbstractUtil;
switch (uploadServerEnum){
//亚马逊s3
case AMAZON:
s3accessKey = environment.getRequiredProperty("s3.accessKey");
s3secretKey = environment.getRequiredProperty("s3.secretKey");
s3endpoint = environment.getRequiredProperty("s3.endpoint");
s3bucket = environment.getRequiredProperty("s3.bucket");
uploadAbstractUtil = new AmazonS3UploadUtil(basedir,s3accessKey,s3secretKey,s3endpoint,s3bucket);
return uploadAbstractUtil;
//阿里云OSS
case ALIOSS:
aliyunAccessKey = environment.getRequiredProperty("aliyun.accessKey");
aliyunSecretKey = environment.getRequiredProperty("aliyun.secretKey");
aliyunBucket = environment.getRequiredProperty("aliyun.bucket");
aliyunEndpoint = environment.getRequiredProperty("aliyun.endpoint");
aliyunEndpointexternal = environment.getRequiredProperty("aliyun.endpointexternal");
uploadAbstractUtil = new AliOssUploadUtil(basedir,aliyunAccessKey,aliyunSecretKey,aliyunEndpoint,aliyunEndpointexternal,aliyunBucket);
return uploadAbstractUtil;
//微软Azure
case AZURE:
azureAccountName = environment.getRequiredProperty("azure.accountName");
azureAccountKey = environment.getRequiredProperty("azure.accountKey");
azureEndpointSuffix = environment.getRequiredProperty("azure.endpointSuffix");
azureContainerName = environment.getRequiredProperty("azure.containerName");
uploadAbstractUtil = new AzureUploadUtil(basedir,azureAccountName,azureAccountKey,azureEndpointSuffix,azureContainerName);
return uploadAbstractUtil;
case TENCENTCOS:
qAccessKey = environment.getRequiredProperty("tencent.accessKey");
qSecretKey = environment.getRequiredProperty("tencent.secretKey");
qBucket = environment.getRequiredProperty("tencent.bucket");
qEndpoint = environment.getRequiredProperty("tencent.endpoint");
qRegion = environment.getRequiredProperty("tencent.region");
qEndpointExternal = environment.getRequiredProperty("tencent.endpointexternal");
uploadAbstractUtil = new TencentCOSUploadUtil(basedir,qAccessKey,qSecretKey,qBucket,qRegion,qEndpoint,qEndpointExternal);
return uploadAbstractUtil;
default:
throw new RuntimeException("暂不支持其他类型的云上传!!!");
}
}
}

UploadServerEnum 枚举如下:

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public enum  UploadServerEnum {
/**
* 阿里云OSS
*/
ALIOSS("aliyun_oss","阿里云OSS"),
/**
* 亚马逊s3
*/
AMAZON("amazon_s3","亚马逊S3"),
/**
* 微软azure
*/
AZURE("azure","微软Azure"),
/**
* 腾讯云cos
*/
TENCENTCOS("tencent_cos","腾讯云cos");

private String value;
private String desc;

UploadServerEnum(String value, String desc) {
this.value = value;
this.desc = desc;
}

public String getValue() {
return value;
}

public void setValue(String value) {
this.value = value;
}

public String getDesc() {
return desc;
}

public void setDesc(String desc) {
this.desc = desc;
}

/**
* 获取一个枚举
* @param value
* @return
*/
public static UploadServerEnum getEnum(String value){
return Arrays.stream(UploadServerEnum.values()).filter(e->e.value.equals(value)).findFirst().get();
}
}

我们看到代码比较多……

其实几种云上传的核心只要理解,便非常清楚了。它们的大致步骤如下:

  1. 根据配置信息创建上传client
  2. 上传文件(有多种方式,直接上传文件或根据文件流来上传等)
  3. 上传结果,获取上传文件路径等等。
  4. 如需关闭client,需要关闭client。

总结

通过学习如何进行文件云上传,我们掌握了云上传的方法,也可以体验到一些封装、继承、多态的好处,总的来说是蛮不错的一次体验。

项目地址: ossutils-spring-boot




-------------文章结束啦 ~\(≧▽≦)/~ 感谢您的阅读-------------

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