第一次使用阿里雲的雲端儲存，mark一下
1.首先，你需要申請購買到AccessKey 和 AccessKeySecret。
因許可權問題，建議開通單獨的RAM帳號
在雲服務中開啟新建一個bucket空間，用於儲存上傳的檔案儲存位置
2.編碼工作開始:
1)maven中引入jar包
pom檔案配置

<dependency>
<groupId>com.aliyun.oss</groupId>
<artifactId>aliyun-sdk-oss</artifactId>
<version>2.8.3</version
 
>
</dependency>

2）設定oss的相關引數在properties檔案中，我的檔案是oss.properties

Endpoint=your endPoint
AccessKey=your accessKey
AccessKeySecret=your accessKeySecret
BucketName=your bucketName

3)java中程式碼上傳及獲取可訪問的url地址

OSSClient ossClient = null;
String url = "";
String fileName = "your file name";
//上傳阿里雲
 

try {
    // 建立上傳Object的Metadata
    ObjectMetadata metadata = new ObjectMetadata();
    // 指定該Object被下載時的網頁的快取行為
    metadata.setCacheControl("no-cache");
    // 指定該Object下設定Header
    metadata.setHeader("Pragma", "no-cache");
    // 指定該Object被下載時的內容編碼格式
    metadata.setContentEncoding("utf-8");
    // 檔案的MIME，定義檔案的型別及網頁編碼，決定瀏覽器將以什麼形式、什麼編碼讀取檔案。如果使用者沒有指定則根據Key或檔名的副檔名生成，
 

    // 如果沒有副檔名則填預設值application/octet-stream,apk檔案的contentType
    metadata.setContentType("application/octet-stream");
    //讀取配置檔案
     OSSConfigure ossCon = new OSSConfigure("/properties/oss.properties");
    //建立ossClient
    ossClient = new OSSClient(ossCon.getEndpoint(), ossCon.getAccessKeyId(), ossCon.getAccessKeySecret());
    //判斷bucket是否存在
    if(ossClient.doesBucketExist(ossCon.getBucketName())) {
        //已存在，不用處理
    }else {
        // 建立儲存空間 
        ossClient.createBucket(ossCon.getBucketName());
    }
    // 檔案轉換為輸入流
    CommonsMultipartFile cf = (CommonsMultipartFile) file;
    DiskFileItem fi = (DiskFileItem) cf.getFileItem();
    InputStream fileContent;
    fileContent = fi.getInputStream();
    //oss 檔案上傳
    ossClient.putObject(ossCon.getBucketName(), fileName, fileContent, metadata);
    //獲取其url
    Date expiration = new Date(new Date().getTime() + 3600l * 1000 * 24 * 365 * 10);
    url = ossClient.generatePresignedUrl(ossCon.getBucketName(), fileName, expiration).toString();
    // 關閉client
    ossClient.shutdown();
}catch(OSSException e) {
    e.printStackTrace();
}catch(ClientException e) {
    e.printStackTrace();
}catch (IOException e) {
    e.printStackTrace();
} finally { //保證是否存在異常，ossClint都要關閉，不然會在console中持續提示ossClient未關閉
    if(ossClient != null) {
        ossClient.shutdown();
    }
}

4）最後，附上自己寫的OSSConfigure類

import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;

public class OSSConfigure {
    private String endpoint;
    private String accessKeyId;
    private String accessKeySecret;
    private String bucketName;
    public OSSConfigure() {
    }
    //建構函式-傳入properties檔案路徑
    public OSSConfigure(String storageConfName) throws IOException {
        Properties prop = new Properties();
        InputStream is = super.getClass().getClassLoader().getResourceAsStream(storageConfName);
        prop.load(is);
        endpoint = prop.getProperty("Endpoint").trim();
        accessKeyId = prop.getProperty("AccessKey").trim();
        accessKeySecret = prop.getProperty("AccessKeySecret").trim();
        bucketName = prop.getProperty("BucketName").trim();
    }
    //建構函式-傳入oss預設配置的值
    public OSSConfigure(String endpoint, String accessKeyId, String accessKeySecret, String bucketName) {
        this.endpoint = endpoint;
        this.accessKeyId = accessKeyId;
        this.accessKeySecret = accessKeySecret;
        this.bucketName = bucketName;
    }
    public String getEndpoint() {
        return endpoint;
    }
    public void setEndpoint(String endpoint) {
        this.endpoint = endpoint;
    }
    public String getAccessKeyId() {
        return accessKeyId;
    }
    public void setAccessKeyId(String accessKeyId) {
        this.accessKeyId = accessKeyId;
    }
    public String getAccessKeySecret() {
        return accessKeySecret;
    }
    public void setAccessKeySecret(String accessKeySecret) {
        this.accessKeySecret = accessKeySecret;
    }
    public String getBucketName() {
        return bucketName;
    }
    public void setBucketName(String bucketName) {
        this.bucketName = bucketName;
    }
}

以上。