创建文件系统

package com.sfsclient;

import java.io.*;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.List;
import java.util.Map;

public class TestMain {
    // 您可以通过环境变量获取访问密钥AK/SK，也可以使用其他外部引入方式传入。如果使用硬编码可能会存在泄露风险。
    // 您可以登录访问管理控制台获取访问密钥AK/SK
    public static String accessKey = System.getenv("HUAWEICLOUD_SDK_AK");
    public static String securityKey = System.getenv("HUAWEICLOUD_SDK_SK"); 
    public static String region = "cn-east-3"; // 取值为规划文件系统所在的区域

    public static String endpoint = "sfs3.cn-east-3.myhuaweicloud.com"; // 通用文件系统服务地址
    
    public static String createSfsBody =
            "<CreateBucketConfiguration >\n" +
                    "<Location>" + region + "</Location>\n" +
                    "</CreateBucketConfiguration>";

    public static void main(String[] str) {

        createFileSystem();

    }
    private static void createFileSystem() {
        // 文件系统名称
        String fileSystemName = "example-sfs-001";

        String httpMethod = "PUT";
        String date = DateUtils.formatDate(System.currentTimeMillis());
        String contentType = "application/xml";

        /** 根据请求计算签名**/
        String contentMD5 = "";
        String canonicalizedHeaders = "x-obs-bucket-type:SFS";
        String canonicalizedResource = "/" + fileSystemName ;

        // Content-MD5 、Content-Type 没有直接换行， data格式为RFC 1123，和请求中的时间一致
        String stringToSign = httpMethod + "\n" +
                contentMD5 + "\n" +
                contentType + "\n" +
                date + "\n" +
                canonicalizedHeaders  + "\n" + canonicalizedResource;

        System.out.printf("StringToSign:\n[%s]\n\n", stringToSign);

        HttpURLConnection conn = null;

        try {
            String signature = Signature.signWithHmacSha1(securityKey, stringToSign);
            String authorization= "OBS " + accessKey + ":" + signature;
            System.out.printf("authorization:%s\n\n", authorization);

            URL url = new URL("http://" + endpoint + "/" + fileSystemName);
            conn = (HttpURLConnection) url.openConnection();

            // 增加签名头域
            conn.setRequestMethod(httpMethod);
            conn.setRequestProperty("Date", date);
            conn.setRequestProperty("Content-Type", contentType);
            conn.setRequestProperty("x-obs-bucket-type", "SFS");
            conn.setRequestProperty("Authorization", authorization);
            conn.setDoOutput(true);

            // 增加body体
            OutputStream out = conn.getOutputStream();
            out.write(createSfsBody.getBytes());
            out.flush();
            out.close();

            String status = conn.getHeaderField(null);
            System.out.println(status);

            // 输出收到的响应消息
            Map<String, List<String>> headers = conn.getHeaderFields();
            for (Map.Entry<String, List<String>> entry : headers.entrySet()) {
                String key = entry.getKey();
                List<String> values = entry.getValue();
                if (key != null) {
                    for (String value : values) {
                        System.out.println(key + ": " + value);
                    }
                }
            }
            // 请求出错处理
            int statusCode = conn.getResponseCode();
            if (statusCode != HttpURLConnection.HTTP_OK && statusCode != HttpURLConnection.HTTP_NO_CONTENT) {
                InputStream errorStream = conn.getErrorStream();
                BufferedReader reader = new BufferedReader(new InputStreamReader(errorStream));
                StringBuilder responseBody = new StringBuilder();
                String line;
                while ((line = reader.readLine()) != null) {
                    responseBody.append(line);
                }
                reader.close();

                System.out.println("Error: " + responseBody);
            }
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            if (conn != null){
                conn.disconnect();
            }
        }
    }
}