Cosmos db Rest API

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我正在尝试使用 REST API 向使用 android 的 db cosmos 获取 get 请求！azure cosmos db 有一个特定的标题，但我认为一切都是正确的

I'm trying to get a get request to the db cosmos using android, using REST API! The azure cosmos db has a specific heading, but I think everything is correct

但是，当我使用 Http REST API 时，我收到错误 Unauthorized 401，你能帮我吗?

However, when I use Http REST API I get the error Unauthorized 401, can you help me?

@Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); n = findViewById(R.id.teste11); Button buttonParse = findViewById(R.id.button_parse); buttonParse.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { try { getwebservice(); } catch (Exception e) { e.printStackTrace(); } } }); client = new OkHttpClient(); }

Getwebservices 方法

Getwebservices method

private void getwebservice() throws Exception { String headerDate = getDateString(); String gen = generateAuthHeader("GET", "docs", "dbs/tempdb/colls/tempcoll/docs/WakefieldFamily", headerDate, PRIMARY_KEY); final Request request = new Request.Builder() .url("***.documents.azure:443/dbs/***/colls/***/docs/WakefieldFamily") .get() .addHeader("Accept", "application/json") .addHeader("x-ms-version", "2017-02-22") .addHeader("Authorization", gen) .addHeader("x-ms-date", headerDate) .addHeader("cache-control", "no-cache") .build(); okhttp3.Response response = null; client.newCall(request).enqueue(new Callback() { Headers g = request.headers(); @Override public void onFailure(okhttp3.Call call, IOException e) { MainActivity.this.runOnUiThread(new Runnable() { @Override public void run() { String g = "oi"; } }); } @Override public void onResponse(okhttp3.Call call, okhttp3.Response response) throws IOException { runOnUiThread(new Runnable() { @Override public void run() { n.setText(String.valueOf(response.code())); } }); } }); }

这些是签名和标题日期的辅助方法

These are the auxiliary methods for signature and header date

public String getDateString() { SimpleDateFormat formatter = new SimpleDateFormat("EEE, dd MMM yyyy HH:mm:ss 'GMT'", Locale.US); formatter.setTimeZone(TimeZone.getTimeZone("GMT")); return formatter.format(new Date()).toLowerCase(); } public String generateAuthHeader(String verb, String resourceType, String resourceId, String date, String masterKeyBase64) throws Exception { byte[] masterKeyBytes = Base64.decode(masterKeyBase64, Base64.NO_WRAP); Mac mac = Mac.getInstance("HMACSHA256"); mac.init(new SecretKeySpec(masterKeyBytes, "HMACSHA256")); //Build the unsigned auth string. String stringToSign = verb.toLowerCase() + "\n" + resourceType.toLowerCase() + "\n" + resourceId + "\n" + date.toLowerCase() + "\n" + "\n"; //Sign and encode the auth string. String signature = Base64.encodeToString(mac.doFinal(stringToSign.toLowerCase().getBytes("UTF-8")), Base64.NO_WRAP); //Generate the auth header. String authHeader = URLEncoder.encode("type=master&ver=1.0&sig=" + signature, "UTF-8"); return authHeader; }

我仍在尝试弄清楚这是如何工作的.

I'm still trying to figure out how this works.

推荐答案

我认为问题在于您将 stringToSign 变量转换为小写.resourceId 有一些大写字母，在这个过程中会被转换.

I think the problem is that you are converting the stringToSign variable to lower case. And the resourceId has some capital letters which are converted in the process.