為HttpURLConnection添加標頭我正在嘗試為我的請求添加標頭，HttpUrlConnection但該方法setRequestProperty()似乎不起作用。服務器端沒有收到帶有標頭的任何請求。HttpURLConnection hc;
try {
String authorization = "";
URL address = new URL(url);
hc = (HttpURLConnection) address.openConnection();
hc.setDoOutput(true);
hc.setDoInput(true);
hc.setUseCaches(false);
if (username != null && password != null) {
authorization = username + ":" + password;
}
if (authorization != null) {
byte[] encodedBytes;
encodedBytes = Base64.encode(authorization.getBytes(), 0);
authorization = "Basic " + encodedBytes;
hc.setRequestProperty("Authorization", authorization);
}
3 回答
不負相思意
TA貢獻1777條經驗 獲得超10個贊
我以前使用過以下代碼，它在TomCat中啟用了基本身份驗證：
URL myURL = new URL(serviceURL);
HttpURLConnection myURLConnection = (HttpURLConnection)myURL.openConnection();
String userCredentials = "username:password";
String basicAuth = "Basic " + new String(Base64.getEncoder().encode(userCredentials.getBytes()));
myURLConnection.setRequestProperty ("Authorization", basicAuth);
myURLConnection.setRequestMethod("POST");
myURLConnection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
myURLConnection.setRequestProperty("Content-Length", "" + postData.getBytes().length);
myURLConnection.setRequestProperty("Content-Language", "en-US");
myURLConnection.setUseCaches(false);
myURLConnection.setDoInput(true);
myURLConnection.setDoOutput(true);
您可以嘗試上面的代碼。上面的代碼用于POST，您可以為GET修改它
一只甜甜圈
TA貢獻1836條經驗 獲得超5個贊
只是因為我在上面的答案中沒有看到這一點信息，最初發布的代碼片段無法正常工作的原因是因為encodedBytes變量是a byte[]而不是String值。如果您將傳遞byte[]給a new String()，如下所示，代碼段完美無缺。
encodedBytes = Base64.encode(authorization.getBytes(), 0);authorization = "Basic " + new String(encodedBytes);
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