如何在java中访问https站点
我必须通过java代码访问https站点。但它返回401响应。我在下面包含了我的代码如何在java中访问https站点,java,https,httpurlconnection,Java,Https,Httpurlconnection,我必须通过java代码访问https站点。但它返回401响应。我在下面包含了我的代码 try { URL u = new URL(url); HttpURLConnection http = (HttpURLConnection)u.openConnection(); http.setAllowUserInteraction(true); http.connect(); String userpassword = "HP:M0lveau"; byte[] encod
try {
URL u = new URL(url);
HttpURLConnection http = (HttpURLConnection)u.openConnection();
http.setAllowUserInteraction(true);
http.connect();
String userpassword = "HP:M0lveau";
byte[] encoded = Base64.encodeBase64(userpassword.getBytes());
String encodedAuthorization = new String(encoded);
http.setRequestProperty("Authorization", "Basic " + encodedAuthorization);
InputStream is = http.getInputStream();
BufferedReader reader = new BufferedReader(new InputStreamReader(is));
StringBuilder stringBuilder = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null) {
stringBuilder.append(line + "\n");
}
return stringBuilder.toString();
} catch (IOException ioe) {
logger.debug("fetchDataFromServer:IOException");
return null;
}
请尽早帮助我。。提前感谢….401响应意味着请求需要用户身份验证。看 有点像
public static String userNamePasswordBase64(String username, String password)
{
return "Basic " + base64Encode (username + ":" + password);
}
static public String base64Encode(String s)
{
ByteArrayOutputStream bout = new ByteArrayOutputStream();
Base64OutputStream out = new Base64OutputStream(bout);
try
{
out.write(s.getBytes());
out.flush();
} catch (IOException e)
{
}
return bout.toString();
}
然后使用
http.setRequestProperty ("Authorization",userNamePasswordBase64("HP","M01veau"));
http.connect();
还要手动检查这些凭据在给定url上是否正常工作。
另外尝试在调用connect()之前设置授权标头。我得到了它。。这是我的密码
private static String fetchDataFromServer() throws HttpException, IOException, NoSuchAlgorithmException, KeyManagementException {
logger.trace("__ENTERING CluemasterData::fetchDataFromServer()");
try {
URL u = new URL("https://....");
HttpsURLConnection http = (HttpsURLConnection)u.openConnection();
Authenticator.setDefault( new MyAuthenticator() );
http.setAllowUserInteraction(true);
http.setRequestMethod("GET");
http.connect();
InputStream is = http.getInputStream();
BufferedReader reader = new BufferedReader(new InputStreamReader(is));
StringBuilder stringBuilder = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null)
{
stringBuilder.append(line + "\n");
}
return stringBuilder.toString();
}
catch (HttpException he) {
return null;
}
catch (IOException ioe) {
return null;
}
}
类MyAuthenticator
import java.net.Authenticator;
import java.net.PasswordAuthentication;
class MyAuthenticator extends Authenticator
{
/**
* Called when password authorization is needed.
* @return The PasswordAuthentication collected from the
* user, or null if none is provided.
*/
protected PasswordAuthentication getPasswordAuthentication()
{
return new PasswordAuthentication ( "username", "password".toCharArray() );
}
}
我想你的意思是设置用户名和密码。但是我已经设置好了。@Sarika:当你正常通过浏览器访问这个网站时,你的凭证(usename/passwd)有效吗??url是什么?@Sarika:请参见编辑后的答案中的新函数base64Encode()。也许会有帮助。也可以看到@sARIKA:Maurice提到的“尝试在调用connect()之前设置授权头”,就像我在回答中提到的那样。该包是包gnu.inet.mime.base64。检查这个-还有这个@Sarika:你所说的“对主机站点的响应”是什么意思?你得到了怎样的回应?假设您的用户名和密码正确,我上面给出的身份验证代码是正确的。而且非常重要-当您正常通过浏览器访问此URL时,您的用户名/密码工作正常吗??