java 访问HTTPS rest服务

import java.io.*;
import java.net.*;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import javax.net.ssl.*;

import org.json.JSONObject;

public class AgsPortalLogic {

/**
* @param args
*/
private static class TrustAnyTrustManager implements X509TrustManager {

public void checkClientTrusted(X509Certificate[] chain, String authType)
throws CertificateException {
}

public void checkServerTrusted(X509Certificate[] chain, String authType)
throws CertificateException {
}

public X509Certificate[] getAcceptedIssuers() {
return new X509Certificate[] {};
}
}

private static class TrustAnyHostnameVerifier implements HostnameVerifier {
public boolean verify(String hostname, SSLSession session) {
return true;
}
}
public static void main(String[] args) throws Exception {
InputStream in = null;
OutputStream out = null;
byte[] buffer = new byte[4096];
String str_return = "";
try {
SSLContext sc = SSLContext.getInstance("SSL");
sc.init(null, new TrustManager[] { new TrustAnyTrustManager() },
new java.security.SecureRandom());
URL console = new URL(
"https://portal190182.arcgiscloud.com/arcgis/sharing/generateToken");
HttpsURLConnection conn = (HttpsURLConnection) console.openConnection();
conn.setRequestMethod("POST");
conn.setSSLSocketFactory(sc.getSocketFactory());
conn.setHostnameVerifier(new TrustAnyHostnameVerifier());
conn.setRequestProperty("Accept", "application/json");
conn.setDoInput(true);
conn.setDoOutput(true);

String inpputs="username=arcgis&password=arcgis123&client=requestip&f=json";
OutputStream os = conn.getOutputStream();
os.write(inpputs.getBytes());
os.close();
conn.connect();

InputStream is = conn.getInputStream();
// // DataInputStream indata = new DataInputStream(is);
BufferedReader reader=new BufferedReader(new InputStreamReader(is));
String ret = "";
while (ret != null) {
ret = reader.readLine();
if (ret != null && !ret.trim().equals("")) {
str_return = str_return
+ ret;
}

}

conn.disconnect();
} catch (ConnectException e) {
System.out.println("ConnectException");
System.out.println(e);
throw e;

} catch (IOException e) {
System.out.println("IOException");
System.out.println(e);
throw e;

} finally {
try {
in.close();
} catch (Exception e) {
}
try {
out.close();
} catch (Exception e) {
}
}
JSONObject jsonobject = new JSONObject(str_return);
System.out.println(jsonobject.getString("token"));

}

}