URLConnection을 확장(상속)한 클래스이며 HTTP 프로토콜을 위한것이라고 보시면 됩니다. 생성자는 다음과
같습니다.
HttpURLConnection(URL u) -- Constructor for the HttpURLConnection
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예제1
------------------
import
java.io.*;
import java.net.*;
class HttpUrlConnectionTest{
public
static void main(String[] args) throws Exception {
try{
URL aURL = new
URL("http", "www.oraclejavanew.kr", 80 , "/index.html");
HttpURLConnection
connection = (HttpURLConnection)aURL.openConnection();
int responseCode =
connection.getResponseCode();
if (responseCode ==
HttpURLConnection.HTTP_OK) {
System.out.println("Request Method : " +
connection.getRequestMethod());
System.out.println("Request Code : " +
connection.getResponseCode());
System.out.println("Request Message : " +
connection.getResponseMessage());
BufferedReader in = new BufferedReader(new
InputStreamReader(connection.getInputStream()));
//BufferedInputStream bi =
new BufferedInputStream(connection.getInputStream());
//int b;
//while((b = bi.read()) != -1) {
//System.out.write(b);
//}
String line;
while ((line = in.readLine()) != null) {
//System.out.println(line);
}
}
}
catch(IOException e) {
System.out.println("IOException :"+ e);
}
}
}
-------------------
예제2
-------------------
import java.io.*;
import java.net.*;
class HttpUrlConnectionTest2{
public static void main(String[] args) throws IOException {
try{
URL
url = new URL("http", "www.neonet.co.kr", 80,
"/rebank/common/login_after_new.neo?/rebank/index.neo");
HttpURLConnection
connection = (HttpURLConnection)url.openConnection();
connection.setDoOutput(true);
//connection.setRequestMethod("POST");
PrintWriter out = new PrintWriter(connection.getOutputStream());
out.println("id=" + URLEncoder.encode("mylife68", "UTF-8"));
out.println("&passwd=" + URLEncoder.encode("tatata", "UTF-8"));
System.out.println(connection.getResponseCode());
BufferedReader in = new BufferedReader(new
InputStreamReader(connection.getInputStream()));
Writer file = new
FileWriter("test.html");
String line;
while ((line = in.readLine()) !=
null) {
System.out.println(line);
file.write(line);
}
in.close();
out.close();
}
catch(IOException e) {
System.out.println("IOException :"+ e);
}
}
}
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