package ch01;
import java.io.IOException;
import java.net.InetSocketAddress;
import com.sun.net.httpserver.*;
public class SimpleHttpServer {
public static void main(String[] args) {
try {
HttpServer.create(new InetSocketAddress(8080), 0);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
package ch01;
import java.io.IOException;
import java.io.OutputStream;
import java.net.InetSocketAddress;
import com.sun.net.httpserver.HttpExchange;
import com.sun.net.httpserver.HttpHandler;
import com.sun.net.httpserver.HttpServer;
public class SimpleHttpServer {
public static void main(String[] args) {
// 8080 <- https, 80 <-- http (포트번호 생략 가능하다)
try {
// 포트 번호 8080 으로 HTTP 서버 생성
HttpServer httpServer = HttpServer.create(new InetSocketAddress(8080), 0);
// 서버에대한 설정
// 프로토콜 정의 (경로, 핸들러 처리),
// 핸들러 처리를 내부 정적 클래스로 사용
httpServer.createContext("/test", new MyTestHandler());
httpServer.createContext("/hello", new HelloHandler());
// 서버 시작
httpServer.start();
System.out.println(">> My Http Server started on port 8080");
} catch (IOException e) {
e.printStackTrace();
}
}// end of main
// http://localhost:8080/test <- 주소 설계
static class MyTestHandler implements HttpHandler {
@Override
public void handle(HttpExchange exchange) throws IOException {
// 사용자의 요청 방식(METHOD ) , GET, POST 알아야 우리가 동작 시킬 수 있다.
String method = exchange.getRequestMethod();
System.out.println("method : " + method);
if("GET".equalsIgnoreCase(method)) {
// Get 요청시 이라면 여기 동작
// System.out.println("여기는 Get 방식으로 호출 됨");
//GET -> path: /test 라고 들어오면 어떤 응답 처리를 내려 주면 된다.
handleGetRequest(exchange);
} else if("POST".equalsIgnoreCase(method)) {
// Post 요청시 여기 동작
// System.out.println("여기는 Post 방식으로 호출 됨");
handlePostRequest(exchange);
} else {
// 지원하지 않는 메서드에 대한 응답
String respnose = "Unsupported Methdo : " + method;
exchange.sendResponseHeaders(405, respnose.length()); // Method Not Allowed
// 예시
// new OutputStreamWriter(exchange.getResponseBody());
// new PrintWriter(exchange.getResponseBody());
OutputStream os = exchange.getResponseBody();
os.write(respnose.getBytes());
os.flush();
os.close();
}
}
// Get 요청시 동작 만들기
private void handleGetRequest(HttpExchange exchange) throws IOException {
String response = """
<!DOCTYPE html>
<html lang=ko>
<head></head>
<body>
<h1 style="background-color:red"> Hello path by /test </h1>
</body>
</html>
""";
// String response = "hello GET ~~ "; // 응답 메세지
exchange.sendResponseHeaders(200, response.length());
OutputStream os = exchange.getResponseBody();
os.write(response.getBytes()); // 응답 본문 전송
os.close();
}
// Post 요청시 동작 만들기
private void handlePostRequest(HttpExchange exchange) throws IOException {
// POST 요청은 HTTP 메세지에 바디 영역이 존재 한다.
String response = """
<!DOCTYPE html>
<html lang=ko>
<head></head>
<body>
<h1 style="background-color:red"> Hello path by /test </h1>
</body>
</html>
""";
// HTTP 응답 메세지 헤더 설정
exchange.setAttribute("Content-Type", "text/html; charset=UTF-8");
exchange.sendResponseHeaders(200, response.length());
// getResponseBody
OutputStream os = exchange.getResponseBody();
os.write(response.getBytes());
os.flush();
os.close();
}
} // end of MyTestHandler
// Get 방식과 Post 방식에 응답을 직접 정의해보세요
static class HelloHandler implements HttpHandler {
@Override
public void handle(HttpExchange exchange) throws IOException {
String method = exchange.getRequestMethod();
System.out.println(" hello method : " + method);
}
} // end of HelloHandler
} // end of class: HelloHandler 를 Get 방식, Post 방식에 응답 처리를 직접 해보세요
💡 도전 과제
|
package ch01;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.net.InetSocketAddress;
import com.sun.net.httpserver.HttpExchange;
import com.sun.net.httpserver.HttpHandler;
import com.sun.net.httpserver.HttpServer;
public class DoitHttpServer {
public static void main(String[] args) {
try {
HttpServer httpServer = HttpServer.create(new InetSocketAddress(8080), 0);
httpServer.createContext("/now", new nowHandler());
httpServer.start();
System.out.println(" >> HTTP now Server Start");
} catch (IOException e) {
e.printStackTrace();
}
} // end of main
static class nowHandler implements HttpHandler {
@Override
public void handle(HttpExchange exchange) throws IOException {
String method = exchange.getRequestMethod();
System.out.println("method : " + method);
if ("GET".equalsIgnoreCase(method)) {
System.out.println("get 확인");
handleGetRequest(exchange);
} else if ("POST".equalsIgnoreCase(method)) {
System.out.println("post 확인");
handlePostRequest(exchange);
}
}
private void handleGetRequest(HttpExchange exchange) throws IOException {
String response = """
<!DOCTYPE html>
<html lang = ko>
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
</head>
<body>
<h1 style = "background-color:blue">허니 오 허니 너무 보고싶어어억!</h1>
</body>
</html>
""";
exchange.getResponseHeaders().set("Content-Type", "text/html; charset=UTF-8");
exchange.sendResponseHeaders(200, response.getBytes("UTF-8").length);
BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(exchange.getResponseBody(),"UTF-8"));
bw.write(response);
bw.flush();
bw.close();
}
private void handlePostRequest(HttpExchange exchange) throws IOException {
String response = """
<!DOCTYPE html>
<html lang = ko>
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
</head>
<body>
<h1 style = "background-color:blue">이것은 post라는 것이다</h1>
</body>
</html>
""";
// 한글 나오게 하기
exchange.setAttribute("Content-Type", "text/html; charset=UTF-8");
exchange.sendResponseHeaders(200, response.length());
BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(exchange.getResponseBody()));
bw.write(response);
bw.flush();
bw.close();
}
} // end of nowHandler
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