2019.01.30 JAVA에서 HTML문서 만들기

2019. 1. 30. 16:36JAVA


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package com.example;
 
import java.io.IOException;
import java.io.PrintWriter;
 
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
 
@WebServlet("/funny")
public class Test1 extends HttpServlet {
     private static final long serialVersionUID = 1L;
 
       
        public Test1() {
          super();
       }
        
       @Override
       protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
          
          // step1: set the content type
          resp.setContentType("text/html");
          
          // step2: get the printwriter
          PrintWriter out = resp.getWriter();
          
          // step3: generate HTML content
          out.println("<html><body>");
          
          out.println("<h2>Hello World</h2>");
          out.println("<hr>");
          out.println("Time on the server is: "+new java.util.Date());
          
          out.println("</body></html>");
       }
 
       @Override
       protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
          // TODO Auto-generated method stub
          doGet(req, resp);
       }
       
       
    }
 
 
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실행화면▼







>>클래스파일 생성시 확인사항



>>처음 만들어진 클래스 

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package com.example;
 
import javax.servlet.http.HttpServlet;
 
public class Test1 extends HttpServlet {
 
}
 
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>> HttpServlet에서 상속되므로 오버라이딩이 필요하다



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package com.example;
 
import java.io.IOException;
import java.io.PrintWriter;
 
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
 
/*TomCat서버와 연결하기위해 @WebServlet을 추가 ,/현재프로젝트의 이름*/
/*서블릿은 TomCat이 호출해준다. */
@WebServlet("/jsp1/loginPro.html")
public class LoginProServlet extends HttpServlet {
 
    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        System.out.println("doGet() 메소드 호출");
        String id = req.getParameter("id");
        String pw =req.getParameter("password");
        
        /*서블릿에서는 jsp에서 동작되는 출력 등의 기능을 직접 메소드 정의해줘야한다.*/
        /*out.println는 jsp의 기능이므로 새로이 정의해줘야된다. */
        resp.setContentType("text/html; charest=UTF-8"); //브라우저에 포함되는 문서내용 타입 정의
        PrintWriter out = resp.getWriter(); // 
        out.println(id+" : "+pw);
    }//doGet
 
    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        System.out.println("doPost() 메소드 호출");
        req.setCharacterEncoding("utf-8");
        doGet(req, resp);
    }
    
}
 
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