Java by API/javax.net/URLConnection

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Версия от 14:35, 31 мая 2010; Admin (обсуждение | вклад) (1 версия)
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URLConnection: getContentLength()

/*
 * Output:
 * 
Date: 1145919603000
Type: text/html
Exp: 0
Last M: 1143834458000
Length: 208546
 */

import java.net.URL;
import java.net.URLConnection;
public class MainClass {
  public static void main(String args[]) throws Exception {
    int c;
    URL hp = new URL("http", "www.jexp.ru", 80, "/");
    URLConnection hpCon = hp.openConnection();
    System.out.println("Date: " + hpCon.getDate());
    System.out.println("Type: " + hpCon.getContentType());
    System.out.println("Exp: " + hpCon.getExpiration());
    System.out.println("Last M: " + hpCon.getLastModified());
    System.out.println("Length: " + hpCon.getContentLength());
  }
}





URLConnection: getContentType()

/*
 * Output:
 * 
Date: 1145919603000
Type: text/html
Exp: 0
Last M: 1143834458000
Length: 208546
 */

import java.net.URL;
import java.net.URLConnection;
public class MainClass {
  public static void main(String args[]) throws Exception {
    int c;
    URL hp = new URL("http", "www.jexp.ru", 80, "/");
    URLConnection hpCon = hp.openConnection();
    System.out.println("Date: " + hpCon.getDate());
    System.out.println("Type: " + hpCon.getContentType());
    System.out.println("Exp: " + hpCon.getExpiration());
    System.out.println("Last M: " + hpCon.getLastModified());
    System.out.println("Length: " + hpCon.getContentLength());
  }
}





URLConnection: getDate()

/*
 * Output:
 * 
Date: 1145919603000
Type: text/html
Exp: 0
Last M: 1143834458000
Length: 208546
 */

import java.net.URL;
import java.net.URLConnection;
public class MainClass {
  public static void main(String args[]) throws Exception {
    int c;
    URL hp = new URL("http", "www.jexp.ru", 80, "/");
    URLConnection hpCon = hp.openConnection();
    System.out.println("Date: " + hpCon.getDate());
    System.out.println("Type: " + hpCon.getContentType());
    System.out.println("Exp: " + hpCon.getExpiration());
    System.out.println("Last M: " + hpCon.getLastModified());
    System.out.println("Length: " + hpCon.getContentLength());
  }
}





URLConnection: getExpiration()

/*
 * Output:
 * 
Date: 1145919603000
Type: text/html
Exp: 0
Last M: 1143834458000
Length: 208546
 */

import java.net.URL;
import java.net.URLConnection;
public class MainClass {
  public static void main(String args[]) throws Exception {
    int c;
    URL hp = new URL("http", "www.jexp.ru", 80, "/");
    URLConnection hpCon = hp.openConnection();
    System.out.println("Date: " + hpCon.getDate());
    System.out.println("Type: " + hpCon.getContentType());
    System.out.println("Exp: " + hpCon.getExpiration());
    System.out.println("Last M: " + hpCon.getLastModified());
    System.out.println("Length: " + hpCon.getContentLength());
  }
}





URLConnection: getInputStream()

/*
 * Output:
 * 
<HTML>
<HEAD>
    <title> Java examples (example source code) Organized by topic </title>
    <meta content="text/html; charset=UTF-8" http-equiv="content-type">    <meta name="author" content="Demo Source and Support Ltd."/>
    <meta name="copyright" content="?2003 Demo Source and Support Ltd."/>
    <meta name="description" CONTENT=" Java examples (example source code) Organized by topic " />
    <meta name="keywords" CONTENT=" Java examples (example source code) Organized by topic "/>
    <meta http-equiv="content-style-type" content="text/css"/>
    <LINK href="http://www.jexp.ru/style/jss.css" type=text/css rel=stylesheet>
<SCRIPT language=javascript1.2>
...
...
 */

import java.io.InputStream;
import java.net.URL;
import java.net.URLConnection;
public class MainClass {
  public static void main(String args[]) throws Exception {
    int c;
    URL hp = new URL("http", "www.jexp.ru", 80, "/");
    URLConnection hpCon = hp.openConnection();
    if (hpCon.getContentLength() > 0) {
      InputStream input = hpCon.getInputStream();
      int i = hpCon.getContentLength();
      while (((c = input.read()) != -1) && (--i > 0)) {
        System.out.print((char) c);
      }
      input.close();
    } else {
      System.out.println("No Content Available");
    }
  }
}





URLConnection: getLastModified()

/*
 * Output:
 * 
Date: 1145919603000
Type: text/html
Exp: 0
Last M: 1143834458000
Length: 208546
 */

import java.net.URL;
import java.net.URLConnection;
public class MainClass {
  public static void main(String args[]) throws Exception {
    int c;
    URL hp = new URL("http", "www.jexp.ru", 80, "/");
    URLConnection hpCon = hp.openConnection();
    System.out.println("Date: " + hpCon.getDate());
    System.out.println("Type: " + hpCon.getContentType());
    System.out.println("Exp: " + hpCon.getExpiration());
    System.out.println("Last M: " + hpCon.getLastModified());
    System.out.println("Length: " + hpCon.getContentLength());
  }
}


Источник — «http://jexp.ru/index.php?title=Java_by_API/javax.net/URLConnection&oldid=1706»