JAVA EXAMPLE PROGRAMS

JAVA EXAMPLE PROGRAMS

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How to connect to a URL and read its content in Java?


Description:

You can read content of an URL object aftter connecting to it. You have to call the URL's openStream() method to get a stream from which you can read the contents of the URL. The openStream() method returns a java.io.InputStream object, so reading from a URL is as easy as reading from an input stream. Below example shows sample code:


Code:
package com.myjava.url;

import java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.net.URL;

public class MyUrlContentRead {

    public static void main(String a[]){
    
        URL url = null;
        InputStream is = null;
        try {
            url = new URL("http://www.java2novice.com");
            is = url.openStream();
            byte[] b = new byte[8];
            while(is.read(b) != -1){
                System.out.print(new String(b));
            }
        }  catch (MalformedURLException ex) {
            ex.printStackTrace();
        } catch (IOException ex) {
            ex.printStackTrace();
        }
    }
}
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Knowledge Centre
What is servlet context?
The servlet context is an interface which helps to communicate with other servlets. It contains information about the Web application and container. It is kind of application environment. Using the context, a servlet can obtain URL references to resources, and store attributes that other servlets in the context can use.
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Reference: Java™ Platform Standard Ed. 7 - API Specification | Java is registered trademark of Oracle.
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