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  • 【Java学习笔记】读取URL

    作者:gnuhpc
    出处:http://www.cnblogs.com/gnuhpc/

    import java.net.URL;
    import java.io.InputStream;
    import java.io.InputStreamReader;
    import java.io.BufferedReader;
    import java.io.IOException;
    public class ReadUrl1 {
        public static void main(String arg[]) {
            String str;
            try {
    URL url = new URL("http://www.sohu.com/");
                InputStream is = url.openStream();
                InputStreamReader isr = new InputStreamReader(is);
                BufferedReader br = new BufferedReader(isr);
                while((str = br.readLine()) != null)
                    System.out.println(str);
                br.close();
            } catch(IOException e) {
                System.out.println(e);
            }
        }
    }

    另一种方法:

    import java.net.URL;
    import java.net.URLConnection;
    import java.io.InputStream;
    import java.io.InputStreamReader;
    import java.io.BufferedReader;
    import java.io.IOException;
    public class ReadUrl2 {
        public static void main(String arg[]) {
            String str;
            try {
                URL url = new URL("http://www.sohu.com/");
                URLConnection uc = url.openConnection();
                InputStream is = uc.getInputStream();
                InputStreamReader isr = new InputStreamReader(is);
                BufferedReader br = new BufferedReader(isr);
                while((str = br.readLine()) != null)
                    System.out.println(str);
                br.close();
            } catch(IOException e) {
                System.out.println(e);
            }
        }
    }

    还可以设置代理:

    import java.net.URL;
    import java.net.URLConnection;
    import java.io.InputStream;
    import java.io.InputStreamReader;
    import java.io.BufferedReader;
    import java.io.IOException;
    import java.util.Properties;
    public class ReadUrl3 {
        public static void main(String arg[]) {
            String str;
            Properties props = System.getProperties();
            props.setProperty("proxySet","true");
            props.setProperty("proxyPort","8080");
            props.setProperty("proxyHost","proxy");
            try {
                URL url = new URL("http://www.sohu.com/");
                URLConnection uc = url.openConnection();
                InputStream is = uc.getInputStream();
                InputStreamReader isr = new InputStreamReader(is);
                BufferedReader br = new BufferedReader(isr);
                while((str = br.readLine()) != null)
                    System.out.println(str);
                br.close();
            } catch(IOException e) {
                System.out.println(e);
            }
        }
    }

    作者:gnuhpc
    出处:http://www.cnblogs.com/gnuhpc/

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  • 原文地址:https://www.cnblogs.com/gnuhpc/p/2822293.html
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