HttpURLConnection(二)

package com.cmy.urlcon;

import java.io.BufferedReader;

import java.io.InputStream;

import java.io.InputStreamReader;

import java.io.OutputStream;

import java.io.OutputStreamWriter;

import java.io.Reader;

import java.net.HttpURLConnection;

import java.net.URL;

import java.net.URLConnection;

public class HttpURLConnectionDemo {

    public static void main(String[] args) throws Exception {

        // crwyUrl();

        //getURLData1();

        //getURLData2();

        urlSupportType();

    }

    public static void crwyUrl() throws Exception {

        URL url = new URL(

                "http://blog.csdn.net/a9529lty/article/details/6454145");

        Object obj = url.getContent();

        System.out.println(url.getContent());

        System.out.println(obj.getClass().getName());

        HttpURLConnection con = (HttpURLConnection) url.openConnection();

        Reader read = new InputStreamReader(url.openStream());

        URLConnection urlConnection = url.openConnection();

        InputStream in = urlConnection.getInputStream();

        int c;

        while ((c = in.read()) != -1) {

            System.out.print((char) c);

        }

        url.getAuthority();

    }

    public static void getURLData1() throws Exception {

        URL url = new URL(

                "http://lavasoft.blog.51cto.com/attachment/200811/200811271227767778082.jpg");

        Object obj = url.getContent();

        System.out.println("getURLData1获取指定资源: " + obj.getClass().getName());

    }

    public static void getURLData2() throws Exception {

        URL url = new URL(

                "http://blog.csdn.net/chenzheng_java/article/details/6248090");

        URLConnection con = url.openConnection();

        InputStream in = con.getInputStream();

        int c;

        while ((c = in.read()) != -1) {

            System.out.print((char) c);

        }

        in.close();

    }

    public static void getURLData3() throws Exception {

        URL url = new URL(

                "http://blog.csdn.net/chenzheng_java/article/details/6248090");

        InputStream in = url.openStream();

        int c;

        while ((c = in.read()) != -1) {

            System.out.print((char) c);

        }

        in.close();

    }

    public static void urlSupportType() throws Exception {

        String host = "www.java2s.com";

        String file = "/index.html";

        String[] schemes = { "http", "https", "ftp", "mailto", "telnet",

                "file", "ldap", "gopher", "jdbc", "rmi", "jndi", "jar", "doc",

                "netdoc", "nfs", "verbatim", "finger", "daytime",

                "systemresource" };

        for (int i = 0; i < schemes.length; i++) {

            try {

                URL u = new URL(schemes[i], host, file);

                System.out.println(schemes + " is supported\r\n");

            } catch (Exception ex) {

                System.out.println(schemes + " is not supported\r\n");

            }

        }

    }

    /**

     * HttpURLConnection getMethod

     * @return

     * @throws Exception

     */

    public static String urlDoGet() throws Exception{

        URL url = new URL("http://localhost:8080/OneHttpServer/");

        HttpURLConnection con = (HttpURLConnection)url.openConnection();

        con.setRequestProperty("Accept-Charset","utf-8");

        con.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");

        con.setConnectTimeout(3000);

        con.setDoInput(true);

        con.setDoOutput(true);

        con.setUseCaches(false);

        String cookie0 = con.getHeaderField("Set-Cookie");

        InputStream inputStream = null;

        InputStreamReader inputStreamReader = null;

        BufferedReader bfReader = null;

        StringBuffer sb = new StringBuffer();

        String readLine = null;

        if(con.getResponseCode() >= 300){

            throw new Exception("HTTP Request is not success, Response code is " + con.getResponseCode());

        }

        try {

            inputStream = con.getInputStream();

            inputStreamReader = new InputStreamReader(inputStream);

            bfReader = new BufferedReader(inputStreamReader);

            while((readLine = bfReader.readLine()) != null){

                sb.append(readLine);

            }

        } catch (Exception e) {

            e.printStackTrace();

        }finally{

            bfReader.close();

            inputStreamReader.close();

            inputStream.close();

        }

        return sb.toString();

    }

    /**

     * HttpURLConnection postMethod

     * @return

     * @throws Exception

     */

    public static String urlDoPost() throws Exception{

        URL url = new URL("http://localhost:8080/OneHttpServer/");

        HttpURLConnection con = (HttpURLConnection)url.openConnection();

        String parameterData = "username=nickhuang&blog=http://www.cnblogs.com/nick-huang/";

        con.setRequestProperty("Accept-Charset","utf-8");

        con.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");

        con.setConnectTimeout(3000);

        con.setDoInput(true);

        con.setDoOutput(true);

        con.setUseCaches(false);

        String cookie0 = con.getHeaderField("Set-Cookie");

        OutputStream outputStream = null;

        OutputStreamWriter outputStreamWriter = null;

        InputStream inputStream = null;

        InputStreamReader inputStreamReader = null;

        BufferedReader bfReader = null;

        StringBuffer sb = new StringBuffer();

        String readLine = null;

        try {

            outputStream = con.getOutputStream();

            outputStreamWriter = new OutputStreamWriter(outputStream);

            outputStreamWriter.write(parameterData.toString());

            outputStreamWriter.flush();

        } catch (Exception e) {

            // TODO: handle exception

        }

        if(con.getResponseCode() >= 300){

            throw new Exception("HTTP Request is not success, Response code is " + con.getResponseCode());

        }

        try {

            inputStream = con.getInputStream();

            inputStreamReader = new InputStreamReader(inputStream);

            bfReader = new BufferedReader(inputStreamReader);

            while((readLine = bfReader.readLine()) != null){

                sb.append(readLine);

            }

        } catch (Exception e) {

            e.printStackTrace();

        }finally{

            outputStreamWriter.close();

            outputStream.close();

            bfReader.close();

            inputStreamReader.close();

            inputStream.close();

        }

        return sb.toString();

    }

}