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();
}
}