JAVA通过url获取网页内容.doc

import java.io.*; import .URL; import .URLConnection; public class TestURL { ????????public static void main(String[] args) throws IOException { ????????????????test4(); ????????????????test3(); ????????????????test2(); ????????????????test(); ????????} ????????/** ???????? * 获取URL指定的资源。 ???????? * ???????? * @throws IOException ???????? */ ????????public static void test4() throws IOException { ????????????????URL url = new URL(/attachment/200811/200811271227767778082.jpg); ????????????????//获得此 URL 的内容。 ????????????????Object obj = url.getContent(); ????????????????System.out.println(obj.getClass().getName()); ????????} ????????/** ???????? * 获取URL指定的资源 ???????? * ???????? * @throws IOException ???????? */ ????????public static void test3() throws IOException { ????????????????URL url = new URL(/down/soft/45.htm); ????????????????//返回一个 URLConnection 对象，它表示到 URL 所引用的远程对象的连接。 ????????????????URLConnection uc = url.openConnection(); ????????????????//打开的连接读取的输入流。 ????????????????InputStream in = uc.getInputStream(); ????????????????int c; ????????????????while ((c = in.read()) != -1) ????????????????????????System.out.print(c); ????????????????in.close(); ????????} ????????/** ???????? * 读取URL指定的网页内容 ???????? * ???????? * @throws IOException ???????? */ ????????public static void test2() throws IOException { ????????????????URL url = new URL(/down/soft/45.htm); ????????????????//打开到此 URL 的连接并返回一个用于从该连接读入的 InputStream。 ????????????????Reader reader = new InputStreamReader(new BufferedInputStream(url.openStream())); ????????????????int c; ????????????????while ((c = reader.read()) != -1) { ????????????????????????System.out.print((char) c); ????????????????} ????????????????reader.close(); ????????} ????????/** ???????? * 获取URL的输入流，并输出 ???????? * ???????? * @throws IOException ???????? */ ????????public static void test() throws IOException { ????????????????URL url = new URL(/62575/120430); ?????????????