java程序请求Http请求,返回其网页源文件,xml 等都可以返回

package com.sun.test;

import java.io.BufferedReader;

import java.io.IOException;

import java.io.InputStreamReader;

import .MalformedURLException;

import .URL;

import javax.swing.JFrame;

public class Resol extends JFrame {

// 读取url对象所引用的web页

public void readPage(URL url) {

BufferedReader reader = null;

String line;

StringBuffer str = new StringBuffer();

try {

// 获取url输入流

reader = new BufferedReader(new InputStreamReader(url.openStream()));

// 读取一行，并添加至tPage中

while ((line = reader.readLine()) != null)

str.append(line);

} catch (IOException ie) {

} finally {

try {

if (reader != null)

reader.close();

} catch (Exception e) {

}

}

System.out.println(str.toString());

}

public static void main(String[] args) {

Resol me = new Resol();

try {

me.readPage(new URL("")); } catch (MalformedURLException e) {

e.printStackTrace();

}

}

}