package com.Test2;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import java.net.*;
import java.io.*;
import java.util.regex.*;
/*
根据指定的规则，通过构造正则表达式获取网址
*/
public class Urls {
private String startUrl; //开始采集网址
String urlContent;
String ContentArea;
private String strAreaBegin, strAreaEnd; //采集区域开始采集字符串和结束采集字符串
private String stringInUrl, stringNotInUrl;
String strContent;//获得的采集内容
String[] allUrls; //采集到的所有网址
private String regex; //采集规则
UrlAndTitle urlAndTitle = new UrlAndTitle(); //存储网址和标题
public static void main(String[] args) {
Urls myurl = new Urls("<body", "/body>");
myurl.getStartUrl("http://www.qidian.com/");
myurl.getUrlContent();
myurl.getContentArea();
myurl.getStringInUrl("http://www.qidian.com/");
myurl.getStringNotInUrl("google");
myurl.Urls();
// System.out.println("startUrl:"+myurl.startUrl);
// System.out.println("urlcontent:"+myurl.urlContent);
// System.out.println("ContentArea:"+myurl.ContentArea);
}
//初始化构造函数 strAreaBegin 和strAreaEnd
public Urls(String strAreaBegin, String strAreaEnd) {
this.strAreaBegin = strAreaBegin;
this.strAreaEnd = strAreaEnd;
}
//
public void Urls() {
int i = 0;
//String regex ="<a href="?''?http://[a-zA-Z0-9]+\.[a-zA-Z0-9]+\.[a-zA-Z]+/?[\.?[\S|\s]]+[a>]$";
String regex = "<a.*?/a>";
//String regex ="http://.*?>";
Pattern pt = Pattern.compile(regex);
Matcher mt = pt.matcher(ContentArea);
while (mt.find()) {
System.out.println(mt.group());
i++;
//获取标题
Matcher title = Pattern.compile(">.*?</a>").matcher(mt.group());
while (title.find()) {
System.out.println("标题:"
+ title.group().replaceAll(">|</a>", ""));
}
//获取网址
Matcher myurl = Pattern.compile("href=.*?>").matcher(mt.group());
while (myurl.find()) {
System.out.println("网址:"
+ myurl.group().replaceAll("href=|>", ""));
}
System.out.println();
}
System.out.println("共有" + i + "个符合结果");
}
//获得开始采集网址
public void getStartUrl(String startUrl) {
this.startUrl = startUrl;
}
//获得网址所在内容;
public void getUrlContent() {
StringBuffer is = new StringBuffer();
try {
URL myUrl = new URL(startUrl);
BufferedReader br = new BufferedReader(new InputStreamReader(myUrl
.openStream()));
String s;
while ((s = br.readLine()) != null) {
is.append(s);
}
urlContent = is.toString();
} catch (Exception e)
{
System.out.println("网址文件未能输出");
e.printStackTrace();
}
}
//获得网址所在的匹配区域部分
public void getContentArea() {
int pos1 = 0, pos2 = 0;
pos1 = urlContent.indexOf(strAreaBegin) + strAreaBegin.length();
pos2 = urlContent.indexOf(strAreaEnd, pos1);
ContentArea = urlContent.substring(pos1, pos2);
}
//以下两个函数获得网址应该要包含的关键字及不能包含的关键字
//这里只做初步的实验。后期，保护的关键字及不能包含的关键字应该是不只一个的。
public void getStringInUrl(String stringInUrl) {
this.stringInUrl = stringInUrl;
}
public void getStringNotInUrl(String stringNotInUrl) {
this.stringNotInUrl = stringNotInUrl;
}
//获取采集规则
//获取url网址
public void getUrl() {
}
public String getRegex() {
return regex;
}
class UrlAndTitle {
String myURL;
String title;
}
}
