//找出输入中的一个或多个匹配的字符串。
这里使用的是Mather类的find方法，来查找匹配的内容
package match;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.URL;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import java.util.regex.PatternSyntaxException;
public class HrefMatch {
public static void main(String[] args) throws IOException {
// TODO Auto-generated method stub
try{
String urlString;
if(args.length > 0){
urlString = args[0];
}else{
urlString = "http://java.sun.com";
}
InputStreamReader in = new InputStreamReader(new URL(urlString).openStream());
StringBuilder input = new StringBuilder();
int ch;
while((ch = in.read()) != -1){
input.append((char) ch);
}
String patternString = "<a\\s+href\\s*=\\s*(\"[^\"]*\"|[^\\s>]\\s*>";
//忽略字符串大小写
Pattern pattern = Pattern.compile(patternString, Pattern.CASE_INSENSITIVE);
Matcher matcher = pattern.matcher(input);
while(matcher.find()){
int start = matcher.start();
int end = matcher.end();
String match = input.substring(start, end);
System.out.println(match);
}
}catch(PatternSyntaxException e){
e.printStackTrace();
}
}
}找出输入中的一个或多个匹配的字符串
原文：http://blog.csdn.net/u012965373/article/details/43955113
