在较大的字符串中找不到Java字符串

Question

我尝试做的是列出我的个人浏览历史记录，并根据非常长的域列表进行检查。当在我的历史记录中找到域时，我希望将域打印到文件中。我试过使用String.indexOf（）和String.contains（）方法无济于事。我将使用contains方法发布我目前所拥有的内容。我之前只使用垃圾数据和关键字列表而不是域名，但是当我切换到实际参数而不是我用来测试它时，它只是破坏了。

import java.util.Scanner;
import java.util.ArrayList;
import java.io.*;
public class Comparator {
    public static void main (String[] args) throws Exception{
            File sites = new File("sites.txt");
            File history = new File("history.txt");
            BufferedReader sitesS = new BufferedReader(new FileReader (sites));
            BufferedReader historyS = new BufferedReader(new FileReader (history));
            PrintWriter output = new PrintWriter("output.txt");
            ArrayList<String> historyL = new ArrayList();
            String read = new String("");
            String compare = new String("");
            boolean index = true;
            boolean match = false;

            while ((read = historyS.readLine()) != null) {
                    read = read.toLowerCase();
                    historyL.add(read);
            }
            historyS.close();
            System.out.println("After History is closed.");
            while ((read = sitesS.readLine()) != null) {
                    read = read.toLowerCase();
                    for (int i = 0; i < historyL.size() && match == false; i++) {
                            compare = historyL.get(i).toString();
                            compare = compare.toLowerCase();
                            index = compare.contains(read);
                            System.out.println(index);
                            if (index == true) {
                                    System.out.println("Output should be in the file");
                                    output.println(read);
                                    match = true;
                            }
                    }
                    match = false;
            }
            sitesS.close();
            output.close();
    }
}

编辑：我正在测试的history.txt文件的小片段：http://pastebin.com/Ju4cPv9p sites.txt测试集我正在使用：http://pastebin.com/aiurExWb