检测URL是否真实有效

shang222

于 2011-09-26 15:13:07 发布

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分类专栏： java 文章标签： java url 有效存在

本文链接：https://blog.youkuaiyun.com/shang222/article/details/84039553

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import java.net.URL;
import java.net.HttpURLConnection;

public class test2 {
    private boolean isConnect(String url) {
        boolean flag = false;
        int counts = 0;
        if (url == null || url.length() <= 0) {
            return flag;
        }
        while (counts < 5) {
            try {
                HttpURLConnection connection = (HttpURLConnection) new URL(url).openConnection();
                int state = connection.getResponseCode();
                if (state == 200) {
                    flag = true;
                }
                break;
            } catch (Exception ex) {
                counts++;
                continue;
            }
        }
        return flag;
    }

    public static void main(String[] args) {
    test2 check = new test2();
        System.out.println(check.isConnect ("http://www.baidu.com/cozone/20/34/203441/images/148_60_1.gif"));
    }
}