Question

我正在尝试自动查找页面的所有断开的链接。我在这里看过很多文章，但都没有帮助。我面临的真正问题是我无法得到（撤回）正确的httpresponse代码。以下是代码：

public static int getResponseCode(String urlString) {

    try {
        URL url = new URL(urlString);
        HttpURLConnection connection = (HttpURLConnection)url.openConnection();
        connection.setRequestMethod("GET");
        connection.connect();
        return connection.getResponseCode();

    } catch (Exception e) {

    }
    return -1;
}

Answer 1

使用java无法单独使用此代码获得响应。你需要java selenium驱动程序代码才能实现。

使用以下代码获得正确的回复：

private static int statusCode;
public static void main(String... args) throws IOException{
    WebDriver driver = new FirefoxDriver();
    driver.manage().window().maximize();
    driver.get("https://www.google.com/");
    driver.manage().timeouts().implicitlyWait(10, TimeUnit.SECONDS);

    List<WebElement> links = driver.findElements(By.tagName("a"));
    for(int i = 0; i < links.size(); i++){
        if(!(links.get(i).getAttribute("href") == null) && !(links.get(i).getAttribute("href").equals(""))){
            if(links.get(i).getAttribute("href").contains("http")){
                statusCode= intgetResponseCode(links.get(i).getAttribute("href").trim());
                if(statusCode == 403){
                    System.out.println("HTTP 403 Forbidden # " + i + " " + links.get(i).getAttribute("href"));
                }
            }
        }   
    }   
}


public static int getResponseCode(String urlString) throws MalformedURLException, IOException{
        URL url = new URL(urlString);
    HttpURLConnection huc = (HttpURLConnection)url.openConnection();
    huc.setRequestMethod("GET");
    huc.connect();
    return huc.getResponseCode();
    }

否则，您可以通过将响应方法设置为“HEAD”[如果它是一个简单的测试]来获得响应。

希望它有所帮助。干杯！

Answer 2

以下代码适用于给定的示例网址：

public static int getResponseCode(String urlString) throws IOException {
//      String url = "http://www.google.com/search?q=mkyong";

        String url  = "https://www.google.co.in/intl/en/about.html?fg=1";

        URL obj = new URL(url);
        HttpURLConnection con = (HttpURLConnection) obj.openConnection();

        // optional default is GET
        con.setRequestMethod("GET");

        //add request header
        con.setRequestProperty("User-Agent", "Mozilla/5.0");
        con.connect();

        int responseCode = con.getResponseCode();
        System.out.println("\nSending 'GET' request to URL : " + url);
        System.out.println("Response Code : " + responseCode);

}

我得到的输出：

Sending 'GET' request to URL : https://www.google.co.in/intl/en/about.html?fg=1
Response Code : 200

使用java在Selenium WebDriver中没有获得正确的HTTP响应代码

2 个答案: