Question

我有这个问题。

我有以下方法：

    public static Object[] czyDziala(String[] lista) throws IOException {

        for(int i=0 ; i<=lista.length-1;i++){
            URL url = new URL(lista[i]);
            HttpURLConnection httpCon = (HttpURLConnection) url.openConnection();

            int len = httpCon.getContentLength();
            if (len>0){

                System.out.println(url +new String(" Site Work"));

            }else{
                System.out.println(url +"Site Don't Work");

            }
        }
        return null;
    }

方法中的参数是字符串列表。

    JFrame okno = new JFrame();
    okno.setSize(1200, 500);
    okno.setVisible(true);
    okno.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    String [] col = {"Nazwa Witryny"};
    String [] listaWitryn = {"http://www.wp.pl",
                             "http://www.onet.pl","http://mobidev.pl"};


    try {
        Work.czyDziala(listaWitryn);
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
}

如何添加

表

|网站名称|状态|

我认为创建错误的方法？但我可能是错的。

Answer 1

您的代码可能是：

public static Map<String, Boolean> czyDziala(String[] lista) throws IOException {
    Map<String, Boolean> saveInDBList = new HashMap<String, Boolean>();
    for(int i=0 ; i<=lista.length-1;i++){
        URL url = new URL(lista[i]);
        HttpURLConnection httpCon = (HttpURLConnection) url.openConnection();

        int len = httpCon.getContentLength();
        if (len>0){

            System.out.println(url +new String(" Site Work"));
            saveInDBList.put(lista[i], true);
        }else{
            System.out.println(url +"Site Don't Work");
            saveInDBList.put(lista[i], false);

        }
    }
    return saveInDBList;
}

和

String [] col = {"Nazwa Witryny"};
    String [] listaWitryn = {"http://www.wp.pl",
                             "http://www.onet.pl","http://mobidev.pl"};


    try {
        Map<String, Boolean> saveInDBList = Work.czyDziala(listaWitryn);
        //Your Insert DB call
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
}

如何创建添加表的方法

1 个答案: