我想在线阅读文本文件,然后检查文本文件第一行内的布尔值。我正在使用它来检查应用程序的更新。
这是一个想法 -
public static boolean needsUpdate()
{
URL url;
boolean needs = false;
try
{
url = new URL("https://github.com/../../blob/master/update.txt");
Scanner s = new Scanner(url.openStream());
boolean getUpdate = s.hasNextBoolean();
if (getUpdate = true)
{
needs = true;
}
else
{
needs = false;
}
}
catch (IOException e)
{
e.printStackTrace();
}
return needs;
}
文件中的文字为update = false
或update = true
。
答案 0 :(得分:2)
这样做:
try {
URL url = new URL("https://github.com/../../blob/master/update.txt");
Scanner s = new Scanner(url.openStream());
String text = s.nextLine();
s.close();
text = text.replaceAll("update = ", "");
Boolean getUpdate = Boolean.parseBoolean(text);
//do something with the boolean
} catch(Exception ex) {
ex.printStackTrace();
}