如何从 url 中提取 id？ Google sheet

Question

我有以下 url。

https://docs.google.com/spreadsheets/d/1mrsetjgfZI2BIypz7SGHMOfHGv6kTKTzY0xOM5c6TXY/edit#gid=1842172258
https://docs.google.com/a/example.com/spreadsheets/d/1mrsetjgfZI2BIypz7SGHMOfHGv6PTKTzY0xOM5c6TXY/edit#gid=1842172258
https://docs.google.com/spreadsheets/d/1mrsetjgfZI2BIypz7SGHMOfHGv6kTKTzY0xOM5c6TXY

Foreach url，我需要将 sheet id: 1mrsetjgfZI2BIypz7SGHMOfHGv6PTKTzY0xOM5c6TXY 提取到 java 字符串中。

我正在考虑使用 split 但它不能适用于所有测试用例：

String string = "https://docs.google.com/spreadsheets/d/1mrsetjgfZI2BIypz7SGHMOfHGv6kTKTzY0xOM5c6TXY/edit#gid=1842172258";
String[] parts = string.split("/");
String res = parts[parts.length-2];
Log.d("hello res",res );

我怎么可能？

Answer 1

看起来您要查找的 ID 总是跟在“/spreadsheets/d/”之后，如果是这种情况，您可以将代码更新为

        String string = "https://docs.google.com/spreadsheets/d/1mrsetjgfZI2BIypz7SGHMOfHGv6kTKTzY0xOM5c6TXY/edit#gid=1842172258";
        String[] parts = string.split("spreadsheets/d/");
        String result;
        if(parts[1].contains("/")){
            String[] parts2 = parts[1].split("/");
            result = parts2[0];
        }
        else{
            result=parts[1];
        }
        System.out.println("hello "+ result);

Answer 2

使用正则表达式

Pattern pattern = Pattern.compile("(?<=\/d\/)[^\/]*");
Matcher matcher = pattern.matcher(url);
System.out.println(matcher.group(1));

使用Java

String result = url.substring(url.indexOf("/d/") + 3);
int slash = result.indexOf("/");
result =  slash == -1 ? result
                      : result.substring(0, slash);
System.out.println(result);

Answer 3

您可以使用正则表达式 \/d\/(.*?)(\/|$) (regex demo) 来解决您的问题，如果您仔细观察，您会发现 ID 存在于 d/ 和 / 之间或end of line 因为你可以得到这之间的一切，检查这个代码演示：

String[] urls = new String[]{
    "https://docs.google.com/spreadsheets/d/1mrsetjgfZI2BIypz7SGHMOfHGv6kTKTzY0xOM5c6TXY/edit#gid=1842172258",
    "https://docs.google.com/a/example.com/spreadsheets/d/1mrsetjgfZI2BIypz7SGHMOfHGv6PTKTzY0xOM5c6TXY/edit#gid=1842172258",
    "https://docs.google.com/spreadsheets/d/1mrsetjgfZI2BIypz7SGHMOfHGv6kTKTzY0xOM5c6TXY"
};

String regex = "\/d\/(.*?)(\/|$)";
Pattern pattern = Pattern.compile(regex);

for (String url : urls) {
    Matcher matcher = pattern.matcher(url);
    while (matcher.find()) {
        System.out.println(matcher.group(1));
    }
}

输出

1mrsetjgfZI2BIypz7SGHMOfHGv6kTKTzY0xOM5c6TXY
1mrsetjgfZI2BIypz7SGHMOfHGv6PTKTzY0xOM5c6TXY
1mrsetjgfZI2BIypz7SGHMOfHGv6kTKTzY0xOM5c6TXY

Answer 4

Google 使用固定长度的字符作为其 ID，在您的情况下它们是 44 个字符，这些字符 google 使用：字母数字、- 和 _ 因此您可以使用此正则表达式：

regex = "([\w-]){44}"
match = re.search(regex,url)

如何从 url 中提取 id？ Google sheet

How to extract id from url ? Google sheet

java

string

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google-sheets-api