[英]Match everything after and before something regex Java
這是我的代碼:
String stringToSearch = "https://example.com/excludethis123456/moretext";
Pattern p = Pattern.compile("(?<=.com\\/excludethis).*\\/"); //search for this pattern
Matcher m = p.matcher(stringToSearch); //match pattern in StringToSearch
String store= "";
// print match and store match in String Store
if (m.find())
{
String theGroup = m.group(0);
System.out.format("'%s'\n", theGroup);
store = theGroup;
}
//repeat the process
Pattern p1 = Pattern.compile("(.*)[^\\/]");
Matcher m1 = p1.matcher(store);
if (m1.find())
{
String theGroup = m1.group(0);
System.out.format("'%s'\n", theGroup);
}
我想匹配excludethis
之后和/
之后的所有內容。
使用"(?<=.com\\\\/excludethis).*\\\\/"
正則表達式,我將匹配123456/
並將其存儲在String store
。 之后用"(.*)[^\\\\/]"
排除/
並得到123456
。
我可以在一行中執行此操作,即將這兩個正則表達式合並嗎? 我不知道如何合並它們。
這可能對您有用:)
String stringToSearch = "https://example.com/excludethis123456/moretext";
Pattern pattern = Pattern.compile("excludethis([\\d\\D]+?)/");
Matcher matcher = pattern.matcher(stringToSearch);
if (matcher.find()) {
String result = matcher.group(1);
System.out.println(result);
}
就像您使用正面的外觀一樣,您可以使用正面的外觀並將正則表達式更改為此,
(?<=.com/excludethis).*(?=/)
另外,在Java中,您無需轉義/
您修改的代碼,
String stringToSearch = "https://example.com/excludethis123456/moretext";
Pattern p = Pattern.compile("(?<=.com/excludethis).*(?=/)"); // search for this pattern
Matcher m = p.matcher(stringToSearch); // match pattern in StringToSearch
String store = "";
// print match and store match in String Store
if (m.find()) {
String theGroup = m.group(0);
System.out.format("'%s'\n", theGroup);
store = theGroup;
}
System.out.println("Store: " + store);
打印,
'123456'
Store: 123456
就像您想抓住價值一樣。
如果您不想使用regex
, regex
可以嘗試使用String::substring
*
String stringToSearch = "https://example.com/excludethis123456/moretext";
String exclusion = "excludethis";
System.out.println(stringToSearch.substring(stringToSearch.indexOf(exclusion)).substring(exclusion.length(), stringToSearch.substring(stringToSearch.indexOf(exclusion)).indexOf("/")));
輸出:
123456
* 絕對不要實際使用
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