如何匹配字符串包含[后接大于0的任何数字？

Question

我正在尝试匹配包含 [和后跟数字大于0 的字符串。

例如，我的正则表达式模式应匹配以下字符串：

  

Sample.3cb11b [1] .books.addressDetail.addrDetail2
  Sample.3cb11b [28] .books.addressDetail.addrDetail2

并且不应该匹配

  

Sample.3cb11b [0] .books.addressDetail.addrDetail2

我尝试过类似".*\\[[1-9].*"之类的事情。

Answer 1

我已经尝试过此正则表达式，并且看来可行：

^([a-zA-Z0-9]*).([0-9a-z]*)(\[[1-9][0-9]*?\])(.[a-zA-Z0-9]*){3}  // this is very exact, maybe too much

.*\[[1-9][0-9]*\].*  // this seems to also work, but only cares about the 'greater than 0' part 

这是regex tester的链接。

Answer 2

怎么样：.*\[0*[1-9][0-9]*\].*？

简单的测试程序：

    String[] lines = {
        "Sample.3cb11b[1].books.addressDetail.addrDetail2",
        "Sample.3cb11b[28].books.addressDetail.addrDetail2",
        "Sample.3cb11b[0].books.addressDetail.addrDetail2"};
    for (String line: lines) {
        System.out.println(line + ": "
                + line.matches(".*\\[0*[1-9][0-9]*\\].*"));
    }