从字符串中提取子字符串

时间:2012-09-07 08:26:46

标签: java regex string

我有以下字符串:

mac1: 00:11:22:33:44:55
mac2: 66:77:88:99:00:11
model: PI-504
first_name: any_name
device_type: baseboard
serial_number: 668778542298745210

我想将所有值提取到数组中。如何用Java做到这一点?

public String[] getvaluesIntoStringArray(String str) {
    ....
}

6 个答案:

答案 0 :(得分:2)

您可以使用regular expressions

private static final Pattern PATTERN = Pattern.compile(".*?:(.*)");

public static String[] getvaluesIntoStringArray(String str) {
    Matcher matcher = PATTERN.matcher(str);
    List<String> values = new ArrayList<String>();
    while (matcher.find())
        values.add(matcher.group(1).trim());
    return values.toArray(new String[values.size()]);
}

答案 1 :(得分:1)

如果你想拆分新行,那么我认为应该这样做

public String[] getvaluesIntoStringArray(String str) {
    return str.split("\\r?\\n");
}

答案 2 :(得分:0)

使用此正则表达式(?<=:\s)(.+$) 如果您的正则表达式引擎不支持lookbehind使用此正则表达式(:\s)(.+$)匹配将在第2组

p.s。:使用带有正则表达式选项MultyLine

的正则表达式

答案 3 :(得分:0)

String str = "mac1: 00:11:22:33:44:55
mac2: 66:77:88:99:00:11
model: PI-504
first_name: any_name
device_type: baseboard
serial_number: 668778542298745210";

String[] tempArr = str.split("\n");

此tempArr应包含值为mac1:00:11:22:33:44:55,mac2:66:77:88:99:00:11,型号:PI-504,first_name:any_name,device_type: baseboard,serial_number:668778542298745210

答案 4 :(得分:0)

请尝试

String[] result = str.split("\n");    

答案 5 :(得分:0)

这里代码:

public static void main(String[] args) {
        List<String> result = new ArrayList<String>();

        String str = "mac1: 00:11:22:33:44:55\n" +
                     "mac2: 66:77:88:99:00:11\n" +
                     "model: PI-504\n" +
                     "first_name: any_name\n" +
                     "device_type: baseboard\n" +
                     "serial_number: 668778542298745210";

        Pattern pattern = Pattern.compile("^.*?:(.*)$", Pattern.MULTILINE);
        Matcher matcher = pattern.matcher(str);
        boolean find = matcher.find();
        while(find) {
            result.add(matcher.group(1));
            find = matcher.find();
        }
        System.out.print(result);
    }