正则表达式匹配key-value

1.先把字符串进行匹配

2.从字符串中得到想要的值

  public void testRegex() {
        String msg = "Rect(x1="0" y1="0" x2="416" y2="416")Rect(x1="1" y1="2" x2="413" y2="414")";
        List<String> textList = new ArrayList<String>();
        Pattern pattern = Pattern.compile("(x1="[^"]*"s*y1="[^"]*"s*x2="[^"]*"s*y2="[^"]*")");
        Matcher matcher = pattern.matcher(msg);
        while (matcher.find()) {
            textList.add(matcher.group(1));
        }
        for (String text : textList) {
            try {
                System.out.println(text);
                System.out.println(getValue(text,"x1"));
                System.out.println(getValue(text,"y1"));
                System.out.println(getValue(text,"x2"));
                System.out.println(getValue(text,"y2"));
            }
            catch (Exception ex)
            {}
        }
    }

    public static String getValue(String source,String key) {
        if (isEmpty(source)) {
            return null;
        }

        Pattern p = Pattern.compile("b" + key + "s*=s*"([^"]*)"");
        Matcher m = p.matcher(source);
        if (m.find()) {
            return m.group(1);
        }
        return null;
    }
    public static boolean isEmpty(String str) {
        return str == null || str.length() == 0;
    }

注意，匹配到的字符串并不含括号，如果想要匹配括号，那么应该这么写

Pattern pattern = Pattern.compile("((x1="[^"]*"s*y1="[^"]*"s*x2="[^"]*"s*y2="[^"]*"))");

（编辑：李大同）

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