Java判斷是否包含中文/中文字符

判斷是否有中文或者字符，其實可以用正則表達式判斷； 這裏直接用代碼判斷：

	//判斷是否有中文/中文字符
    private static final JSONObject isChinese(String c) {
        JSONObject object = null;
        int i = 0;
        boolean flag = false;
        for (char c1 : c.toCharArray()) {
            i++;
            Character.UnicodeBlock ub = Character.UnicodeBlock.of(c1);
            if (ub == Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS
                    || ub == Character.UnicodeBlock.CJK_COMPATIBILITY_IDEOGRAPHS
                    || ub == Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS_EXTENSION_A
                    || ub == Character.UnicodeBlock.GENERAL_PUNCTUATION
                    || ub == Character.UnicodeBlock.CJK_SYMBOLS_AND_PUNCTUATION
                    || ub == Character.UnicodeBlock.HALFWIDTH_AND_FULLWIDTH_FORMS) {
                flag = true;
            }
            if (!flag && c1 >= 0x4E00 && c1 <= 0x9FA5) {
                flag = true;
            }
            if (flag) {
                object = new JSONObject();
                object.put("i", i);//第幾個有問題
                object.put("val", c1);//有問題的值
                return object;
            }
        }
        return object;
    }


//調用
		//判斷是否有中文數據
        JSONObject chinese = null;
        if ((chinese = isChinese(param.getpVal())) != null) {
            return AjaxResult.err("第" + chinese.getString("i") + "個爲中文/中文字符(" + chinese.getString("val") + ")，請檢查！");
        }