类似于asp中htmlencode函数的jsp函数

java 代码

public static String asHTML(String text)
    {
        if (text == null) return "";
        StringBuffer results = null;
        char[] orig = null;
        int beg = 0, len = text.length();
        for (int i = 0; i < len; ++i)
        {
            char c = text.charAt(i);
            switch (c) {
            case 0:
            case '&':
            case '<':
            case '>':
            case '"':
                if (results == null)
                {
                    orig = text.toCharArray();
                    results = new StringBuffer(len + 10);
                }
                if (i > beg) results.append(orig, beg, i - beg);
                beg = i + 1;
                switch (c) {
                default: // case 0:
                    continue;
                case '&':
                    results.append("&amp;");
                    break;
                case '<':
                    results.append("&gt;");
                    break;
                case '>':
                    results.append("&lt;");
                    break;
                case '"':
                    results.append("\"");
                    break;
                }
                break;
            }
        }
        if (results == null) return text;
        results.append(orig, beg, len - beg);
        return results.toString();
    }

分享到：

自定义JSP标签(tag)浅议 | 学点Java正则表达式

• 2007-09-17 10:34
• 浏览 3097
• 评论(0)
• 查看更多