jstring.tag

ajax基础操作实例,无刷添加删除等..

<%@ attribute name="value" required="false" rtexprvalue="true" %>

<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>

<c:if test="${empty value}">
    <jsp:doBody var="value"/>
</c:if>

<%
    String value = (String) jspContext.getAttribute("value");
    out.write('"');
    int len = value.length();
    for (int i = 0; i < len; i++) {
        char ch = value.charAt(i);
        switch (ch) {
            case '\\': out.write("\\\\"); break;
            case '\n': out.write("\\n"); break;
            case '\r': out.write("\\r"); break;
            case '\t': out.write("\\t"); break;
            case '"':  out.write("\\\""); break;
            default: {
                if (' ' <= ch && ch <= '~')
                    out.write(ch);
                else {
                    out.write("\\u");
                    for (int j = 3; j >= 0; j--) {
                        int k = (((int) ch) >> (j << 2)) & 0x0f;
                        out.write((char) (k < 10 ? k + 48 : k + 55));
                    }
                }
            }
        }
    }
    out.write('"');
%>