NamespaceTag.java 文件源码

public int doStartTag() throws JspException {

    PortletResponse portletResponse = (PortletResponse) pageContext.getRequest()
        .getAttribute(Constants.PORTLET_RESPONSE);

    String namespace = portletResponse.getNamespace();

    JspWriter writer = pageContext.getOut();

    try {
        writer.print(namespace);
    } catch (IOException ioe) {
        throw new JspException(
            "Unable to write namespace", ioe
        );
    }

    return SKIP_BODY;
}