Java ActionMapping.getAttribute方法代碼示例

import org.apache.struts.action.ActionMapping; //導入方法依賴的package包/類
/**
 * <p>Create (if necessary) and return an <code>ActionForm</code> instance appropriate
 * for this request.  If no <code>ActionForm</code> instance is required, return
 * <code>null</code>.</p>
 *
 * @param request The servlet request we are processing
 * @param mapping The action mapping for this request
 * @param moduleConfig The configuration for this module
 * @param servlet The action servlet
 *
 * @return ActionForm instance associated with this request
 */
public static ActionForm createActionForm(
        HttpServletRequest request,
        ActionMapping mapping,
        ModuleConfig moduleConfig,
        ActionServlet servlet) {

    // Is there a form bean associated with this mapping?
    String attribute = mapping.getAttribute();
    if (attribute == null) {
        return (null);
    }

    // Look up the form bean configuration information to use
    String name = mapping.getName();
    FormBeanConfig config = moduleConfig.findFormBeanConfig(name);
    if (config == null) {
        log.warn("No FormBeanConfig found under '" + name + "'");
        return (null);
    }

    ActionForm instance = lookupActionForm(request, attribute, mapping.getScope());

    // Can we recycle the existing form bean instance (if there is one)?
    try {
        if (instance != null && canReuseActionForm(instance, config)) {
            return (instance);
        }
    } catch(ClassNotFoundException e) {
        log.error(servlet.getInternal().getMessage("formBean", config.getType()), e);
        return (null);
    }

    return createActionForm(config, servlet);
}
 

import org.apache.struts.action.ActionMapping; //導入方法依賴的package包/類
/**
 * Returns the Validation key
 *
 * @param mapping The mapping used to select this instance
 * @param request The servlet request we are processing
 * @return validation key to use
 */
public String getValidationKey(ActionMapping mapping,
                               HttpServletRequest request) {

    String validationKey = null;

    if (isPathValidation()) {

        // Get the path replacing any slashes by underscore
        validationKey = mapping.getPath();

        // Remove any leading slash
        if (validationKey.charAt(0) == '/') {
            validationKey = validationKey.substring(1);
        }

        // Replace any slashes by underscore
        if (validationKey.indexOf("/") > 0) {
            validationKey = validationKey.replace('/', '_');
        }

    } else {

        validationKey = mapping.getAttribute();

    }

    if (logger.isDebugEnabled()) {
        logger.debug("Validating ActionForm '" + mapping.getName() +
                     "' using key '" + validationKey + 
                     "' for mapping '" + mapping.getPath() + "'");
    }


    return validationKey;

}
 

import org.apache.struts.action.ActionMapping; //導入方法依賴的package包/類
/**
 * Returns the Validation key.
 *
 * @param mapping The mapping used to select this instance
 * @param request The servlet request we are processing
 * @return validation key - the form element's name in this case
 */
public String getValidationKey(ActionMapping mapping,
                               HttpServletRequest request) {

    return mapping.getAttribute();
}