Java tutorial
/* * Copyright 2002-2009 the original author or authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * https://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.springframework.web.servlet.view.freemarker; import org.springframework.web.servlet.view.AbstractTemplateViewResolver; /** * Convenience subclass of {@link org.springframework.web.servlet.view.UrlBasedViewResolver} * that supports {@link FreeMarkerView} (i.e. FreeMarker templates) and custom subclasses of it. * * <p>The view class for all views generated by this resolver can be specified * via the "viewClass" property. See UrlBasedViewResolver's javadoc for details. * * <p><b>Note:</b> When chaining ViewResolvers, a FreeMarkerViewResolver will * check for the existence of the specified template resources and only return * a non-null View object if the template was actually found. * * @author Juergen Hoeller * @since 1.1 * @see #setViewClass * @see #setPrefix * @see #setSuffix * @see #setRequestContextAttribute * @see #setExposeSpringMacroHelpers * @see FreeMarkerView */ public class FreeMarkerViewResolver extends AbstractTemplateViewResolver { /** * Sets the default {@link #setViewClass view class} to {@link #requiredViewClass}: * by default {@link FreeMarkerView}. */ public FreeMarkerViewResolver() { setViewClass(requiredViewClass()); } /** * A convenience constructor that allows for specifying {@link #setPrefix prefix} * and {@link #setSuffix suffix} as constructor arguments. * @param prefix the prefix that gets prepended to view names when building a URL * @param suffix the suffix that gets appended to view names when building a URL * @since 4.3 */ public FreeMarkerViewResolver(String prefix, String suffix) { this(); setPrefix(prefix); setSuffix(suffix); } /** * Requires {@link FreeMarkerView}. */ @Override protected Class<?> requiredViewClass() { return FreeMarkerView.class; } }