spring FreeMarkerViewResolver 源码
spring FreeMarkerViewResolver 代码
文件路径：/spring-webflux/src/main/java/org/springframework/web/reactive/result/view/freemarker/FreeMarkerViewResolver.java
/*
* Copyright 2002-2020 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.reactive.result.view.freemarker;
import org.springframework.web.reactive.result.view.AbstractUrlBasedView;
import org.springframework.web.reactive.result.view.UrlBasedViewResolver;
/**
* A {@code ViewResolver} for resolving {@link FreeMarkerView} instances, 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 {@link UrlBasedViewResolver} for details.
*
* @author Rossen Stoyanchev
* @since 5.0
*/
public class FreeMarkerViewResolver extends UrlBasedViewResolver {
/**
* Simple constructor.
*/
public FreeMarkerViewResolver() {
setViewClass(requiredViewClass());
}
/**
* Convenience constructor with a prefix and suffix.
* @param suffix the suffix to prepend view names with
* @param prefix the prefix to prepend view names with
*/
public FreeMarkerViewResolver(String prefix, String suffix) {
setViewClass(requiredViewClass());
setPrefix(prefix);
setSuffix(suffix);
}
/**
* Requires {@link FreeMarkerView}.
*/
@Override
protected Class<?> requiredViewClass() {
return FreeMarkerView.class;
}
@Override
protected AbstractUrlBasedView instantiateView() {
return (getViewClass() == FreeMarkerView.class ? new FreeMarkerView() : super.instantiateView());
}
}
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