spring FreeMarkerViewResolver 源码
spring FreeMarkerViewResolver 代码
文件路径：/spring-webmvc/src/main/java/org/springframework/web/servlet/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.servlet.view.freemarker;
import org.springframework.web.servlet.view.AbstractTemplateViewResolver;
import org.springframework.web.servlet.view.AbstractUrlBasedView;
/**
* 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;
}
@Override
protected AbstractUrlBasedView instantiateView() {
return (getViewClass() == FreeMarkerView.class ? new FreeMarkerView() : super.instantiateView());
}
}
相关信息
相关文章
0
赞
热门推荐
-
2、 - 优质文章
-
3、 gate.io
-
8、 golang
-
9、 openharmony
-
10、 Vue中input框自动聚焦