spring FilterRegistrationBean 源码
springboot FilterRegistrationBean 代码
文件路径：/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/web/servlet/FilterRegistrationBean.java
/*
* Copyright 2012-2021 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.boot.web.servlet;
import jakarta.servlet.Filter;
import jakarta.servlet.ServletContext;
import org.springframework.util.Assert;
/**
* A {@link ServletContextInitializer} to register {@link Filter}s in a Servlet 3.0+
* container. Similar to the {@link ServletContext#addFilter(String, Filter) registration}
* features provided by {@link ServletContext} but with a Spring Bean friendly design.
* <p>
* The {@link #setFilter(Filter) Filter} must be specified before calling
* {@link #onStartup(ServletContext)}. Registrations can be associated with
* {@link #setUrlPatterns URL patterns} and/or servlets (either by {@link #setServletNames
* name} or via a {@link #setServletRegistrationBeans ServletRegistrationBean}s). When no
* URL pattern or servlets are specified the filter will be associated to '/*'. The filter
* name will be deduced if not specified.
*
* @param <T> the type of {@link Filter} to register
* @author Phillip Webb
* @since 1.4.0
* @see ServletContextInitializer
* @see ServletContext#addFilter(String, Filter)
* @see DelegatingFilterProxyRegistrationBean
*/
public class FilterRegistrationBean<T extends Filter> extends AbstractFilterRegistrationBean<T> {
private T filter;
/**
* Create a new {@link FilterRegistrationBean} instance.
*/
public FilterRegistrationBean() {
}
/**
* Create a new {@link FilterRegistrationBean} instance to be registered with the
* specified {@link ServletRegistrationBean}s.
* @param filter the filter to register
* @param servletRegistrationBeans associate {@link ServletRegistrationBean}s
*/
public FilterRegistrationBean(T filter, ServletRegistrationBean<?>... servletRegistrationBeans) {
super(servletRegistrationBeans);
Assert.notNull(filter, "Filter must not be null");
this.filter = filter;
}
@Override
public T getFilter() {
return this.filter;
}
/**
* Set the filter to be registered.
* @param filter the filter
*/
public void setFilter(T filter) {
Assert.notNull(filter, "Filter must not be null");
this.filter = filter;
}
}
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- 本文标签： Spring Boot Java Spring
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