spring RegistrationBean 源码
springboot RegistrationBean 代码
文件路径：/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/web/servlet/RegistrationBean.java
/*
* Copyright 2012-2022 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.ServletContext;
import jakarta.servlet.ServletException;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.core.Ordered;
import org.springframework.util.StringUtils;
/**
* Base class for Servlet 3.0+ based registration beans.
*
* @author Phillip Webb
* @since 1.4.0
* @see ServletRegistrationBean
* @see FilterRegistrationBean
* @see DelegatingFilterProxyRegistrationBean
* @see ServletListenerRegistrationBean
*/
public abstract class RegistrationBean implements ServletContextInitializer, Ordered {
private static final Log logger = LogFactory.getLog(RegistrationBean.class);
private int order = Ordered.LOWEST_PRECEDENCE;
private boolean enabled = true;
@Override
public final void onStartup(ServletContext servletContext) throws ServletException {
String description = getDescription();
if (!isEnabled()) {
logger.info(StringUtils.capitalize(description) + " was not registered (disabled)");
return;
}
register(description, servletContext);
}
/**
* Return a description of the registration. For example "Servlet resourceServlet"
* @return a description of the registration
*/
protected abstract String getDescription();
/**
* Register this bean with the servlet context.
* @param description a description of the item being registered
* @param servletContext the servlet context
*/
protected abstract void register(String description, ServletContext servletContext);
/**
* Flag to indicate that the registration is enabled.
* @param enabled the enabled to set
*/
public void setEnabled(boolean enabled) {
this.enabled = enabled;
}
/**
* Return if the registration is enabled.
* @return if enabled (default {@code true})
*/
public boolean isEnabled() {
return this.enabled;
}
/**
* Set the order of the registration bean.
* @param order the order
*/
public void setOrder(int order) {
this.order = order;
}
/**
* Get the order of the registration bean.
* @return the order
*/
@Override
public int getOrder() {
return this.order;
}
}
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- 本文标签： Spring Boot Java Spring
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