spring DispatcherServletPath 源码
springboot DispatcherServletPath 代码
文件路径：/spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/web/servlet/DispatcherServletPath.java
/*
* Copyright 2012-2019 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.autoconfigure.web.servlet;
import org.springframework.boot.web.servlet.ServletRegistrationBean;
import org.springframework.web.servlet.DispatcherServlet;
/**
* Interface that can be used by auto-configurations that need path details for the
* {@link DispatcherServletAutoConfiguration#DEFAULT_DISPATCHER_SERVLET_REGISTRATION_BEAN_NAME
* default} {@link DispatcherServlet}.
*
* @author Madhura Bhave
* @author Stephane Nicoll
* @since 2.0.4
*/
@FunctionalInterface
public interface DispatcherServletPath {
/**
* Returns the configured path of the dispatcher servlet.
* @return the configured path
*/
String getPath();
/**
* Return a form of the given path that's relative to the dispatcher servlet path.
* @param path the path to make relative
* @return the relative path
*/
default String getRelativePath(String path) {
String prefix = getPrefix();
if (!path.startsWith("/")) {
path = "/" + path;
}
return prefix + path;
}
/**
* Return a cleaned up version of the path that can be used as a prefix for URLs. The
* resulting path will have path will not have a trailing slash.
* @return the prefix
* @see #getRelativePath(String)
*/
default String getPrefix() {
String result = getPath();
int index = result.indexOf('*');
if (index != -1) {
result = result.substring(0, index);
}
if (result.endsWith("/")) {
result = result.substring(0, result.length() - 1);
}
return result;
}
/**
* Return a URL mapping pattern that can be used with a
* {@link ServletRegistrationBean} to map the dispatcher servlet.
* @return the path as a servlet URL mapping
*/
default String getServletUrlMapping() {
if (getPath().equals("") || getPath().equals("/")) {
return "/";
}
if (getPath().contains("*")) {
return getPath();
}
if (getPath().endsWith("/")) {
return getPath() + "*";
}
return getPath() + "/*";
}
}
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- 本文标签： Java Spring Spring Boot
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