spring security EnableGlobalAuthentication 源码

spring security EnableGlobalAuthentication 代码

文件路径：/config/src/main/java/org/springframework/security/config/annotation/authentication/configuration/EnableGlobalAuthentication.java

/*
 * Copyright 2002-2022 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.security.config.annotation.authentication.configuration;

import java.lang.annotation.Documented;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

import org.springframework.context.annotation.Import;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.method.configuration.EnableGlobalMethodSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.servlet.configuration.EnableWebMvcSecurity;

/**
 * The {@link EnableGlobalAuthentication} annotation signals that the annotated class can
 * be used to configure a global instance of {@link AuthenticationManagerBuilder}. For
 * example:
 *
 * <pre class="code">
 * &#064;Configuration
 * &#064;EnableGlobalAuthentication
 * public class MyGlobalAuthenticationConfiguration {
 *
 * 	&#064;Bean
 * 	public UserDetailsService userDetailsService() {
 * 		UserDetails user = User.withDefaultPasswordEncoder()
 * 			.username(&quot;user&quot;)
 * 			.password(&quot;password&quot;)
 * 			.roles(&quot;USER&quot;)
 * 			.build();
 * 		UserDetails admin = User.withDefaultPasswordEncoder()
 * 			.username(&quot;admin&quot;)
 * 			.password(&quot;password&quot;)
 * 			.roles(&quot;ADMIN&quot;, &quot;USER&quot;)
 * 			.build();
 * 		return new InMemoryUserDetailsManager(user, admin);
 * 	}
 * }
 * </pre>
 *
 * Annotations that are annotated with {@link EnableGlobalAuthentication} also signal that
 * the annotated class can be used to configure a global instance of
 * {@link AuthenticationManagerBuilder}. For example:
 *
 * <pre class="code">
 * &#064;Configuration
 * &#064;EnableWebSecurity
 * public class MyWebSecurityConfiguration {
 *
 * 	&#064;Bean
 * 	public UserDetailsService userDetailsService() {
 * 		UserDetails user = User.withDefaultPasswordEncoder()
 * 			.username(&quot;user&quot;)
 * 			.password(&quot;password&quot;)
 * 			.roles(&quot;USER&quot;)
 * 			.build();
 * 		UserDetails admin = User.withDefaultPasswordEncoder()
 * 			.username(&quot;admin&quot;)
 * 			.password(&quot;password&quot;)
 * 			.roles(&quot;ADMIN&quot;, &quot;USER&quot;)
 * 			.build();
 * 		return new InMemoryUserDetailsManager(user, admin);
 * 	}
 *
 * 	// Possibly more bean methods ...
 * }
 * </pre>
 *
 * The following annotations are annotated with {@link EnableGlobalAuthentication}
 *
 * <ul>
 * <li>{@link EnableWebSecurity}</li>
 * <li>{@link EnableWebMvcSecurity}</li>
 * <li>{@link EnableGlobalMethodSecurity}</li>
 * </ul>
 *
 * Configuring {@link AuthenticationManagerBuilder} in a class without the
 * {@link EnableGlobalAuthentication} annotation has unpredictable results.
 *
 * @see EnableWebMvcSecurity
 * @see EnableWebSecurity
 * @see EnableGlobalMethodSecurity
 *
 * @author Rob Winch
 *
 */
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.TYPE)
@Documented
@Import(AuthenticationConfiguration.class)
public @interface EnableGlobalAuthentication {

}

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