spring security SpringWebMvcImportSelector 源码

  • 2022-08-13
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spring security SpringWebMvcImportSelector 代码

文件路径:/config/src/main/java/org/springframework/security/config/annotation/web/configuration/SpringWebMvcImportSelector.java

/*
 * Copyright 2002-2013 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.web.configuration;

import org.springframework.context.annotation.ImportSelector;
import org.springframework.core.type.AnnotationMetadata;
import org.springframework.util.ClassUtils;

/**
 * Used by {@link EnableWebSecurity} to conditionally import
 * {@link WebMvcSecurityConfiguration} when the DispatcherServlet is present on the
 * classpath.
 *
 * @author Rob Winch
 * @since 3.2
 */
class SpringWebMvcImportSelector implements ImportSelector {

	@Override
	public String[] selectImports(AnnotationMetadata importingClassMetadata) {
		if (!ClassUtils.isPresent("org.springframework.web.servlet.DispatcherServlet", getClass().getClassLoader())) {
			return new String[0];
		}
		return new String[] {
				"org.springframework.security.config.annotation.web.configuration.WebMvcSecurityConfiguration" };
	}

}

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