spring WebClientAutoConfiguration 源码

springboot WebClientAutoConfiguration 代码

文件路径：/spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/web/reactive/function/client/WebClientAutoConfiguration.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.autoconfigure.web.reactive.function.client;

import java.util.stream.Collectors;

import org.springframework.beans.factory.ObjectProvider;
import org.springframework.boot.autoconfigure.AutoConfiguration;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.boot.autoconfigure.http.codec.CodecsAutoConfiguration;
import org.springframework.boot.web.codec.CodecCustomizer;
import org.springframework.boot.web.reactive.function.client.WebClientCustomizer;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Scope;
import org.springframework.core.annotation.Order;
import org.springframework.web.reactive.function.client.WebClient;

/**
 * {@link EnableAutoConfiguration Auto-configuration} for {@link WebClient}.
 * <p>
 * This will produce a
 * {@link org.springframework.web.reactive.function.client.WebClient.Builder
 * WebClient.Builder} bean with the {@code prototype} scope, meaning each injection point
 * will receive a newly cloned instance of the builder.
 *
 * @author Brian Clozel
 * @since 2.0.0
 */
@AutoConfiguration(after = { CodecsAutoConfiguration.class, ClientHttpConnectorAutoConfiguration.class })
@ConditionalOnClass(WebClient.class)
public class WebClientAutoConfiguration {

	@Bean
	@Scope("prototype")
	@ConditionalOnMissingBean
	public WebClient.Builder webClientBuilder(ObjectProvider<WebClientCustomizer> customizerProvider) {
		WebClient.Builder builder = WebClient.builder();
		customizerProvider.orderedStream().forEach((customizer) -> customizer.customize(builder));
		return builder;
	}

	@Configuration(proxyBeanMethods = false)
	@ConditionalOnBean(CodecCustomizer.class)
	protected static class WebClientCodecsConfiguration {

		@Bean
		@ConditionalOnMissingBean
		@Order(0)
		public WebClientCodecCustomizer exchangeStrategiesCustomizer(ObjectProvider<CodecCustomizer> codecCustomizers) {
			return new WebClientCodecCustomizer(codecCustomizers.orderedStream().collect(Collectors.toList()));
		}

	}

}

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