yangys
2025-06-23 edd4eb1d5eed4085bbe80cb65116fe585a13c42f
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/**
 * BladeX Commercial License Agreement
 * Copyright (c) 2018-2099, https://bladex.cn. All rights reserved.
 * <p>
 * Use of this software is governed by the Commercial License Agreement
 * obtained after purchasing a license from BladeX.
 * <p>
 * 1. This software is for development use only under a valid license
 * from BladeX.
 * <p>
 * 2. Redistribution of this software's source code to any third party
 * without a commercial license is strictly prohibited.
 * <p>
 * 3. Licensees may copyright their own code but cannot use segments
 * from this software for such purposes. Copyright of this software
 * remains with BladeX.
 * <p>
 * Using this software signifies agreement to this License, and the software
 * must not be used for illegal purposes.
 * <p>
 * THIS SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY. The author is
 * not liable for any claims arising from secondary or illegal development.
 * <p>
 * Author: DreamLu (596392912@qq.com)
 */
package org.springblade.gateway.filter;
 
import com.alibaba.nacos.common.utils.StringUtils;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.boot.actuate.autoconfigure.endpoint.web.WebEndpointProperties;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.cloud.gateway.filter.GatewayFilterChain;
import org.springframework.cloud.gateway.filter.GlobalFilter;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.Ordered;
import org.springframework.http.HttpHeaders;
import org.springframework.http.server.reactive.ServerHttpRequest;
import org.springframework.http.server.reactive.ServerHttpResponse;
import org.springframework.util.MultiValueMap;
import org.springframework.web.server.ServerWebExchange;
import org.springframework.web.util.UriComponentsBuilder;
import reactor.core.publisher.Mono;
 
import java.util.ArrayList;
import java.util.List;
 
/**
 * webflux 相应日志,方便开发调试,注意排序要优先。
 *
 * @author dream.lu
 */
@Slf4j
@Configuration(proxyBeanMethods = false)
@RequiredArgsConstructor
@ConditionalOnProperty(value = "blade.log.request.enabled", havingValue = "true", matchIfMissing = true)
public class ResponseLogFilter implements GlobalFilter, Ordered {
    private final WebEndpointProperties endpointProperties;
 
    @Override
    public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {
        ServerHttpRequest request = exchange.getRequest();
        // 打印请求路径
        String path = request.getPath().pathWithinApplication().value();
        // 忽略 endpoint 请求
        String endpointBasePath = endpointProperties.getBasePath();
        if (StringUtils.isNotBlank(endpointBasePath) && path.startsWith(endpointBasePath)) {
            return chain.filter(exchange);
        }
        return chain.filter(exchange).then(
            Mono.fromRunnable(() -> {
                MultiValueMap<String, String> queryParams = request.getQueryParams();
                String requestUrl = UriComponentsBuilder.fromPath(path).queryParams(queryParams).build().toUriString();
 
                // 构建成一条长 日志,避免并发下日志错乱
                StringBuilder responseLog = new StringBuilder(300);
                // 日志参数
                List<Object> responseArgs = new ArrayList<>();
                responseLog.append("\n\n================ Gateway Response Start  ================\n");
                ServerHttpResponse response = exchange.getResponse();
                // 打印路由 200 get: /api/xxx/xxx
                responseLog.append("<=== {} {}: {}\n");
                // 参数
                String requestMethod = request.getMethod().name();
                responseArgs.add(response.getStatusCode().value());
                responseArgs.add(requestMethod);
                responseArgs.add(requestUrl);
 
                // 打印请求头
                HttpHeaders headers = response.getHeaders();
                headers.forEach((headerName, headerValue) -> {
                    responseLog.append("===Headers===  {}: {}\n");
                    responseArgs.add(headerName);
                    responseArgs.add(headerValue.toArray());
                });
 
                responseLog.append("================  Gateway Response End  =================\n");
                // 打印执行时间
                log.info(responseLog.toString(), responseArgs.toArray());
            })
        );
    }
 
    @Override
    public int getOrder() {
        return Ordered.HIGHEST_PRECEDENCE;
    }
}