swagger3, openapi integra knife4j, basePath perdió el problema de solicitud 404

Escrito en el frente: Cuando swagger en el microservicio se actualiza a 3.0, la página no se puede abrir usando el método de integración 2.0 al integrar knife4j. Aquí hay un método detallado para integrar knife4j con swagger3.0.

Nota: swagger3.0 necesita usar la nueva dependencia de knife4j

		<dependency>
			<groupId>com.github.xiaoymin</groupId>
			<artifactId>knife4j-springdoc-ui</artifactId>
			<version>3.0.3</version>
		</dependency>

Antes de agregar
Insertar descripción de la imagen aquí
el código de filtro de filtro

package com.wlj.clouddemo.gateway.filter;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import lombok.extern.slf4j.Slf4j;
import org.reactivestreams.Publisher;
import org.springframework.cloud.gateway.filter.GatewayFilterChain;
import org.springframework.cloud.gateway.filter.GlobalFilter;
import org.springframework.core.Ordered;
import org.springframework.core.io.buffer.DataBuffer;
import org.springframework.core.io.buffer.DataBufferUtils;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpStatus;
import org.springframework.http.server.reactive.ServerHttpRequest;
import org.springframework.http.server.reactive.ServerHttpResponse;
import org.springframework.http.server.reactive.ServerHttpResponseDecorator;
import org.springframework.stereotype.Component;
import org.springframework.web.server.ServerWebExchange;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;

import java.nio.charset.Charset;
import java.util.ArrayList;
import java.util.List;

/**
 * swagger v3/api-docs缺失basePath 过滤器
 *
 * @Author 955
 * @Date 2022-09-22 11:31
 * @Description
 */

@Slf4j
@Component
public class SwaggerGlobalFilter implements GlobalFilter, Ordered {
    
    

	public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {
    
    
		ServerHttpRequest request = exchange.getRequest();
		String path = request.getPath().toString();
		String host = request.getLocalAddress().getHostString();
		int port = request.getLocalAddress().getPort();
		if (!path.endsWith("/v3/api-docs")) {
    
    
			return chain.filter(exchange);
		}
		String[] pathArray = path.split("/");
		System.out.println(pathArray);
		String basePath = pathArray[1];
		ServerHttpResponse originalResponse = exchange.getResponse();
		// 定义新的消息头
		ServerHttpResponseDecorator decoratedResponse = new ServerHttpResponseDecorator(originalResponse) {
    
    
			@Override
			public Mono<Void> writeWith(Publisher<? extends DataBuffer> body) {
    
    
				if (super.getStatusCode().equals(HttpStatus.OK) && body instanceof Flux) {
    
    
					Flux<? extends DataBuffer> fluxBody = Flux.from(body);
					return super.writeWith(fluxBody.buffer().map(dataBuffers -> {
    
    
						List<String> list = new ArrayList<>();
						dataBuffers.forEach(dataBuffer -> {
    
    
							byte[] content = new byte[dataBuffer.readableByteCount()];
							dataBuffer.read(content);
							DataBufferUtils.release(dataBuffer);
							list.add(new String(content, Charset.forName("UTF-8")));
						});
						String s = this.listToString(list);
						JSONObject jsonObject = JSON.parseObject(s);

						jsonObject.put("host", host + ":" + port);
						jsonObject.put("basePath", basePath);
						s = jsonObject.toString();
						// 设置更新后的header请求头长度
						int length = s.getBytes().length;
						HttpHeaders headers = originalResponse.getHeaders();
						headers.setContentLength(length);
						return bufferFactory().wrap(s.getBytes(Charset.forName("UTF-8")));
					}));
				}
				return super.writeWith(body);
			}

			@Override
			public HttpHeaders getHeaders() {
    
    
				// 获取父类原始ServerHttpResponse的header请求头信息,这是代理Delegate类型
				HttpHeaders httpHeaders = super.getHeaders();
				httpHeaders.set(HttpHeaders.CONTENT_TYPE, "application/json;charset=UTF-8");
				return httpHeaders;
			}

			private String listToString(List<String> list) {
    
    
				StringBuilder stringBuilder = new StringBuilder();
				for (String s : list) {
    
    
					stringBuilder.append(s);
				}
				return stringBuilder.toString();
			}
		};

		// replace response with decorator
		return chain.filter(exchange.mutate().response(decoratedResponse).build());
	}

	@Override
	public int getOrder() {
    
    
		return -2;
	}

}

Después de agregar el filtro
Insertar descripción de la imagen aquí

Supongo que te gusta

Origin blog.csdn.net/m0_49605579/article/details/127015070
Recomendado
Clasificación