SpringCloudGateway里怎么给请求添加header信息
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import java.io.UnsupportedEncodingException; import java.net.URLEncoder; import org.springframework.cloud.gateway.filter.GatewayFilterChain; import org.springframework.cloud.gateway.filter.GlobalFilter; import org.springframework.http.server.reactive.ServerHttpRequest; import org.springframework.security.core.context.ReactiveSecurityContextHolder; import org.springframework.security.core.context.SecurityContext; import org.springframework.stereotype.Component; import org.springframework.util.StringUtils; import org.springframework.web.server.ServerWebExchange; import reactor.core.publisher.Mono; @Component public class WebFluxUserRequestInfoFilter implements GlobalFilter { private static final String ORG_CODE = "11000001"; private static final String CHANNEL_CODE = "WEBQHZX001"; private static final String HEADER_USER_INFO_ENCODE = "X-User-Info-Encode"; @Override public Monofilter(ServerWebExchange exchange, GatewayFilterChain chain) { return ReactiveSecurityContextHolder.getContext().map(SecurityContext::getAuthentication).map(authentication -> { UserRequestInfo userInfo = new UserRequestInfo(); Object details = authentication.getDetails(); if(details instanceof JWTPlayload){ JWTPlayload jwtPlayload = (JWTPlayload) details; String userId = jwtPlayload.getSub(); userInfo.setUserId(userId); userInfo.setUserName(jwtPlayload.getCname()); } return userInfo; }).defaultIfEmpty(new UserRequestInfo()).flatMap(userInfo -> { UserRequestInfoHolder.setInstance(userInfo); String userInfoJson; try { String userInfoEncode = exchange.getRequest().getHeaders().getFirst(HEADER_USER_INFO_ENCODE); if(!StringUtils.isEmpty(userInfoEncode) && "false".equalsIgnoreCase(userInfoEncode)){ userInfoJson = JsonUtils.object2Json(userInfo); }else{ userInfoJson = URLEncoder.encode(JsonUtils.object2Json(userInfo), GlobalConstant.CHARSET); } } catch (UnsupportedEncodingException e) { throw new RuntimeException("URLEncoder.encode UserRequestInfo 失败"); } ServerHttpRequest newRequest = exchange.getRequest().mutate() .header(HeaderDefinition.USER_INFO, userInfoJson) .build(); return chain.filter(exchange.mutate().request(newRequest).build()); }); } }
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