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SpringCloudGateway里怎么给请求添加header信息

这篇文章主要讲解了“SpringCloud Gateway里怎么给请求添加header信息”,文中的讲解内容简单清晰,易于学习与理解,下面请大家跟着小编的思路慢慢深入,一起来研究和学习“SpringCloud Gateway里怎么给请求添加header信息”吧!

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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 Mono filter(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());
        });

    }

}

感谢各位的阅读,以上就是“SpringCloud Gateway里怎么给请求添加header信息”的内容了,经过本文的学习后,相信大家对SpringCloud Gateway里怎么给请求添加header信息这一问题有了更深刻的体会,具体使用情况还需要大家实践验证。这里是创新互联,小编将为大家推送更多相关知识点的文章,欢迎关注!


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