标签:return Webflux springframework server org 过滤器 import new Gateway
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import com.hhwy.fweb.gateway.constant.GatewayConstant;
import org.apache.commons.codec.Charsets;
import org.reactivestreams.Publisher;
import org.springframework.core.io.buffer.DataBuffer;
import org.springframework.core.io.buffer.DataBufferFactory;
import org.springframework.core.io.buffer.DataBufferUtils;
import org.springframework.core.io.buffer.DefaultDataBufferFactory;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpStatus;
import org.springframework.http.server.reactive.ServerHttpResponse;
import org.springframework.http.server.reactive.ServerHttpResponseDecorator;
import org.springframework.stereotype.Component;
import org.springframework.util.AntPathMatcher;
import org.springframework.web.server.ServerWebExchange;
import org.springframework.web.server.WebFilter;
import org.springframework.web.server.WebFilterChain;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;
import reactor.netty.http.server.HttpServerResponse;
import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets;
/**
* @author :PangTiemin
* @date :Created in 2021/11/10 13:55
* @description:
* @modified By:
*/
@Component
public class RedirectLastFilter implements WebFilter{
@Override
public Mono<Void> filter(ServerWebExchange exchange, WebFilterChain chain) {
AntPathMatcher antPathMatcher = new AntPathMatcher();
if(!antPathMatcher.match("/*/login/dologin",exchange.getRequest().getPath().value())){
return chain.filter(exchange);
}
ServerHttpResponse originalResponse = exchange.getResponse();
DataBufferFactory bufferFactory = originalResponse.bufferFactory();
ServerHttpResponseDecorator decoratedResponse = new ServerHttpResponseDecorator(originalResponse) {
@Override
public Mono<Void> writeWith(Publisher<? extends DataBuffer> body) {
if (body instanceof Flux) {
Flux<? extends DataBuffer> fluxBody = (Flux<? extends DataBuffer>) body;
return super.writeWith(fluxBody.buffer().map(dataBuffer -> {
DataBufferFactory dataBufferFactory = new DefaultDataBufferFactory();
DataBuffer join = dataBufferFactory.join(dataBuffer);
byte[] content = new byte[join.readableByteCount()];
join.read(content);
DataBufferUtils.release(join);
//responseData 就是响应
String responseData = new String(content, Charsets.UTF_8);
JSONObject data = JSON.parseObject(responseData);
if (data.get("code").equals("10200")){
HttpHeaders headers = originalResponse.getHeaders();
// headers.remove("Content-Type");
// headers.add("Content-Type", "text/javascript");
byte[] uppedContent = new String(content, Charset.forName("UTF-8")).getBytes();
return bufferFactory.wrap(uppedContent);
}else {
//s就是response的值
byte[] uppedContent = new String(content, Charset.forName("UTF-8")).getBytes();
return bufferFactory.wrap(uppedContent);
}
}));
}
// if body is not a flux. never got there.
return super.writeWith(body);
}
};
// replace response with decorator
return chain.filter(exchange.mutate().response(decoratedResponse).build());
}
}
标签:return,Webflux,springframework,server,org,过滤器,import,new,Gateway 来源: https://blog.csdn.net/u014203449/article/details/121251976
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