Gateway整合sentineI限流返回自定义提示|学习笔记

开发者学堂课程【精通Spring Cloud Alibaba：Gateway整合sentineI限流返回自定义提示】学习笔记，与课程紧密联系，让用户快速学习知识。

课程地址：https://developer.aliyun.com/learning/course/634/detail/10148

Gateway 整合 sentineI 限流返回自定义提示

如何修改限流错误提示

1、自定义一个 handler

2、输入

public class JsonSentinelGatewayBlockExceptionHandler implements WebExceptionHandler  

{

public JsonSentinelGatewayBlockExceptionHandler(List< ViewResolver> viewResolvers,

ServerCodecConfigurer serverCodecConfigurer)  {

}

@Override    

public Mono<Void> handle(ServerWebExchange exchange, Throwable ex)  {

ServerHttpResponse serverHttpResponse = exchange.   getResponse( ）;

serverHttpResponse, getHeaders( ）. add("Content-Type",

"application/json: charset=UTF-8");

byte[ ] datas = "{\"code\":403,\"msg\":\"API接口被限流

\"}".getBytes(StandardCharsets.UTF_8);

DataBuffer buffer = serverHttpResponse.bufferFactory( ) . wrap(datas);

return serverHttpResponse，writeWith(Mono. just(buffer));

}

}

3、结果显示：

{“code”：403，“msg”：“API接口被限流”}