Spring Microservices-由以下原因导致：java.lang.ClassNotFoundException：org.springframework.expression.spel.support.SimpleEvaluationContext

Question

我正在跟踪https://dzone.com/articles/quick-guide-to-microservices-with-spring-boot-20-e链接中的教程，而没有进行任何自定义。

我已经按照顺序成功启动了ratings = LOAD '/files/u.data' AS (userID:int, movieID:int,rating:int,ratingTime:int); metadata = LOAD '/files/u.item' USING PigStorage('|') AS (movieID:int, movieTitle:chararray,releaseDate:chararray, videoRelease:charArray,imdbLink:chararray); nameLookup = FOREACH metadata GENERATE movieID, movieTitle, ToUnixTime(ToDate(releaseDate,'dd-MMM-yyyy')) AS releaseTime; ratingsByMovie = GROUP ratings BY movieID; avgRatings = FOREACH ratingsByMovie GENERATE group AS movieID, AVG(ratings.rating) AS avgRating; fiveStarMovies = FILTER avgRatings BY avgRating > 4.0; fiveStarsWithData = JOIN fiveStarMovies BY movieID, nameLookup by movieID; oldestFiveStarMovies = ORDER fiveStarsWithData BY nameLookup::releaseTime; DUMP oldestFiveStarMovies; ，"config-service"和"discovery-service"。

现在，当我只是尝试启动“网关服务”时，出现以下错误。

有人可以指导我吗？

"proxy-service"

使用Spring Boot Parent版本：

Answer 1

我仍然不知道它是如何工作的。但是我从“配置服务器”模块中更改了以下“ gateway-service.yml”条目，它开始起作用。

我改变了

spring:
  cloud:
    gateway:
      discovery:
        locator:
          enabled: true

到

spring:
  cloud:
    gateway:
      discovery:
        locator:
          lowerCaseServiceId: true

我找到了一些很好的链接，可以帮助您进一步了解此问题-

1. https://github.com/spring-cloud/spring-cloud-gateway/issues/344

2. https://github.com/spring-cloud/spring-cloud-gateway/issues/123