带有 URL 的 Spring Boot YAML 配置在版本 2 中不再正确加载 [英] Spring Boot YAML configuration with URL in key no longer loads correctly with version 2

问题描述

我正在将我的应用程序从 Spring Boot 1.5 迁移到 2.0，并且其中一个 YAML 属性不再正确加载.以下配置片段:

I'm migrating my application from Spring Boot 1.5 to 2.0 and one of the YAML properties no longer loads correctly. The following configuration snippet:

myapp
  serviceUrls:
    'https://example.org/test': 'https://test.example.org/Endpoint'

映射到这个配置类:

@ConfigurationProperties(prefix = "myapp", ignoreUnknownFields = false)
public final class MyAppProperties {
  private Map<String, String> serviceUrls = new HashMap<>();
  //[...]
}

• 使用 Spring Boot 1.5，它加载为带有 https://example.org/test -> https://test.example.org/Endpoint 的地图;
• 但在 Spring Boot 2.0 中，冒号和斜线从映射键中消失 httpsexample.orgtest -> https://test.example.org/Endpoint.
  • With Spring Boot 1.5, it loads as a map with https://example.org/test -> https://test.example.org/Endpoint;
  • but with Spring Boot 2.0, the colons and slashes disappear from map keys httpsexample.orgtest -> https://test.example.org/Endpoint.

  我在 迁移指南.YAML 解析在 Spring Boot 2 中是否发生了变化?有没有更好的方法来编写以 URL 为键的 YAML 映射?

  I couldn't find any mention of this in the migration guide. Has YAML parsing changed in Spring Boot 2? Is there a better way to write YAML maps with URLs as keys?

  推荐答案

  我应该检查 GitHub 问题...有人报告 类似的问题.解决方法是使用括号语法"，不幸的是 几乎没有记录，将键括在括号内:

  I should have checked GitHub issues... someone reported a similar problem. The solution is to use the "bracket syntax", which is unfortunately barely documented, wrapping the keys within brackets:

  myapp
    serviceUrls:
      '[https://example.org/test]': 'https://test.example.org/Endpoint'
  

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