java - 如何在 spring boot 中从 application.yml 中读取带有特殊字符的属性

Question

应用程序.yml

mobile-type:
  mobile-codes:
    BlackBerry: BBSS
    Samsung: SAMS
    Samsung+Vodafone: SAMSVV

1. 从应用程序 yml 文件中读取 (Samsung+Vodafone)key 时，我们得到了。连接的字符串格式为“SamsungVodafone”。

2. 此外，我们尝试过“三星”/+“沃达丰”:SAMSVV，但结果是一样的，我们还尝试了其他符号，例如“-”，所以它工作正常。

3. 用于从应用程序 yml 文件中读取键和值。我们写了下面的代码。

import java.util.Map;

import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Component;
 @ConfigurationProperties(prefix = "mobile-type")
    @Component
    public class mobileTypeConfig {


        Map<String, String> mobileCodes;

        public Map<String, String> getMobileCodes() {
            return mobileCodes;
        }

        public void setMobileCodes(Map<String, String> mobileCodes) {
            this.mobileCodes= mobileCodes;
        }
}

注:Spring Boot版本2.0.6.发布

Answer 1

使用方括号不转义任何字符并用双引号将其编码

mobile-type:
  mobile-codes:
    BlackBerry: BBSS
    Samsung: SAMS
    "[Samsung+Vodafone]": SAMSVV

输出

{BlackBerry=BBSS, Samsung=SAMS, Samsung+Vodafone=SAMSVV}

Binding

When binding to Map properties, if the key contains anything other than lowercase alpha-numeric characters or -, you need to use the bracket notation so that the original value is preserved. If the key is not surrounded by [], any characters that are not alpha-numeric or - are removed. For example, consider binding the following properties to a Map:

acme:
  map:
   "[/key1]": value1
   "[/key2]": value2