当插入Spring的@value注释时，如何避免截断零前导数字？

Question

export SOME_STRING_CONFIG_PARAM="01"

some.string.config.param=${SOME_STRING_CONFIG_PARAM:01}

@Value("${some.string.config.param}")
String someStringConfigfParam;

System.out.println("someStringConfigParam: " + someStringConfigParam);

someStringConfigParam: 1

如何告诉Spring值应该作为字符串处理？

Answer 1

我通过你的演示项目得到了正确的答案：

This is the Test Property Value = 01

但是我在yml文件中遇到了问题，原因是yml默认将01作为整数处理。用双引号就可以解决了。

在yml文件中键入示例：

a: 123                     # an integer
b: "123"                   # a string, disambiguated by quotes
c: 123.0                   # a float
d: !!float 123             # also a float via explicit data type prefixed by (!!)
e: !!str 123               # a string, disambiguated by explicit type
f: !!str Yes               # a string via explicit type
g: Yes                     # a boolean True (yaml1.1), string "Yes" (yaml1.2)
h: Yes we have No bananas  # a string, "Yes" and "No" disambiguated by context.