Struct ConfigBuilder 

pub struct ConfigBuilder { /* private fields */ }

配置构建器

Implementations

impl ConfigBuilder

pub fn new() -> Self

创建新的配置构建器

pub fn add_file<P: AsRef<Path>>( self, path: P, format: Option<ConfigFormat>, ) -> Self

添加配置文件

参数

• path - 配置文件路径
• format - 可选的文件格式，如果不指定则从文件扩展名推断

pub fn add_yaml_file<P: AsRef<Path>>(self, path: P) -> Self

添加 YAML 配置文件

pub fn add_toml_file<P: AsRef<Path>>(self, path: P) -> Self

添加 TOML 配置文件

pub fn add_json_file<P: AsRef<Path>>(self, path: P) -> Self

添加 JSON 配置文件

pub fn with_env_prefix<S: Into<String>>(self, prefix: S) -> Self

设置环境变量前缀

参数

• prefix - 环境变量前缀，例如 “APP”

pub fn with_env_separator<S: Into<String>>(self, separator: S) -> Self

设置环境变量分隔符

参数

• separator - 分隔符，默认为 “__”

pub fn ignore_missing_files(self, ignore: bool) -> Self

设置是否忽略缺失的配置文件

pub fn with_default<K, V>(self, key: K, value: V) -> Result<Self>

where K: Into<String>, V: Into<Value>,

添加默认值

参数

• key - 配置键
• value - 默认值

pub fn build<T>(self) -> Result<T>

where T: for<'de> Deserialize<'de>,

构建配置并反序列化为指定类型

返回值

返回反序列化后的配置对象

pub fn build_raw(self) -> Result<Config>

构建配置并返回原始 Config 对象

Trait Implementations

impl Clone for ConfigBuilder

fn clone(&self) -> ConfigBuilder

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ConfigBuilder

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for ConfigBuilder

fn default() -> Self

Returns the “default value” for a type.