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ConfigBuilder

Struct ConfigBuilder 

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pub struct ConfigBuilder { /* private fields */ }
Expand description

分层配置构建器,支持文件 → 环境变量 → 程序化覆盖。

use cc_core::ConfigBuilder;

let cfg = ConfigBuilder::new()
    .with_mysql("default", |m| m.host("127.0.0.1").user("root").password("pw").database("mydb"))
    .with_redis("cache", |r| r.url("redis://localhost:6379"))
    .build()
    .unwrap();

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impl ConfigBuilder

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pub fn new() -> Self

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pub fn from_file<P: AsRef<Path>>(path: P) -> Result<Self>

从 TOML 文件创建 ConfigBuilder。

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pub fn from_toml(toml_str: &str) -> Result<Self>

从 TOML 字符串创建 ConfigBuilder。

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pub fn from_env() -> Result<Self>

从环境变量创建 ConfigBuilder。

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pub fn env_prefix(self, prefix: impl Into<String>) -> Self

设置环境变量前缀(默认 “CC”)。

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

从 TOML 文件加载(与已有配置合并,文件值覆盖已有值)。

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pub fn with_toml(self, toml_str: &str) -> Result<Self>

从内联 TOML 字符串加载(方便测试和动态配置)。

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pub fn with_env(self) -> Result<Self>

读取环境变量覆盖。格式:<PREFIX>_MYSQL_<NAME>_<FIELD> / <PREFIX>_REDIS_<NAME>_<FIELD>

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pub fn with_mysql( self, name: impl Into<String>, f: impl FnOnce(MysqlConfigBuilder) -> MysqlConfigBuilder, ) -> Self

程序化添加 / 覆盖单个 MySQL 连接。

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pub fn with_redis( self, name: impl Into<String>, f: impl FnOnce(RedisConfigBuilder) -> RedisConfigBuilder, ) -> Self

程序化添加 / 覆盖单个 Redis 连接。

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pub fn merge(self, other: Config) -> Self

合并另一个 Config(other 覆盖 self)。

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

构建最终配置并验证。

Trait Implementations§

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impl Default for ConfigBuilder

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fn default() -> Self

Returns the “default value” for a type. Read more

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where T: 'static + ?Sized,

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