RetryPolicy class

重试策略配置类

用于配置请求重试行为，支持固定间隔、指数退避、指数退避+抖动三种策略。

使用示例

// 固定间隔重试（向后兼容）
RxNet.get()
  .setPath("/api/data")
  .setRetryCount(3, interval: Duration(seconds: 2))
  .request();

// 指数退避重试
RxNet.get()
  .setPath("/api/data")
  .setRetryPolicy(RetryPolicy(
    maxRetries: 3,
    strategy: RetryStrategy.exponentialBackoff,
    baseInterval: Duration(seconds: 1),
  ))
  .request();

// 指数退避 + 抖动重试
RxNet.get()
  .setPath("/api/data")
  .setRetryPolicy(RetryPolicy(
    maxRetries: 5,
    strategy: RetryStrategy.exponentialBackoffWithJitter,
    baseInterval: Duration(seconds: 1),
    maxInterval: Duration(seconds: 30),
  ))
  .request();

Constructors

RetryPolicy({int maxRetries = 3, RetryStrategy strategy = RetryStrategy.fixed, Duration baseInterval = const Duration(seconds: 1), Duration? maxInterval, double backoffMultiplier = 2.0})
const
RetryPolicy.exponentialBackoff({int maxRetries = 3, Duration baseInterval = const Duration(seconds: 1), Duration? maxInterval, double backoffMultiplier = 2.0})
指数退避重试的工厂方法
factory
RetryPolicy.exponentialBackoffWithJitter({int maxRetries = 5, Duration baseInterval = const Duration(seconds: 1), Duration? maxInterval, double backoffMultiplier = 2.0})
指数退避 + 抖动重试的工厂方法
factory
RetryPolicy.fixed({int maxRetries = 3, Duration interval = const Duration(seconds: 1)})
固定间隔重试的工厂方法（兼容旧 API 行为）
factory

Properties

backoffMultiplier → double
退避倍数（默认 2.0）
final
baseInterval → Duration
基础间隔时间（固定间隔使用，指数退避的基础值）
final
hashCode → int
The hash code for this object.
no setterinherited
maxInterval → Duration?
最大间隔时间（仅指数退避策略使用，防止间隔过长）
final
maxRetries → int
最大重试次数
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
strategy → RetryStrategy
重试策略
final

Methods

getDelay(int attempt) → Duration
计算第 attempt 次重试的延迟时间（从 0 开始计数）
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toString() → String
A string representation of this object.
override

Operators

operator ==(Object other) → bool
The equality operator.
inherited