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Feishu Message Fallback
ASecurityFeishu message fallback mechanism with retry logic. Automatically retries failed messages with exponential backoff and fallback from rich text to plain text.
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- Added September 5, 2026
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[](https://www.skillsdirectory.com/skills/dvcrn-feishu-message-fallback)---
name: feishu-message-fallback
description: "Feishu message fallback mechanism with retry logic. Automatically retries failed messages with exponential backoff and fallback from rich text to plain text."
---
# 飞书消息回退机制
## 功能
- **自动重试**:消息发送失败时自动重试(最多 3 次)
- **指数退避**:重试间隔递增(1s → 2s → 4s)
- **降级策略**:富文本失败 → 纯文本重试
- **错误日志**:记录失败原因和重试结果
## 使用场景
- 网络波动导致消息发送失败
- 富文本格式不被支持
- 消息队列积压
## 实现逻辑
```powershell
# 伪代码
function Send-FeishuMessageWithFallback {
param($message, $retryCount = 3)
for ($i = 0; $i -lt $retryCount; $i++) {
try {
# 尝试发送富文本
$result = Send-FeishuRichText -message $message
if ($result.success) { return $result }
} catch {
Write-Host "Attempt $($i+1) failed: $_"
}
# 指数退避等待
if ($i -lt $retryCount - 1) {
$waitTime = [Math]::Pow(2, $i)
Start-Sleep -Seconds $waitTime
}
}
# 所有重试失败,降级为纯文本
Write-Host "Rich text failed, falling back to plain text..."
return Send-FeishuPlainText -message $message
}
```
## 配置
在 `TOOLS.md` 中添加:
```markdown
### 飞书消息回退配置
- **最大重试次数:** 3
- **重试间隔:** 1s, 2s, 4s(指数退避)
- **降级策略:** 富文本 → 纯文本
```
## 错误处理
| 错误类型 | 处理方式 |
|---------|---------|
| 网络超时 | 自动重试 |
| 格式错误 | 降级为纯文本 |
| 权限不足 | 立即失败,通知用户 |
| 消息过长 | 截断后重试 |
## 集成到定时任务
定时任务调用时自动启用回退机制:
```json
{
"delivery": {
"mode": "announce",
"channel": "feishu",
"to": "ou_faec8fadc584abfd18a2996f55d607b5",
"retry": {
"maxAttempts": 3,
"backoffMs": 1000
}
}
}
```
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