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Recover

Recover 中间件会从链中任意位置的 panic 中恢复,打印堆栈跟踪,并把控制权传给集中式 HTTPErrorHandler

e.Use(middleware.Recover())
e := echo.New()
e.Use(middleware.RecoverWithConfig(middleware.RecoverConfig{
StackSize: 1 << 10, // 1 KB
}))

上面的示例使用 StackSize 为 1 KB,并对 DisableStackAllDisablePrintStack 使用默认值。

type RecoverConfig struct {
// Skipper defines a function to skip middleware.
Skipper Skipper
// Size of the stack to be printed.
// Optional. Default value 4KB.
StackSize int
// DisableStackAll disables formatting stack traces of all other goroutines
// into the buffer after the trace for the current goroutine.
// Optional. Default value false.
DisableStackAll bool
// DisablePrintStack disables printing the stack trace.
// Optional. Default value false.
DisablePrintStack bool
}
var DefaultRecoverConfig = RecoverConfig{
Skipper: DefaultSkipper,
StackSize: 4 << 10, // 4 KB
DisableStackAll: false,
DisablePrintStack: false,
}