JWT 解析解析清空JWT TokeneyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzaXRlIjoidXNlZnVsc2hlbGYuY29tIiwibmFtZSI6IuWunuWQpeeUqOW3peWFt-aetiIsImlhdCI6MTcxNzQyMDgwMH0.signatureHeaderHeader 解析结果PayloadPayload 解析结果 仅解析内容,不验证签名有效性 复制 Payload