"code":300,"message":"用户未登录，请重新登录","data":null,"count":0,"vals":null

根据提供的引用内容，我们可以看到这段代码是一个基于gin框架的用户鉴权处理函数。它接收用户发送的用户名和密码，并校验其是否正确。如果校验通过，则生成一个Token并返回给用户。如果校验失败，则返回鉴权失败的信息。

对于你提供的问题中的代码片段，我们可以看到它返回了一个自定义的错误信息："code":300,"message":"用户未登录，请重新登录"。
同时，data字段为null，count字段为0，vals字段为null。

回答你的问题后，我将为您提供几个相关的问题。

相关问题

for j in vals:

This is a Python for loop that iterates over the values in the iterable object `vals`. On each iteration, the loop variable `j` is assigned to the current value from `vals`. The block of code inside the loop is executed for each value in turn. The loop continues until all values in `vals` have been processed.

for i in vals:

This is a code snippet in Python that loops through a sequence of values stored in the variable "vals". The loop variable "i" takes on each value in "vals" one by one, and the indented code block below the loop is executed for each value of "i".