好,我知道了。答案可以在这里找到:https ://developers.google.com/accounts/docs/OAuth2WebServer#offline
首先,您必须发出 Auth 请求
<form method="POST" action="https://accounts.google.com/o/oauth2/auth">
<input type="hidden" name="scope" value="[YOUR SCOPE]"/>
<input type="hidden" name="client_id" value="[YOUR CLIENT ID]"/>
<input type="hidden" name="response_type" value="code"/>
<input type="hidden" name="redirect_uri" value="[YOUR RETURN URL]"/>
<input type="hidden" name="access_type" value="offline"/>
<input type="submit"/>
</form>
然后你会得到一个'代码'到你的 return_url
然后需要将代码交换为access_token和refresh_token
<form method="POST" action="https://accounts.google.com/o/oauth2/token">
<input type="text" name="code" value="[CODE YOU GOT IN PREV STEP]"/>
<input type="hidden" name="client_id" value="[YOUR CLIENT ID]"/>
<input type="hidden" name="client_secret" value="YOUR CLIENT SECRET"/>
<input type="hidden" name="grant_type" value="authorization_code"/>
<input type="hidden" name="redirect_uri" value="YOUR REDIRECT URL"/>
<input type="submit"/>
</form>
因此,您将打赌响应如下:
{
"access_token" : "[HERE YOU ACCESS TOKEN]",
"token_type" : "Bearer",
"expires_in" : 3600,
"id_token" : "eyJhbGciOiJSUzI1NiIsImtpZCI6ImRiMjBlNWMwZGU1YWI0MGRjNTU5ODBkM2EzYmZlNDdlOGM2NGM5YjAifQ.eyJpc3MiOiJhY2NvdW50cy5nb29nbGUuY29tIiwiY2lkIjoiMjQ2ODg5NjU3NDg2LmFwcHMuZ29vZ2xldXNlcmNvbnRlbnQuY29tIiwiYXVkIjoiMjQ2ODg5NjU3NDg2LmFwcHMuZ29vZ2xldXNlcmNvbnRlbnQuY29tIiwidG9rZW5faGFzaCI6IjRURGtlQ0MzVWRPZHoyd2k1N2RnaUEiLCJpZCI6IjExNTI0MDk1NDM0Njg1NTU4NjE2MSIsImlhdCI6MTM1MzQwNDQ3MCwiZXhwIjoxMzUzNDA4MzcwfQ.Va98sh9LvMEIWxpRMFkcuFqtDAUfJLN5M__oJyjvmIxQR9q2NUIoocyjqbNyXc7as_ePQYiUjajx0SCumtR4Zhv-exeJfrKA_uMmJTe7jWhK6K2R3JQ2-aIZNnehpEuhYZBXgLhzYz1mlFrLqQTdV6LjDhRPDH-ol4UKWXfbAVE",
"refresh_token" : "[HERE YOUR REFRESH TOKEN]"
}
现在您可以将这些令牌存储在您的应用程序中并无限次使用,每 3600 秒刷新一次 access_token
<form method="POST" action="https://accounts.google.com/o/oauth2/token">
<input type="text" name="refresh_token" value="[YOUR REFRESH TOKEN]"/>
<input type="hidden" name="client_id" value="[YOUR CLIENT ID]"/>
<input type="hidden" name="client_secret" value="[YOUR CLIENT SECRET]"/>
<input type="hidden" name="grant_type" value="refresh_token"/>
<input type="submit"/>
</form>
每次你提出这个请求,你都会得到一个新的 access_token
{
"access_token" : "[NEW ACCESS TOKEN]",
"token_type" : "Bearer",
"expires_in" : 3600,
"id_token" : "eyJhbGciOiJSUzI1NiIsImtpZCI6ImRiMjBlNWMwZGU1YWI0MGRjNTU5ODBkM2EzYmZlNDdlOGM2NGM5YjAifQ.eyJpc3MiOiJhY2NvdW50cy5nb29nbGUuY29tIiwiYXVkIjoiMjQ2ODg5NjU3NDg2LmFwcHMuZ29vZ2xldXNlcmNvbnRlbnQuY29tIiwidG9rZW5faGFzaCI6ImpyYk5oNkRHZFN4Y0w5MUI5Q1hab2ciLCJpZCI6IjExNTI0MDk1NDM0Njg1NTU4NjE2MSIsImNpZCI6IjI0Njg4OTY1NzQ4Ni5hcHBzLmdvb2dsZXVzZXJjb250ZW50LmNvbSIsImlhdCI6MTM1MzQwNTU5OSwiZXhwIjoxMzUzNDA5NDk5fQ.mGN3EYOX75gPubr3TqWIOBkfq-o3JBXMXx4MbxEBGMSuPdJi7VTqZa4isyR-st-J5_wTtA-j8tVQYnDeZDxj5KpJ14FFQPKTtv_VI5kvuT55KyOmGu4yidciYoffJMISisr8NqiksbemaiYX900sRv6PmoTA6Nf6VtHgj3BZjWo"
}