The difference between get and post

Back button / Refresh ：GET It's harmless , however POST The data will be resubmitted （ The browser should inform the user that the data will be resubmitted ）

Bookmarks ;GET It can be bookmarked ,POST You can't

cache ：GET Can be cached ,POST Can't be cached .

history ： Parameters remain in browser history ,POST Will not be saved in the browser history .

Security ：GET The security of is relatively poor , Because the data sent is URL Part of ,POST The parameters of will not be saved in the browser history or WEB In the server log . therefore POST It's more secure .

Restrictions on data types ：GET Only ASCII character ,POST There is no limit to , Binary data is also allowed .