javascript - 一般登陆的时候提交用form表单提交好？还是用ajax好？
想问下在登陆页面的时候使用form表单提交好还是用ajax提交好？
如果是用安全性来区分的话，应该首选哪个？
还有就是form表单和ajax的用途？什么时候该用form什么时候该用ajax？
回复内容：
想问下在登陆页面的时候使用form表单提交好还是用ajax提交好？
如果是用安全性来区分的话，应该首选哪个？
还有就是form表单和ajax的用途？什么时候该用form什么时候该用ajax？
安全性都一样。
安全性与你的提交文件的业务处理（格式检测，防注入）有关，与提交方式无关。
通常表单提交，ajax通常用在浏览查看，操作小部件等提高用户体验
本人比较习惯用Ajax，Ajax提交是通过js来提交请求，请求与响应均由js引擎来处理，页面不会刷新。对于登陆功能，如果用户输入的用户名或密码错误，则可以在相应的页面给出错误提示。
楼上说的没错
建议用ajax吧，这样可以不刷新整个页面，达到局部刷新的效果
这个和安全性没有关系，都是发送的http协议，form表单与ajax提交都行，你想要什么用户体验，就用那种。
纯 ajax 会有个隐藏的问题 那就是浏览器不提示保存密码 这个在用户体验上我看来是反人类的
理想的ajax方式：
建立隐藏的iframe 把form标签的 target指向iframe，然后检测 iframe 的状态
难道不是看需求嘛。
有的登录表单和登录后页面不是在一个页面啊
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