我如何从Ajax调用Web API控制器 [英] how can i call web api Controller from ajax

问题描述

我是使用Web API的ASP MVC的初学者.

I am a beginner of ASP MVC with web api.

通过使用以下代码，我试图调用一个在控制器上编写的函数.为了进行检查，我使用了断点，因此控件无法转到控制器，因此我无法真正跟踪正在发生的事情.

By using below codes I tried to call a function which is written at the controller. For checking I used breakpoint so the control could not go to the controller so that I can not track actually what is going on.

给定的代码说明了如何将用户名和密码传递给控制器​​:

The given code explains how to pass username and password to the controller:

<script type="text/javascript">
function Login() {
var Login = {};
Login.username = document.getElementById("txtUserName").value;
Login.password = document.getElementById("txtPassword").value;
$.ajax({

URL: 'api/Login/' + Login,
type: 'POST',
dataType: 'json',
contentType: 'application/json; charset=utf-8',
data: JSON.stringify(Login),
success: function (data) {

alert("Saved successfully");
}
})
}
</script>

这是我过去通过的控制器

This is the controller which i used to pass

public class LoginController : ApiController
{
[HttpPost]
public void  Login(Login  login)
{
string user = login.UserName.ToString();
string password = login.Password.ToString();
}

}

推荐答案

基本上，这是URL与url区分大小写的问题，结合了一些不必要的工作.因此，将脚本更改为:

Basically it's a case sensitivity problem on URL vs url combined with some unnecessary work. So change your script to:

<script type="text/javascript">
    function Login() {

      var Login = {};
      Login.username = $("#txtUserName").val();
      Login.password = $("#txtPassword").val();

      $.ajax({
         url: '/api/Login/',
         method: 'POST',
         dataType: 'json',
         contentType: 'application/json; charset=utf-8',
         data: Login,
         success: function (data) {
          alert("Saved successfully");
         },
        fail : function( jqXHR, textStatus ) {
          alert( "Request failed: " + textStatus );
        }
     })
  }
</script>

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