WebAPI传参

1.GET请求传递参数

URL传参：http://localhost/ApiTest/test?id=1

API接收参数

[HttpGet]

public string GetUser(int id) { return "User:" + id; }

传递JSON对象：

$.ajax({

type: "get",

url: "http://localhost/ApiTest/test",

contentType: "application/json",

data: { id: "1" },

success: function (data, status) { if (status == "success") { $("#div_test").html(data); } }

});

API接收参数

[HttpGet]

public string GetUser([FromUri]UserDto obj) { return "User:" + obj.id; }

如果你不想使用[FromUri]这些在参数里面加特性的这种“怪异”写法，也可以采用先序列化，再在后台反序列的方式。

$.ajax({
type: "get",
url: "http://localhost:27221/api/Charging/GetByModel",
contentType: "application/json",
data: { strQuery: JSON.stringify({ ID: "1", NAME: "Jim", CREATETIME: "1988-09-11" }) },
success: function (data, status) {
if (status == "success") {
$("#div_test").html(data);
}
}
});

[HttpGet]

public string GetByModel(string strQuery)

{

TB_CHARGING oData = Newtonsoft.Json.JsonConvert.DeserializeObject<TB_CHARGING>(strQuery);

return "ChargingData" + oData.ID;

}

注意：方法名以Get开头，WebApi会自动默认这个请求就是get请求，而如果你以其他名称开头而又不标注方法的请求方式，那么这个时候服务器虽然找到了这个方法，但是由于请求方式不确定，所以直接返回给你405——方法不被允许的错误。

POST传参：

单个参数：

$.ajax({
type: "post",
url: "http://localhost:27221/api/Charging/SaveData",
data: { "": "Jim" },
success: function (data, status) {}
});
[HttpPost]
public bool SaveData([FromBody]string NAME){return true;}

多个参数，使用dynamic：

$.ajax({
type: "post",
url: "http://localhost:27221/api/Charging/SaveData",
contentType: 'application/json',
data: JSON.stringify({ NAME: "Jim",DES:"备注" }),
success: function (data, status) {}
});
[HttpPost]
public object SaveData(dynamic obj){var strName = Convert.ToString(obj.NAME);return strName;}

传递集合：

var arr = [
{ ID: "1", NAME: "Jim", CREATETIME: "1988-09-11" },
{ ID: "2", NAME: "Lilei", CREATETIME: "1990-12-11" },
{ ID: "3", NAME: "Lucy", CREATETIME: "1986-01-10" }
];
$.ajax({
type: "post",
url: "http://localhost:27221/api/Charging/SaveData",
contentType: 'application/json',
data: JSON.stringify(arr),
success: function (data, status) {}
});

[HttpPost]
public bool SaveData(List<TB_CHARGING> lstCharging)
{
return true;
}

来源：http://www.cnblogs.com/landeanfen/p/5337072.html