后台用HttpContext.Request.Query["name1"]获得的是空串。

前端脚本是这样的：

function formPost(url,params){
var form = document.createElement("form");

form.action = url;
form.method = "post";
form.target = "_self";

form.style.display = "none";

var item = {
    name: '',
    value: ''
}
params = params !==undefined ? params : item;
//添加参数
for(var i in params){
    var opt = document.createElement("input");
	opt.name = params[i].name;
    opt.value = params[i].value;
    form.appendChild(opt); 

}

document.body.appendChild(form);

form.submit();

return form;
}

function start(){
var a = [{
name: "data11",
value: "value1"
}];
formPost('https://localhost:44329/Index/In',a);
}