Try

函数post_to_url（url，obj）{let id=`form_${+new Date（）}`；文档.body.innerHTML+=`<form id=“${id}”action=“${url}”method=“POST”>$｛Object.keys（obj）.map（k=>`<input-type=“hidden”name=“${k}”value=“${obj[k]}”>`)}</form>`this[id].submit（）；}//TEST-在第二个参数对象中可以有更多的键函数jump（）｛post_to_url（'https://example.com/'，{'q'：'‘}）；}打开chrome>网络并按下按钮：<button onclick=“jump（）”>发送POST</button>

这将是使用jQuery选择的答案的一个版本。

// Post to the provided URL with the specified parameters.
function post(path, parameters) {
    var form = $('<form></form>');

    form.attr("method", "post");
    form.attr("action", path);

    $.each(parameters, function(key, value) {
        var field = $('<input></input>');

        field.attr("type", "hidden");
        field.attr("name", key);
        field.attr("value", value);

        form.append(field);
    });

    // The form needs to be a part of the document in
    // order for us to be able to submit it.
    $(document.body).append(form);
    form.submit();
}

我用来发布和引导用户自动到另一个页面的方法是只写一个隐藏表单，然后自动提交。请确保隐藏表单在网页上绝对不会占用空间。代码应该是这样的：

    <form name="form1" method="post" action="somepage.php">
    <input name="fielda" type="text" id="fielda" type="hidden">

    <textarea name="fieldb" id="fieldb" cols="" rows="" style="display:none"></textarea>
</form>
    document.getElementById('fielda').value="some text for field a";
    document.getElementById('fieldb').innerHTML="some text for multiline fieldb";
    form1.submit();

自动提交申请

自动提交的应用程序会将用户自动放入另一页的表单值引导回该页。此类应用程序如下所示：

fieldapost=<?php echo $_post['fielda'];>
if (fieldapost !="") {
document.write("<form name='form1' method='post' action='previouspage.php'>
  <input name='fielda' type='text' id='fielda' type='hidden'>
</form>");
document.getElementById('fielda').value=fieldapost;
form1.submit();
}

Prototype库包含一个Hashtable对象和一个“.toQueryString（）”方法，它允许您轻松地将JavaScript对象/结构转换为查询字符串样式的字符串。由于post要求请求的“主体”是查询字符串格式的字符串，这允许Ajax请求作为post正常工作。以下是使用原型的示例：

$req = new Ajax.Request("http://foo.com/bar.php",{
    method: 'post',
    parameters: $H({
        name: 'Diodeus',
        question: 'JavaScript posts a request like a form request',
        ...
    }).toQueryString();
};

FormObject是一个选项。但现在大多数浏览器都不支持FormObject。

我的解决方案将对深度嵌套的对象进行编码，这与@RakeshPai目前接受的解决方案不同。

它使用“qs”npm库及其字符串函数将嵌套对象转换为参数。

这段代码可以很好地与Rails后端配合使用，尽管您应该能够通过修改传递给stringify的选项来修改它，使其能够与您需要的任何后端配合使用。Rails要求将arrayFormat设置为“括号”。

import qs from "qs"

function normalPost(url, params) {
  var form = document.createElement("form");
  form.setAttribute("method", "POST");
  form.setAttribute("action", url);

  const keyValues = qs
    .stringify(params, { arrayFormat: "brackets", encode: false })
    .split("&")
    .map(field => field.split("="));

  keyValues.forEach(field => {
    var key = field[0];
    var value = field[1];
    var hiddenField = document.createElement("input");
    hiddenField.setAttribute("type", "hidden");
    hiddenField.setAttribute("name", key);
    hiddenField.setAttribute("value", value);
    form.appendChild(hiddenField);
  });
  document.body.appendChild(form);
  form.submit();
}

例子：

normalPost("/people/new", {
      people: [
        {
          name: "Chris",
          address: "My address",
          dogs: ["Jordan", "Elephant Man", "Chicken Face"],
          information: { age: 10, height: "3 meters" }
        },
        {
          name: "Andrew",
          address: "Underworld",
          dogs: ["Doug", "Elf", "Orange"]
        },
        {
          name: "Julian",
          address: "In a hole",
          dogs: ["Please", "Help"]
        }
      ]
    });

生成这些Rails参数：

{"authenticity_token"=>"...",
 "people"=>
  [{"name"=>"Chris", "address"=>"My address", "dogs"=>["Jordan", "Elephant Man", "Chicken Face"], "information"=>{"age"=>"10", "height"=>"3 meters"}},
   {"name"=>"Andrew", "address"=>"Underworld", "dogs"=>["Doug", "Elf", "Orange"]},
   {"name"=>"Julian", "address"=>"In a hole", "dogs"=>["Please", "Help"]}]}