jQuery插件，用于POST或GET重定向：

https://github.com/mgalante/jquery.redirect/blob/master/jquery.redirect.js

要进行测试，请包含上述.js文件或将类复制/粘贴到代码中，然后使用此处的代码，将“args”替换为变量名，将“value”替换为这些变量的值：

$.redirect('demo.php', {'arg1': 'value1', 'arg2': 'value2'});

如果安装了Prototype，则可以收紧代码以生成和提交隐藏表单，如下所示：

 var form = new Element('form',
                        {method: 'post', action: 'http://example.com/'});
 form.insert(new Element('input',
                         {name: 'q', value: 'a', type: 'hidden'}));
 $(document.body).insert(form);
 form.submit();

这是rakesh的答案，但支持数组（这在形式上很常见）：

纯javascript：

function post_to_url(path, params, method) {
    method = method || "post"; // Set method to post by default, if not specified.

    // The rest of this code assumes you are not using a library.
    // It can be made less wordy if you use one.
    var form = document.createElement("form");
    form.setAttribute("method", method);
    form.setAttribute("action", path);

    var addField = function( key, value ){
        var hiddenField = document.createElement("input");
        hiddenField.setAttribute("type", "hidden");
        hiddenField.setAttribute("name", key);
        hiddenField.setAttribute("value", value );

        form.appendChild(hiddenField);
    }; 

    for(var key in params) {
        if(params.hasOwnProperty(key)) {
            if( params[key] instanceof Array ){
                for(var i = 0; i < params[key].length; i++){
                    addField( key, params[key][i] )
                }
            }
            else{
                addField( key, params[key] ); 
            }
        }
    }

    document.body.appendChild(form);
    form.submit();
}

哦，这里是jquery版本：（代码略有不同，但归结起来是相同的）

function post_to_url(path, params, method) {
    method = method || "post"; // Set method to post by default, if not specified.

    var form = $(document.createElement( "form" ))
        .attr( {"method": method, "action": path} );

    $.each( params, function(key,value){
        $.each( value instanceof Array? value : [value], function(i,val){
            $(document.createElement("input"))
                .attr({ "type": "hidden", "name": key, "value": val })
                .appendTo( form );
        }); 
    } ); 

    form.appendTo( document.body ).submit(); 
}

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

好吧，希望我读过所有其他帖子，这样我就不会浪费时间从Rakesh Pai的回答中创建这些帖子了。这里有一个递归解决方案，可以处理数组和对象。不依赖jQuery。

添加了一个段来处理整个表单应该像数组一样提交的情况。（即，项目列表周围没有包装对象）

/**
 * Posts javascript data to a url using form.submit().  
 * Note: Handles json and arrays.
 * @param {string} path - url where the data should be sent.
 * @param {string} data - data as javascript object (JSON).
 * @param {object} options -- optional attributes
 *  { 
 *    {string} method: get/post/put/etc,
 *    {string} arrayName: name to post arraylike data.  Only necessary when root data object is an array.
 *  }
 * @example postToUrl('/UpdateUser', {Order {Id: 1, FirstName: 'Sally'}});
 */
function postToUrl(path, data, options) {
    if (options === undefined) {
        options = {};
    }

    var method = options.method || "post"; // Set method to post by default if not specified.

    var form = document.createElement("form");
    form.setAttribute("method", method);
    form.setAttribute("action", path);

    function constructElements(item, parentString) {
        for (var key in item) {
            if (item.hasOwnProperty(key) && item[key] != null) {
                if (Object.prototype.toString.call(item[key]) === '[object Array]') {
                    for (var i = 0; i < item[key].length; i++) {
                        constructElements(item[key][i], parentString + key + "[" + i + "].");
                    }
                } else if (Object.prototype.toString.call(item[key]) === '[object Object]') {
                    constructElements(item[key], parentString + key + ".");
                } else {
                    var hiddenField = document.createElement("input");
                    hiddenField.setAttribute("type", "hidden");
                    hiddenField.setAttribute("name", parentString + key);
                    hiddenField.setAttribute("value", item[key]);
                    form.appendChild(hiddenField);
                }
            }
        }
    }

    //if the parent 'data' object is an array we need to treat it a little differently
    if (Object.prototype.toString.call(data) === '[object Array]') {
        if (options.arrayName === undefined) console.warn("Posting array-type to url will doubtfully work without an arrayName defined in options.");
        //loop through each array item at the parent level
        for (var i = 0; i < data.length; i++) {
            constructElements(data[i], (options.arrayName || "") + "[" + i + "].");
        }
    } else {
        //otherwise treat it normally
        constructElements(data, "");
    }

    document.body.appendChild(form);
    form.submit();
};

@Aaron回答的一个简单而快速的实现：

document.body.innerHTML += '<form id="dynForm" action="http://example.com/" method="post"><input type="hidden" name="q" value="a"></form>';
document.getElementById("dynForm").submit();

当然，您应该使用JavaScript框架，如Prototype或jQuery。。。