javaScript使用post方式代替window.location.href

/**
 * @author lwh
 * @param {} url
 * @param {} params
 */
function mypost(url, params) { 
    // 创建form
    var temp_form = document.createElement("form");
    // 设置form
    temp_form .action = url;      
    temp_form .target = "_self";
    temp_form .method = "post";      
    temp_form .style.display = "none";
    // 处理需要传递的参数 
    for (var x in params) { 
        var opt = document.createElement("textarea");      
        opt.name = x;      
        opt.value = params[x];      
        temp_form .appendChild(opt);      
    }      
    document.body.appendChild(temp_form);
    // 提交表单      
    temp_form .submit();     
} 

 var  url=contextPath+"xxxxxx.action";
     mypost(url,{
	 param1:value1,
         param2:value2,
         ......
         paramN：valueN
     });