js获取项目路径

1.html中引入jquery.url.js

2.获取项目路径的js方法

function getContextPath() {
    var contextPath = "";
    var host = jQuery.url.attr('host');
    var protocol = jQuery.url.attr('protocol');
    var port = jQuery.url.attr('port');
    var path = jQuery.url.attr('path');
    if (port == null) {
        contextPath = protocol + '://' + host + '/' + path.split('/')[1];
    } else {
        contextPath = protocol + '://' + host + ':' + port + '/' + path.split('/')[1];
    }
    return contextPath;
}