JS获取当前地理位置方法

1. 手机定位

var getLocation = function (successFunc, errorFunc) { //successFunc获取定位成功回调函数，errorFunc获取定位失败回调
    //首先设置默认城市
    var defCity = {
        id: '000001',
        name: '北京市',
        date: curDateTime()//获取当前时间方法
    };
    //默认城市
    $.cookie('VPIAO_MOBILE_DEFAULTCITY', JSON.stringify(defCity), { expires: 1, path: '/' });
    if (navigator.geolocation) {
        navigator.geolocation.getCurrentPosition(function (position) {
            var lat = position.coords.latitude;
            var lon = position.coords.longitude;
            //var map = new BMap.Map("container");   // 创建Map实例
            var point = new BMap.Point(lon, lat); // 创建点坐标
            var gc = new BMap.Geocoder();
            gc.getLocation(point, function (rs) {
                var addComp = rs.addressComponents;
                var curCity = {
                    id: '',
                    name: addComp.province,
                    date: curDateTime()
                };
                //当前定位城市
                $.cookie('VPIAO_MOBILE_CURRENTCITY', JSON.stringify(curCity), { expires: 7, path: '/' });
                //alert(addComp.province + ", " + addComp.city + ", " + addComp.district + ", " + addComp.street);
                if (successFunc != undefined)
                    successFunc(addComp);
            });
        },
        function (error) {
            switch (error.code) {
                case 1:
                    alert("位置服务被拒绝。");
                    break;
                case 2:
                    alert("暂时获取不到位置信息。");
                    break;
                case 3:
                    alert("获取位置信息超时。");
                    break;
                default:
                    alert("未知错误。");
                    break;
            }
            var curCity = {
                id: '000001',
                name: '北京市',
                date: curDateTime()
            };
            //默认城市
            $.cookie('VPIAO_MOBILE_DEFAULTCITY', JSON.stringify(curCity), { expires: 1, path: '/' });
            if (errorFunc != undefined)
                errorFunc(error);
        }, { timeout: 5000, enableHighAccuracy: true });
    } else {
        alert("你的浏览器不支持获取地理位置信息。");
        if (errorFunc != undefined)
            errorFunc("你的浏览器不支持获取地理位置信息。");
    }
};
var showPosition = function (position) {
    var lat = position.coords.latitude;
    var lon = position.coords.longitude;
    //var map = new BMap.Map("container");   // 创建Map实例
    var point = new BMap.Point(lon, lat); // 创建点坐标
    var gc = new BMap.Geocoder();
    gc.getLocation(point, function (rs) {
        var addComp = rs.addressComponents;
        var curCity = {
            id: '',
            name: addComp.province,
            date: curDateTime()
        };
        //当前定位城市
        $.cookie('VPIAO_MOBILE_CURRENTCITY', JSON.stringify(curCity), { expires: 7, path: '/' });
        //alert(addComp.province + ", " + addComp.city + ", " + addComp.district + ", " + addComp.street);
    });
};
var showPositionError = function (error) {
    switch (error.code) {
        case 1:
            alert("位置服务被拒绝。");
            break;
        case 2:
            alert("暂时获取不到位置信息。");
            break;
        case 3:
            alert("获取位置信息超时。");
            break;
        default:
            alert("未知错误。");
            break;
    }
    var curCity = {
        id: '000001',
        name: '北京市',
        date: curDateTime()
    };
    //默认城市
    $.cookie('VPIAO_MOBILE_DEFAULTCITY', JSON.stringify(curCity), { expires: 1, path: '/' });
};

前提要引入百度API：<script src="http://api.map.baidu.com/api?v=1.4" type="text/javascript">script>

2.获取客户端IP方法

<script>
var url = 'http://chaxun.1616.net/s.php?type=ip&output=json&callback=?&_=' + Math.random();
            $.getJSON(url, function(data) {
                alert(data.Ip);
            });
script>