我正在使用以下代碼從我的數據庫中提取數據並用google地圖繪製點。我想要做的就是,「如果response = null,alert('empty')」,但每次我嘗試在代碼中使用它時,都會發生一些事情。如果任何人都可以提供任何可能的幫助。 這是我的代碼:Jquery ajax檢查結果是否爲空
<script type="text/javascript">
$(function()
{
var radius3 = localStorage.getItem("radius2");
var lat3 = localStorage.getItem("lat2");
var long3 = localStorage.getItem("long2");
var type2 = localStorage.getItem("type2");
var citya = localStorage.getItem("city2");
var rep2 = localStorage.getItem("rep2");
var size2 = localStorage.getItem("size2");
var status2 = localStorage.getItem("status2");
$.ajax({
url: 'http://examplecom/test/www/base_search.php',
data: "city2=" + city2 + "&rep2=" + rep2 + "&status2=" + status2 + "&size2=" + size2 + "&type2=" + type2 + "&long2=" + long2 + "&lat2=" + lat2 + "&radius2=" + radius2,
type: 'post',
dataType: 'json',
success: function (data) {
if (data) {
$.each(data, function (key, val) {
var lng = val['lng'];
var lat = val['lat'];
var id = val['id'];
var name = val['name'];
var address = val['address'];
var category = val['category'];
var city = val['city'];
var state = val['state'];
var rep = val['rep'];
var status = val['status'];
var size = val['size'];
$('div#google-map').gmap('addMarker', {
'position': new google.maps.LatLng(lat, lng),
'bounds': true,
'icon': 'images/hospital.png'
}).click(function() {
$('div#google-map').gmap('openInfoWindow', {
'backgroundColor': "rgb(32,32,32)",
'content': "<table><tr><td>Name:</td><td>" + name + "</td></tr><tr><td>Address:</td><td>" + address + ", " + city + " " + state + "</td></tr><tr><td>Category:</td><td>" + category + "</td></tr><tr><td>Rep:</td><td>" + rep + "</td></tr><tr><td>Status:</td><td>" + status + "</td></tr><tr><td>Size:</td><td>" + size + "</td></tr></table>"
}, this);
});
} else {
alert('hello');
}
}
})
}
});
})
}
</script>
你在哪裏放'if(data)'? – gpasci 2012-03-29 15:54:43
對不起,我只是更新了上面的代碼,我發佈了修改後的代碼 – 2012-03-29 16:00:37
它工作嗎?在腳本的末尾有一些嵌套錯誤 – gpasci 2012-03-29 16:04:55