百度地图地点搜索和鼠标点击地点获取经纬度，这些都是网页嵌入地图常见需求。
效果图如下：
Talk is cheap, show me the code ：
<!DOCTYPE html>
<html>
<head>
<meta charset=”utf-8″>
<meta name=”viewport” content=”initial-scale=1.0, maximum-scale=1.0, user-scalable=no” />
<meta name=”description” content=”百度地图地点搜索和鼠标点击地点获取经纬度，这些都是地图比较基本” />
<meta name=”keywords” content=”百度地图,地点搜索,获取经纬度,改变地图鼠标样式,启用滚轮缩放” />
<title>百度地图API地点搜索-获取经纬度DEMO</title>
<script type=”text/javascript” src=”http://api.map.baidu.com/api?v=1.2″></script>
<style type=”text/css”>
*{ font-family: “微软雅黑”;}
#where,#lat,#lng{ width:230px; height:22px; font-size:20px; color:blue;}
#but{ width:86px; height:28px; font-size:18px;}
</style>
</head><body>
<center>
<form>
<div style=” margin:auto;width:920px;height:600px;border:2px solid gray; margin-bottom:50px;” id=”container”></div>
<h3 style=”color: red;”>介绍：输入地点然后点击“地图查找”搜索，再点击地图地点获取相应经纬度</h3>
<label>输入地点：</label>
<input id=”where” name=”where” type=”text” placeholder=”请输入地址”>
<input id=”but” type=”button” value=”地图查找” onClick=”sear(document.getElementById(‘where’).value);” />
经度：<input id=”lng” name=”lng” type=”number” maxlength=”10″>
纬度：<input id=”lat” name=”lat” type=”number” maxlength=”9″>
</form>
</center>
</body>
</html>
<script type=”text/javascript”>
//如果经纬度没有给个默认值
var longitude=108.296202;
var latitude = 22.843957;var map = new BMap.Map(“container”);
map.setDefaultCursor(“crosshair”);
map.enableScrollWheelZoom();
var point = new BMap.Point(longitude,latitude);
map.centerAndZoom(point, 13);
var gc = new BMap.Geocoder();
map.addControl(new BMap.NavigationControl());
map.addControl(new BMap.OverviewMapControl());
map.addControl(new BMap.ScaleControl());
map.addControl(new BMap.MapTypeControl());
map.addControl(new BMap.CopyrightControl());
var marker = new BMap.Marker(point);
map.addOverlay(marker);
marker.addEventListener(“click”,
function(e) {
document.getElementById(“lng”).value = e.point.lng;
document.getElementById(“lat”).value = e.point.lat;
});
marker.enableDragging();
marker.addEventListener(“dragend”,
function(e) {
gc.getLocation(e.point,
function(rs) {
showLocationInfo(e.point, rs);
});
});
function showLocationInfo(pt, rs) {
var opts = {
width: 250,
height: 150,
title: “当前位置”
};
var addComp = rs.addressComponents;
var addr = “当前位置：” + addComp.province + “, ” + addComp.city + “, ” + addComp.district + “, ” + addComp.street + “, ” + addComp.streetNumber + “<br/>”;
addr += “纬度: ” + pt.lat + “, ” + “经度：” + pt.lng;
var infoWindow = new BMap.InfoWindow(addr, opts);
marker.openInfoWindow(infoWindow);
}
map.addEventListener(“click”,
function(e) {
document.getElementById(“lng”).value = e.point.lng;
document.getElementById(“lat”).value = e.point.lat;
});
var traffic = new BMap.TrafficLayer();
map.addTileLayer(traffic);
function iploac(result) {
var cityName = result.name;
}
var myCity = new BMap.LocalCity();
myCity.get(iploac);
function sear(result) {
var local = new BMap.LocalSearch(map, {
renderOptions: {
map: map
}
});
local.search(result);
}
</script>
以上，希望对各位网页开发者能有所帮助。
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