首先需要申請一個百度地圖的javascript客戶端應用，爲生成一個認證的key,然後用這個key來調用百度地圖的javascript接口，
如果我們需要根據地名來查找某一個景點，想獲取該景點的座標，可以參考一下代碼
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
<style type="text/css">
body, html{width: 100%;height: 100%;margin:0;font-family:"微軟雅黑";font-size:14px;}
#l-map{height:300px;width:100%;}
#r-result{width:100%;}
</style>
<script type="text/javascript" src="http://api.map.baidu.com/api?v=2.0&ak=pv3T1ZsUDn5kodG5UBCewhgt2345"></script>
<title>關鍵字輸入提示詞條</title>
</head>
<body>
<div id="l-map"></div>
<div id="r-result">請輸入:<input type="text" id="suggestId" size="20" value="百度" style="width:150px;" /></div>
<div id="searchResultPanel" style="border:1px solid #C0C0C0;width:150px;height:auto; display:none;"></div>
</body>
</html>
<script type="text/javascript">
// 百度地圖API功能
function G(id) {
return document.getElementById(id);
}
var map = new BMap.Map("l-map");
map.centerAndZoom("北京",12); // 初始化地圖,設置城市和地圖級別。
var ac = new BMap.Autocomplete( //建立一個自動完成的對象
{"input" : "suggestId"
,"location" : map
});
ac.addEventListener("onhighlight", function(e) { //鼠標放在下拉列表上的事件
var str = "";
var _value = e.fromitem.value;
var value = "";
if (e.fromitem.index > -1) {
value = _value.province + _value.city + _value.district + _value.street + _value.business;
}
str = "FromItem<br />index = " + e.fromitem.index + "<br />value = " + value;
value = "";
if (e.toitem.index > -1) {
_value = e.toitem.value;
value = _value.province + _value.city + _value.district + _value.street + _value.business;
}
str += "<br />ToItem<br />index = " + e.toitem.index + "<br />value = " + value;
alert("onhighlight");
G("searchResultPanel").innerHTML = str;
});
var myValue;
ac.addEventListener("onconfirm", function(e) { //鼠標點擊下拉列表後的事件
var _value = e.item.value;
myValue = _value.province + _value.city + _value.district + _value.street + _value.business;
G("searchResultPanel").innerHTML ="onconfirm<br />index = " + e.item.index + "<br />myValue = " + myValue;
alert("onconfirm");
setPlace();
});
function setPlace(){
map.clearOverlays(); //清除地圖上所有覆蓋物
function showInfo(e) {
alert(e.point.lng+","+e.point.lat);
}
function myFun(){
if(confirm('確認要將該地點納入路線圖嗎？')) {
var current = local.getResults().getPoi(0);
console.log(current);
var point = {};
if (typeof(current) == "object" && current.title !="") {
// point.name = current.title;
point.name = myValue;
}
var pp = current.point; //獲取第一個智能搜索的結果
console.log(pp);
point.lng = pp.lng;
point.lat = pp.lat;
console.log(point);
//如果選中了，可以考慮將此地址以及座標保存起來。
map.centerAndZoom(pp, 18);
map.addOverlay(new BMap.Marker(pp)); //添加標註
//添加文本標註
var opts = {position:pp,offset:new BMap.Size(10,-30)};
var label = new BMap.Label(current.title, opts);
label.setStyle({
color:"red",
fontSize:"12px",
height:"20px",
lineheight:"20px",
fontFamily:"微軟雅黑"
});
map.addOverlay(label);
// map.addEventListener('click',showInfo);
}
}
var local = new BMap.LocalSearch(map, { //智能搜索
onSearchComplete: myFun
});
local.search(myValue);
}
</script>