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首先需要申請一個百度地圖的javascript用戶端應用，為產生一個認證的key,然後用這個key來調用百度地圖的javascript介面，
如果我們需要根據地名來尋找某一個景點，想擷取該景點的座標，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,設定城市和地圖層級。 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) { //滑鼠放在下拉式清單上的事件 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) { //滑鼠點擊下拉式清單後的事件 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; //擷取第一個智能搜尋的結果 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儲存起來。 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, { //智能搜尋 onSearchComplete: myFun }); local.search(myValue); }</script>
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