java类方法中百度地图API java端调用百度地图api
\u600e\u6837\u5728java\u4e2d\u8c03\u7528\u767e\u5ea6\u5730\u56fe\u7684API\u767e\u5ea6\u5730\u56feWeb\u670d\u52a1API\u4e3a\u5f00\u53d1\u8005\u63d0\u4f9bhttp\u63a5\u53e3\uff0c\u5373\u5f00\u53d1\u8005\u901a\u8fc7http\u5f62\u5f0f\u53d1\u8d77\u68c0\u7d22\u8bf7\u6c42\uff0c\u83b7\u53d6\u8fd4\u56dejson\u6216xml\u683c\u5f0f\u7684\u68c0\u7d22\u6570\u636e\u3002
api\u5b98\u7f51\u8bf4\u660e\u94fe\u63a5:
http://developer.baidu.com/map/webservice.htm
1\u3001\u53ef\u7528\u63a5\u53e3\u5217\u4e3e:
\u83b7\u53d6\u76f8\u5173\u5730\u5740\u63d0\u793a place suggestion
http://api.map.baidu.com/place/v2/suggestion?query=\u6c34\u6749®ion=\u6210\u90fd&output=json&ak=42b8ececa9cd6fe72ae4cddd77c0da5d
2\u3001\u83b7\u53d6\u5750\u6807 geocoding
http://api.map.baidu.com/geocoder?address=\u9526\u6c5f\u533a\u83f1\u5b89\u8def299\u53f7&output=json&key=42b8ececa9cd6fe72ae4cddd77c0da5d
http://api.map.baidu.com/place/v2/search?ak=42b8ececa9cd6fe72ae4cddd77c0da5d&output=json&query=\u84dd\u5149coco\u91d1\u6c99&page_size=10&page_num=0&scope=1®ion=\u6210\u90fd
{
"status":0,
"message":"ok",
"total":2,
"results":[
{
"name":"\u84dd\u5149COCO\u91d1\u6c99",
"location":{
"lat":30.687544,
"lng":103.996691
},
"address":"\u897f\u4e09\u73af\u5916\u91d1\u6c99\u897f\u6e90\u5927\u9053\uff08IT\u5927\u9053\u65c1\uff09",
"uid":"223992992c5ee7e0841541df"
},
{
"name":"\u84dd\u5149COCO\u91d1\u6c992\u671f",
"location":{
"lat":30.681123,
"lng":103.991123
},
"address":"\u9752\u7f8a\u533a\u91d1\u6c99IT\u5927\u9053\u65c1",
"uid":"b7bb5abb1cd4982213293580"
}
]
}
3\u3001\u8bbe\u65bd\u5bfc\u822a
http://api.map.baidu.com/place/v2/search?ak=42b8ececa9cd6fe72ae4cddd77c0da5d&output=json&query=\u56fe\u4e66\u9986&page_size=20&page_num=0&scope=2®ion=\u6210\u90fd
4\u3001java\u6d4b\u8bd5\u7c7b\uff1a
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLEncoder;
import java.util.HashMap;
import java.util.Map;
public class LocationUtil {
private static final String BAIDU_APP_KEY = "42b8ececa9cd6fe72ae4cddd77c0da5d";
/**
* \u8fd4\u56de\u8f93\u5165\u5730\u5740\u7684\u7ecf\u7eac\u5ea6\u5750\u6807 key lng(\u7ecf\u5ea6),lat(\u7eac\u5ea6)
*/
public static Map getLatitude(String address) {
try {
// \u5c06\u5730\u5740\u8f6c\u6362\u6210utf-8\u768416\u8fdb\u5236
address = URLEncoder.encode(address, "UTF-8");
// \u5982\u679c\u6709\u4ee3\u7406\uff0c\u8981\u8bbe\u7f6e\u4ee3\u7406\uff0c\u6ca1\u4ee3\u7406\u53ef\u6ce8\u91ca
// System.setProperty("http.proxyHost","192.168.172.23");
// System.setProperty("http.proxyPort","3209");
URL resjson = new URL("http://api.map.baidu.com/geocoder?address="
+ address + "&output=json&key=" + BAIDU_APP_KEY);
BufferedReader in = new BufferedReader(new InputStreamReader(
resjson.openStream()));
String res;
StringBuilder sb = new StringBuilder("");
while ((res = in.readLine()) != null) {
sb.append(res.trim());
}
in.close();
String str = sb.toString();
System.out.println("return json:" + str);
if(str!=null&&!str.equals("")){
Map map = null;
int lngStart = str.indexOf("lng\":");
int lngEnd = str.indexOf(",\"lat");
int latEnd = str.indexOf("},\"precise");
if (lngStart > 0 && lngEnd > 0 && latEnd > 0) {
String lng = str.substring(lngStart + 5, lngEnd);
String lat = str.substring(lngEnd + 7, latEnd);
map = new HashMap();
map.put("lng", lng);
map.put("lat", lat);
return map;
}
}
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
public static void main(String args[]) {
Map map = LocationUtil.getLatitude("\u6210\u90fd \u9ad8\u65b0\u897f\u533a\u897f\u533a\u5927\u90531398\u53f7");
if (null != map) {
System.out.println(map.get("lng"));
System.out.println(map.get("lat"));
}
}
}
\u8c03google api\u5427\uff1a
\u4e0a\u9762\u5f15\u5165\u540e\uff0c
function initialize() {
var myLatlng = new google.maps.LatLng(29.678815, 121.426489);
var myOptions = {
zoom: 12,
center: myLatlng,
mapTypeId: google.maps.MapTypeId.ROADMAP
}
var map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);
var marker = new google.maps.Marker({
position: myLatlng,
map: map,
title: "Hello World!"
});
var rectangle = new google.maps.Rectangle();
var rectOptions = {
strokeColor: "#FF0000",
strokeOpacity: 0.8,
strokeWeight: 2,
fillColor: "#FF0000",
fillOpacity: 0.35,
map: map,
clickable:false,
bounds: map.getBounds()
};
var beginlatlng = ""; //\u8bb0\u5f55\u8d77\u59cb\u70b9\u5750\u6807
var endlatlng = ""; //\u8bb0\u5f55\u7ed3\u675f\u70b9\u5750\u6807
var rectBounds = "";
var SfClick = "";
var SfMove = "";
var ClickCount = 0; //\u70b9\u51fb\u6b21\u6570
SfClick = google.maps.event.addListener(map, 'click', function(e) {
var begin = e.latLng;
ClickCount++;
if (ClickCount == 1) {
SfMove = google.maps.event.addListener(map, "mousemove",function(e) {
beginlatlng = begin;
endlatlng = e.latLng;
rectOptions.bounds = new google.maps.LatLngBounds(beginlatlng, endlatlng);
rectOptions.map = map;
rectangle.setOptions(rectOptions);
});
} else {
google.maps.event.removeListener(SfMove);
if (window.confirm("ok")) {
ClickCount = 0;
alert('\u8d77\u59cb\u5750\u6807\u70b9' + beginlatlng + '\n\u7ed3\u675f\u5750\u6807\u70b9' + endlatlng)
} else {
ClickCount = 0;
rectOptions.map = null;
rectangle.setOptions(rectOptions);
}
}
});
}
api官网说明链接:
http://developer.baidu.com/map/webservice.htm
1、可用接口列举:
获取相关地址提示 place suggestion
http://api.map.baidu.com/place/v2/suggestion?query=水杉®ion=成都&output=json&ak=42b8ececa9cd6fe72ae4cddd77c0da5d
2、获取坐标 geocoding
http://api.map.baidu.com/geocoder?address=锦江区菱安路299号&output=json&key=42b8ececa9cd6fe72ae4cddd77c0da5d
http://api.map.baidu.com/place/v2/search?ak=42b8ececa9cd6fe72ae4cddd77c0da5d&output=json&query=蓝光coco金沙&page_size=10&page_num=0&scope=1®ion=成都
{
"status":0,
"message":"ok",
"total":2,
"results":[
{
"name":"蓝光COCO金沙",
"location":{
"lat":30.687544,
"lng":103.996691
},
"address":"西三环外金沙西源大道（IT大道旁）",
"uid":"223992992c5ee7e0841541df"
},
{
"name":"蓝光COCO金沙2期",
"location":{
"lat":30.681123,
"lng":103.991123
},
"address":"青羊区金沙IT大道旁",
"uid":"b7bb5abb1cd4982213293580"
}
]
}
3、设施导航
http://api.map.baidu.com/place/v2/search?ak=42b8ececa9cd6fe72ae4cddd77c0da5d&output=json&query=图书馆&page_size=20&page_num=0&scope=2®ion=成都
4、java测试类：
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLEncoder;
import java.util.HashMap;
import java.util.Map;
public class LocationUtil {
private static final String BAIDU_APP_KEY = "42b8ececa9cd6fe72ae4cddd77c0da5d";
/**
* 返回输入地址的经纬度坐标 key lng(经度),lat(纬度)
*/
public static Map<String, String> getLatitude(String address) {
try {
// 将地址转换成utf-8的16进制
address = URLEncoder.encode(address, "UTF-8");
// 如果有代理，要设置代理，没代理可注释
// System.setProperty("http.proxyHost","192.168.172.23");
// System.setProperty("http.proxyPort","3209");
URL resjson = new URL("http://api.map.baidu.com/geocoder?address="
+ address + "&output=json&key=" + BAIDU_APP_KEY);
BufferedReader in = new BufferedReader(new InputStreamReader(
resjson.openStream()));
String res;
StringBuilder sb = new StringBuilder("");
while ((res = in.readLine()) != null) {
sb.append(res.trim());
}
in.close();
String str = sb.toString();
System.out.println("return json:" + str);
if(str!=null&&!str.equals("")){
Map<String, String> map = null;
int lngStart = str.indexOf("lng\":");
int lngEnd = str.indexOf(",\"lat");
int latEnd = str.indexOf("},\"precise");
if (lngStart > 0 && lngEnd > 0 && latEnd > 0) {
String lng = str.substring(lngStart + 5, lngEnd);
String lat = str.substring(lngEnd + 7, latEnd);
map = new HashMap<String, String>();
map.put("lng", lng);
map.put("lat", lat);
return map;
}
}
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
public static void main(String args[]) {
Map<String, String> map = LocationUtil.getLatitude("成都 高新西区西区大道1398号");
if (null != map) {
System.out.println(map.get("lng"));
System.out.println(map.get("lat"));
}
}
}
那具体要看百度开了什么接口给你了，你要仔细研究下帮助文档。
百度地图的开放接口好像都是js的吧~没具体研究过
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