java代码根据经纬度从百度地图api获取位置,java发送get请求

public class GetLocationBaiduMap {
	
	public static void main(String[] args) {
		String lat="31.931349213122";
		String lng="120.96189745647";
		 
	//	System.out.println(System.getProperty("file.encoding"));  
		
		try {
			String s=getLocationByBaiduMap(lng, lat);
			System.out.println(s);
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		
	}
	
	
	public static String getLocationByBaiduMap(String longitude,String latitude) throws Exception {
		System.out.println("--------------"+longitude+"-----------------");
		System.out.println("--------------"+latitude+"-----------------");
		String locJson=geturl("http://api.map.baidu.com/geoconv/v1/?coords=" + longitude + "," +latitude + "&from=1&to=5&ak=5415646413");
		//System.out.println(locJson);
	 	JSONObject jobject =  JSON.parseObject(locJson);
		JSONArray jsonArray = jobject.getJSONArray("result");
		String lat=jsonArray.getJSONObject(0).getString("y");
		String lng=jsonArray.getJSONObject(0).getString("x");
		//System.out.println(lat);
		String addrJson = geturl("http://api.map.baidu.com/geocoder/v2/?ak=4684645464&location=" + lat + "," + lng + "&output=json&pois=1");
		System.out.println(addrJson);
		JSONObject jobjectaddr =  JSON.parseObject(addrJson);
		//JSONObject rJsonObject=jobjectaddr.getJSONObject("result");
		//System.out.println(rJsonObject);
		String addr=jobjectaddr.getJSONObject("result").getString("formatted_address");
		//addr=(String) JSON.parseObject(addr).get("city");
		//addr=new String(addr.getBytes("gbk"),"UTF-8");
		return addr;
	}
	//{"addressComponent":{"adcode":"320612","city":"南通市","city_level":2,"country":"中国","country_code":0,"country_code_iso":"CHN","country_code_iso2":"CN","direction":"","distance":"","district":"通州区","province":"江苏省","street":"长通路","street_number":"","town":""},"business":"","cityCode":161,"formatted_address":"江苏省南通市通州区长通路","location":{"lat":31.93105317856547,"lng":120.96189662538525},"poiRegions":[],"pois":[{"addr":"惠泽路与长通路交叉口东南150米","cp":" ","direction":"西南","distance":"53","name":"南通高新技术创业服务中心C座","parent_poi":{"addr":"惠泽路与长通路交叉口东150米","direction":"西南","distance":"150","name":"南通高新技术创业服务中心","point":{"x":120.96296334228969,"y":31.931761377621539},"tag":"公司企业;园区","uid":"849be02e396bfeaac91b95aa"},"poiType":"房地产","point":{"x":120.9622446978817,"y":31.93134001354758},"tag":"房地产;写字楼","tel":"","uid":"f112225ba25266f1acee7a4d","zip":""},{"addr":"南通市通盛大道","cp":" ","direction":"西南","distance":"132","name":"世界之窗B座","parent_poi":{"addr":"","direction":"","distance":"","name":"","point":{"x":0.0,"y":0.0},"tag":"","uid":""},"poiType":"房地产","point":{"x":120.96298130839988,"y":31.931470253560478},"tag":"房地产;写字楼","tel":"","uid":"b6a3354be42ff5c3af04575a","zip":""},{"addr":"高新技术创业服务中心B座","cp":" ","direction":"西","distance":"139","name":"南通高新技术创业服务中心B座","parent_poi":{"addr":"惠泽路与长通路交叉口东150米","direction":"西南","distance":"150","name":"南通高新技术创业服务中心","point":{"x":120.96296334228969,"y":31.931761377621539},"tag":"公司企业;园区","uid":"849be02e396bfeaac91b95aa"},"poiType":"房地产","point":{"x":120.96310707117128,"y":31.931324691180877},"tag":"房地产;写字楼","tel":"","uid":"469e15180e64cfbe4d554731","zip":""},{"addr":"惠泽路与长通路交叉口东150米","cp":" ","direction":"西南","distance":"150","name":"南通高新技术创业服务中心","parent_poi":{"addr":"","direction":"","distance":"","name":"","point":{"x":0.0,"y":0.0},"tag":"","uid":""},"poiType":"公司企业","point":{"x":120.96296334228969,"y":31.931761377621539},"tag":"公司企业;园区","tel":"","uid":"849be02e396bfeaac91b95aa","zip":""},{"addr":"南通市崇川区通盛大道188号","cp":" ","direction":"南","distance":"165","name":"通兑大厦","parent_poi":{"addr":"","direction":"","distance":"","name":"","point":{"x":0.0,"y":0.0},"tag":"","uid":""},"poiType":"房地产","point":{"x":120.96241537592859,"y":31.932244028619185},"tag":"房地产;写字楼","tel":"","uid":"958b6228161c9efe6140a976","zip":""},{"addr":"经济开发区通盛大道188号","cp":" ","direction":"南","distance":"166","name":"开发区创业外包服务中心","parent_poi":{"addr":"","direction":"","distance":"","name":"","point":{"x":0.0,"y":0.0},"tag":"","uid":""},"poiType":"政府机构","point":{"x":120.96240639287349,"y":31.9322516897255},"tag":"政府机构;行政单位","tel":"","uid":"a90b125fccbbafe24e5547d3","zip":""},{"addr":"通盛大道188号","cp":" ","direction":"西南","distance":"169","name":"世界之窗科技创意园","parent_poi":{"addr":"","direction":"","distance":"","name":"","point":{"x":0.0,"y":0.0},"tag":"","uid":""},"poiType":"公司企业","point":{"x":120.96307113895088,"y":31.931883955895075},"tag":"公司企业;园区","tel":"","uid":"3f1eeec7f18bcbeb80a00c69","zip":""},{"addr":"南通市崇川区长川路1号","cp":" ","direction":"东","distance":"175","name":"携程信息技术大楼","parent_poi":{"addr":"","direction":"","distance":"","name":"","point":{"x":0.0,"y":0.0},"tag":"","uid":""},"poiType":"房地产","point":{"x":120.96033130714544,"y":31.930903325085948},"tag":"房地产;写字楼","tel":"","uid":"81c203b13abeed1ffa0cad44","zip":""},{"addr":"江苏省南通市崇川区长川路携程信息技术大楼1层","cp":" ","direction":"东","distance":"192","name":"帝伟罗邦","parent_poi":{"addr":"南通市崇川区长川路1号","direction":"东","distance":"175","name":"携程信息技术大楼","point":{"x":120.96033130714544,"y":31.930903325085948},"tag":"房地产;写字楼","uid":"81c203b13abeed1ffa0cad44"},"poiType":"购物","point":{"x":120.96020554437405,"y":31.93075010056795},"tag":"购物;家居建材","tel":"","uid":"4adeeaf5713b572fede4a50f","zip":""},{"addr":"南通市开发区新开街道惠泽路能达金融广场(鑫湖国贸中心南)","cp":" ","direction":"西","distance":"263","name":"国家电网充电站(能达金融广场)","parent_poi":{"addr":"","direction":"","distance":"","name":"","point":{"x":0.0,"y":0.0},"tag":"","uid":""},"poiType":"交通设施","point":{"x":120.96426588527915,"y":31.931048888139203},"tag":"交通设施;充电站","tel":"","uid":"d5d1421f67aadfdbadee7a04","zip":""}],"roads":[],"sematic_description":"南通高新技术创业服务中心C座西南53米"}
	private static String geturl(String geturl) throws Exception {
        //请求的webservice的url
        URL url = new URL(geturl);
        //创建http链接
        HttpURLConnection httpURLConnection = (HttpURLConnection) url.openConnection();
    
        //设置请求的方法类型
        httpURLConnection.setRequestMethod("POST");
        
        //设置请求的内容类型
        httpURLConnection.setRequestProperty("Content-type", "application/x-www-form-urlencoded");
        
        //设置发送数据
        httpURLConnection.setDoOutput(true);
        //设置接受数据
        httpURLConnection.setDoInput(true);
        
        //发送数据,使用输出流
        OutputStream outputStream = httpURLConnection.getOutputStream();
        //发送的soap协议的数据
    //    String requestXmlString = requestXml("北京");
    
        String content = "user_id="+ URLEncoder.encode("13846", "utf-8");
        
        //发送数据
        outputStream.write(content.getBytes());
    
        //接收数据
        InputStream inputStream = httpURLConnection.getInputStream();
        BufferedReader in = new BufferedReader(new InputStreamReader(inputStream, "UTF-8"));  
        StringBuffer buffer = new StringBuffer();  
        String line = "";  
        while ((line = in.readLine()) != null){  
          buffer.append(line);  
        }  
       String str = buffer.toString();  
        
        return str;
    }
	
	
	
	
	
	
	
}