java调用google map api 根据经纬度读取经纬度地址

package B7.general;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;

import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.HttpException;
import org.apache.commons.httpclient.HttpMethod;
import org.apache.commons.httpclient.NameValuePair;
import org.apache.commons.httpclient.methods.GetMethod;
import org.apache.commons.httpclient.methods.PostMethod;
import org.json.JSONException;

public class HttpRequestUtil {

	public static String getRequestByUrl(String strurl){
        String strjson = "";
		try {
			URL url = new URL(strurl);
	        URLConnection conn = url.openConnection();
	        HttpURLConnection http = (HttpURLConnection)conn;
	        http.setRequestMethod("GET");
	        http.setDoInput(true);
	        http.setDoOutput(true);
	        http.connect();
	        InputStream in = http.getInputStream();
	        BufferedReader br = new BufferedReader(new InputStreamReader(in,"UTF-8"));
	        String s = null;
	        while((s = br.readLine()) != null) {
	        	strjson+=s;
	        }
	        br.close();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} 
		return strjson;
	}



	private static HttpMethod getGetMethod(String latlng) throws IOException {
		PostMethod post = new PostMethod("/maps/api/geocode/json");
		GetMethod get = new GetMethod("/maps/api/geocode/json");

		NameValuePair simcard = new NameValuePair("latlng", latlng);
		NameValuePair simcard1 = new NameValuePair("sensor", "false");
		NameValuePair simcard2 = new NameValuePair("language", "zh-CN");
		get.setQueryString(new NameValuePair[] { simcard, simcard1,simcard2});

		//InputStream input = new FileInputStream(new File("/home/ubuntu/my.txt"));
		//"".getBytes("ISO8859-1")
		//InputStream input = new StringBufferInputStream("my test aaaaaaaaaa");
		//post.setRequestBody(input);
		return get;
	}
	private static HttpMethod getPostMethod(String latlng) throws IOException {
		PostMethod post = new PostMethod("/maps/api/geocode/json");

		//latlng=40.714224,-73.961452&sensor=false&&language=zh-TW
		NameValuePair simcard = new NameValuePair("latlng", latlng);
		NameValuePair simcard1 = new NameValuePair("sensor", "false");
		NameValuePair simcard2 = new NameValuePair("language", "zh-CN");

		post.setRequestBody(new NameValuePair[] { simcard, simcard1,simcard2});
		//InputStream input = new FileInputStream(new File("/home/ubuntu/my.txt"));
		//"".getBytes("ISO8859-1")
		//InputStream input = new StringBufferInputStream("my test aaaaaaaaaa");
		//post.setRequestBody(input);
		return post;
	}

	/**
	 * 根据经纬度获取地址
	 * @param latlng
	 * @return
	 */
	public static  String getGoogleAddressBylatlng(String latlng){
		String strAddress = "";
		HttpClient client = new  HttpClient();
		client.getHostConfiguration().setHost("ditu.google.com", 80, "http");

		HttpMethod method = null;
		try {
			method = getGetMethod(latlng);
		} catch (IOException e1) {
			// TODO Auto-generated catch block
			e1.printStackTrace();
		}// 使用GET方式提交数据
		try {
			client.executeMethod(method);
		} catch (HttpException e1) {
			// TODO Auto-generated catch block
			e1.printStackTrace();
		} catch (IOException e1) {
			// TODO Auto-generated catch block
			e1.printStackTrace();
			return "获取经纬度地址异常";
		}
		// 打印服务器返回的状态
		int methodstatus = method.getStatusCode();
		StringBuffer sb = new StringBuffer();
		if(methodstatus == 200){
			try {
				BufferedReader rd = new BufferedReader(new InputStreamReader(method.getResponseBodyAsStream(),"UTF-8"));
				String line;
				while ((line = rd.readLine()) != null) {
					sb.append(line);

				}
				org.json.JSONObject jo;
				try {
					jo = new org.json.JSONObject(sb.toString());
			        org.json.JSONArray ja = jo.getJSONArray("results");
			        org.json.JSONObject jo1 = ja.getJSONObject(0);
			        System.out.println(jo1.getString("formatted_address"));
			        strAddress = jo1.getString("formatted_address");
				} catch (JSONException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				}
				rd.close();
			}catch (IOException e) {
				throw new RuntimeException("error", e);
			}
		}
		method.releaseConnection();
		return strAddress;
	}

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		String str = getRequestByUrl("http://ditu.google.com/maps/api/geocode/json?latlng=31.1899209667,121.3918055000&sensor=false&&language=zh-CN");
		System.out.println(str);
		String strhttp = HttpRequestUtil.getGoogleAddressBylatlng("31.1899209667,121.3918055000");
		System.out.println(strhttp);
	}

}