本文转自:http://www.apkbus.com/forum.php?mod=viewthread&tid=130732
需求详情:
1)、Service中每隔1秒执行一次定位操作(GPS+基站)2)、定位的结果实时显示在界面上(要求得到经度、纬度)
技术支持:
1)、获取经纬度
通过GPS+基站获取经纬度,先通过GPS来获取,如果为空改用基站进行获取–>GPS+基站(基站获取支持联通、电信、移动)。
2)、实时获取经纬度
为了达到实时获取经纬度,需在后台启动获取经纬度的Service,然后把经纬度数据通过广播发送出去,在需要的地方进行广播注册(比如在Activity中注册广播,显示在界面中)–>涉及到Service+BroadcastReceiver+Activity+Thread等知识点。
备注:本文注重实践,如有看不懂的,先去巩固下知识点,可以去看看我前面写的几篇文章。
1、CellInfo实体类–>基站信息
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package com.ljq.activity;
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/**
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* 基站信息
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*
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* @author jiqinlin
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*
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*/
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public class CellInfo {
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/** 基站id,用来找到基站的位置 */
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private int cellId;
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/** 移动国家码,共3位,中国为460,即imsi前3位 */
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private String mobileCountryCode="460";
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/** 移动网络码,共2位,在中国,移动的代码为00和02,联通的代码为01,电信的代码为03,即imsi第4~5位 */
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private String mobileNetworkCode="0";
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/** 地区区域码 */
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private int locationAreaCode;
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/** 信号类型[选 gsm|cdma|wcdma] */
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private String radioType="";
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public CellInfo() {
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}
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public int getCellId() {
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return cellId;
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}
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public void setCellId(int cellId) {
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this.cellId = cellId;
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}
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public String getMobileCountryCode() {
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return mobileCountryCode;
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}
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public void setMobileCountryCode(String mobileCountryCode) {
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this.mobileCountryCode = mobileCountryCode;
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}
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public String getMobileNetworkCode() {
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return mobileNetworkCode;
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}
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public void setMobileNetworkCode(String mobileNetworkCode) {
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this.mobileNetworkCode = mobileNetworkCode;
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}
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public int getLocationAreaCode() {
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return locationAreaCode;
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}
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public void setLocationAreaCode(int locationAreaCode) {
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this.locationAreaCode = locationAreaCode;
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}
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public String getRadioType() {
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return radioType;
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}
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public void setRadioType(String radioType) {
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this.radioType = radioType;
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}
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- }
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package com.ljq.activity;
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import android.content.Context;
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import android.location.Criteria;
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import android.location.Location;
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import android.location.LocationListener;
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import android.location.LocationManager;
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import android.os.Bundle;
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public class Gps{
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private Location location = null;
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private LocationManager locationManager = null;
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private Context context = null;
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/**
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* 初始化
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*
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* @param ctx
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*/
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public Gps(Context ctx) {
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context=ctx;
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locationManager=(LocationManager)context.getSystemService(Context.LOCATION_SERVICE);
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location = locationManager.getLastKnownLocation(getProvider());
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locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 2000, 10, locationListener);
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}
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// 获取Location Provider
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private String getProvider() {
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// 构建位置查询条件
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Criteria criteria = new Criteria();
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// 查询精度:高
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criteria.setAccuracy(Criteria.ACCURACY_FINE);
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// 是否查询海拨:否
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criteria.setAltitudeRequired(false);
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// 是否查询方位角 : 否
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criteria.setBearingRequired(false);
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// 是否允许付费:是
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criteria.setCostAllowed(true);
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// 电量要求:低
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criteria.setPowerRequirement(Criteria.POWER_LOW);
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// 返回最合适的符合条件的provider,第2个参数为true说明 , 如果只有一个provider是有效的,则返回当前provider
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return locationManager.getBestProvider(criteria, true);
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}
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private LocationListener locationListener = new LocationListener() {
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// 位置发生改变后调用
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public void onLocationChanged(Location l) {
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if(l!=null){
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location=l;
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}
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}
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// provider 被用户关闭后调用
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public void onProviderDisabled(String provider) {
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location=null;
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}
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// provider 被用户开启后调用
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public void onProviderEnabled(String provider) {
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Location l = locationManager.getLastKnownLocation(provider);
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if(l!=null){
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location=l;
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}
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}
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// provider 状态变化时调用
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public void onStatusChanged(String provider, int status, Bundle extras) {
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}
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};
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public Location getLocation(){
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return location;
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}
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public void closeLocation(){
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if(locationManager!=null){
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if(locationListener!=null){
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locationManager.removeUpdates(locationListener);
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locationListener=null;
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}
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locationManager=null;
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}
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}
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- }
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package com.ljq.activity;
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import java.util.ArrayList;
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import android.app.Service;
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import android.content.Intent;
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import android.location.Location;
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import android.os.IBinder;
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import android.util.Log;
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public class GpsService extends Service {
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ArrayList<CellInfo> cellIds = null;
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private Gps gps=null;
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private boolean threadDisable=false;
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private final static String TAG=GpsService.class.getSimpleName();
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@Override
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public void onCreate() {
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super.onCreate();
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gps=new Gps(GpsService.this);
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cellIds=UtilTool.init(GpsService.this);
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new Thread(new Runnable(){
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@Override
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public void run() {
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while (!threadDisable) {
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try {
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Thread.sleep(1000);
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} catch (InterruptedException e) {
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e.printStackTrace();
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}
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if(gps!=null){ //当结束服务时gps为空
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//获取经纬度
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Location location=gps.getLocation();
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//如果gps无法获取经纬度,改用基站定位获取
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if(location==null){
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Log.v(TAG, "gps location null");
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//2.根据基站信息获取经纬度
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try {
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location = UtilTool.callGear(GpsService.this, cellIds);
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} catch (Exception e) {
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location=null;
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e.printStackTrace();
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}
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if(location==null){
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Log.v(TAG, "cell location null");
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}
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}
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//发送广播
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Intent intent=new Intent();
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intent.putExtra("lat", location==null?"":location.getLatitude()+"");
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intent.putExtra("lon", location==null?"":location.getLongitude()+"");
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intent.setAction("com.ljq.activity.GpsService");
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sendBroadcast(intent);
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}
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}
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}
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}).start();
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}
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@Override
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public void onDestroy() {
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threadDisable=true;
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if(cellIds!=null&&cellIds.size()>0){
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cellIds=null;
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}
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if(gps!=null){
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gps.closeLocation();
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gps=null;
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}
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super.onDestroy();
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}
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@Override
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public IBinder onBind(Intent arg0) {
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return null;
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}
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- }
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package com.ljq.activity;
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import android.app.Activity;
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import android.content.BroadcastReceiver;
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import android.content.Context;
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import android.content.Intent;
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import android.content.IntentFilter;
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import android.location.Location;
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import android.location.LocationManager;
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import android.os.Bundle;
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import android.util.Log;
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import android.widget.EditText;
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import android.widget.Toast;
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public class GpsActivity extends Activity {
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private Double homeLat=26.0673834d; //宿舍纬度
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private Double homeLon=119.3119936d; //宿舍经度
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private EditText editText = null;
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private MyReceiver receiver=null;
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private final static String TAG=GpsActivity.class.getSimpleName();
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@Override
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public void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.main);
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editText=(EditText)findViewById(R.id.editText);
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//判断GPS是否可用
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Log.i(TAG, UtilTool.isGpsEnabled((LocationManager)getSystemService(Context.LOCATION_SERVICE))+"");
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if(!UtilTool.isGpsEnabled((LocationManager)getSystemService(Context.LOCATION_SERVICE))){
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Toast.makeText(this, "GSP当前已禁用,请在您的系统设置屏幕启动。", Toast.LENGTH_LONG).show();
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Intent callGPSSettingIntent = new Intent(android.provider.Settings.ACTION_LOCATION_SOURCE_SETTINGS);
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startActivity(callGPSSettingIntent);
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return;
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}
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//启动服务
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startService(new Intent(this, GpsService.class));
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//注册广播
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receiver=new MyReceiver();
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IntentFilter filter=new IntentFilter();
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filter.addAction("com.ljq.activity.GpsService");
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registerReceiver(receiver, filter);
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}
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//获取广播数据
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private class MyReceiver extends BroadcastReceiver{
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@Override
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public void onReceive(Context context, Intent intent) {
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Bundle bundle=intent.getExtras();
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String lon=bundle.getString("lon");
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String lat=bundle.getString("lat");
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if(lon!=null&&!"".equals(lon)&&lat!=null&&!"".equals(lat)){
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double distance=getDistance(Double.parseDouble(lat),
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Double.parseDouble(lon), homeLat, homeLon);
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editText.setText("目前经纬度\n经度:"+lon+"\n纬度:"+lat+"\n离宿舍距离:"+java.lang.Math.abs(distance));
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}else{
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editText.setText("目前经纬度\n经度:"+lon+"\n纬度:"+lat);
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}
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}
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}
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@Override
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protected void onDestroy() {
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//注销服务
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unregisterReceiver(receiver);
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//结束服务,如果想让服务一直运行就注销此句
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stopService(new Intent(this, GpsService.class));
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super.onDestroy();
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}
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/**
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* 把经纬度换算成距离
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*
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* @param lat1 开始纬度
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* @param lon1 开始经度
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* @param lat2 结束纬度
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* @param lon2 结束经度
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* @return
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*/
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private double getDistance(double lat1, double lon1, double lat2, double lon2) {
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float[] results = new float[1];
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Location.distanceBetween(lat1, lon1, lat2, lon2, results);
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return results[0];
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}
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package com.ljq.activity;
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import java.io.ByteArrayOutputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.OutputStream;
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import java.io.UnsupportedEncodingException;
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import java.net.HttpURLConnection;
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import java.net.MalformedURLException;
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import java.net.ProtocolException;
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import java.net.URL;
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import java.util.ArrayList;
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import java.util.Calendar;
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import java.util.List;
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import java.util.Locale;
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import org.apache.http.client.ClientProtocolException;
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import org.json.JSONException;
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import org.json.JSONObject;
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import android.content.Context;
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import android.location.Location;
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import android.location.LocationManager;
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import android.telephony.NeighboringCellInfo;
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import android.telephony.TelephonyManager;
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import android.telephony.cdma.CdmaCellLocation;
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import android.telephony.gsm.GsmCellLocation;
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import android.util.Log;
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import android.widget.Toast;
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public class UtilTool {
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public static boolean isGpsEnabled(LocationManager locationManager) {
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boolean isOpenGPS = locationManager.isProviderEnabled(android.location.LocationManager.GPS_PROVIDER);
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boolean isOpenNetwork = locationManager.isProviderEnabled(android.location.LocationManager.NETWORK_PROVIDER);
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if (isOpenGPS || isOpenNetwork) {
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return true;
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}
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return false;
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}
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/**
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* 根据基站信息获取经纬度
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*
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* 原理向http://www.google.com/loc/json发送http的post请求,根据google返回的结果获取经纬度
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*
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* @param cellIds
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* @return
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* @throws Exception
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*/
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public static Location callGear(Context ctx, ArrayList<CellInfo> cellIds) throws Exception {
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String result="";
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JSONObject data=null;
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if (cellIds == null||cellIds.size()==0) {
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UtilTool.alert(ctx, "cell request param null");
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return null;
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};
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try {
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result = UtilTool.getResponseResult(ctx, "http://www.google.com/loc/json", cellIds);
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if(result.length() <= 1)
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return null;
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data = new JSONObject(result);
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data = (JSONObject) data.get("location");
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Location loc = new Location(LocationManager.NETWORK_PROVIDER);
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loc.setLatitude((Double) data.get("latitude"));
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loc.setLongitude((Double) data.get("longitude"));
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loc.setAccuracy(Float.parseFloat(data.get("accuracy").toString()));
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loc.setTime(UtilTool.getUTCTime());
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return loc;
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} catch (JSONException e) {
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return null;
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} catch (UnsupportedEncodingException e) {
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e.printStackTrace();
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} catch (ClientProtocolException e) {
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e.printStackTrace();
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} catch (IOException e) {
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e.printStackTrace();
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}
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return null;
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}
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/**
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* 接收Google返回的数据格式
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*
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* 出参:{"location":{"latitude":26.0673834,"longitude":119.3119936,
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* "address":{"country":"ä¸å›½","country_code":"CN","region":"ç¦å»ºçœ","city":"ç¦å·žå¸‚",
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* "street":"五一ä¸è·¯","street_number":"128å·"},"accuracy":935.0},
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* "access_token":"2:xiU8YrSifFHUAvRJ:aj9k70VJMRWo_9_G"}
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* 请求路径:http://maps.google.cn/maps/geo?key=abcdefg&q=26.0673834,119.3119936
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*
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* @param cellIds
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* @return
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* @throws UnsupportedEncodingException
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* @throws MalformedURLException
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* @throws IOException
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* @throws ProtocolException
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* @throws Exception
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*/
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public static String getResponseResult(Context ctx,String path, ArrayList<CellInfo> cellInfos)
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throws UnsupportedEncodingException, MalformedURLException,
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IOException, ProtocolException, Exception {
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String result="";
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Log.i(ctx.getApplicationContext().getClass().getSimpleName(),
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"in param: "+getRequestParams(cellInfos));
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InputStream inStream=UtilTool.sendPostRequest(path,
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getRequestParams(cellInfos), "UTF-8");
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if(inStream!=null){
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byte[] datas=UtilTool.readInputStream(inStream);
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if(datas!=null&&datas.length>0){
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result=new String(datas, "UTF-8");
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//Log.i(ctx.getClass().getSimpleName(), "receive result:"+result);//服务器返回的结果信息
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Log.i(ctx.getApplicationContext().getClass().getSimpleName(),
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"google cell receive data result:"+result);
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}else{
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Log.i(ctx.getApplicationContext().getClass().getSimpleName(),
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"google cell receive data null");
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}
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}else{
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Log.i(ctx.getApplicationContext().getClass().getSimpleName(),
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"google cell receive inStream null");
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}
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return result;
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}
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/**
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* 拼装json请求参数,拼装基站信息
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*
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* 入参:{'version': '1.1.0','host': 'maps.google.com','home_mobile_country_code': 460,
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* 'home_mobile_network_code': 14136,'radio_type': 'cdma','request_address': true,
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* 'address_language': 'zh_CN','cell_towers':[{'cell_id': '12835','location_area_code': 6,
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* 'mobile_country_code': 460,'mobile_network_code': 14136,'age': 0}]}
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* @param cellInfos
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* @return
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*/
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public static String getRequestParams(List<CellInfo> cellInfos){
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StringBuffer sb=new StringBuffer("");
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sb.append("{");
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if(cellInfos!=null&&cellInfos.size()>0){
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sb.append("'version': '1.1.0',"); //google api 版本[必]
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sb.append("'host': 'maps.google.com',"); //服务器域名[必]
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sb.append("'home_mobile_country_code': "+cellInfos.get(0).getMobileCountryCode()+","); //移动用户所属国家代号[选 中国460]
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sb.append("'home_mobile_network_code': "+cellInfos.get(0).getMobileNetworkCode()+","); //移动系统号码[默认0]
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sb.append("'radio_type': '"+cellInfos.get(0).getRadioType()+"',"); //信号类型[选 gsm|cdma|wcdma]
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sb.append("'request_address': true,"); //是否返回数据[必]
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sb.append("'address_language': 'zh_CN',"); //反馈数据语言[选 中国 zh_CN]
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sb.append("'cell_towers':["); //移动基站参数对象[必]
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for(CellInfo cellInfo:cellInfos){
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sb.append("{");
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sb.append("'cell_id': '"+cellInfo.getCellId()+"',"); //基站ID[必]
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sb.append("'location_area_code': "+cellInfo.getLocationAreaCode()+","); //地区区域码[必]
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sb.append("'mobile_country_code': "+cellInfo.getMobileCountryCode()+",");
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sb.append("'mobile_network_code': "+cellInfo.getMobileNetworkCode()+",");
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sb.append("'age': 0"); //使用好久的数据库[选 默认0表示使用最新的数据库]
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sb.append("},");
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}
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sb.deleteCharAt(sb.length()-1);
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sb.append("]");
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}
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sb.append("}");
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return sb.toString();
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}
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/**
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* 获取UTC时间
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*
-
* UTC + 时区差 = 本地时间(北京为东八区)
-
*
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* @return
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*/
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public static long getUTCTime() {
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//取得本地时间
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Calendar cal = Calendar.getInstance(Locale.CHINA);
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//取得时间偏移量
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int zoneOffset = cal.get(java.util.Calendar.ZONE_OFFSET);
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//取得夏令时差
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int dstOffset = cal.get(java.util.Calendar.DST_OFFSET);
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//从本地时间里扣除这些差量,即可以取得UTC时间
-
cal.add(java.util.Calendar.MILLISECOND, -(zoneOffset + dstOffset));
-
return cal.getTimeInMillis();
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}
-
/**
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* 初始化,记得放在onCreate()方法里初始化,获取基站信息
-
*
-
* @return
-
*/
-
public static ArrayList<CellInfo> init(Context ctx) {
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ArrayList<CellInfo> cellInfos = new ArrayList<CellInfo>();
-
-
TelephonyManager tm = (TelephonyManager) ctx.getSystemService(Context.TELEPHONY_SERVICE);
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//网络制式
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int type = tm.getNetworkType();
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/**
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* 获取SIM卡的IMSI码
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* SIM卡唯一标识:IMSI 国际移动用户识别码(IMSI:International Mobile Subscriber Identification Number)是区别移动用户的标志,
-
* 储存在SIM卡中,可用于区别移动用户的有效信息。IMSI由MCC、MNC、MSIN组成,其中MCC为移动国家号码,由3位数字组成,
-
* 唯一地识别移动客户所属的国家,我国为460;MNC为网络id,由2位数字组成,
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* 用于识别移动客户所归属的移动网络,中国移动为00,中国联通为01,中国电信为03;MSIN为移动客户识别码,采用等长11位数字构成。
-
* 唯一地识别国内GSM移动通信网中移动客户。所以要区分是移动还是联通,只需取得SIM卡中的MNC字段即可
-
*/
-
String imsi = tm.getSubscriberId();
-
alert(ctx, "imsi: "+imsi);
-
//为了区分移动、联通还是电信,推荐使用imsi来判断(万不得己的情况下用getNetworkType()判断,比如imsi为空时)
-
if(imsi!=null&&!"".equals(imsi)){
-
alert(ctx, "imsi");
-
if (imsi.startsWith("46000") || imsi.startsWith("46002")) {// 因为移动网络编号46000下的IMSI已经用完,所以虚拟了一个46002编号,134/159号段使用了此编号
-
// 中国移动
-
mobile(cellInfos, tm);
-
} else if (imsi.startsWith("46001")) {
-
// 中国联通
-
union(cellInfos, tm);
-
} else if (imsi.startsWith("46003")) {
-
// 中国电信
-
cdma(cellInfos, tm);
-
}
-
}else{
-
alert(ctx, "type");
-
// 在中国,联通的3G为UMTS或HSDPA,电信的3G为EVDO
-
// 在中国,移动的2G是EGDE,联通的2G为GPRS,电信的2G为CDMA
-
// String OperatorName = tm.getNetworkOperatorName();
-
-
//中国电信
-
if (type == TelephonyManager.NETWORK_TYPE_EVDO_A
-
|| type == TelephonyManager.NETWORK_TYPE_EVDO_0
-
|| type == TelephonyManager.NETWORK_TYPE_CDMA
-
|| type ==TelephonyManager.NETWORK_TYPE_1xRTT){
-
cdma(cellInfos, tm);
-
}
-
//移动(EDGE(2.75G)是GPRS(2.5G)的升级版,速度比GPRS要快。目前移动基本在国内升级普及EDGE,联通则在大城市部署EDGE。)
-
else if(type == TelephonyManager.NETWORK_TYPE_EDGE
-
|| type == TelephonyManager.NETWORK_TYPE_GPRS ){
-
mobile(cellInfos, tm);
-
}
-
//联通(EDGE(2.75G)是GPRS(2.5G)的升级版,速度比GPRS要快。目前移动基本在国内升级普及EDGE,联通则在大城市部署EDGE。)
-
else if(type == TelephonyManager.NETWORK_TYPE_GPRS
-
||type == TelephonyManager.NETWORK_TYPE_EDGE
-
||type == TelephonyManager.NETWORK_TYPE_UMTS
-
||type == TelephonyManager.NETWORK_TYPE_HSDPA){
-
union(cellInfos, tm);
-
}
-
}
-
-
return cellInfos;
-
}
-
-
-
/**
-
* 电信
-
*
-
* @param cellInfos
-
* @param tm
-
*/
-
private static void cdma(ArrayList<CellInfo> cellInfos, TelephonyManager tm) {
-
CdmaCellLocation location = (CdmaCellLocation) tm.getCellLocation();
-
CellInfo info = new CellInfo();
-
info.setCellId(location.getBaseStationId());
-
info.setLocationAreaCode(location.getNetworkId());
-
info.setMobileNetworkCode(String.valueOf(location.getSystemId()));
-
info.setMobileCountryCode(tm.getNetworkOperator().substring(0, 3));
-
info.setRadioType("cdma");
-
cellInfos.add(info);
-
-
//前面获取到的都是单个基站的信息,接下来再获取周围邻近基站信息以辅助通过基站定位的精准性
-
// 获得邻近基站信息
-
List<NeighboringCellInfo> list = tm.getNeighboringCellInfo();
-
int size = list.size();
-
for (int i = 0; i < size; i++) {
-
CellInfo cell = new CellInfo();
-
cell.setCellId(list.get(i).getCid());
-
cell.setLocationAreaCode(location.getNetworkId());
-
cell.setMobileNetworkCode(String.valueOf(location.getSystemId()));
-
cell.setMobileCountryCode(tm.getNetworkOperator().substring(0, 3));
-
cell.setRadioType("cdma");
-
cellInfos.add(cell);
-
}
-
}
-
-
-
/**
-
* 移动
-
*
-
* @param cellInfos
-
* @param tm
-
*/
-
private static void mobile(ArrayList<CellInfo> cellInfos,
-
TelephonyManager tm) {
-
GsmCellLocation location = (GsmCellLocation)tm.getCellLocation();
-
CellInfo info = new CellInfo();
-
info.setCellId(location.getCid());
-
info.setLocationAreaCode(location.getLac());
-
info.setMobileNetworkCode(tm.getNetworkOperator().substring(3, 5));
-
info.setMobileCountryCode(tm.getNetworkOperator().substring(0, 3));
-
info.setRadioType("gsm");
-
cellInfos.add(info);
-
-
//前面获取到的都是单个基站的信息,接下来再获取周围邻近基站信息以辅助通过基站定位的精准性
-
// 获得邻近基站信息
-
List<NeighboringCellInfo> list = tm.getNeighboringCellInfo();
-
int size = list.size();
-
for (int i = 0; i < size; i++) {
-
CellInfo cell = new CellInfo();
-
cell.setCellId(list.get(i).getCid());
-
cell.setLocationAreaCode(location.getLac());
-
cell.setMobileNetworkCode(tm.getNetworkOperator().substring(3, 5));
-
cell.setMobileCountryCode(tm.getNetworkOperator().substring(0, 3));
-
cell.setRadioType("gsm");
-
cellInfos.add(cell);
-
}
-
}
-
-
-
/**
-
* 联通
-
*
-
* @param cellInfos
-
* @param tm
-
*/
-
private static void union(ArrayList<CellInfo> cellInfos, TelephonyManager tm) {
-
GsmCellLocation location = (GsmCellLocation)tm.getCellLocation();
-
CellInfo info = new CellInfo();
-
//经过测试,获取联通数据以下两行必须去掉,否则会出现错误,错误类型为JSON Parsing Error
-
//info.setMobileNetworkCode(tm.getNetworkOperator().substring(3, 5));
-
//info.setMobileCountryCode(tm.getNetworkOperator().substring(0, 3));
-
info.setCellId(location.getCid());
-
info.setLocationAreaCode(location.getLac());
-
info.setMobileNetworkCode("");
-
info.setMobileCountryCode("");
-
info.setRadioType("gsm");
-
cellInfos.add(info);
-
-
//前面获取到的都是单个基站的信息,接下来再获取周围邻近基站信息以辅助通过基站定位的精准性
-
// 获得邻近基站信息
-
List<NeighboringCellInfo> list = tm.getNeighboringCellInfo();
-
int size = list.size();
-
for (int i = 0; i < size; i++) {
-
CellInfo cell = new CellInfo();
-
cell.setCellId(list.get(i).getCid());
-
cell.setLocationAreaCode(location.getLac());
-
cell.setMobileNetworkCode("");
-
cell.setMobileCountryCode("");
-
cell.setRadioType("gsm");
-
cellInfos.add(cell);
-
}
-
}
-
/**
-
* 提示
-
*
-
* @param ctx
-
* @param msg
-
*/
-
public static void alert(Context ctx,String msg){
-
Toast.makeText(ctx, msg, Toast.LENGTH_LONG).show();
-
}
-
-
/**
-
* 发送post请求,返回输入流
-
*
-
* @param path 访问路径
-
* @param params json数据格式
-
* @param encoding 编码
-
* @return
-
* @throws UnsupportedEncodingException
-
* @throws MalformedURLException
-
* @throws IOException
-
* @throws ProtocolException
-
*/
-
public static InputStream sendPostRequest(String path, String params, String encoding)
-
throws UnsupportedEncodingException, MalformedURLException,
-
IOException, ProtocolException {
-
byte[] data = params.getBytes(encoding);
-
URL url = new URL(path);
-
HttpURLConnection conn = (HttpURLConnection)url.openConnection();
-
conn.setRequestMethod("POST");
-
conn.setDoOutput(true);
-
//application/x-javascript text/xml->xml数据 application/x-javascript->json对象 application/x-www-form-urlencoded->表单数据
-
conn.setRequestProperty("Content-Type", "application/x-javascript; charset="+ encoding);
-
conn.setRequestProperty("Content-Length", String.valueOf(data.length));
-
conn.setConnectTimeout(5 * 1000);
-
OutputStream outStream = conn.getOutputStream();
-
outStream.write(data);
-
outStream.flush();
-
outStream.close();
-
if(conn.getResponseCode()==200)
-
return conn.getInputStream();
-
return null;
-
}
-
-
/**
-
* 发送get请求
-
*
-
* @param path 请求路径
-
* @return
-
* @throws Exception
-
*/
-
public static String sendGetRequest(String path) throws Exception {
-
URL url = new URL(path);
-
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
-
conn.setConnectTimeout(5 * 1000);
-
conn.setRequestMethod("GET");
-
InputStream inStream = conn.getInputStream();
-
byte[] data = readInputStream(inStream);
-
String result = new String(data, "UTF-8");
-
return result;
-
}
-
-
/**
-
* 从输入流中读取数据
-
* @param inStream
-
* @return
-
* @throws Exception
-
*/
-
public static byte[] readInputStream(InputStream inStream) throws Exception{
-
ByteArrayOutputStream outStream = new ByteArrayOutputStream();
-
byte[] buffer = new byte[1024];
-
int len = 0;
-
while( (len = inStream.read(buffer)) !=-1 ){
-
outStream.write(buffer, 0, len);
-
}
-
byte[] data = outStream.toByteArray();//网页的二进制数据
-
outStream.close();
-
inStream.close();
-
return data;
-
}
-
-
- }
-
<?xml version="1.0" encoding="utf-8"?>
-
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-
android:orientation="vertical"
-
android:layout_width="fill_parent"
-
android:layout_height="fill_parent">
-
<EditText android:layout_width="fill_parent"
-
android:layout_height="wrap_content"
-
android:cursorVisible="false"
-
android:editable="false"
-
android:id="@+id/editText"/>
-
- </LinearLayout>
-
<?xml version="1.0" encoding="utf-8"?>
-
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-
package="com.ljq.activity" android:versionCode="1"
-
android:versionName="1.0">
-
<application android:icon="@drawable/icon"
-
android:label="@string/app_name">
-
<activity android:name=".GpsActivity"
-
android:label="@string/app_name">
-
<intent-filter>
-
<action android:name="android.intent.action.MAIN" />
-
<category
-
android:name="android.intent.category.LAUNCHER" />
-
</intent-filter>
-
</activity>
-
<service android:label="GPS服务" android:name=".GpsService" />
-
-
</application>
-
<uses-sdk android:minSdkVersion="7" />
-
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
-
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
-
<uses-permission android:name="android.permission.INTERNET" />
-
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
-
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
- </manifest>