Android客户端通过HTTP连接服务器，完成注册并传送坐标信息
jopen
11年前
一、Main.xml
主要是2个Button和一个TextView。“设备注册”点击后即向服务器发送设备的MAC、HolderName等信息；“坐标传送”则输送设备从iBeacon获取的坐标信息到服务器，经过定位算法处理后再从服务器传回修正坐标信息（因篇幅有限，本节暂不提坐标信息是如何获取的）。下面的TextView用于实时显示状态信息。其他的View主要用于实际调试。
<?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"> <LinearLayout android:orientation="horizontal" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_marginTop="10dp"> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="信息交互窗口" android:textSize="16dp" android:layout_marginRight="10dp" /> <EditText android:id="@+id/tvEdit" android:layout_width="fill_parent" android:text="" android:layout_height="wrap_content" /> </LinearLayout> <Button android:id="@+id/btnGetQuery" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="设备注册" /> <Button android:id="@+id/btnPostQuery" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="坐标传送" /> <TextView android:id="@+id/tvQueryResult" android:layout_width="fill_parent" android:layout_height="wrap_content" /> </LinearLayout>
二、建立HTTP连接
1、NetworkService类用于建立HTTP连接。
2、url_ip为服务器IP地址，
getPostResult()方法传入的url为服务器定义的action，本文为"equipment_Register_VIPRegister_n.action"
package net.blogjava.mobile; import java.io.UnsupportedEncodingException; import java.util.List; import org.apache.http.HttpResponse; import org.apache.http.HttpStatus; import org.apache.http.NameValuePair; import org.apache.http.client.HttpClient; import org.apache.http.client.entity.UrlEncodedFormEntity; import org.apache.http.client.methods.HttpPost; import org.apache.http.impl.client.DefaultHttpClient; import org.apache.http.params.BasicHttpParams; import org.apache.http.params.HttpConnectionParams; import org.apache.http.util.EntityUtils; import android.util.Log; public class NetworkService { private static String TAG = "NetworkService"; //private static String url_ip = ServerUrl.SERVER_ADRESS+"UserInfoServlet?"; private static String url_ip = "http://192.168.1.231:8080/indoor/"; /** * 释放资源 */ public static void cancel() { Log.i(TAG, "cancel!"); // if(conn != null) { // conn.cancel(); // } } //无参数传递的 public static String getPostResult(String url){ url = url_ip + url; //创建http请求对象 HttpPost post = new HttpPost(url); //创建HttpParams以用来设置HTTP参数 BasicHttpParams httpParams = new BasicHttpParams(); HttpConnectionParams.setConnectionTimeout(httpParams,10 * 1000); HttpConnectionParams.setSoTimeout(httpParams, 10 * 1000); //创建网络访问处理对象 HttpClient httpClient = new DefaultHttpClient(httpParams); try{ //执行请求参数�? HttpResponse response = httpClient.execute(post); //判断是否请求成功 if(response.getStatusLine().getStatusCode() == HttpStatus.SC_OK) { //获得响应信息 String content = EntityUtils.toString(response.getEntity()); return content; } else { //网连接失败，使用Toast显示提示信息 } }catch(Exception e) { e.printStackTrace(); return "{\"status\":405,\"resultMsg\":\"网络超时！\"}"; } finally { //释放网络连接资源 httpClient.getConnectionManager().shutdown(); } return "{\"status\":405,\"resultMsg\":\"网络超时！\"}"; } //有参数传递的 public static String getPostResult(String url, List<NameValuePair> paramList){ UrlEncodedFormEntity entity = null; try { entity = new UrlEncodedFormEntity(paramList,"utf-8"); } catch (UnsupportedEncodingException e1) { // TODO Auto-generated catch block e1.printStackTrace(); } //创建http请求对象 HttpPost post = new HttpPost(url); BasicHttpParams httpParams = new BasicHttpParams(); HttpConnectionParams.setConnectionTimeout(httpParams, 10 * 1000); HttpConnectionParams.setSoTimeout(httpParams, 10 * 1000); post.setEntity(entity); //创建网络访问处理对象 HttpClient httpClient = new DefaultHttpClient(httpParams); try{ //执行请求参数�? HttpResponse response = httpClient.execute(post); //判断是否请求成功 if(response.getStatusLine().getStatusCode() == HttpStatus.SC_OK) { //获得响应信息 String content = EntityUtils.toString(response.getEntity(),"UTF-8"); return content; } else { //网连接失败，使用Toast显示提示信息 } }catch(Exception e) { e.printStackTrace(); return "{\"status\":405,\"resultMsg\":\"网络超时！\"}"; } finally { //释放网络连接资源 httpClient.getConnectionManager().shutdown(); } return "{\"status\":405,\"resultMsg\":\"网络超时！\"}"; } }三、注册信息的传送
1、定义List<NameValuePair>：
List<NameValuePair> paramList = new ArrayList<NameValuePair>(); paramList.add(new BasicNameValuePair("headTage","device")); paramList.add(new BasicNameValuePair("idmac",IDMAC)); paramList.add(new BasicNameValuePair("model",MODEL)); paramList.add(new BasicNameValuePair("holdername",HOLDERNAME));2、调用NetworkService类里面的getPostResult()方法：
String str =""; str = NetworkService.getPostResult(url, paramList);
3、Json解析服务器回馈的信息
（需自行下载并添加json的包）
import org.json.JSONArray; import org.json.JSONException; import org.json.JSONObject; import org.json.JSONTokener;
try { JSONTokener jsonParser = new JSONTokener(result); JSONObject responseobj = (JSONObject) jsonParser.nextValue(); if("failed".equals(responseobj.getString("errorMsg"))) { tvQueryResult.setText(responseobj.getString("resul")); //closeHeaderOrFooter(true); } else { <pre name="code" class="java"> tvQueryResult.setText("没有数据"); } else { <pre name="code" class="java"><pre name="code" class="java"> tvQueryResult.setText("数据获取失败"); } } catch (Exception e) { <pre name="code" class="java"><pre name="code" class="java"><pre name="code" class="java"><pre name="code" class="java"> tvQueryResult.setText("数据获取失败"); } 3、因http耗时需将设备注册与左边信息传送放在异步线程里来执行，否则会报异常
//注册 class RegisterAsyncTask extends AsyncTask<String, Integer, String> { Context myContext; TextView tvQueryResult = (TextView) findViewById(R.id.tvQueryResult); public RegisterAsyncTask(Context context) { myContext = context; } @Override protected String doInBackground(String... params) { // TODO Auto-generated method stub try { resultData = InitData(); Thread.sleep(1000); } catch (Exception e) { } return resultData; } @Override protected void onPreExecute() { } protected String InitData() { String IDMAC=getLocalMacAddress(); String MODEL = android.os.Build.MODEL==null ?"未知":android.os.Build.MODEL; String HOLDERNAME = android.os.Build.USER==null ?"未知":android.os.Build.USER; String str =""; String url = "http://192.168.1.226:8080/indoor/equipment_Register_VIPRegister_n.action"; List<NameValuePair> paramList = new ArrayList<NameValuePair>(); paramList.add(new BasicNameValuePair("headTage","device")); paramList.add(new BasicNameValuePair("idmac",IDMAC)); paramList.add(new BasicNameValuePair("model",MODEL)); paramList.add(new BasicNameValuePair("holdername",HOLDERNAME)); str = NetworkService.getPostResult(url, paramList); Log.i("msg", str); return str; } protected void onPostExecute(String result) { try { JSONTokener jsonParser = new JSONTokener(result); JSONObject responseobj = (JSONObject) jsonParser.nextValue(); if("failed".equals(responseobj.getString("errorMsg"))) { tvQueryResult.setText(responseobj.getString("resul")); } else { tvQueryResult.setText("数据获取失败"); } } catch (Exception e) { tvQueryResult.setText("数据获取失败"); } } }四、主程序
package net.blogjava.mobile; import java.util.ArrayList; import java.util.List; import org.json.JSONArray; import org.json.JSONObject; import org.json.JSONTokener; import org.apache.http.NameValuePair; import org.apache.http.message.BasicNameValuePair; import net.blogjava.mobile.NetworkService; import com.pojo.DeviceInfo; import com.pojo.PositionInput; import android.app.Activity; import android.os.AsyncTask; import android.os.Bundle; import android.util.Log; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.TextView; import android.net.wifi.WifiInfo; import android.net.wifi.WifiManager; import android.content.Context; public class Main extends Activity implements OnClickListener { private String resultData; DeviceInfo device =new DeviceInfo(); @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); Button btnGetQuery = (Button) findViewById(R.id.btnGetQuery); Button btnPostQuery = (Button) findViewById(R.id.btnPostQuery); btnGetQuery.setOnClickListener(this); btnPostQuery.setOnClickListener(this); RegisterDevice(); } @Override public void onClick(View view) { //String url = ""; TextView tvQueryResult = (TextView) findViewById(R.id.tvQueryResult); /* HttpResponse httpResponse = null; */ try { switch (view.getId()) { case R.id.btnGetQuery: tvQueryResult.setText("正在注册..."); RegisterDevice(); break; case R.id.btnPostQuery: tvQueryResult.setText("传送坐标信息..."); PositionPost(); break; } } catch (Exception e) { tvQueryResult.setText(e.getMessage()); } } //注册按钮执行事件 protected void RegisterDevice(){ //Toast.makeText(Main.this,"注册中...", 1000).show(); //new AlertDialog.Builder(Main.this).setMessage("正在注册...").create().show(); RegisterAsyncTask Register = new RegisterAsyncTask(this); Register.execute(""); //new AlertDialog.Builder(Main.this).setMessage("注册成功").create().show(); } //坐标传送按钮执行事件 protected void PositionPost(){ PositionPostAsyncTask PositionPost = new PositionPostAsyncTask(this); PositionPost.execute(""); }; //注册 class RegisterAsyncTask extends AsyncTask<String, Integer, String> { Context myContext; TextView tvQueryResult = (TextView) findViewById(R.id.tvQueryResult); public RegisterAsyncTask(Context context) { myContext = context; } @Override protected String doInBackground(String... params) { // TODO Auto-generated method stub try { resultData = InitData(); Thread.sleep(1000); } catch (Exception e) { } return resultData; } @Override protected void onPreExecute() { } protected String InitData() { String IDMAC=getLocalMacAddress(); String MODEL = android.os.Build.MODEL==null ?"未知":android.os.Build.MODEL; String HOLDERNAME = android.os.Build.USER==null ?"未知":android.os.Build.USER; String str =""; String url = "http://192.168.1.226:8080/indoor/equipment_Register_VIPRegister_n.action"; List<NameValuePair> paramList = new ArrayList<NameValuePair>(); paramList.add(new BasicNameValuePair("headTage","device")); paramList.add(new BasicNameValuePair("idmac",IDMAC)); paramList.add(new BasicNameValuePair("model",MODEL)); paramList.add(new BasicNameValuePair("holdername",HOLDERNAME)); str = NetworkService.getPostResult(url, paramList); Log.i("msg", str); return str; } protected void onPostExecute(String result) { try { JSONTokener jsonParser = new JSONTokener(result); JSONObject responseobj = (JSONObject) jsonParser.nextValue(); if("failed".equals(responseobj.getString("errorMsg"))) { tvQueryResult.setText(responseobj.getString("resul")); } else { tvQueryResult.setText("数据获取失败"); } } catch (Exception e) { tvQueryResult.setText("数据获取失败"); } } } //位置坐标传送 class PositionPostAsyncTask extends AsyncTask<String, Integer, String> { Context myContext; public PositionPostAsyncTask(Context context) { myContext = context; } @Override protected String doInBackground(String... params) { // TODO Auto-generated method stub try { resultData = InitData(); Thread.sleep(1000); } catch (Exception e) { } return resultData; } @Override protected void onPreExecute() { } protected String InitData() { PositionInput position=new PositionInput(); String str =""; String url = "equipment_Register_VIPRegister_n.action"; List<NameValuePair> paramList = new ArrayList<NameValuePair>(); paramList.add(new BasicNameValuePair("headTage","position")); paramList.add(new BasicNameValuePair("x",String.valueOf(position.getX()))); paramList.add(new BasicNameValuePair("y",String.valueOf(position.getY()))); paramList.add(new BasicNameValuePair("z",String.valueOf(position.getZ()))); str = NetworkService.getPostResult(url, paramList); Log.i("msg", str); return str; } protected void onPostExecute(String result) { try { JSONTokener jsonParser = new JSONTokener(result); JSONObject responseobj = (JSONObject) jsonParser.nextValue(); if("position".equals(responseobj.getString("headTage"))) { JSONArray neworderlist = responseobj.getJSONArray("response"); int length = neworderlist.length(); if (length > 0) { for(int i = 0; i < length; i++){//遍历JSONArray JSONObject jo = neworderlist.getJSONObject(i); //解析为坐标信息 float x = Float.parseFloat(jo.getString("x")); float y = Float.parseFloat(jo.getString("y")); float z = Float.parseFloat(jo.getString("z")); } } else { } } else { } } catch (Exception e) { } } } public String getLocalMacAddress() { WifiManager wifi = (WifiManager) getSystemService(Context.WIFI_SERVICE); WifiInfo info = wifi.getConnectionInfo(); return info.getMacAddress(); } }来自：http://blog.csdn.net/cooelf/article/details/37809845