Andriod 之数据获取
服务端Model
using System; using System.Collections.Generic; using System.Linq; using System.Web; namespace AA.Web.Models { public class ResponseBase { public int Code { get; set; } public string Msg { get; set; } } } ------------------- using System; using System.Collections.Generic; using System.Linq; using System.Web; namespace AA.Web.Models { public class LoginResponse:ResponseBase { public UserInfo User { get; set; } } public class UserInfo { public string Username { get; set; } public DateTime? AddTime { get; set; } public int? Level { get; set; } public bool? IsAdmin { get; set; } public byte[] Data { get; set; } } }
客户端Model
package com.example.aa.model; public class ResponseBase { public int getCode() { return Code; } public void setCode(int code) { Code = code; } public String getMsg() { return Msg; } public void setMsg(String msg) { Msg = msg; } public int Code; public String Msg; } ------------------- package com.example.aa.model; public class LoginResponse extends ResponseBase { private UserInfo User; public UserInfo getUser() { return User; } public void setUser(UserInfo user) { User = user; } } ------------- package com.example.aa.model; import java.util.Date; import android.R.bool; public class UserInfo { private Date AddTime; private int Level; private String Username; public Boolean getIsAdmin() { return IsAdmin; } public void setIsAdmin(Boolean isAdmin) { IsAdmin = isAdmin; } public byte[] getData() { return Data; } public void setData(byte[] data) { Data = data; } private Boolean IsAdmin; private byte[] Data; public String getUsername() { return Username; } public void setUsername(String username) { Username = username; } public Date getAddTime() { return AddTime; } public void setAddTime(Date addTime) { AddTime = addTime; } public int getLevel() { return Level; } public void setLevel(int level) { Level = level; } }
说明:如果服务端字段是大写开头的，那么客户端private type Xxxx 也要大写开头
byte[]，json后变成 Data:[1,23...]，传输体积变动N备，别拿来传文件
服务端Service
using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.Mvc; using System.ComponentModel; using System.Text; using System.Collections.Specialized; using System.Collections; namespace AA.Web.Controllers { using Models; public class AccountController : Controller { // // GET: /Account/ public ActionResult Index() { return View(); } public ActionResult AddUser(string username, int level) { StringBuilder heads = new StringBuilder(); foreach (string key in HttpContext.Request.Headers.Keys) { heads.Append(key + ":" + HttpContext.Request.Headers[key] +"$"); } var user = Session["UserInfo"] as UserInfo; var msg = user == null ? "未登陆" : user.Username; return Content("Msg:" + msg + ",DT:" + DateTime.Now + ",level:" + level + "," + heads.ToString()); } public ActionResult Login(string username, string password) { LoginResponse response = new LoginResponse(); List<LoginResponse> list = new List<LoginResponse>(); try { response.Code = 18; response.Msg = "登录成功"; response.User = new UserInfo() { Username = username, Level = 3, AddTime = DateTime.Now,IsAdmin=true,Data=new byte[]{1,22,33} }; list.Add(response); list.Add(response); list.Add(response); Session.Add("UserInfo", response.User); } catch (Exception ex) { response.Msg = ex.Message; response.Code = -1; } return Json(list,"text/json",Encoding.UTF8,JsonRequestBehavior.AllowGet); } public ActionResult GetUsers() { List<UserInfo> users = new List<UserInfo>(); users.Add(new UserInfo() { Username = "张1", Level = 8, AddTime = DateTime.Now,IsAdmin=true,Data=new byte[]{1,22,33} }); users.Add(new UserInfo() { Username = "张2", Level = 8, AddTime = null, IsAdmin = null, Data = null }); users.Add(new UserInfo() { Username = "张3", Level = 8, AddTime = DateTime.Now, IsAdmin = true, Data = new byte[] { 1, 22, 33 } }); users.Add(new UserInfo() { Username = "张4", Level = 8, AddTime = DateTime.Now, IsAdmin = true, Data = new byte[] { 1, 22, 33 } }); return Json(users, "text/json", Encoding.UTF8, JsonRequestBehavior.AllowGet); } } }
客户端调用
package com.example.aa; import java.util.ArrayList; 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.HttpGet; import org.apache.http.client.methods.HttpPost; import org.apache.http.impl.client.DefaultHttpClient; import org.apache.http.message.BasicNameValuePair; import org.apache.http.util.EntityUtils; import android.R.string; import android.preference.PreferenceActivity.Header; public class AccountService { //private final static HttpClient httpClient=new DefaultHttpClient(); public static String login(String username, String password) { try { //"http://192.168.1.7:7086/account/getUsers";// String httpUrl = "http://192.168.1.7:7086/Account/login?username=xxx2&password=bbb"; // HttpGet连接对象 HttpGet httpRequest = new HttpGet(httpUrl); // 取得HttpClient对象 HttpClient httpClient = new DefaultHttpClient(); // 请求HttpClient，取得HttpResponse HttpResponse httpResponse = httpClient.execute(httpRequest); for(org.apache.http.Header h:httpResponse.getAllHeaders()){ System.out.println(h.getName()); } // 请求成功 if (httpResponse.getStatusLine().getStatusCode() == HttpStatus.SC_OK) { // 取得返回的字符串 String strResult = EntityUtils.toString(httpResponse .getEntity()); return strResult; } else { return ""; } } catch (Exception e) { throw new RuntimeException(e); } } public static String addUser(String username, int level) { try { String httpUrl ="http://192.168.1.7:7086/account/adduser"; List<NameValuePair> paramsList=new ArrayList<NameValuePair>(); paramsList.add(new BasicNameValuePair("username", username)); paramsList.add(new BasicNameValuePair("level",Integer.toString(level))); // HttpGet连接对象 HttpPost httpRequest = new HttpPost(httpUrl); httpRequest.setEntity( new UrlEncodedFormEntity(paramsList, "utf-8") ); // 取得HttpClient对象 HttpClient httpClient = new DefaultHttpClient(); // 请求HttpClient，取得HttpResponse HttpResponse httpResponse = httpClient.execute(httpRequest); for(org.apache.http.Header h:httpResponse.getAllHeaders()){ System.out.println(h.getName()); } // 请求成功 if (httpResponse.getStatusLine().getStatusCode() == HttpStatus.SC_OK) { // 取得返回的字符串 String strResult = EntityUtils.toString(httpResponse .getEntity()); return strResult; } else { return ""; } } catch (Exception e) { throw new RuntimeException(e); } } }
package com.example.aa; import java.lang.reflect.Type; import java.util.ArrayList; import java.util.LinkedList; import org.apache.http.HttpRequest; import org.json.JSONArray; import com.example.aa.model.LoginResponse; import com.example.aa.model.UserInfo; import com.example.aa.util.GsonUtil; import com.example.aa.util.SystemUiHider; import com.google.gson.Gson; import com.google.gson.reflect.TypeToken; import android.R.bool; import android.R.integer; import android.R.string; import android.annotation.TargetApi; import android.app.Activity; import android.app.AlertDialog; import android.app.Dialog; import android.os.Build; import android.os.Bundle; import android.os.Handler; import android.os.StrictMode; import android.view.MotionEvent; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.EditText; /** * An example full-screen activity that shows and hides the system UI (i.e. * status bar and navigation/system bar) with user interaction. * * @see SystemUiHider */ public class FullscreenActivity extends Activity { /** * Whether or not the system UI should be auto-hidden after * {@link #AUTO_HIDE_DELAY_MILLIS} milliseconds. */ private static final boolean AUTO_HIDE = true; /** * If {@link #AUTO_HIDE} is set, the number of milliseconds to wait after * user interaction before hiding the system UI. */ private static final int AUTO_HIDE_DELAY_MILLIS = 3000; /** * If set, will toggle the system UI visibility upon interaction. Otherwise, * will show the system UI visibility upon interaction. */ private static final boolean TOGGLE_ON_CLICK = true; /** * The flags to pass to {@link SystemUiHider#getInstance}. */ private static final int HIDER_FLAGS = SystemUiHider.FLAG_HIDE_NAVIGATION; /** * The instance of the {@link SystemUiHider} for this activity. */ private SystemUiHider mSystemUiHider; private boolean isFirest=true; private void showDialog(String msg){ Dialog alertDialog = new AlertDialog.Builder(FullscreenActivity.this). setTitle("信息"). setIcon(R.drawable.ic_launcher). setMessage(msg). create(); alertDialog.show(); } @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_fullscreen); final View controlsView = findViewById(R.id.fullscreen_content_controls); final View contentView = findViewById(R.id.fullscreen_content); //============Start My============ if (android.os.Build.VERSION.SDK_INT > 9) { StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build(); StrictMode.setThreadPolicy(policy); } final Button btn1=(Button) findViewById(R.id.button1); final Button btnPost=(Button)findViewById(R.id.button2); final EditText txtTips=(EditText)findViewById(R.id.editText1); btn1.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { //et1.setText("NND你点了"); try { String json=AccountService.login("xxx", "123"); JSONArray jsonArray=new JSONArray(json); Gson gson=GsonUtil.getGson(); Type listType = new TypeToken<ArrayList<LoginResponse>>(){}.getType(); ArrayList<LoginResponse> users=gson.fromJson(json, listType); showDialog(users.get(0).getUser().getUsername()); } catch (Exception e) { showDialog(e.getMessage()); } } }); btnPost.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { try{ if(isFirest) { AccountService.login("Admin", "xxx"); isFirest=false; } String retString=AccountService.addUser("张老三他外甥的的小固执", 8); txtTips.setText(retString); }catch (Exception e) { showDialog(e.getMessage()); } } }); //==============End My================== // Set up an instance of SystemUiHider to control the system UI for // this activity. mSystemUiHider = SystemUiHider.getInstance(this, contentView, HIDER_FLAGS); mSystemUiHider.setup(); mSystemUiHider .setOnVisibilityChangeListener(new SystemUiHider.OnVisibilityChangeListener() { // Cached values. int mControlsHeight; int mShortAnimTime; @Override @TargetApi(Build.VERSION_CODES.HONEYCOMB_MR2) public void onVisibilityChange(boolean visible) { if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB_MR2) { // If the ViewPropertyAnimator API is available // (Honeycomb MR2 and later), use it to animate the // in-layout UI controls at the bottom of the // screen. if (mControlsHeight == 0) { mControlsHeight = controlsView.getHeight(); } if (mShortAnimTime == 0) { mShortAnimTime = getResources().getInteger( android.R.integer.config_shortAnimTime); } controlsView .animate() .translationY(visible ? 0 : mControlsHeight) .setDuration(mShortAnimTime); } else { // If the ViewPropertyAnimator APIs aren't // available, simply show or hide the in-layout UI // controls. controlsView.setVisibility(visible ? View.VISIBLE : View.GONE); } if (visible && AUTO_HIDE) { // Schedule a hide(). delayedHide(AUTO_HIDE_DELAY_MILLIS); } } }); // Set up the user interaction to manually show or hide the system UI. contentView.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { if (TOGGLE_ON_CLICK) { mSystemUiHider.toggle(); } else { mSystemUiHider.show(); } } }); // Upon interacting with UI controls, delay any scheduled hide() // operations to prevent the jarring behavior of controls going away // while interacting with the UI. // findViewById(R.id.dummy_button).setOnTouchListener( // mDelayHideTouchListener); } @Override protected void onPostCreate(Bundle savedInstanceState) { super.onPostCreate(savedInstanceState); // Trigger the initial hide() shortly after the activity has been // created, to briefly hint to the user that UI controls // are available. delayedHide(100); } /** * Touch listener to use for in-layout UI controls to delay hiding the * system UI. This is to prevent the jarring behavior of controls going away * while interacting with activity UI. */ View.OnTouchListener mDelayHideTouchListener = new View.OnTouchListener() { @Override public boolean onTouch(View view, MotionEvent motionEvent) { if (AUTO_HIDE) { delayedHide(AUTO_HIDE_DELAY_MILLIS); } return false; } }; Handler mHideHandler = new Handler(); Runnable mHideRunnable = new Runnable() { @Override public void run() { mSystemUiHider.hide(); } }; /** * Schedules a call to hide() in [delay] milliseconds, canceling any * previously scheduled calls. */ private void delayedHide(int delayMillis) { mHideHandler.removeCallbacks(mHideRunnable); mHideHandler.postDelayed(mHideRunnable, delayMillis); } }
package com.example.aa.util; import java.lang.reflect.Type; import java.util.Date; import java.util.regex.Matcher; import java.util.regex.Pattern; import android.R.string; import com.google.gson.JsonDeserializationContext; import com.google.gson.JsonDeserializer; import com.google.gson.JsonElement; import com.google.gson.JsonParseException; public class DateDeserializer implements JsonDeserializer<Date> { @Override public Date deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context) throws JsonParseException { String JSONDateToMilliseconds = "/Date\\((.*?)\\)/"; Pattern pattern = Pattern.compile(JSONDateToMilliseconds); String value=json.getAsJsonPrimitive().getAsString(); Matcher matcher = pattern.matcher(value); String result = matcher.replaceAll("$1"); return new Date(new Long(result)); } }
package com.example.aa.util; import java.util.Date; import com.google.gson.Gson; import com.google.gson.GsonBuilder; public class GsonUtil { public static Gson getGson(){ GsonBuilder gsonb = new GsonBuilder(); DateDeserializer ds = new DateDeserializer(); gsonb.registerTypeAdapter(Date.class, ds); Gson gson = gsonb.create(); return gson; } }
说明:asp.net mvc的Data json需要特别处理下
服务端反Json序列化
JavaScriptSerializer jss = new JavaScriptSerializer();
var list= jss.Deserialize<List<LoginResponse>>(jsonData);
list.ForEach(ent => ent.Msg = "卡看看");
return Json(list, "text/json", Encoding.UTF8);
