一：导入依赖
compile 'com.squareup.okio:okio:1.5.0' compile 'com.squareup.okhttp3:okhttp:3.2.0' compile 'com.squareup.okhttp3:logging-interceptor:3.4.1' compile 'com.google.code.gson:gson:2.8.2' compile 'com.android.support:design:26.+' compile 'com.google.code.gson:gson:2.8.2' 二：添加网络权限<uses-permission android:name="android.permission.INTERNET" /> <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" /> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> <!-- 网络状态 --> <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /> <!-- To auto-complete the email text field in the login form with the user's emails --> <uses-permission android:name="android.permission.GET_ACCOUNTS" /> <uses-permission android:name="android.permission.READ_PROFILE" /> <uses-permission android:name="android.permission.READ_CONTACTS" />三权限导入.app依赖import android.app.Application; /** * Created by fan on 2017/12/7. */ public class MyAPP extends Application{ public static MyAPP mInstance; @Override public void onCreate() { super.onCreate(); mInstance = this; } public static MyAPP getInstance() { return mInstance; } }写入xml<?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:id="@+id/activity_main" android:layout_width="match_parent" android:layout_height="match_parent" > <EditText android:id="@+id/et_userName" android:layout_width="match_parent" android:layout_height="wrap_content" android:hint="用户名" /> <EditText android:id="@+id/et_password" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_below="@+id/et_userName" android:hint="密码" android:inputType="textPassword" /> <Button android:id="@+id/btn_login" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_below="@+id/et_password" android:text="登录" /> </RelativeLayout>
//写入导入的bean类
//然后utils包Okhttp3.0
OKhttpimport android.content.Context; import android.content.Intent; import android.net.Uri; import android.os.Environment; import android.os.Handler; import android.util.Log; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.util.Map; import java.util.concurrent.TimeUnit; import app.MyAPP; import okhttp3.Cache; import okhttp3.CacheControl; import okhttp3.Call; import okhttp3.Callback; import okhttp3.FormBody; import okhttp3.Interceptor; import okhttp3.MediaType; import okhttp3.MultipartBody; import okhttp3.OkHttpClient; import okhttp3.Request; import okhttp3.RequestBody; import okhttp3.Response; import okhttp3.logging.HttpLoggingInterceptor; /** * 1. 类的用途 封装OkHttp3的工具类 用单例设计模式 * 2. @author forever * 3. @date 2017/9/6 09:19 */ public class OkHttp3Utils { /** * 单列模式 懒汉 安全 加同步 * 私有的静态成员变量 只声明不创建 * 私有的构造方法 * 提供返回实例的静态方法 */ private static OkHttp3Utils okHttp3Utils = null; private OkHttp3Utils() { } public static OkHttp3Utils getInstance() { if (okHttp3Utils == null) { //加同步安全 synchronized (OkHttp3Utils.class) { if (okHttp3Utils == null) { okHttp3Utils = new OkHttp3Utils(); } } } return okHttp3Utils; } private static OkHttpClient okHttpClient = null; public synchronized static OkHttpClient getOkHttpClient() { if (okHttpClient == null) { //判空 为空创建实例 // okHttpClient = new OkHttpClient(); /** * 和OkHttp2.x有区别的是不能通过OkHttpClient直接设置超时时间和缓存了，而是通过OkHttpClient.Builder来设置， * 通过builder配置好OkHttpClient后用builder.build()来返回OkHttpClient， * 所以我们通常不会调用new OkHttpClient()来得到OkHttpClient，而是通过builder.build()： */ // File sdcache = getExternalCacheDir(); //缓存目录 File sdcache = new File(Environment.getExternalStorageDirectory(), "cache"); int cacheSize = 10 * 1024 * 1024; //OkHttp3拦截器 HttpLoggingInterceptor httpLoggingInterceptor = new HttpLoggingInterceptor(new HttpLoggingInterceptor.Logger() { @Override public void log(String message) { Log.i("xxx", message.toString()); } }); //Okhttp3的拦截器日志分类 4种 httpLoggingInterceptor.setLevel(HttpLoggingInterceptor.Level.BODY); okHttpClient = new OkHttpClient.Builder().connectTimeout(15, TimeUnit.SECONDS) //添加OkHttp3的拦截器 .addInterceptor(httpLoggingInterceptor) .addNetworkInterceptor(new CacheInterceptor()) .writeTimeout(20, TimeUnit.SECONDS).readTimeout(20, TimeUnit.SECONDS) .cache(new Cache(sdcache.getAbsoluteFile(), cacheSize)) .build(); } return okHttpClient; } private static Handler mHandler = null; public synchronized static Handler getHandler() { if (mHandler == null) { mHandler = new Handler(); } return mHandler; } /** * get请求 * 参数1 url * 参数2 回调Callback */ public static void doGet(String url, Callback callback) { //创建OkHttpClient请求对象 OkHttpClient okHttpClient = getOkHttpClient(); //创建Request Request request = new Request.Builder().url(url).build(); //得到Call对象 Call call = okHttpClient.newCall(request); //执行异步请求 call.enqueue(callback); } /** * post请求 * 参数1 url * 参数2 回调Callback */ public static void doPost(String url, Map<String, String> params, Callback callback) { //创建OkHttpClient请求对象 OkHttpClient okHttpClient = getOkHttpClient(); //3.x版本post请求换成FormBody 封装键值对参数 FormBody.Builder builder = new FormBody.Builder(); //遍历集合 for (String key : params.keySet()) { builder.add(key, params.get(key)); } //创建Request Request request = new Request.Builder().url(url).post(builder.build()).build(); Call call = okHttpClient.newCall(request); call.enqueue(callback); } /** * post请求上传文件 * 参数1 url * 参数2 回调Callback */ public static void uploadPic(String url, File file, String fileName) { //创建OkHttpClient请求对象 OkHttpClient okHttpClient = getOkHttpClient(); //创建RequestBody 封装file参数 RequestBody fileBody = RequestBody.create(MediaType.parse("application/octet-stream"), file); //创建RequestBody 设置类型等 RequestBody requestBody = new MultipartBody.Builder().setType(MultipartBody.FORM).addFormDataPart("file", fileName, fileBody).build(); //创建Request Request request = new Request.Builder().url(url).post(requestBody).build(); //得到Call Call call = okHttpClient.newCall(request); //执行请求 call.enqueue(new Callback() { @Override public void onFailure(Call call, IOException e) { } @Override public void onResponse(Call call, Response response) throws IOException { //上传成功回调 目前不需要处理 } }); } /** * Post请求发送JSON数据 * 参数一：请求Url * 参数二：请求的JSON * 参数三：请求回调 */ public static void doPostJson(String url, String jsonParams, Callback callback) { RequestBody requestBody = RequestBody.create(MediaType.parse("application/json; charset=utf-8"), jsonParams); Request request = new Request.Builder().url(url).post(requestBody).build(); Call call = getOkHttpClient().newCall(request); call.enqueue(callback); } /** * 下载文件 以流的形式把apk写入的指定文件 得到file后进行安装 * 参数一：请求Url * 参数二：保存文件的路径名 * 参数三：保存文件的文件名 */ public static void download(final Context context, final String url, final String saveDir) { Request request = new Request.Builder().url(url).build(); Call call = getOkHttpClient().newCall(request); call.enqueue(new Callback() { @Override public void onFailure(Call call, IOException e) { Log.i("xxx", e.toString()); } @Override public void onResponse(Call call, final Response response) throws IOException { InputStream is = null; byte[] buf = new byte[2048]; int len = 0; FileOutputStream fos = null; try { is = response.body().byteStream(); //apk保存路径 final String fileDir = isExistDir(saveDir); //文件 File file = new File(fileDir, getNameFromUrl(url)); fos = new FileOutputStream(file); while ((len = is.read(buf)) != -1) { fos.write(buf, 0, len); } fos.flush(); //apk下载完成后 调用系统的安装方法 Intent intent = new Intent(Intent.ACTION_VIEW); intent.setDataAndType(Uri.fromFile(file), "application/vnd.android.package-archive"); context.startActivity(intent); } catch (IOException e) { e.printStackTrace(); } finally { if (is != null) is.close(); if (fos != null) fos.close(); } } }); } /** * @param saveDir * @return * @throws IOException 判断下载目录是否存在 */ public static String isExistDir(String saveDir) throws IOException { // 下载位置 if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) { File downloadFile = new File(Environment.getExternalStorageDirectory(), saveDir); if (!downloadFile.mkdirs()) { downloadFile.createNewFile(); } String savePath = downloadFile.getAbsolutePath(); Log.e("savePath", savePath); return savePath; } return null; } /** * @param url * @return 从下载连接中解析出文件名 */ private static String getNameFromUrl(String url) { return url.substring(url.lastIndexOf("/") + 1); } /** * 为okhttp添加缓存，这里是考虑到服务器不支持缓存时，从而让okhttp支持缓存 */ private static class CacheInterceptor implements Interceptor { @Override public Response intercept(Chain chain) throws IOException { // 有网络时 设置缓存超时时间1个小时 int maxAge = 60 * 60; // 无网络时，设置超时为1天 int maxStale = 60 * 60 * 24; Request request = chain.request(); if (NetWorkUtils.isNetWorkAvailable(MyAPP.getInstance())) { //有网络时只从网络获取 request = request.newBuilder().cacheControl(CacheControl.FORCE_NETWORK).build(); } else { //无网络时只从缓存中读取 request = request.newBuilder().cacheControl(CacheControl.FORCE_CACHE).build(); /* Looper.prepare(); Toast.makeText(MyApp.getInstance(), "走拦截器缓存", Toast.LENGTH_SHORT).show(); Looper.loop();*/ } Response response = chain.proceed(request); if (NetWorkUtils.isNetWorkAvailable(MyAPP.getInstance())) { response = response.newBuilder() .removeHeader("Pragma") .header("Cache-Control", "public, max-age=" + maxAge) .build(); } else { response = response.newBuilder() .removeHeader("Pragma") .header("Cache-Control", "public, only-if-cached, max-stale=" + maxStale) .build(); } return response; } } }netWorkUtils判断网络连接的类import android.content.Context; import android.net.ConnectivityManager; import android.net.NetworkInfo; /** * 1. 类的用途 联网判断 * 2. @author forever * 3. @date 2017/9/8 12:30 */ public class NetWorkUtils { //判断网络是否连接 public static boolean isNetWorkAvailable(Context context) { //网络连接管理器 ConnectivityManager connectivityManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE); //网络信息 NetworkInfo info = connectivityManager.getActiveNetworkInfo(); if (info != null) { return true; } return false; } }//网络连接器的类import android.os.Build; import java.io.IOException; import okhttp3.Interceptor; import okhttp3.Request; import okhttp3.Response; /** * 网络拦截器 */ public class LoggingInterceptor implements Interceptor { private static final String UA = "User-Agent"; @Override public Response intercept(Chain chain) throws IOException { Request request = chain.request() .newBuilder() .addHeader(UA, makeUA()) .build(); return chain.proceed(request); } private String makeUA() { String s = Build.BRAND + "/" + Build.MODEL + "/" + Build.VERSION.RELEASE; return Build.BRAND + "/" + Build.MODEL + "/" + Build.VERSION.RELEASE; } }
//接下来写mvp代码
//先判断路径的tools类/** * Created by alienware on 2017/12/8. */ public class ProApi { public static final String LOGIN = "http://120.27.23.105/user/login"; }//写入固定的bean类判断
//User类public class User { private String name; private String pass; public User(String name, String pass) { this.name = name; this.pass = pass; } public String getName() { return name; } public void setName(String name) { this.name = name; } public String getPass() { return pass; } public void setPass(String pass) { this.pass = pass; } @Override public String toString() { return "User{" + "name='" + name + '\'' + ", pass='" + pass + '\'' + '}'; } }//Userbean类public class Userbean { /** * msg : 登录成功 * code : 0 * data : {"age":null,"appkey":null,"appsecret":null,"createtime":"2017-10-19T20:24:16","email":null,"gender":0,"icon":null,"mobile":"15201336898","money":0,"nickname":null,"password":"111111","token":null,"uid":961,"username":"15201336898"} */ private String msg; private String code; public void setMsg(String msg) { this.msg = msg; } public void setCode(String code) { this.code = code; } public String getMsg() { return msg; } public String getCode() { return code; } }先写View层public interface Iview { //创建登陆成功或失败的方法 void loginSuccess(); void loginFailed(); }在写M层
//定义接口Imodelpublic interface Imodel { //登陆的接口 void login(User user); }//传入接口import java.io.IOException; import java.util.HashMap; import java.util.Map; import okhttp3.Call; import utils.GsonObjectCallback; import utils.OkHttp3Utils; import wuhao.bwei.com.wuhao201712008.login.bean.User; import wuhao.bwei.com.wuhao201712008.login.bean.Userbean; import wuhao.bwei.com.wuhao201712008.tools.ProApi; /** * Created by alienware on 2017/12/8. */ public class UserModel implements Imodel { //定义接口变量 private OnFinishLisenter lisenter; public interface OnFinishLisenter{ void OnFinish(Userbean userbean); } public void setOnfinishLisenter(OnFinishLisenter lisenter){ this.lisenter = lisenter; } public String cu; @Override public void login(User user) { Map<String,String> map = new HashMap<>(); map.put("mobile",user.getName()); map.put("password",user.getPass()); //网络请求 OkHttp3Utils.doPost(ProApi.LOGIN, map, new GsonObjectCallback<Userbean>() { @Override public void onUi(Userbean userbean) { //请求成功 if(lisenter!=null){ lisenter.OnFinish(userbean); } } @Override public void onFailed(Call call, IOException e) { } }); } }//p层import android.util.Log; import wuhao.bwei.com.wuhao201712008.login.bean.User; import wuhao.bwei.com.wuhao201712008.login.bean.Userbean; import wuhao.bwei.com.wuhao201712008.login.model.UserModel; import wuhao.bwei.com.wuhao201712008.login.view.Iview; /** * Created by alienware on 2017/12/8. */ public class MyPresenter implements UserModel.OnFinishLisenter { private Iview view; private UserModel userModel; public MyPresenter(Iview view){ this.view = view; this.userModel = new UserModel(); } public void login(final User user){ userModel.login(user); userModel.setOnfinishLisenter(this); } @Override public void OnFinish(Userbean userbean) { String code = userbean.getCode(); Log.d("Main---",code); if("0".equals(code)){ //成功 view.loginSuccess(); }else{ //请求失败 view.loginFailed(); } } }//Main主函数方法import android.content.Intent; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.view.View; import android.widget.EditText; import android.widget.Toast; import wuhao.bwei.com.wuhao201712008.login.bean.User; import wuhao.bwei.com.wuhao201712008.login.presenter.MyPresenter; import wuhao.bwei.com.wuhao201712008.login.view.Iview; public class MainActivity extends AppCompatActivity implements Iview { //定义全局变量 private MyPresenter userPresenter; private EditText etUserName; private EditText etPassword; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); //获取资源id etUserName = (EditText) findViewById(R.id.et_userName); etPassword = (EditText) findViewById(R.id.et_password); userPresenter = new MyPresenter(this); findViewById(R.id.btn_login).setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { userPresenter.login(new User(etUserName.getText().toString(),etPassword.getText().toString())); } }); } @Override public void loginSuccess() { //请求成功 Intent intent = new Intent(MainActivity.this, LoginActivity.class); startActivity(intent); } @Override public void loginFailed() { Toast.makeText(MainActivity.this,"full",Toast.LENGTH_SHORT).show(); } }
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