Java基础知识强化之网络编程笔记22：Android网络通信之 Android常用OAuth登录（获取个人信息）

1. 获取百度个人信息（使用Gson解析）：

2. 代码案例：

（1）工程一览图，如下：

（2）activity_main.xml：

 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:orientation="vertical"
     tools:context="com.himi.oauthdemo.MainActivity" >
     <Button
         android:id="@+id/btn_oauth"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:text="Baidu OAuth"
         android:onClick="onClickOAuth"/>

     <TextView
         android:id="@+id/tv_access_token"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:text="@string/hello_world" />

     <Button
         android:id="@+id/btn_get_user_info"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:text="Baidu Get User Info"
         android:onClick="onClickGetUserInfo"/>

     <TextView
         android:id="@+id/tv_result"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:text="@string/hello_world" />

 </LinearLayout>

布局效果，如下：

（3）MainActivity.java：

 package com.jikexueyuan.oauth;

 import java.io.IOException;

 import android.app.Activity;
 import android.os.Bundle;
 import android.text.TextUtils;
 import android.view.Menu;
 import android.view.MenuItem;
 import android.view.View;
 import android.widget.TextView;
 import android.widget.Toast;

 import com.baidu.api.AsyncBaiduRunner;
 import com.baidu.api.AsyncBaiduRunner.RequestListener;
 import com.baidu.api.Baidu;
 import com.baidu.api.BaiduDialog.BaiduDialogListener;
 import com.baidu.api.BaiduDialogError;
 import com.baidu.api.BaiduException;
 import com.google.gson.Gson;
 import com.google.gson.annotations.SerializedName;

 public class MainActivity extends Activity {

     private TextView mTvAccessToken = null;
     private TextView mTvResult = null;
     private TextView mTvResultUser = null;

     private Baidu mBaidu = null;
     private Gson mGson = null;

     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         mBaidu = new Baidu("V3VW2ulGTGbTM32pXyAs7fvY", this);
         mGson = new Gson();
         setContentView(R.layout.activity_main);
         mTvAccessToken = (TextView)findViewById(R.id.tv_access_token);
         mTvResult= (TextView)findViewById(R.id.tv_result);
         mTvResultUser= (TextView)findViewById(R.id.tv_result_user);
     }

     public void OnClickOAuth(View v) {
         mBaidu.authorize(this, true, true, new BaiduDialogListener() {

             @Override
             public void onError(BaiduDialogError arg0) {
                 refreshUI("error");
             }

             @Override
             public void onComplete(Bundle arg0) {
                 refreshUI(mBaidu.getAccessToken());
             }

             @Override
             public void onCancel() {
                 refreshUI("cancel");
             }

             @Override
             public void onBaiduException(BaiduException arg0) {
                 refreshUI("exception");
             }
         });
     }

     public void OnClickGetUserInfo(View v) {
         String token = mBaidu.getAccessToken();
         if(TextUtils.isEmpty(token)) {
             Toast.makeText(this, "Token is null", Toast.LENGTH_SHORT).show();
         } else {
             AsyncBaiduRunner runner = new AsyncBaiduRunner(mBaidu);
             String url = "https://openapi.baidu.com/rest/2.0/passport/users/getInfo";
             runner.request(url, null, "GET", new RequestListener() {

                 @Override
                 public void onIOException(IOException arg0) {
                     refreshResultUI("onIOException");
                 }

                 @Override
                 public void onComplete(String json) {
                     refreshResultUI(json);
                 }

                 @Override
                 public void onBaiduException(BaiduException arg0) {
                     refreshResultUI("onBaiduException");
                 }
             });
             /**
             new Thread(){
                  public void run() {
                      String url = "https://openapi.baidu.com/rest/2.0/passport/users/getInfo";
                         try {
                             final String jsonText = mBaidu.request(url, null, "GET");
 //                            final UserEntity user = mGson.fromJson(jsonText, UserEntity.class);
                             final UserEntity user = mGson.fromJson(jsonText, new TypeToken<UserEntity>(){}.getType());
                             runOnUiThread(new Runnable() {

                                 @Override
                                 public void run() {
                                     mTvResult.setText(jsonText);
                                     mTvResultUser.setText(mGson.toJson(user));
                                 }
                             });
                         } catch (IOException e) {
                             e.printStackTrace();
                         } catch (BaiduException e) {
                             e.printStackTrace();
                         }
                  }
             }.start();
             **/
         }
     }

     private void refreshResultUI(final String msg) {
         runOnUiThread(new Runnable() {

             @Override
             public void run() {
                 mTvResultUser.setText(msg);
             }
         });
     }
     private void refreshUI(final String msg) {
         runOnUiThread(new Runnable() {

             @Override
             public void run() {
                 mTvAccessToken.setText(msg);
             }
         });
     }

     @Override
     public boolean onCreateOptionsMenu(Menu menu) {
         // Inflate the menu; this adds items to the action bar if it is present.
         getMenuInflater().inflate(R.menu.main, menu);
         return true;
     }

     @Override
     public boolean onOptionsItemSelected(MenuItem item) {
         // Handle action bar item clicks here. The action bar will
         // automatically handle clicks on the Home/Up button, so long
         // as you specify a parent activity in AndroidManifest.xml.
         int id = item.getItemId();
         if (id == R.id.action_settings) {
             return true;
         }
         return super.onOptionsItemSelected(item);
     }

     class UserEntity {
         private String userid;
         private String blood;
         @SerializedName("username")
         private String name;
         public String getUserid() {
             return userid;
         }
         public void setUserid(String userid) {
             this.userid = userid;
         }
         public String getBlood() {
             return blood;
         }
         public void setBlood(String blood) {
             this.blood = blood;
         }
         public String getName() {
             return name;
         }
         public void setName(String username) {
             this.name = username;
         }

     }
 }

与此同时AndroidMainfest.xml，如下：

 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="com.jikexueyuan.oauth"
     android:versionCode="1"
     android:versionName="1.0" >

     <uses-sdk
         android:minSdkVersion="8"
         android:targetSdkVersion="21" />
     <uses-permission android:name="android.permission.INTERNET" />
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />

     <application
         android:allowBackup="true"
         android:icon="@drawable/ic_launcher"
         android:label="@string/app_name"
         android:theme="@style/AppTheme" >
         <activity
             android:name=".MainActivity"
             android:label="@string/app_name" >
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />

                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
     </application>

 </manifest>