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>