Android微信支付、登录、支付宝支付(完整代码)

前言

近来,因开发需要,接触微信登录、支付、和支付宝支付,网上的介绍过于笼统,或者代码不完整或者大多源码又需要积分,摸索了半天,微信登录微信支付支付宝支付需要首先注册相关注册相关相应账号,然后注册开发者账号等,详情见微信开发平台,这里直接上完整的代码

微信登录

微信登录比较简单,首先在Android Studio的build.gradle中添加相关依赖,如下所示:

   implementation 'com.tencent.mm.opensdk:wechat-sdk-android-without-mta:+'
  1. 在你的包名相应目录下新建一个wxapi目录,然后创建WXEntryActivity类,让它直接继承IWXAPIEventHandler
  2. 新建工具类,记录对应的AppID和AppSecret,如下所示,同时在AndroidManifest.xml中配置相关权限:
   public static final String App_ID="XXXXXXX";
   public static final String AppSecret="XXXXXXXXX";





  1. 重写onReq和onResp方法,因为实现IWXAPIEventHandler接口,微信发送的请求将回调到onReq方法,发送到微信请求的响应结果将回调到onResp方法,所以我们在onResp中针对不同情况进行处理
  2. 吊起微信登录,获取相应的授权,从而获取微信个人信息
    完整代码如下,可直接复制:
  • WXEntryActivity类
public class WXEntryActivity extends AppCompatActivity implements IWXAPIEventHandler {
   private IWXAPI iwxapi;
   public static String CODE;
   public static boolean isOK = false;
   private String openid,access;


   @Override
   protected void onCreate(Bundle savedInstanceState) {
       super.onCreate(savedInstanceState);
       setContentView(R.layout.activity_wxentry);
       iwxapi = WXAPIFactory.createWXAPI(this, Utils.App_ID, true);
       iwxapi.handleIntent(getIntent(), this);

   }

   @Override
   protected void onNewIntent(Intent intent) {
       super.onNewIntent(intent);
       setIntent(intent);
       iwxapi.handleIntent(intent,this);
   }

   @Override
   public void onReq(BaseReq baseReq) {

   }

   @Override
   public void onResp(BaseResp baseResp) {
       switch (baseResp.errCode) {
           case BaseResp.ErrCode.ERR_OK:
               SendAuth.Resp sendResp= (SendAuth.Resp) baseResp;
                 CODE=sendResp.code;
                 getAccessToken(CODE);
                 isOK=true;
//              WXEntryActivity.this.finish();
               break;
           case BaseResp.ErrCode.ERR_AUTH_DENIED:
               Toast.makeText(WXEntryActivity.this,"用户拒绝授权",Toast.LENGTH_SHORT).show();
               isOK=false;
               WXEntryActivity.this.finish();
               break;
           case BaseResp.ErrCode.ERR_USER_CANCEL:
               Toast.makeText(this, "用户取消授权", Toast.LENGTH_SHORT).show();
               WXEntryActivity.this.finish();
               break;
           default:
               isOK=false;
               WXEntryActivity.this.finish();
               break;
       }
   }

   private void getAccessToken(String code) {
       //获取授权
   String path="https://api.weixin.qq.com/sns/oauth2/access_token?appid="+Utils.App_ID+"&secret="+Utils.AppSecret+"&code="+code+"&grant_type=authorization_code";
       OkHttpClient client=new OkHttpClient();
       final Request request=new Request.Builder()
               .url(path)
               .build();
       Call call=client.newCall(request);
       call.enqueue(new Callback() {
           @Override
           public void onFailure(Call call, IOException e) {
           }

           @Override
           public void onResponse(Call call, Response response) throws IOException {
               final String result=response.body().string();
               try {
                   JSONObject jsonObject=new JSONObject(result);
                   openid=jsonObject.getString("openid");
                   access=jsonObject.getString("access_token");
                   Log.d("-----------", openid);
               } catch (JSONException e) {
                   e.printStackTrace();
               }
               //获取个人信息
               String getUserInfo="https://api.weixin.qq.com/sns/userinfo?access_token=" + access + "&openid=" + openid;
             OkHttpClient client1=new OkHttpClient();
             final Request request1=new Request.Builder()
                     .url(getUserInfo)
                     .build();
             Call info=client1.newCall(request1);
             info.enqueue(new Callback() {
                 @Override
                 public void onFailure(Call call, IOException e) {
                   Toast.makeText(getApplicationContext(),"登陆失败",Toast.LENGTH_SHORT).show();
                   finish();
                 }

                 @Override
                 public void onResponse(Call call, Response response) throws IOException {
                      String nickName=null;
                      String sex=null;
                      String province=null;
                      String country=null;
                      String city=null;
                      String avatarUrl=null;
                     final String result=response.body().string();
                     try {
                     //解析出微信的常用信息,如性别,昵称,省市区等
                         JSONObject jsonObject=new JSONObject(result);
                         nickName=jsonObject.getString("nickname");
                         sex=jsonObject.getString("sex");
                         city=jsonObject.getString("city");
                         province=jsonObject.getString("province");
                         country=jsonObject.getString("country");
                         avatarUrl=jsonObject.getString("headimgurl");
                     } catch (Exception e) {
                         e.printStackTrace();
                     }
                 }
             });
           }
       });
   }
}

微信支付

  1. 微信支付与微信登录基本相同,这里我们创建WXPayEntryActivity类。
  2. 订单信息包含支付金额,支付时间,这些一般由服务端去实现,交付给app转发给微信服务器,对客户端来说,只需要调用支付SDK将订单信息发送给微信服务器,其具体的回调接口是该类中的onResp函数,在该函数中可判断是否支付成功。代码如下:
public class WXPayEntryActivity extends Activity implements IWXAPIEventHandler {
   private IWXAPI api;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_wxpay_entry);
        api= WXAPIFactory.createWXAPI(this, Utils.App_ID);
        api.handleIntent(getIntent(),this);

    }

    @Override
    protected void onNewIntent(Intent intent) {
        super.onNewIntent(intent);
        setIntent(intent);
        api.handleIntent(intent,this);
    }

    @Override
    public void onReq(BaseReq baseReq) {

    }

    @Override
    public void onResp(BaseResp resp) {
        if (resp.getType() == ConstantsAPI.COMMAND_PAY_BY_WX) {
            if (resp.errCode == 0) // 支付成功
            {
                Toast.makeText(this, "支付成功", Toast.LENGTH_SHORT).show();
                //后续的操作
                finish();
            } else {
                Toast.makeText(this, resp.errCode + "test", Toast.LENGTH_SHORT)
                        .show();
                finish();
            }
        }
    }
}

支付宝支付

  1. 支付宝支付相对简单,首先导入相关sdk,将sdk放入应用工程lib目录下:
    在这里插入图片描述
  2. 在主项目的 build.gradle 中,添加下面的内容,将 libs 目录作为依赖仓库:
    Android微信支付、登录、支付宝支付(完整代码)_第1张图片
  3. 在App的build.gradle添加相关依赖,如下所示:
 implementation(name: 'alipaySdk-15.6.5-20190718211148', ext: 'aar')
  1. 获取 PayTask 支付对象调用支付(支付行为需要在独立的非ui线程中执行)
                            orderInfo=response.body().getData();
                            Runnable runnable = new Runnable() {
                                @Override
                                public void run() {
                                    PayTask apipay = new PayTask(SettlementActivity.this);
                                    Map result = apipay.payV2(orderInfo, true);
                                    Message msg = new Message();
                                    msg.what = SDK_PAY_FLAG;
                                    msg.obj = result;
                                    mHandler.sendMessage(msg);
                                }
                            };
                            Thread authThread = new Thread(runnable);
                            authThread.start();
                        }
            

                @SuppressLint("HandlerLeak")
                private Handler mHandler = new Handler() {
                    @SuppressWarnings("unused")
                    public void handleMessage(Message msg) {
                        switch (msg.what) {
                            case SDK_PAY_FLAG: {
                                @SuppressWarnings("unchecked")
                                PayResult payResult = new PayResult((Map) msg.obj);
                                String resultInfo = payResult.getResult();
                                String resultStatus = payResult.getResultStatus();
                                if (TextUtils.equals(resultStatus, "9000")) {
                                    Toast.makeText(SettlementActivity.this, "支付成功", Toast.LENGTH_SHORT).show();
                                    //这里进行后续操作,比如跳转等等
                                } else {
                                    Toast.makeText(SettlementActivity.this, "支付失败", Toast.LENGTH_SHORT).show();
                                }
                                break;
                            }
                            case SDK_AUTH_FLAG:
                                @SuppressWarnings("unchecked")
                                AuthResult authResult = new AuthResult((Map) msg.obj, true);
                                String resultStatus = authResult.getResultStatus();
                                if (TextUtils.equals(resultStatus, "9000") && TextUtils.equals(authResult.getResultCode(), "200")) {
                                    Toast.makeText(SettlementActivity.this, "授权成功", Toast.LENGTH_SHORT).show();
                                } else {
                                    Toast.makeText(SettlementActivity.this, "授权失败", Toast.LENGTH_SHORT).show();
                                }
                        }
                    }
                };

                @Override
                public void onFailure(Call call, Throwable t) {

                }
            });

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