微信支付客户端实现流程

来源：互联网发布：淘宝3c证书编辑：程序博客网时间：2024/05/22 08:15

前期准备：

1）注册微信开放平台账号

2）认证开发者资质

3）创建APP并提交审核

1）2）3）三个流程约7个工作日；

4）提交资料申请微信支付

5）启动设计和开发

4）5）约3~7个工作日；

6）开户成功，登录商户平台进行验证

7）在线签署协议

8）成功接入微信支付

客户端实现：

准备：

1）微信支付的APPID
2）添加微信支付的jar包或依赖
3）一个Activity类 >>> WXPayEntryActivity.java

第1步：

导入微信支付SDK：

    compile 'com.tencent.mm.opensdk:wechat-sdk-android-with-mta:+'

第2步：

在对应的目录下创建一个“wxapi目录”，在wxapi目录下创建一个WXPayEntryActivity类继承Activity并实现IWXAPIEventHandler ；

具体代码如下，仅供参考：

public class WXPayEntryActivity extends Activity implements IWXAPIEventHandler {
private static final String TAG = "WXPayEntryActivity";
private IWXAPI mWXApi;
private static PayReq req = new PayReq();

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//订单参数数据
String goodsOrder = null;
//商品类型
String buyType = null;

//接收数据
Bundle bundle = this.getIntent().getExtras();
//接收phoneNumber值
String buyType1 = bundle.getString("goods", "");
String buyType2 = bundle.getString("magazine", "");
if (!"".equals(buyType1)) {
buyType = buyType1;
} else if (!"".equals(buyType2)) {
buyType = buyType2;
}

Gson gson = new Gson();

if (GoodSType.GOOD_TYPE1.equals(buyType)) {//购买1
goodsOrder = AccessSPFile.getGoodsOrderSP(this);
//订单信息
Log.d("BOM-眼镜", goodsOrder.toString());
GoodsOrderBean goodsOrderBean = gson.fromJson(goodsOrder, GoodsOrderBean.class);

//判断是否安装微信
if (goodsOrderBean.getResult() != null) {
boolean wxAppInstalledAndSupported = isWXAppInstalledAndSupported(goodsOrderBean.getResult().getAppid());
if (wxAppInstalledAndSupported) {
req = buyGlass(goodsOrderBean);
} else {
Toast.makeText(this, "请安装微信", Toast.LENGTH_SHORT).show();
finish();
}
}

} else if (GoodSType.GOOD_TYPE2.equals(buyType)) {//购买2
goodsOrder = AccessSPFile.getMagazineOrderSP(this);
//订单信息
Log.d("BOM-炸弹", goodsOrder.toString());
MagazineBuyBean goodsOrderBean = gson.fromJson(goodsOrder, MagazineBuyBean.class);

//判断是否安装微信
if (goodsOrderBean.getResult() != null) {
boolean wxAppInstalledAndSupported = isWXAppInstalledAndSupported(goodsOrderBean.getResult().getAppid());
if (wxAppInstalledAndSupported) {
req = buyMagazine(goodsOrderBean);
} else {
Toast.makeText(this, "请安装微信", Toast.LENGTH_SHORT).show();
finish();
}
}

}

if (req != null) {
if (mWXApi != null) {
mWXApi.sendReq(req);
}
}

if (mWXApi != null) {
mWXApi.handleIntent(getIntent(), this);
}
}

private PayReq buyMagazine(MagazineBuyBean goodsOrderBean) {
PayReq req = new PayReq();

String packageX = goodsOrderBean.getResult().getPackageX();
String appid1 = goodsOrderBean.getResult().getAppid();
String noncestr = goodsOrderBean.getResult().getNoncestr();
String partnerid = goodsOrderBean.getResult().getPartnerid();
String prepayid = goodsOrderBean.getResult().getPrepayid();
String sign = goodsOrderBean.getResult().getSign();
String timestamp = goodsOrderBean.getResult().getTimestamp();

//向微信终端注册应用的APPID
String appid = goodsOrderBean.getResult().getAppid();
mWXApi = WXAPIFactory.createWXAPI(this, appid);
mWXApi.registerApp(appid);

//生成支付参数
req.appId = goodsOrderBean.getResult().getAppid();
req.partnerId = goodsOrderBean.getResult().getPartnerid();
req.prepayId = goodsOrderBean.getResult().getPrepayid();
req.packageValue = goodsOrderBean.getResult().getPackageX();
req.nonceStr = goodsOrderBean.getResult().getNoncestr();
req.timeStamp = goodsOrderBean.getResult().getTimestamp();
req.sign = goodsOrderBean.getResult().getSign();

return req;
}

private PayReq buyGlass(GoodsOrderBean goodsOrderBean) {
PayReq req = new PayReq();

String packageX = goodsOrderBean.getResult().getPackageX();
String appid1 = goodsOrderBean.getResult().getAppid();
String noncestr = goodsOrderBean.getResult().getNoncestr();
String partnerid = goodsOrderBean.getResult().getPartnerid();
String prepayid = goodsOrderBean.getResult().getPrepayid();
String sign = goodsOrderBean.getResult().getSign();
String timestamp = goodsOrderBean.getResult().getTimestamp();

//向微信终端注册应用的APPID
String appid = goodsOrderBean.getResult().getAppid();
mWXApi = WXAPIFactory.createWXAPI(this, appid);
mWXApi.registerApp(appid);

//生成支付参数
req.appId = goodsOrderBean.getResult().getAppid();
req.partnerId = goodsOrderBean.getResult().getPartnerid();
req.prepayId = goodsOrderBean.getResult().getPrepayid();
req.packageValue = goodsOrderBean.getResult().getPackageX();
req.nonceStr = goodsOrderBean.getResult().getNoncestr();
req.timeStamp = goodsOrderBean.getResult().getTimestamp();
req.sign = goodsOrderBean.getResult().getSign();

return req;
}

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

@Override
public void onReq(BaseReq baseReq) {
}

/*
第三方应用发送到微信的请求
处理后的响应结果
会回调该方法
@param 0:成功
@param -1:支付失败
@param -2:取消
*/
@Override
public void onResp(BaseResp baseResp) {
if (baseResp.getType() == ConstantsAPI.COMMAND_PAY_BY_WX) {

if (baseResp.errCode == 0) {
//支付成功
Toast.makeText(this, "支付成功", Toast.LENGTH_SHORT).show();
finsh();
} else if (baseResp.errCode == -2) {
Toast.makeText(this, "支付取消", Toast.LENGTH_SHORT).show();
finish();
} else {
Toast.makeText(this, "支付失败", Toast.LENGTH_SHORT).show();
finish();
}
} else {
finish();
}
}

//判断是否安装微信
private boolean isWXAppInstalledAndSupported(String appid) {
IWXAPI msgApi = WXAPIFactory.createWXAPI(WXPayEntryActivity.this, null);
if (appid != null) {
msgApi.registerApp(appid);
}

boolean sIsWXAppInstalledAndSupported = msgApi.isWXAppInstalled()
&& msgApi.isWXAppSupportAPI();

return sIsWXAppInstalledAndSupported;
}
}

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