微信支付开发完整流程与-1”闪屏”解决
文档说明
现在的APP里面只要有支付的应该都会用到微信支付,但是在开发的过程中会遇到各种问题,很多人都会说官方文档写的稍微有那么一点看不懂,同感!不想怀疑人生的,就看小白的文档就行,保证让你舒服顺利的,,,,不遇到各种头疼问题。
嘿嘿嘿,,低调低调,正文走起
开发流程
这里我们分五个步骤:
1 :去找你们产品要微信开放平台的账号密码。
签名生成工具
2 :去微信官方文档下载一个 **签名生成工具 **: 签名生成工具下载地址
打包签名注意事项
3 : 签名工具安装到手机上之后,把你们的 项目打包 打一个 release 包安装到手机上,( 切记 :“打包要打个release包不要打debug包,也不是让你run运行到手机上面,因为你上线的时候用的是正式包(release包)上线的”),安装到手机上之后,打开你上一步下载的“签名生成工具”),把你项目的 包名 放在“输入框”里面,点击按钮“Get Signature”会在按钮下面生成一串绿色签名,保存起来一会要用到(如图)。(此刻,一定有童鞋会说我怎么没有看到生成绿色的一串签名?怎么提示“NameNotFoundExcption signs is null”(),正如其报错,肯定是你包名写错啦,或者就是你手机上忘记安装你们的App啦...)
应用平台签名更改
4 :这时候肯定有童鞋会问生成的这个签名是干嘛的有什么用?生成的签名是你们App的一个唯一标识,拿着这个标识(签名)去微信开放平台的管理中心 / 修改应用 / 修改开发信息,给Android的开发信息给填写一下(如图),签名 包名填写完保存一下。
5 : 流程的最后一步:到微信开放平台的 管理中心 / 应用中心 把你们的AppSecret和AppID保存起来。
sequenceDiagram
❤❤->> ❤ ❤: 直接上代码喽!
支付依赖
//微信支付
implementation 'com.tencent.mm.opensdk:wechat-sdk-android-with-mta:+'
App支付集成代码
WXPayUtils
package com.xyxy.app.wx;
import android.content.Context;
import android.util.Log;
import android.widget.Toast;
import com.tencent.mm.opensdk.modelpay.PayReq;
import com.tencent.mm.opensdk.openapi.IWXAPI;
import com.tencent.mm.opensdk.openapi.WXAPIFactory;
import org.cocos2dx.wolf.utils.ToastUtils;
import java.security.MessageDigest;
import java.util.LinkedHashMap;
import java.util.Map;
import java.util.Random;
/**
*
* 2018/12/5
*
* W
*
* */
public class WXPayUtils {
private IWXAPI iwxapi; //微信支付api
private WXPayBuilder builder;
private WXPayUtils(WXPayBuilder builder) {
this.builder = builder;
}
/**
* 调起微信支付的方法,不需要在客户端签名
**/
public void toWXPayNotSign(Context context) {
iwxapi = WXAPIFactory.createWXAPI(context, null); //初始化微信api
iwxapi.registerApp(builder.getAppId()); //注册appid appid可以在开发平台获取
Runnable payRunnable = new Runnable() { //这里注意要放在子线程
@Override
public void run() {
PayReq request = new PayReq(); //调起微信APP的对象
//下面是设置必要的参数,也就是前面说的参数,这几个参数从何而来请看上面说明
request.appId = builder.getAppId();
request.partnerId = builder.getPartnerId();
request.prepayId = builder.getPrepayId();
request.packageValue = builder.getPackageValue();
request.nonceStr = builder.getNonceStr();
request.timeStamp =builder.getTimeStamp();
request.sign = builder.getSign();
iwxapi.sendReq(request);//发送调起微信的请求
}
};
Thread payThread = new Thread(payRunnable);
payThread.start();
}
/**
* 调起微信支付的方法,需要在客户端签名
**/
public void toWXPayAndSign(Context context, String appid, final String key) {
iwxapi = WXAPIFactory.createWXAPI(context, null); //初始化微信api
iwxapi.registerApp(appid); //注册appid appid可以在开发平台获取
Runnable payRunnable = new Runnable() { //这里注意要放在子线程
@Override
public void run() {
PayReq request = new PayReq(); //调起微信APP的对象
//下面是设置必要的参数,也就是前面说的参数,这几个参数从何而来请看微信支付参数说明文档
request.appId = builder.getAppId();
request.partnerId = builder.getPartnerId();
request.prepayId = builder.getPrepayId();
request.packageValue = "Sign=WXPay";
// request.nonceStr = genNonceStr();
// request.timeStamp = String.valueOf(genTimeStamp());
request.nonceStr = builder.getNonceStr();
request.timeStamp = builder.getTimeStamp();
// request.sign = builder.getSign();
//签名
LinkedHashMap<String, String> signParams = new LinkedHashMap<>();
signParams.put("appid", request.appId);
signParams.put("noncestr", request.nonceStr);
signParams.put("package", "Sign=WXPay");
signParams.put("partnerid", request.partnerId);
signParams.put("prepayid", request.prepayId);
signParams.put("timestamp", request.timeStamp);
request.sign = genPackageSign(signParams, key);
boolean b = iwxapi.sendReq(request);//发送调起微信的请求
Log.d("WXPayUtils", "b:" + b);
}
};
Thread payThread = new Thread(payRunnable);
payThread.start();
if (!iwxapi.isWXAppInstalled()){
ToastUtils.show(context,"请安装微信!", Toast.LENGTH_SHORT);
}
}
/**
* 调起微信APP支付,签名
* 生成签名
*/
private String genPackageSign(LinkedHashMap<String, String> params, String key) {
StringBuilder sb = new StringBuilder();
for (Map.Entry<String, String> entry : params.entrySet()) {
sb.append(entry.getKey());
sb.append('=');
sb.append(entry.getValue());
sb.append('&');
}
sb.append("key=");
sb.append(key);
String packageSign = getMessageDigest(sb.toString().getBytes()).toUpperCase();
return packageSign;
}
/**
* md5加密
*
* @param buffer
* @return
*/
private String getMessageDigest(byte[] buffer) {
char hexDigits[] = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'};
try {
MessageDigest mdTemp = MessageDigest.getInstance("MD5");
mdTemp.update(buffer);
byte[] md = mdTemp.digest();
int j = md.length;
char str[] = new char[j * 2];
int k = 0;
for (int i = 0; i < j; i++) {
byte byte0 = md[i];
str[k++] = hexDigits[byte0 >>> 4 & 0xf];
str[k++] = hexDigits[byte0 & 0xf];
}
return new String(str);
} catch (Exception e) {
return null;
}
}
/**
* 获取随机数
*
* @return
*/
private String genNonceStr() {
Random random = new Random();
return getMessageDigest(String.valueOf(random.nextInt(10000)).getBytes());
}
/**
* 获取时间戳
*
* @return
*/
private long genTimeStamp() {
return System.currentTimeMillis() / 1000;
}
public static class WXPayBuilder {
public String appId;
public String partnerId;
public String prepayId;
public String packageValue;
public String nonceStr;
public String timeStamp;
public String sign;
public WXPayUtils build() {
return new WXPayUtils(this);
}
public String getAppId() {
return appId;
}
public WXPayBuilder setAppId(String appId) {
this.appId = appId;
return this;
}
public String getPartnerId() {
return partnerId;
}
public WXPayBuilder setPartnerId(String partnerId) {
this.partnerId = partnerId;
return this;
}
public String getPrepayId() {
return prepayId;
}
public WXPayBuilder setPrepayId(String prepayId) {
this.prepayId = prepayId;
return this;
}
public String getPackageValue() {
return packageValue;
}
public WXPayBuilder setPackageValue(String packageValue) {
this.packageValue = packageValue;
return this;
}
public String getNonceStr() {
return nonceStr;
}
public WXPayBuilder setNonceStr(String nonceStr) {
this.nonceStr = nonceStr;
return this;
}
public String getTimeStamp() {
return timeStamp;
}
public WXPayBuilder setTimeStamp(String timeStamp) {
this.timeStamp = timeStamp;
return this;
}
public String getSign() {
return sign;
}
public WXPayBuilder setSign(String sign) {
this.sign = sign;
return this;
}
}
}
WXPayEntryActivity
WXPayEntryActivity 要放在 wxapi 包下
packagecom.xyxy.app.wxapi;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.widget.Toast;
import com.tencent.mm.opensdk.constants.ConstantsAPI;
import com.tencent.mm.opensdk.modelbase.BaseReq;
import com.tencent.mm.opensdk.modelbase.BaseResp;
import com.tencent.mm.opensdk.openapi.IWXAPI;
import com.tencent.mm.opensdk.openapi.IWXAPIEventHandler;
import com.tencent.mm.opensdk.openapi.WXAPIFactory;
import com.umeng.analytics.MobclickAgent;
import org.cocos2dx.wolf.MyApplication;
import org.cocos2dx.wolf.utils.ShareUtils;
import java.util.HashMap;
import java.util.Map;
/**
*
* 2018/12/5
*
* W
*
* */
public class WXPayEntryActivity extends Activity implements IWXAPIEventHandler {
private IWXAPI api;
private String AppID=;//微信开放平台AppID
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
api = WXAPIFactory.createWXAPI(this, AppID);
api.handleIntent(getIntent(), this);
}
@Override
protected void onNewIntent(Intent intent) {
super.onNewIntent(intent);
setIntent(intent);
api.handleIntent(intent, this);
}
@Override
public void onResp(BaseResp resp) {
Log.d("WXPayEntryActivity", "微信返回错误码:" + resp.errCode);
if (resp.getType() == ConstantsAPI.COMMAND_PAY_BY_WX) {
if (resp.errCode == 0) {
Toast.makeText(this, "支付成功", Toast.LENGTH_LONG).show();
} else {
Log.e("java", "onResp: " + resp.errCode);
Toast.makeText(this, "取消支付", Toast.LENGTH_LONG).show();
}
finish();
}
}
@Override
public void onReq(BaseReq baseReq) {
}
}
MainActivity
Android代码调用
String appid = data.getAppid();
IWXAPI wxapi = WXAPIFactory.createWXAPI(app,appid,false);//初始化微信api
wxapi.registerApp(data.getAppid());
WXPayUtils.WXPayBuilder builder = new WXPayUtils.WXPayBuilder();
builder.setAppId(data.getAppid())
.setPrepayId(data.getPrepayid())
.setPackageValue(data.getPackageX())
.setNonceStr(data.getNoncestr())
.setTimeStamp(data.getTimestamp())
.setSign(data.getSign())
.build()
.toWXPayNotSign(app);
AndroidManifest.xml
//微信支付
<activity
android:name=".wxapi.WXPayEntryActivity"
android:configChanges="keyboardHidden|orientation|screenSize"
android:exported="true"
android:launchMode="singleInstance"
android:screenOrientation="portrait"
android:theme="@android:style/Theme.NoDisplay">
<intent-filter>
<action android:name="android.intent.action.VIEW" />
<category android:name="android.intent.category.DEFAULT" />
<data android:scheme="微信AppID"/>
</intent-filter>
</activity>
支付返回 “-1” 与 “闪屏”的原因解决
1,微信签名要用release包生成 测试的时候也要打release包安装到手机测试,不能run运行,否则 闪屏
2,AppID是否正确
3,AndroidManifest.xml的 name 固定是 name=".wxapi.WXPayEntryActivity"调用微信
完工!