android微信支付测试遇到的坑，得不到prepay_id
2016-12-14 16:55
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特别注意：spill_create_ip一定要是测试手机的ip，在设置----关于手机----版本信息里面找到ip；
//PayActivity的代码
//异步任务进行网络请求，想微信统一下单接口传递XML字符串，获得byte[ ] 数组，转化成字符串，获得xml字符串，解析获得prepay_id值，基本就达到目的了
//一下是转载的签名算法以及xml解析方法
//保存所有信息的自定义类
//PayActivity的代码
package com.example.administrator.demopaywx;
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
import com.tencent.mm.sdk.openapi.IWXAPI;
import com.tencent.mm.sdk.openapi.WXAPIFactory;
import java.util.Locale;
public class PayActivity extends Activity {
private IWXAPI api;
Button appayBtn;
//随机字符串
static String nonce_str;
//通知地址
static String notify_url;
//商户订单号
static String out_trade_no;
//客户端ipv4地址（必须是本机的ip地址）
String spbill_create_ip = "192.168.2.170";
//发送的xml字符串
String entity;
//商品描述
String body;
//事件戳
String timestamp;
//总金额(单位分)
1504f
int total_fee;
//第一次签名
static String sign;
//微信统一下单接口
final String url = "https://api.mch.weixin.qq.com/pay/unifiedorder";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.pay);
api = WXAPIFactory.createWXAPI(this, Constants.APP_ID);
api.registerApp(Constants.APP_ID);
initReq();
initView();
}
private void initReq() {
body = "iphone";
nonce_str = ResourceUtil.createRandomString(32);
Log.e("==========","======nonce_str======"+nonce_str+" length="+nonce_str.length());
notify_url = "http://www.weixin.qq.com/wxpay/pay.php";
out_trade_no = ResourceUtil.generateOutTradeNo(32);
Log.e("================","=======out_trade_no========="+out_trade_no+" length="+out_trade_no.length());
total_fee = 1;
timestamp = getTimeStamp();
Log.e("==============","=====timestamp======"+timestamp+" length="+timestamp.length());
String A = "appid=" + Constants.APP_ID +
"&body=" + body +
"&mch_id=" + Constants.MCH_ID +
"&nonce_str=" + nonce_str +
"¬ify_url=" + notify_url +
"&out_trade_no=" + out_trade_no +
"&spbill_create_ip=" +spbill_create_ip+
"&total_fee=" + total_fee +
"&trade_type=APP" +
"&key=" + Constants.APP_KEY;
sign = MD5.getMessageDigest(A.getBytes()).toUpperCase(Locale.getDefault());
Log.e("===========","=======signsign====="+sign+" length="+sign.length());
// 参数以xml格式传递
entity = "<xml>" +
"<appid>wx78d09351c6c8ec4e</appid>" +
"<body>" + body + "</body>" +
"<mch_id>" + Constants.MCH_ID + "</mch_id>" +
"<nonce_str>" + nonce_str + "</nonce_str>" +
"<out_trade_no>" + out_trade_no + "</out_trade_no>" +
"<spbill_create_ip>" + spbill_create_ip + "</spbill_create_ip>" +
"<total_fee>" + total_fee + "</total_fee>" +
"<notify_url>" + notify_url + "</notify_url>" +
"<trade_type>APP</trade_type>" +
"<sign>" + sign + "</sign>" +
"</xml>";
}
private String getTimeStamp() {
return String.valueOf(System.currentTimeMillis() / 1000);
}
private void initView(){
TextView tv_thing;
TextView tv_money;
TextView tv_from;
tv_thing = (TextView) findViewById(R.id.pay_thing);
tv_from = (TextView) findViewById(R.id.pay_from);
tv_money = (TextView) findViewById(R.id.pay_money);
tv_thing.setText("商品:"+body);
tv_money.setText("总金额："+total_fee+"");
tv_from.setText("商户"+Constants.MCH_ID);
appayBtn = (Button) findViewById(R.id.appay_btn);
appayBtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
appayBtn.setEnabled(false);
Toast.makeText(PayActivity.this, "获取订单中......", Toast.LENGTH_SHORT).show();
Log.e("==============","==========entity===="+entity);
new GetPrepayIdTask(api).execute(url,entity);
}
});
}
}//异步任务进行网络请求，想微信统一下单接口传递XML字符串，获得byte[ ] 数组，转化成字符串，获得xml字符串，解析获得prepay_id值，基本就达到目的了
package com.example.administrator.demopaywx;
import android.os.AsyncTask;
import android.util.Log;
import com.tencent.mm.sdk.modelpay.PayReq;
import com.tencent.mm.sdk.openapi.IWXAPI;
import java.util.Locale;
/**
* Created by Administrator on 2016/12/13.
*/
public class GetPrepayIdTask extends AsyncTask<String,Void,OrderResult> {
public static final String TAG = "GetPrepayIdTask";
private IWXAPI api;
public GetPrepayIdTask(IWXAPI api) {
this.api = api;
}
@Override
protected void onPreExecute() {
super.onPreExecute();
}
@Override
protected OrderResult doInBackground(String... strings) {
Log.e("============","=========doInBackground============");
OrderResult result;
String url = String.format(strings[0]);
byte[] buf = Util.httpPost(url,strings[1]);
String content = new String(buf);
Log.e("========","=========content========="+content);
result = DecodeXmlUtil.decodeXML(content);
return result;
}
@Override
protected void onPostExecute(OrderResult orderResult) {
sendPayReq(orderResult);
}
private void sendPayReq(OrderResult result) {
String prepare_id = result.getPrepayId();
Log.e("============","=====result====="+result.toString());
Log.e("==========","========prepare_id==========="+prepare_id);
Log.d(TAG, "sendPayReq, prepare_id = " + prepare_id + ", sign = " + result.getSign());
if (prepare_id == null || prepare_id.length() == 0) {
Log.e("==========","======================================");
Log.e(TAG, "sendPayReq fail, prepare_id is empty");
}
// result = orderResult;
PayReq req = new PayReq();
req.appId = result.getAppId();
req.nonceStr = result.getNonceStr();//随机字符串
req.partnerId = result.getMchId();//商户号
req.prepayId = result.getPrepayId();
req.timeStamp = getTimeStamp();//时间戳
req.packageValue = "Sign=WXPay";//固定字符串
req.sign = SignUtil.signByMD5("appid=" + Constants.APP_ID +
"&noncestr=" + req.nonceStr +
"&package=Sign=WXPay" +
"&partnerid=" + req.partnerId +
"&prepayid=" + req.prepayId +
"×tamp=" + req.timeStamp +
"&key=" + Constants.APP_KEY).toUpperCase(Locale.getDefault());//签名
// 在支付之前，如果应用没有注册到微信，应该先调用IWXMsg.registerApp将应用注册到微信
api.sendReq(req);
}
private String getTimeStamp() {
return String.valueOf(System.currentTimeMillis() / 1000);
}
private static OrderResult orderResult = new OrderResult(
"success","success","001","0","012adfjmgoaalmaoisja3456",
Constants.APP_ID,Constants.MCH_ID,PayActivity.sign,"APP",PayActivity.nonce_str);
}//一下是转载的签名算法以及xml解析方法
package com.example.administrator.demopaywx;
import android.util.Log;
import android.util.Xml;
import org.xmlpull.v1.XmlPullParser;
import java.io.StringReader;
/**
* Created by Administrator on 2016/12/13.
*/
public class DecodeXmlUtil {
public static OrderResult decodeXML(String content) {
XmlPullParser parser = Xml.newPullParser();
OrderResult bean = new OrderResult();
try {
parser.setInput(new StringReader(content));
int event = parser.getEventType();
while (event != XmlPullParser.END_DOCUMENT) {
switch (event) {
case XmlPullParser.START_DOCUMENT:
break;
case XmlPullParser.START_TAG:
if ("return_code".equals(parser.getName())) {
parser.next();
bean.setReturnCode(parser.getText().toString());
} else if ("return_msg".equals(parser.getName())) {
parser.next();
bean.setReturnMsg(parser.getText().toString());
}else if ("appid".equals(parser.getName())) {
parser.next();
bean.setAppId(parser.getText().toString());
Log.e("=========","======parser.getText()=="+parser.getText());
}else if ("mch_id".equals(parser.getName())) {
parser.next();
bean.setMchId(parser.getText().toString());
Log.e("=========","======setMchId=="+parser.getText());
}else if ("nonce_str".equals(parser.getName())) {
parser.next();
bean.setNonceStr(parser.getText().toString());
Log.e("=========","======etNonceSt=="+parser.getText());
}else if ("sign".equals(parser.getName())) {
parser.next();
bean.setSign(parser.getText().toString());
Log.e("=========","======setSign=="+parser.getText());
}else if ("result_code".equals(parser.getName())) {
parser.next();
bean.setResultCode(parser.getText().toString());
Log.e("=========","======setResultCode=="+parser.getText());
}else if ("prepay_id".equals(parser.getName())) {
parser.next();
bean.setPrepayId(parser.getText().toString());
Log.e("=========","======setPrepayId=="+parser.getText());
}else if ("trade_type".equals(parser.getName())) {
parser.next();
bean.setTradeType(parser.getText().toString());
Log.e("=========","======parser.setTradeType()=="+parser.getText());
}
break;
case XmlPullParser.END_TAG:
break;
}
event = parser.next();
}
} catch (Exception e) {
e.printStackTrace();
}
return bean;
}
}package com.example.administrator.demopaywx;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
/**
* Created by Administrator on 2016/12/11.
*/
public class SignUtil {
public static String signByMD5(String source) {
byte[] bytes = null;
try {
MessageDigest digest = MessageDigest.getInstance("MD5");
digest.update(source.getBytes()); //更新摘要
bytes = digest.digest(); //再通过执行诸如填充之类的最终操作完成哈希计算。在调用此方法之后，摘要被重置。
} catch (NoSuchAlgorithmException e) {
e.printStackTrace();
}
StringBuilder builder = new StringBuilder(bytes.length * 2);
for (byte b : bytes) {
/**
* 0xFF默认是整形，一个byte跟0xFF相与会先将那个byte转化成整形运算
*/
if ((b & 0xFF) < 0x10) { //如果为1位 前面补个0
builder.append("0");
}
builder.append(Integer.toHexString(b & 0xFF));
}
return builder.toString();
}
}//保存所有信息的自定义类
package com.example.administrator.demopaywx;
/**
* Created by Administrator on 2016/12/11.
*/
public class OrderResult {
public OrderResult(String returnCode, String returnMsg, String resultCode, String errorDesc, String prepayId, String appId, String mchId, String sign, String tradeType, String nonceStr) {
this.returnCode = returnCode;
this.returnMsg = returnMsg;
this.resultCode = resultCode;
this.errorDesc = errorDesc;
this.prepayId = prepayId;
this.appId = appId;
this.mchId = mchId;
this.sign = sign;
this.tradeType = tradeType;
this.nonceStr = nonceStr;
}
public OrderResult() {
}
public String getReturnCode() {
return returnCode;
}
public void setReturnCode(String returnCode) {
this.returnCode = returnCode;
}
public String getReturnMsg() {
return returnMsg;
}
public void setReturnMsg(String returnMsg) {
this.returnMsg = returnMsg;
}
public String getResultCode() {
return resultCode;
}
public void setResultCode(String resultCode) {
this.resultCode = resultCode;
}
public String getErrorDesc() {
return errorDesc;
}
public void setErrorDesc(String errorDesc) {
this.errorDesc = errorDesc;
}
public String getPrepayId() {
return prepayId;
}
public void setPrepayId(String prepareId) {
this.prepayId = prepareId;
}
@Override
public String toString() {
return "OrderResult{" +
"returnCode='" + returnCode + '\'' +
", returnMsg='" + returnMsg + '\'' +
", resultCode='" + resultCode + '\'' +
", errorDesc='" + errorDesc + '\'' +
", prepayId='" + prepayId + '\'' +
", appId='" + appId + '\'' +
", mchId='" + mchId + '\'' +
", sign='" + sign + '\'' +
", tradeType='" + tradeType + '\'' +
", nonceStr='" + nonceStr + '\'' +
'}';
}
String returnCode;
String returnMsg;
String resultCode;
String errorDesc;
String prepayId;
String appId;
String mchId;
String sign;
String tradeType;
String nonceStr;
public String getAppId() {
return appId;
}
public void setAppId(String appId) {
this.appId = appId;
}
public String getMchId() {
return mchId;
}
public void setMchId(String mchId) {
this.mchId = mchId;
}
public String getSign() {
return sign;
}
public void setSign(String sign) {
this.sign = sign;
}
public String getTradeType() {
return tradeType;
}
public void setTradeType(String tradeType) {
this.tradeType = tradeType;
}
public String getNonceStr() {
return nonceStr;
}
public void setNonceStr(String nonceStr) {
this.nonceStr = nonceStr;
}
}
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