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下面是官方demo中的主acrivity,运行后先后点击“生成支付订单-生成APP微信支付参数-调起微信支付” 就是提示： 在哪里设置商品名称和价格呢？怎么就支付了呢？
package com.ldkj.yaodian.customer;
import java.io.*;
import java.net.Inet4Address;
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.util.*;
import android.util.Xml;
import android.widget.TextView;
import org.apache.http.NameValuePair;
import org.apache.http.message.BasicNameValuePair;
import android.app.Activity;
import android.app.ProgressDialog;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import com.tencent.mm.sdk.modelpay.PayReq;
import com.tencent.mm.sdk.openapi.IWXAPI;
import com.tencent.mm.sdk.openapi.WXAPIFactory;
import org.xmlpull.v1.XmlPullParser;
/**
* 微信支付
* @author 孟祥程
*
*/
public class PayActivity extends Activity {
private static final String TAG = "MicroMsg.SDKSample.PayActivity";
PayReq req;
final IWXAPI msgApi = WXAPIFactory.createWXAPI(this, null);
TextView show;
Map<String,String> resultunifiedorder;
StringBuffer sb;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.pay);
show =(TextView)findViewById(R.id.editText_prepay_id);
req = new PayReq();
sb=new StringBuffer();
msgApi.registerApp(Constants.APP_ID);
//生成prepay_id
Button payBtn = (Button) findViewById(R.id.unifiedorder_btn);
payBtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
GetPrepayIdTask getPrepayId = new GetPrepayIdTask();
getPrepayId.execute();
}
});
Button appayBtn = (Button) findViewById(R.id.appay_btn);
appayBtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
sendPayReq();
}
});
//生成签名参数
Button appay_pre_btn = (Button) findViewById(R.id.appay_pre_btn);
appay_pre_btn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
genPayReq();
}
});
}
/**
生成签名
*/
private String genPackageSign(List<NameValuePair> params) {
StringBuilder sb = new StringBuilder();
for (int i = 0; i < params.size(); i++) {
sb.append(params.get(i).getName());
sb.append(""="");
sb.append(params.get(i).getValue());
sb.append(""&"");
}
sb.append("key=");
sb.append(Constants.API_KEY);
String packageSign = MD5.getMessageDigest(sb.toString().getBytes()).toUpperCase();
Log.e("orion",packageSign);
return packageSign;
}
private String genAppSign(List<NameValuePair> params) {
StringBuilder sb = new StringBuilder();
for (int i = 0; i < params.size(); i++) {
sb.append(params.get(i).getName());
sb.append(""="");
sb.append(params.get(i).getValue());
sb.append(""&"");
}
sb.append("key=");
sb.append(Constants.API_KEY);
this.sb.append("sign str\n"+sb.toString()+"\n\n");
String appSign = MD5.getMessageDigest(sb.toString().getBytes());
Log.e("orion",appSign);
return appSign;
}
private String toXml(List<NameValuePair> params) {
StringBuilder sb = new StringBuilder();
sb.append("<xml>");
for (int i = 0; i < params.size(); i++) {
sb.append("<"+params.get(i).getName()+">");
sb.append(params.get(i).getValue());
sb.append("</"+params.get(i).getName()+">");
}
sb.append("</xml>");
Log.e("orion",sb.toString());
return sb.toString();
}
private class GetPrepayIdTask extends AsyncTask<Void, Void, Map<String,String>> {
private ProgressDialog dialog;
@Override
protected void onPreExecute() {
dialog = ProgressDialog.show(PayActivity.this, getString(R.string.app_tip), getString(R.string.getting_prepayid));
}
@Override
protected void onPostExecute(Map<String,String> result) {
if (dialog != null) {
dialog.dismiss();
}
sb.append("prepay_id\n"+result.get("prepay_id")+"\n\n");
show.setText(sb.toString());
resultunifiedorder=result;
}
@Override
protected void onCancelled() {
super.onCancelled();
}
@Override
protected Map<String,String> doInBackground(Void... params) {
String url = String.format("https://api.mch.weixin.qq.com/pay/unifiedorder");
String entity = genProductArgs();
Log.e("orion",entity);
byte[] buf = Util.httpPost(url, entity);
String content = new String(buf);
Log.e("orion", content);
Map<String,String> xml=decodeXml(content);
return xml;
}
}
public Map<String,String> decodeXml(String content) {
try {
Map<String, String> xml = new HashMap<String, String>();
XmlPullParser parser = Xml.newPullParser();
parser.setInput(new StringReader(content));
int event = parser.getEventType();
while (event != XmlPullParser.END_DOCUMENT) {
String nodeName=parser.getName();
switch (event) {
case XmlPullParser.START_DOCUMENT:
break;
case XmlPullParser.START_TAG:
if("xml".equals(nodeName)==false){
//实例化student对象
xml.put(nodeName,parser.nextText());
}
break;
case XmlPullParser.END_TAG:
break;
}
event = parser.next();
}
return xml;
} catch (Exception e) {
Log.e("orion",e.toString());
}
return null;
}
private String genNonceStr() {
Random random = new Random();
return MD5.getMessageDigest(String.valueOf(random.nextInt(10000)).getBytes());
}
private long genTimeStamp() {
return System.currentTimeMillis() / 1000;
}
private String genOutTradNo() {
Random random = new Random();
return MD5.getMessageDigest(String.valueOf(random.nextInt(10000)).getBytes());
}
//
private String genProductArgs() {
StringBuffer xml = new StringBuffer();
try {
String nonceStr = genNonceStr();
xml.append("</xml>");
List<NameValuePair> packageParams = new LinkedList<NameValuePair>();
packageParams.add(new BasicNameValuePair("appid", Constants.APP_ID));
packageParams.add(new BasicNameValuePair("body", "APP pay test"));
packageParams.add(new BasicNameValuePair("mch_id", Constants.MCH_ID));
packageParams.add(new BasicNameValuePair("nonce_str", nonceStr));
packageParams.add(new BasicNameValuePair("notify_url", "http://shenghuomofang.com"));
packageParams.add(new BasicNameValuePair("out_trade_no",genOutTradNo()));
packageParams.add(new BasicNameValuePair("spbill_create_ip",getPhoneIp()));
packageParams.add(new BasicNameValuePair("total_fee", "1"));
packageParams.add(new BasicNameValuePair("trade_type", "APP"));
String sign = genPackageSign(packageParams);
packageParams.add(new BasicNameValuePair("sign", sign));
String xmlstring =toXml(packageParams);
//解决body传中文报签名错误的问题，生成的xml请求参数转为字节数组后，用“ISO8859-1”编码格式进行编码为字符
return new String(xmlstring.getBytes(),"ISO8859-1");
} catch (Exception e) {
Log.e(TAG, "genProductArgs fail, ex = " + e.getMessage());
return null;
}
}
private void genPayReq() {
req.appId = Constants.APP_ID;
req.partnerId = Constants.MCH_ID;
req.prepayId = resultunifiedorder.get("prepay_id");
req.packageValue = "prepay_id="+resultunifiedorder.get("prepay_id");
req.nonceStr = genNonceStr();
req.timeStamp = String.valueOf(genTimeStamp());
List<NameValuePair> signParams = new LinkedList<NameValuePair>();
signParams.add(new BasicNameValuePair("appid", req.appId));
signParams.add(new BasicNameValuePair("noncestr", req.nonceStr));
signParams.add(new BasicNameValuePair("package", req.packageValue));
signParams.add(new BasicNameValuePair("partnerid", req.partnerId));
signParams.add(new BasicNameValuePair("prepayid", req.prepayId));
signParams.add(new BasicNameValuePair("timestamp", req.timeStamp));
req.sign = genAppSign(signParams);
sb.append("sign\n"+req.sign+"\n\n");
show.setText(sb.toString());
Log.e("orion", signParams.toString());
}
private void sendPayReq() {
msgApi.registerApp(Constants.APP_ID);
msgApi.sendReq(req);
}
public static String getPhoneIp() {
try {
for (Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces(); en.hasMoreElements();) {
NetworkInterface intf = en.nextElement();
for (Enumeration<InetAddress> enumIpAddr = intf.getInetAddresses(); enumIpAddr.hasMoreElements();) {
InetAddress inetAddress = enumIpAddr.nextElement();
if (!inetAddress.isLoopbackAddress() && inetAddress instanceof Inet4Address) {
// if (!inetAddress.isLoopbackAddress() && inetAddress
// instanceof Inet6Address) {
return inetAddress.getHostAddress().toString();
}
}
}
} catch (Exception e) {
}
return "127.0.0.1";
}
}
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#220分 |
packageParams.add(new BasicNameValuePair(“total_fee”, “1”));
这句代码里，默认支付金额为1分。 |
#320分 |
商品名称和价格需要你在界面里自己做。
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#410分 |
packageParams.add(new BasicNameValuePair(“body”, “APP pay test”));
—————————— 这里写商品名称 |
#5 |
这个demo不行啊，替换了appid那些东西还是返回-1，楼主遇到了这样的情况吗？
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