微信APP支付Java代码

微信APP支付Java代码

本文实例为大家分享了java微信APP支付代码，供大家参考，具体内容如下

import java.io.IOException;

import java.io.UnsupportedEncodingException;

import java.util.Random;

import org.apache.http.ParseException;

import org.apache.http.client.ClientProtocolException;

import org.apache.http.client.methods.HttpPost;

import org.apache.http.entity.StringEntity;

import org.apache.http.impl.client.DefaultHttpClient;

import org.apache.http.util.EntityUtils;

import org.json.JSONArray;

import org.json.JSONML;

import org.json.JSONObject;

public class Test {

private static final String appid = "wx0378bf81abfe3d26";//自己设置

private static final int mch_id = 1252196606;//自己设置

private static final String api_key = "b8b9c2bbe92d57cc38fde49745056167";//自己设置

private static final String notify_url = "http://xxx.com/weixin_notify_url.jsp";//自己设置

private static final String trade_type = "APP";//

public static void main(String[] args) {

postToWeChat("5455545", "test", 0.01);

postToWeChat("5455545", "中文", 0.01);//会失败

}

/**

* 提交到微信

*

* @param out_trade_no

* 自己系统的订单号

* @param body

* 标题

* @param money

* 金额

* @return

*/

private static JSONObject postToWeChat(String out_trade_no, String body, double money) {

StringBuilder xml = new StringBuilder();

String nonce_str = getRandomString(32);

String ip = "127.0.0.1";// 客户端IP自己处理

JSONObject jso = new JSONObject();

String prepay_id = "", sign = "";

try {

String weixinMoney = new java.text.DecimalFormat("#").format(money * 100);// 微信是以分为单位的所以要乘以100

xml.append("appid=").append(appid).append("&body=").append(new String(body.getBytes("UTF-8"), "utf-8"));

xml.append("&mch_id=").append(mch_id).append("&nonce_str=").append(nonce_str);

xml.append("¬ify_url=").append(notify_url).append("&out_trade_no=").append(out_trade_no).append("&spbill_create_ip=").append(ip);

xml.append("&total_fee=").append(weixinMoney).append("&trade_type=").append(trade_type).append("&key=").append(api_key);

sign = new Util().MD5Purity(xml.toString()).toUpperCase();// MD5加密签名加密类自己解决就不放上来了

xml.delete(0, xml.length());

xml.append("");

xml.append(" ").append(appid).append("");

xml.append("

xml.append(" ").append(mch_id).append("");

xml.append(" ").append(nonce_str).append("");

xml.append(" ").append(notify_url).append("");

xml.append(" ").append(out_trade_no).append("");

xml.append(" ").append(ip).append("");

xml.append(" ").append(weixinMoney).append("");

xml.append(" ").append(trade_type).append("");

xml.append(" ").append(sign).append("");

xml.append("");

HttpPost post = new HttpPost("https://api.mch.weixin.qq.com/pay/unifiedorder");

StringEntity entity = new StringEntity(xml.toString(), "UTF-8");

entity.setContentEncoding("utf-8");

entity.setContentType("text/xml");

post.setEntity(entity);

JSONArray childNodes = JSONML.toJSONObject(EntityUtils.toString(new DefaultHttpClient().execute(post).getEntity(), "utf-8")).getJSONArray(

"childNodes");

System.out.println(childNodes);

int len = childNodes.length() - 1;

for (int i = len; i > -1; i--) {

JSONObject js = childNodes.getJSONObject(i);

if (js.get("tagName").equals("prepay_id")) {

prepay_id = js.getJSONArray("childNodes").getString(0);

break;

}

}

} catch (UnsupportedEncodingException e) {

e.printStackTrace();

} catch (ParseException e) {

e.printStackTrace();

} catch (ClientProtocolException e) {

e.printStackTrace();

} catch (IOException e) {

e.printStackTrace();

}

jso.put("sign", sign);

jso.put("appid", appid);

jso.put("noncestr", nonce_str);

jso.put("package", "Sign=WXPay");

jso.put("partnerid", mch_id);

jso.put("prepayid", prepay_id);

jso.put("timestamp", System.currentTimeMillis());

return jso;

}

/**

* 表示生成字符串的长度

*

* @param length

* @return

*/

private static String getRandomString(int length) {

String base = "abcdefghijklmnopqrstuvwxyz0123456789";

Random random = new Random();

StringBuffer sb = new StringBuffer();

for (int i = 0; i < length; i++) {

int number = random.nextInt(base.length());

sb.append(base.charAt(number));

}

return sb.toString();

}

}

以上就是本文的全部内容，希望对大家学习java程序设计有所帮助。

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