微信APP支付-Java后台实现
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转自：http://blog.csdn.net/walle167/article/details/50957503
1 注册微信开放者平台
开发者平台地址：https://open.weixin.qq.com/
2 成为开发者
3 上传APP
4 开通微信支付功能
5 设置商户号信息
APP 支付能力开通后，微信会给你一个商户号，用户和密码等信息。需要验证商户信息，还需要设置一个加密的密钥字段，这里就不一一细说了。
6 开发接口
微信APP支付接口，是很好调试的，（不像微信公众平台，需要80端口），可以直接在本地就可以进行调试。 具体业务就不细说，直接看代码就懂了。
1 基础信息配置
package com.qx.client.common.pay.weichart.config;
import java.util.Properties;
import com.tom.util.properties.PropertiesUtil;
import com.tom.util.system.RSystemConfig;
public class WeiChartConfig
/**
* 预支付请求地址
*/
public static final String PrepayUrl = "https://api.mch.weixin.qq.com/pay/unifiedorder";
/**
* 查询订单地址
*/
public static final String OrderUrl = "https://api.mch.weixin.qq.com/pay/orderquery";
/**
* 关闭订单地址
*/
public static final String CloseOrderUrl = "https://api.mch.weixin.qq.com/pay/closeorder";
/**
* 申请退款地址
*/
public static final String RefundUrl = "https://api.mch.weixin.qq.com/secapi/pay/refund";
/**
* 查询退款地址
*/
public static final String RefundQueryUrl = "https://api.mch.weixin.qq.com/pay/refundquery";
/**
* 下载账单地址
*/
public static final String DownloadBillUrl = "https://api.mch.weixin.qq.com/pay/downloadbill";
/**
* 商户APPID
*/
public static final String AppId = "wxabcdefghjjsdfsd";
/**
* 商户账户 获取支付能力后，从邮件中得到
*/
public static final String MchId = "13000000000001";
/**
* 商户秘钥 32位，在微信商户平台中设置
*/
public static final String AppSercret = "qx12345645778679789";
/**
* 服务器异步通知页面路径
*/
public static String notify_url = getProperties().getProperty("notify_url");
/**
* 页面跳转同步通知页面路径
*/
public static String return_url = getProperties().getProperty("return_url");
/**
* 退款通知地址
*/
public static String refund_notify_url = getProperties().getProperty("refund_notify_url");
/**
* 退款需要证书文件，证书文件的地址
*/
public static String refund_file_path = getProperties().getProperty("refund_file_path");
/**
* 商品名称
*/
public static String subject = getProperties().getProperty("subject");
/**
* 商品描述
*/
public static String body = getProperties().getProperty("body");
private static Properties properties;
public static synchronized Properties getProperties()
if(properties == null)
String path = System.getenv(RSystemConfig.KEY_WEB_HOME_CONF) + "/weichart.properties";
properties = PropertiesUtil.getInstance().getProperties(path);
return properties;
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2 http /https请求的工具类
其中有需要证书的，也有不需要证书的。
证书是在需要退款接口的时候需要使用，直接把证书放在服务器上，然后传路径
package com.qx.client.common.pay.weichart.util.httpClient;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
import java.security.KeyStore;
import java.util.Map;
import javax.net.ssl.SSLContext;
import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.methods.PostMethod;
import org.apache.commons.httpclient.methods.StringRequestEntity;
import org.apache.commons.httpclient.params.HttpMethodParams;
import org.apache.http.HttpEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
import org.apache.http.conn.ssl.SSLContexts;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;
public class HttpClientUtil
public static String post(String url,
Map<String, String> headMap,
Map<String, String> params)
try
HttpClient httpclient = new HttpClient();
httpclient.getParams().setParameter(HttpMethodParams.HTTP_CONTENT_CHARSET, "UTF-8");
PostMethod httpPost = new PostMethod(url);
if(null != headMap)
for(String key : headMap.keySet())
httpPost.setRequestHeader(key, headMap.get(key));
if(null != params)
for(String pkey : params.keySet())
httpPost.addParameter(pkey, params.get(pkey));
httpclient.executeMethod(httpPost);
BufferedReader reader = new BufferedReader(new InputStreamReader(httpPost.getResponseBodyAsStream()));
StringBuffer stringBuffer = new StringBuffer();
String str = "";
while((str = reader.readLine()) != null)
stringBuffer.append(str);
reader.close();
return stringBuffer.toString();
catch(Exception e)
e.printStackTrace();
return null;
public static String postHttplient(String url,
String xmlInfo)
try
HttpClient httpclient = new HttpClient();
httpclient.getParams().setParameter(HttpMethodParams.HTTP_CONTENT_CHARSET, "UTF-8");
PostMethod httpPost = new PostMethod(url);
httpPost.setRequestEntity(new StringRequestEntity(xmlInfo));
httpclient.executeMethod(httpPost);
BufferedReader reader = new BufferedReader(new InputStreamReader(httpPost.getResponseBodyAsStream()));
StringBuffer stringBuffer = new StringBuffer();
String str = "";
while((str = reader.readLine()) != null)
stringBuffer.append(str);
reader.close();
return stringBuffer.toString();
catch(Exception e)
e.printStackTrace();
return null;
/**
* 需要加密执行的
* @param url
* @param xmlInfo
* @return
* @throws Exception
*/
public static String postHttplientNeedSSL(String url,
String xmlInfo,
String cretPath,
String mrchId)
throws Exception
//选择初始化密钥文件格式
KeyStore keyStore = KeyStore.getInstance("PKCS12");
//得到密钥文件流
FileInputStream instream = new FileInputStream(new File(cretPath));
try
//用商户的ID 来解读文件
keyStore.load(instream, mrchId.toCharArray());
finally
instream.close();
//用商户的ID 来加载
SSLContext sslcontext = SSLContexts.custom().loadKeyMaterial(keyStore, mrchId.toCharArray()).build();
// Allow TLSv1 protocol only
SSLConnectionSocketFactory sslsf = new SSLConnectionSocketFactory(sslcontext, new String[] "TLSv1" , null, SSLConnectionSocketFactory.BROWSER_COMPATIBLE_HOSTNAME_VERIFIER);
//用最新的httpclient 加载密钥
CloseableHttpClient httpclient = HttpClients.custom().setSSLSocketFactory(sslsf).build();
StringBuffer ret = new StringBuffer();
try
HttpPost httpPost = new HttpPost(url);
httpPost.setEntity(new StringEntity(xmlInfo));
CloseableHttpResponse response = httpclient.execute(httpPost);
try
HttpEntity entity = response.getEntity();
if(entity != null)
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(entity.getContent()));
String text;
while((text = bufferedReader.readLine()) != null)
ret.append(text);
EntityUtils.consume(entity);
finally
response.close();
finally
httpclient.close();
return ret.toString();
public static String postHtpps(String urlStr,
String xmlInfo)
try
URL url = new URL(urlStr);
URLConnection con = url.openConnection();
con.setDoOutput(true);
con.setRequestProperty("Pragma:", "no-cache");
con.setRequestProperty("Cache-Control", "no-cache");
con.setRequestProperty("Content-Type", "text/xml;charset=utf-8");
OutputStreamWriter out = new OutputStreamWriter(con.getOutputStream(), "utf-8");
out.write(xmlInfo);
out.flush();
out.close();
BufferedReader br = new BufferedReader(new InputStreamReader(con.getInputStream()));
StringBuffer lines = new StringBuffer();
String line = "";
for(line = br.readLine(); line != null; line = br.readLine())
lines.append(line);
return lines.toString();
catch(MalformedURLException e)
e.printStackTrace();
catch(IOException e)
e.printStackTrace();
return null;
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- APP微信支付Java后台的实现（springmvc）