android 支付宝接口开发,android 实现支付宝wap接口编程

Java代码

/**

* 根据订单生成支付宝接口URL.

* @param httpRequest

* @param order 订单实例

* @return

* @throws Exception

*/

public static String makeOrderAlipayUrl(HttpServletRequest httpRequest,Order order) throws Exception {

HashMap hm = new HashMap();

hm.put("_input_charset",httpRequest.getCharacterEncoding());//采用相同的编码方式

hm.put("body","您在www.xxx.com上的订单");//填写在跳到支付宝页面上显示的付款内容信息

hm.put("discount","-5");//填写折扣信息 -5表示抵扣5元

hm.put("logistics_fee","10");//物流费用

hm.put("logistics_payment","BUYER_PAY");//物流费用支付人 BUYER_PAY=买家支付物流费用

hm.put("logistics_type","EXPRESS");//物流方式

hm.put("notify_url","http://www.xxx.com/notifyurl.jsp");//客户付款后,支付宝调用的页面

hm.put("out_trade_no",order.getId());//外部交易号,最好具有唯一性,在获取支付宝发来的付款信息时使用.

hm.put("partner",partnerId);//partnerId(合作伙伴ID)

hm.put("agent",partnerId);//partnerId(合作伙伴ID)

hm.put("payment_type","1");//支付类型 1=商品购买,2=服务购买,...

hm.put("price","105.30");//订单金额信息

hm.put("quantity","1");//订单商品数量,一般都是写1,它是按照整个订单包来计算

hm.put("return_url","http://www.xxx.com/ReturnUrl.jsp");//客户付款成功后,显示给客户的页面

hm.put("seller_email","alipay@xxx.com");//你的支付宝账户email

hm.put("service","create_direct_pay_by_user");//create_direct_pay_by_user=直接付款,trade_create_by_buyer 担保付款

hm.put("subject","www.xxx.com的订单");//填写在跳到支付宝页面上显示的付款标题信息

String payGateway = "https://www.alipay.com/cooperate/gateway.do?";//跳转到支付宝的url头

return makeUrl(hm,securityCode,httpRequest.getCharacterEncoding(),payGateway);//securityCode(安全码)

}

/**

* 根据传入的参数生成alipay的支付URL

* @param hm 参数值

* @param securityCode 安全码

* @param charset 编码

* @param payGateway 支付宝gateway

* @return

*/

public static String makeUrl(HashMap hm,String securityCode,String charset,String payGateway) throws Exception{

List keys = new ArrayList(hm.keySet());

Collections.sort(keys);//支付宝要求参数必须按字母排序

StringBuffer content = new StringBuffer();

for (int i = 0; i < keys.size(); i++) {

content.append((String) keys.get(i));

content.append("=");

content.append((String) hm.get((String) keys.get(i)));

if (i != keys.size() - 1) {

content.append("&");

}

}

content.append(securityCode);

String sign = md5(content.toString(),charset);

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

content.append(payGateway);

for (int i = 0; i < keys.size(); i++) {

content.append(keys.get(i));

content.append("=");

content.append(URLEncoder.encode((String) hm.get(keys.get(i)), charset));

content.append("&");

}

content.append("sign=");

content.append(sign);

content.append("&sign_type=MD5");

keys.clear();

keys = null;

return content.toString();

}

/**

* 生成md5编码字符串.

* @param str 源字符串

* @param charset 编码方式

* @return

*

*/

public static String md5(String str,String charset) {

if (str == null)

return null;

char hexDigits[] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',

'a', 'b', 'c', 'd', 'e', 'f' };

MessageDigest md5MessageDigest = null;

byte[] md5Bytes = null;

char md5Chars[] = null;

byte[] strBytes = null;

try {

strBytes = str.getBytes(charset);

md5MessageDigest = MessageDigest.getInstance("MD5");

md5MessageDigest.update(strBytes);

md5Bytes = md5MessageDigest.digest();

int j = md5Bytes.length;

md5Chars = new char[j * 2];

int k = 0;

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

byte md5Byte = md5Bytes[i];

md5Chars[k++] = hexDigits[md5Byte >>> 4 & 0xf];

md5Chars[k++] = hexDigits[md5Byte & 0xf];

}

return new String(md5Chars);

} catch (NoSuchAlgorithmException e) {

//Log.output(e.toString(), Log.STD_ERR);

return null;

} catch (UnsupportedEncodingException e) {

//Log.output(e.toString(), Log.STD_ERR);

return null;

} finally {

md5MessageDigest = null;

strBytes = null;

md5Bytes = null;

}

}

/**

* 根据订单生成支付宝接口URL.

* @param httpRequest

* @param order 订单实例

* @return

* @throws Exception

*/

public static String makeOrderAlipayUrl(HttpServletRequest httpRequest,Order order) throws Exception {

HashMap hm = new HashMap();

hm.put("_input_charset",httpRequest.getCharacterEncoding());//采用相同的编码方式

hm.put("body","您在www.xxx.com上的订单");//填写在跳到支付宝页面上显示的付款内容信息

hm.put("discount","-5");//填写折扣信息 -5表示抵扣5元

hm.put("logistics_fee","10");//物流费用

hm.put("logistics_payment","BUYER_PAY");//物流费用支付人 BUYER_PAY=买家支付物流费用

hm.put("logistics_type","EXPRESS");//物流方式

hm.put("notify_url","http://www.xxx.com/notifyurl.jsp");//客户付款后,支付宝调用的页面

hm.put("out_trade_no",order.getId());//外部交易号,最好具有唯一性,在获取支付宝发来的付款信息时使用.

hm.put("partner",partnerId);//partnerId(合作伙伴ID)

hm.put("agent",partnerId);//partnerId(合作伙伴ID)

hm.put("payment_type","1");//支付类型 1=商品购买,2=服务购买,...

hm.put("price","105.30");//订单金额信息

hm.put("quantity","1");//订单商品数量,一般都是写1,它是按照整个订单包来计算

hm.put("return_url","http://www.xxx.com/ReturnUrl.jsp");//客户付款成功后,显示给客户的页面

hm.put("seller_email","alipay@xxx.com");//你的支付宝账户email

hm.put("service","create_direct_pay_by_user");//create_direct_pay_by_user=直接付款,trade_create_by_buyer 担保付款

hm.put("subject","www.xxx.com的订单");//填写在跳到支付宝页面上显示的付款标题信息

String payGateway = "https://www.alipay.com/cooperate/gateway.do?";//跳转到支付宝的url头

return makeUrl(hm,securityCode,httpRequest.getCharacterEncoding(),payGateway);//securityCode(安全码)

}

/**

* 根据传入的参数生成alipay的支付URL

* @param hm 参数值

* @param securityCode 安全码

* @param charset 编码

* @param payGateway 支付宝gateway

* @return

*/

public static String makeUrl(HashMap hm,String securityCode,String charset,String payGateway) throws Exception{

List keys = new ArrayList(hm.keySet());

Collections.sort(keys);//支付宝要求参数必须按字母排序

StringBuffer content = new StringBuffer();

for (int i = 0; i < keys.size(); i++) {

content.append((String) keys.get(i));

content.append("=");

content.append((String) hm.get((String) keys.get(i)));

if (i != keys.size() - 1) {

content.append("&");

}

}

content.append(securityCode);

String sign = md5(content.toString(),charset);

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

content.append(payGateway);

for (int i = 0; i < keys.size(); i++) {

content.append(keys.get(i));

content.append("=");

content.append(URLEncoder.encode((String) hm.get(keys.get(i)), charset));

content.append("&");

}

content.append("sign=");

content.append(sign);

content.append("&sign_type=MD5");

keys.clear();

keys = null;

return content.toString();

}

/**

* 生成md5编码字符串.

* @param str 源字符串

* @param charset 编码方式

* @return

*

*/

public static String md5(String str,String charset) {

if (str == null)

return null;

char hexDigits[] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',

'a', 'b', 'c', 'd', 'e', 'f' };

MessageDigest md5MessageDigest = null;

byte[] md5Bytes = null;

char md5Chars[] = null;

byte[] strBytes = null;

try {

strBytes = str.getBytes(charset);

md5MessageDigest = MessageDigest.getInstance("MD5");

md5MessageDigest.update(strBytes);

md5Bytes = md5MessageDigest.digest();

int j = md5Bytes.length;

md5Chars = new char[j * 2];

int k = 0;

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

byte md5Byte = md5Bytes[i];

md5Chars[k++] = hexDigits[md5Byte >>> 4 & 0xf];

md5Chars[k++] = hexDigits[md5Byte & 0xf];

}

return new String(md5Chars);

} catch (NoSuchAlgorithmException e) {

//Log.output(e.toString(), Log.STD_ERR);

return null;

} catch (UnsupportedEncodingException e) {

//Log.output(e.toString(), Log.STD_ERR);

return null;

} finally {

md5MessageDigest = null;

strBytes = null;

md5Bytes = null;

}

}

当客户通过接口url付款后,支付宝会自动的去调用前面提供的[notify_url]参数中的url.

(2)支付宝将付款信息返回给系统

当客户付款后，支付宝就会自动调用上面表单提供的[notify_url]，下面是一个[notifyurl.jsp]的一个例子：

Html代码

String ret = AlipayMgr.insert(request);

if(ret==null){

out.print("success");//成功接收支付宝发来的付款信息

}else{

out.print("fail");//出错

}

%>

String ret = AlipayMgr.insert(request);

if(ret==null){

out.print("success");//成功接收支付宝发来的付款信息

}else{

out.print("fail");//出错

}

%>

如果确认收到支付宝发来的客户付款信息，则返回"success"，这样子支付宝就知道系统已经收到信息了；否则返回"fail"，这样支付宝会过一段时间后再次发来。其实，只有当支付宝收到"success"的返回信息后才会停止发送付款信息，否则会自动的每隔一段时间就调用上面

的[notify_url]通信接口。

(3)系统处理支付宝发来的付款信息

Java代码

/*

* Created on 2005-6-12

* Author stephen

* Email zhoujianqiang AT gmail DOT com

* CopyRight(C)2005-2008 , All rights reserved.

*/

package com.soft4j;

import java.sql.Connection;

import java.sql.SQLException;

import java.util.Enumeration;

import java.util.Vector;

import javax.servlet.http.HttpServletRequest;

/**

* 支付宝付款通知接口.

*

* @author stephen

* @version 1.0.0

*/

public final class NotifyUrlMgr {

public static String insert(HttpServletRequest httpRequest) {

//定义变量和进行必要的初始化工作

Enumeration parameterNames = null;

String parameterName = null;

String parameterValue = null;

int count = 0;

Vector[] params = null;

Vector vParameterName = new Vector();

Vector vParameterValue = new Vector();

try {

String orderId = httpRequest.getParameter("out_trade_no");//订单号

if(orderId==null||"".equals(orderId)) orderId="-1";

parameterNames = httpRequest.getParameterNames();

boolean isPrint = false;

while (parameterNames.hasMoreElements()) {//循环收取支付宝发来的所有参数信息

parameterName = (String) parameterNames.nextElement();

parameterValue = httpRequest.getParameter(parameterName);

if(parameterValue==null) parameterValue="";

vParameterName.add(parameterName);

vParameterValue.add(parameterValue);

count++;

}

//这里添加对收到信息的处理:一般是将这些信息存入数据库,然后对客户的订单进行处理.

return null;

} catch (Exception e) {

return e.toString();

} finally {

//

}

}

}

/*

* Created on 2005-6-12

* Author stephen

* Email zhoujianqiang AT gmail DOT com

* CopyRight(C)2005-2008 , All rights reserved.

*/

package com.soft4j;

import java.sql.Connection;

import java.sql.SQLException;

import java.util.Enumeration;

import java.util.Vector;

import javax.servlet.http.HttpServletRequest;

/**

* 支付宝付款通知接口.

*

* @author stephen

* @version 1.0.0

*/

public final class NotifyUrlMgr {

public static String insert(HttpServletRequest httpRequest) {

//定义变量和进行必要的初始化工作

Enumeration parameterNames = null;

String parameterName = null;

String parameterValue = null;

int count = 0;

Vector[] params = null;

Vector vParameterName = new Vector();

Vector vParameterValue = new Vector();

try {

String orderId = httpRequest.getParameter("out_trade_no");//订单号

if(orderId==null||"".equals(orderId)) orderId="-1";

parameterNames = httpRequest.getParameterNames();

boolean isPrint = false;

while (parameterNames.hasMoreElements()) {//循环收取支付宝发来的所有参数信息

parameterName = (String) parameterNames.nextElement();

parameterValue = httpRequest.getParameter(parameterName);

if(parameterValue==null) parameterValue="";

vParameterName.add(parameterName);

vParameterValue.add(parameterValue);

count++;

}

//这里添加对收到信息的处理:一般是将这些信息存入数据库,然后对客户的订单进行处理.

return null;

} catch (Exception e) {

return e.toString();

} finally {

//

}

}

}