1.1 阅读官方介绍: 手机网站支付产品介绍
1.2 看完官方的介绍之后,可以做出如下总结:
通过接入此接口,能让商家接入支付宝的支付功能。具体支付流程如下:
(1)若用户已安装支付宝客户端,则在支付时会唤起支付宝客户端进行支付。
(2)若用户未安装支付宝客户端,则需要在网页中登录支付宝账号进行支付。
参考:java支付宝开发-01-沙箱环境接入 ,配置好沙箱环境,并下载好沙箱钱包
此文件主要存放支付宝的一些配置信息 ,大家需要 登录沙箱环境 ,找到相关配置参数,并据此修改配置文件。
package com.ray.alipaywap.config;
/**
* @author : shirayner
* @date : 2018/3/9
* @time : 9:36
* @desc : 支付宝的相关配置
**/
public class AlipayConfig {
//支付宝网关名-正式环境
//public static final String OPEN_API_DOMAIN="https://openapi.alipay.com/gateway.do";
//支付宝网关名-沙箱环境
public static final String OPEN_API_DOMAIN="https://openapi.alipaydev.com/gateway.do";
/** 一、应用相关
*
*/
/**
* 1.应用ID
*/
public static final String APP_ID="2016091100487746";
/**
* 2.应用私钥
*/
public static final String APP_PRIVATE_KEY="应用私钥";
/**
* 3.应用公钥
*/
public static final String APP_PUBLIC_KEY="应用公钥";
/**
* 4.支付宝公钥
*/
public static final String ALIPAY_PUBLIC_KEY="支付宝公钥";
/**
* 二、商家相关
*/
/**
* 1.app域名
* 需要改成自己应用的地址
*/
public static final String APP_DOMAIN = "http://rayge.nat300.top";
/**
* 2.回跳url
* 即付款之后跳回到此页面。注:沙箱环境下,有bug,不会跳到此页面。正式环境下正常。
*/
public static final String RETURN_URL = APP_DOMAIN + "/return_url.jsp";
/**
* 3.通知url
*/
public static final String NOTIFY_URL = APP_DOMAIN + "/notify_url.jsp";
/**
* 三、此部分不用修改
*/
/**
* 5.app_auth_token在ISV代替商家调用接口时使用,商家自己调用,可传null。
*/
public static final String APP_AUTH_TOKEN="";
public static final String SIGN_TYPE = "RSA2";
public static final String CHAR_SET = "UTF-8";
public static final String FORMAT = "json";
}
package com.ray.alipaywap.service;
import com.alipay.api.response.AlipayTradeWapPayResponse;
/**
* @author : shirayner
* @date : 2018/3/12
* @time : 10:48
* @desc :
**/
public interface WapPayService {
public AlipayTradeWapPayResponse pay(String content) throws Exception;
}
package com.ray.alipaywap.service.impl;
import com.alipay.api.AlipayApiException;
import com.alipay.api.AlipayClient;
import com.alipay.api.DefaultAlipayClient;
import com.alipay.api.request.AlipayTradeWapPayRequest;
import com.alipay.api.response.AlipayTradeWapPayResponse;
import com.ray.alipaywap.config.AlipayConfig;
import com.ray.alipaywap.service.WapPayService;
/**
* @author : shirayner
* @date : 2018/3/12
* @time : 11:02
* @desc :
**/
public class WapPayServiceImpl implements WapPayService{
// 初始化alipayClient对象
public static AlipayClient alipayClient = new DefaultAlipayClient(
AlipayConfig.OPEN_API_DOMAIN, AlipayConfig.APP_ID, AlipayConfig.APP_PRIVATE_KEY, AlipayConfig.FORMAT,
AlipayConfig.CHAR_SET, AlipayConfig.ALIPAY_PUBLIC_KEY);
/**
* 手机网站支付
* @param content 订单信息
* @return
* @throws AlipayApiException
*/
@Override
public AlipayTradeWapPayResponse pay(String content) throws AlipayApiException {
//1. 创建API对应的request
AlipayTradeWapPayRequest alipayRequest = new AlipayTradeWapPayRequest();
//2. 在公共参数中设置回跳和通知地址(应用提供给支付宝的请求路径),沙箱模式中不起作用(不知道是不是这个原因,支付宝技术客服告诉我正式上线后就没问题)
alipayRequest.setReturnUrl(AlipayConfig.APP_DOMAIN+"/index.jsp");
alipayRequest.setNotifyUrl(AlipayConfig.NOTIFY_URL);
// 填充业务参数
alipayRequest.setBizContent(content);
//3.执行请求
AlipayTradeWapPayResponse alipayResponse = alipayClient
.pageExecute(alipayRequest);
return alipayResponse;
}
}
接收前台订单信息,并调用支付宝接口,来唤起支付宝app来进行支付。
package com.ray.alipaywap.controller;
import com.alipay.api.response.AlipayTradeWapPayResponse;
import com.ray.alipaywap.config.AlipayConfig;
import com.ray.alipaywap.service.WapPayService;
import com.ray.alipaywap.service.impl.WapPayServiceImpl;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
public class WapPayServlet extends javax.servlet.http.HttpServlet {
private WapPayService wapPayService;
@Override
public void init() throws ServletException {
super.init();
wapPayService = new WapPayServiceImpl();
}
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse resp) throws ServletException, IOException {
//1.设置将发送到客户端的响应的内容类型
resp.setContentType("text/html;charset="+ AlipayConfig.CHAR_SET);
//1.1
String subject = request.getParameter("subject");
String total_amount = request.getParameter("total_amount");
String out_trade_no = String.valueOf(System.currentTimeMillis());
//1.2
//2.填充业务参数
String content="{" +
" \"out_trade_no\":\""+out_trade_no+"\"," +
" \"total_amount\":\""+total_amount+"\"," +
" \"subject\":\""+subject+"\"," +
" \"product_code\":\"QUICK_WAP_PAY\"" +
" }";
//3.去支付
AlipayTradeWapPayResponse alipayResponse= null;
try {
alipayResponse = wapPayService.pay(content);
} catch (Exception e) {
e.printStackTrace();
}
String form= alipayResponse.getBody();
System.out.println(form);
//4.输出支付宝返回的表单页面
resp.setContentType("text/html;charset=" + AlipayConfig.CHAR_SET);
resp.getWriter().write(form);//直接将完整的表单html输出到页面
resp.getWriter().flush();
resp.getWriter().close();
}
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
}
}
index.jsp
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
</head>
<body>
<h2>订单详情</h2>
</body>
<form action="/wapPayServlet" method="post" >
商品: <input id="subject" type="text" name="subject" value="IphoneX 128G"/> <br><br>
总价: <input id="total_amount" type="text" name="total_amount" value="99.88"/> <br><br>
<input type="submit" value="提交订单" /> <br><br>
</form>
</html>
<!DOCTYPE web-app PUBLIC
"-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd" >
<web-app>
<display-name>Archetype Created Web Application</display-name>
<servlet>
<servlet-name>wapPayServlet</servlet-name>
<servlet-class>com.ray.alipaywap.controller.WapPayServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>wapPayServlet</servlet-name>
<url-pattern>/wapPayServlet</url-pattern>
</servlet-mapping>
</web-app>