Use Alipay to pay in java project (mobile terminal, web terminal) One, Spring boot project code
Controller
package com.hbq.teacher_plus.common.controller;
/**
* @author hbq
* @createTime 2020/3/19 23:29
*/
@Slf4j
@RestController
public class AlipayController {
/**
* 支付宝完成回调页面(不可信回调)
*/
@GetMapping("/return")
@ResponseBody
private String alipayReturn(HttpServletRequest request) {
Map<String, String[]> parameterMap = request.getParameterMap();
Map<String, String> handleParams = AlipayUtil.handleParams(parameterMap);
// 这里的校验没有多大的意思,不可信,直接获取out_trade_no跳转到对应的payed controller也可
boolean rsaCheck = AlipayUtil.rsaCheck(handleParams);
if (rsaCheck){
System.out.println("验证通过");
}else {
System.out.println("验证失败");
}
// 获取订单号
String out_trade_no = handleParams.get("out_trade_no");
System.out.println("out_trade_no:" + out_trade_no);
// 这里一般都是 重定向 payed的controller, 然后携带对应的信息如:return "redirect:/alipay/success?out_trade_no=" + out_trade_no;
// payed的controller根据out_trade_no获取支付结果,并且给出页面提示
return "支付完成";
}
/**
* 支付宝完成结果异步的回调(可信回调)
* @param request
*/
@PostMapping("/notify")
@ResponseBody
private String alipayNotify(HttpServletRequest request) {
Map<String, String[]> parameterMap = request.getParameterMap();
Map<String, String> handleParams = AlipayUtil.handleParams(parameterMap);
boolean rsaCheck = AlipayUtil.rsaCheck(handleParams);
if (rsaCheck){
System.out.println("验证通过");
// 处理业务逻辑,更改支付状态等骚操作
// ...
}else {
System.out.println("验证失败");
}
return rsaCheck ? "success" : "failure";
}
@RequestMapping("/pay/phone")
public String pay() {
AlipayVo alipayVo = new AlipayVo();
// String out_trade_no = UUID.randomUUID().toString().replace("-", "");
String out_trade_no = AlipayUtil.get().nextId() + "";
System.out.println("out_trade_no:" + out_trade_no);
// 设置订单单号,需要保证唯一性
alipayVo.setOut_trade_no(out_trade_no);
// 设置支付金额
alipayVo.setTotal_amount("0.01");
// 设置支付标题
alipayVo.setSubject("houyu-test-title");
// 设置订单有效时长(30分钟)
alipayVo.setTimeout_express("30m");
alipayVo.setProduct_code("QUICK_WAP_WAY");
// 对象转为json字符串
String json = JSONObject.toJSONString(alipayVo);
// 建立连接
AlipayClient client = new DefaultAlipayClient(AlipayConfig.URL, AlipayConfig.APPID, AlipayConfig.RSA_PRIVATE_KEY, AlipayConfig.FORMAT, AlipayConfig.CHARSET, AlipayConfig.ALIPAY_PUBLIC_KEY, AlipayConfig.SIGNTYPE);
// 创建请求
AlipayTradeWapPayRequest alipayTradeWapPayRequest = new AlipayTradeWapPayRequest();
// 设置异步通知地址
alipayTradeWapPayRequest.setNotifyUrl(AlipayConfig.notify_url);
// 设置对调地址,就是说支付成功之后回调你的页面,你可以继续进行你的业务操作,但是这个是不可信任的,需要根据notify_url这边的回调确定支付是否成功
alipayTradeWapPayRequest.setReturnUrl(AlipayConfig.return_url);
// 封装请求支付信息
alipayTradeWapPayRequest.setBizContent(json);
String pageString;
try {
pageString = client.pageExecute(alipayTradeWapPayRequest).getBody();
} catch (AlipayApiException e) {
pageString = "request aliapy has error";
e.printStackTrace();
}
return pageString;
}
@RequestMapping("/pay/web")
public void doPost (HttpServletRequest httpRequest, HttpServletResponse httpResponse) throws ServletException, IOException {
AlipayClient client = new DefaultAlipayClient(AlipayConfig.URL, AlipayConfig.APPID, AlipayConfig.RSA_PRIVATE_KEY, AlipayConfig.FORMAT, AlipayConfig.CHARSET, AlipayConfig.ALIPAY_PUBLIC_KEY, AlipayConfig.SIGNTYPE);
AlipayTradePagePayRequest alipayRequest = new AlipayTradePagePayRequest(); //创建API对应的request
alipayRequest.setReturnUrl( AlipayConfig.return_url );
alipayRequest.setNotifyUrl( AlipayConfig.notify_url ); //在公共参数中设置回跳和通知地址
AlipayVo alipayVo = new AlipayVo();
// String out_trade_no = UUID.randomUUID().toString().replace("-", "");
String out_trade_no = AlipayUtil.get().nextId() + "";
System.out.println("out_trade_no:" + out_trade_no);
// 设置订单单号,需要保证唯一性
alipayVo.setOut_trade_no(out_trade_no);
// 设置支付金额
alipayVo.setTotal_amount("0.01");
// 设置支付标题
alipayVo.setSubject("hbq-test-title");
// 设置订单有效时长(30分钟)
alipayVo.setTimeout_express("30m");
alipayVo.setProduct_code("FAST_INSTANT_TRADE_PAY");
//备注
alipayVo.setBody("Iphone6 16G");
alipayVo.setPassback_params("merchantBizType%3d3C%26merchantBizNo%3d2016010101111");
// 对象转为json字符串
String json = JSONObject.toJSONString(alipayVo);
alipayRequest.setBizContent(json); //填充业务参数*/
String form= "" ;
try {
form = client.pageExecute(alipayRequest).getBody(); //调用SDK生成表单
} catch (AlipayApiException e) {
e.printStackTrace();
}
httpResponse.setContentType( "text/html;charset=" + AlipayConfig.CHARSET);
httpResponse.getWriter().write(form); //直接将完整的表单html输出到页面
httpResponse.getWriter().flush();
httpResponse.getWriter().close();
}
}
model
package com.hbq.teacher_plus.common.model;
import lombok.Data;
import java.io.Serializable;
/**
* @author hbq
* @createTime 2020/3/19 23:29
*/
@Data
public class AlipayVo implements Serializable {
/**
* 订单名称
*/
private String subject;
/**
* 商户网站唯一订单号
*/
private String out_trade_no;
/**
* 该笔订单允许的最晚付款时间
*/
private String timeout_express;
/**
* 付款金额
*/
private String total_amount;
/**
* 销售产品码，与支付宝签约的产品码名称
*/
private String product_code;
/**
* 具体描述信息。如果是多种商品，请将商品描述字符串累加传给body。
* */
private String body;
/**
*
* */
private String passback_params;
private String extend_params;
// getter and setter ....
}
useful
package com.hbq.teacher_plus.util;
import com.alipay.api.AlipayApiException;
import com.alipay.api.internal.util.AlipaySignature;
import com.hbq.teacher_plus.config.AlipayConfig;
import java.lang.management.ManagementFactory;
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.util.HashMap;
import java.util.Map;
/**
* @author houyu
* @createTime 2019/3/20 8:38
*/
public class AlipayUtil {
/**
* 处理请求参数
* @param requestParams
* @return
*/
public static Map<String, String> handleParams(Map<String, String[]> requestParams){
Map<String, String> handleMap = new HashMap<>(requestParams.size());
for (Map.Entry<String, String[]> entry : requestParams.entrySet()) {
String key = entry.getKey();
String[] value = entry.getValue();
handleMap.put(key, join(value, ","));
}
return handleMap;
}
/**
* 数组转字符串 ["1", "2"] ==> "1,2"
* @param os
* @param splitString
* @return
*/
public static String join(Object[] os, String splitString){
String s = "";
if (os != null) {
StringBuilder sBuffer = new StringBuilder();
for (int i = 0; i < os.length; i++) {
sBuffer.append(os[i]).append(splitString);
}
s = sBuffer.deleteCharAt(sBuffer.length() - 1).toString();
}
return s;
}
/**
* 校验是否支付成功
* @param handleParams
* @return
*/
public static boolean rsaCheck(Map<String, String> handleParams) {
boolean checkV1 = false;
try {
checkV1 = AlipaySignature.rsaCheckV1(handleParams, AlipayConfig.ALIPAY_PUBLIC_KEY, AlipayConfig.CHARSET, AlipayConfig.SIGNTYPE);
} catch (AlipayApiException e) {
e.printStackTrace();
}
return checkV1;
}
/** ---------------------------------------单例模式---------------------------------------*/
private static class SingletonHolder {
private static final AlipayUtil INSTANCE = new AlipayUtil();
}
public static AlipayUtil get() {
return SingletonHolder.INSTANCE;
}
/** ---------------------------------------单例模式---------------------------------------*/
/** 雪花算法生成ID,自带时间排序,一秒可以生成25万个ID左右 */
// 时间起始标记点，作为基准，一般取系统的最近时间（一旦确定不能变动）
private final static long twepoch = 1288834974657L;
// 机器标识位数
private final static long workerIdBits = 5L;
// 数据中心标识位数
private final static long datacenterIdBits = 5L;
// 机器ID最大值
private final static long maxWorkerId = -1L ^ (-1L << workerIdBits);
// 数据中心ID最大值
private final static long maxDatacenterId = -1L ^ (-1L << datacenterIdBits);
// 毫秒内自增位
private final static long sequenceBits = 12L;
// 机器ID偏左移12位
private final static long workerIdShift = sequenceBits;
// 数据中心ID左移17位
private final static long datacenterIdShift = sequenceBits + workerIdBits;
// 时间毫秒左移22位
private final static long timestampLeftShift = sequenceBits + workerIdBits + datacenterIdBits;
private final static long sequenceMask = -1L ^ (-1L << sequenceBits);
/* 上次生产id时间戳 */
private static long lastTimestamp = -1L;
// 0，并发控制
private long sequence = 0L;
private final long workerId;
// 数据标识id部分
private final long datacenterId;
public AlipayUtil() {
this.datacenterId = getDatacenterId(maxDatacenterId);
this.workerId = getMaxWorkerId(datacenterId, maxWorkerId);
}
/**
* @param workerId 工作机器ID
* @param datacenterId 序列号
*/
public AlipayUtil(long workerId, long datacenterId) {
if (workerId > maxWorkerId || workerId < 0) {
throw new IllegalArgumentException(String.format("worker Id can't be greater than %d or less than 0", maxWorkerId));
}
if (datacenterId > maxDatacenterId || datacenterId < 0) {
throw new IllegalArgumentException(String.format("datacenter Id can't be greater than %d or less than 0", maxDatacenterId));
}
this.workerId = workerId;
this.datacenterId = datacenterId;
}
/**
* 获取下一个ID
*
* @return
*/
public synchronized long nextId() {
long timestamp = timeGen();
if (timestamp < lastTimestamp) {
throw new RuntimeException(String.format("Clock moved backwards. Refusing to generate id for %d milliseconds", lastTimestamp - timestamp));
}
if (lastTimestamp == timestamp) {
// 当前毫秒内，则+1
sequence = (sequence + 1) & sequenceMask;
if (sequence == 0) {
// 当前毫秒内计数满了，则等待下一秒
timestamp = tilNextMillis(lastTimestamp);
}
} else {
sequence = 0L;
}
lastTimestamp = timestamp;
// ID偏移组合生成最终的ID，并返回ID
long nextId = ((timestamp - twepoch) << timestampLeftShift)
| (datacenterId << datacenterIdShift)
| (workerId << workerIdShift) | sequence;
return nextId;
}
private long tilNextMillis(final long lastTimestamp) {
long timestamp = this.timeGen();
while (timestamp <= lastTimestamp) {
timestamp = this.timeGen();
}
return timestamp;
}
private long timeGen() {
return System.currentTimeMillis();
}
/**
* <p>
* 获取 maxWorkerId
* </p>
*/
protected static long getMaxWorkerId(long datacenterId, long maxWorkerId) {
StringBuffer mpid = new StringBuffer();
mpid.append(datacenterId);
String name = ManagementFactory.getRuntimeMXBean().getName();
if (!name.isEmpty()) {
/*
* GET jvmPid
*/
mpid.append(name.split("@")[0]);
}
/*
* MAC + PID 的 hashcode 获取16个低位
*/
return (mpid.toString().hashCode() & 0xffff) % (maxWorkerId + 1);
}
/**
* <p>
* 数据标识id部分
* </p>
*/
protected static long getDatacenterId(long maxDatacenterId) {
long id = 0L;
try {
InetAddress ip = InetAddress.getLocalHost();
NetworkInterface network = NetworkInterface.getByInetAddress(ip);
if (network == null) {
id = 1L;
} else {
byte[] mac = network.getHardwareAddress();
id = ((0x000000FF & (long) mac[mac.length - 1])
| (0x0000FF00 & (((long) mac[mac.length - 2]) << 8))) >> 6;
id = id % (maxDatacenterId + 1);
}
} catch (Exception e) {
System.out.println(" getDatacenterId: " + e.getMessage());
}
return id;
}
/** 雪花算法生成ID,自带时间排序,一秒可以生成25万个ID左右 */
}
config
package com.hbq.teacher_plus.config;
/**
* @author hbq
* @createTime 2020/3/19 23:29
*/
public class AlipayConfig {
// 商户appid
public static String APPID = "";
public static String RSA_PRIVATE_KEY = " ";
// 服务器异步通知页面路径 需http://或者https://格式的完整路径，不能加?id=123这类自定义参数，必须外网可以正常访问
public static String notify_url = "";
// 页面跳转同步通知页面路径 需http://或者https://格式的完整路径，不能加?id=123这类自定义参数，必须外网可以正常访问 商户可以自定义同步跳转地址
public static String return_url = "";
// 请求网关地址,沙箱是:https://openapi.alipaydev.com/gateway.do
public static String URL = "https://openapi.alipaydev.com/gateway.do";
// 编码
public static String CHARSET = "UTF-8";
// 返回格式
public static String FORMAT = "json";
// 支付宝公钥(在应用中可以获取)
public static String ALIPAY_PUBLIC_KEY = "";
// RSA2
public static String SIGNTYPE = "RSA2";
}
2. Alipay sandbox environment configuration 1. Because our parameters in the above config have not been configured yet, let's configure the parameters now.
2. Open the sandbox location of Alipay's official website: https://openhome.alipay.com/platform/appDaily.htm?tab=info 3. First, the positions of 3 and 4 need to be filled in a URL that can be accessed from the Internet, such as: http://www.baidu.com4. APPID, copy it to "1" as shown in the figure
5. RSA_PRIVATE_KEY, application private key
Download the public key private key generation tool Click directly to generate the secret key, copy the application public key below and return to the sandbox configuration, save, and copy the private key to the project configuration to the "2" position
6. ALIPAY_PUBLIC_KEY, Alipay public key
After saving the public key in step 5, you can see the Alipay public key:
7. Five configurations are completed, start the project and visit http://localhost:8080/pay/web.
8. Download the sandbox Alipay and log in with the sandbox account to complete the payment.