最近太忙了，天天加班，没有空打理博客，今天分享一下springboot做支付宝支付
首先用maven加载官方的包，公司这里有自己的maven仓库，使用Nexus搭建的，之后在分享Nexus搭建
公司有maven仓库的做法
<dependency>
<groupId>com.alipay.api</groupId>
<artifactId>alipay-sdk-java</artifactId>
<version>20170324180803</version>
</dependency>
如你没有maven仓库，那就直接加载jar包
<dependency>
<groupId>com.aliyun</groupId>
<artifactId>aliyun-sdk-java</artifactId>
<version>1.0.0</version>
<scope>system</scope>
<type>jar</type>
<systemPath>${pom.basedir}/libs/alipay-sdk-java20161213173952.jar</systemPath>
</dependency>
pom.xml同目录下新建一个libs文件夹，把支付宝的sdk放到这个文件夹里
我这里的支付宝支付是使用接口的方式，思路：
请求接口的时候，需要一个订单号参数和return_url地址（支付成之后跳转的链接），接口返回支付宝的支付的url地址
还需要一个接口执行接受支付宝的异步回调通知
支付宝配置文件
@ConfigurationProperties(prefix = "alipay")
@Data
@Component
public class AliPayConfig {
/**
* 应用ID,您的APPID，收款账号既是您的APPID对应支付宝账号
*/
private String appID;
/**
* 商户私钥，您的PKCS8格式RSA2私钥
*/
private String merchantPrivateKey;
/**
* 支付宝公钥
*/
private String alipayPublicKey;
/**
* 签名方式
*/
private String signType="RSA2";
/**
* 网关
*/
private String gatewayUrl="https://openapi.alipay.com/gateway.do";
/**
* 编码
*/
private String charset= "utf-8";
/**
* 异步通知地址
*/
private String notifyUrl="";
/**
* 类型
*/
private String format="json";
/**
* 商户号
*/
private String sysServiceProviderId="1234";
}
添加配置项目application.yml
alipay: appID: 2016091200494055 merchantPrivateKey: 商户私钥 alipayPublicKey: 支付宝公钥 gatewayUrl: https://openapi.alipaydev.com/gateway.do sysServiceProviderId: 1234 notifyUrl: http://XXXX.com
生成支付链接
@RequestMapping("/pay")
public class AliPayController {
@Autowired
AliPayConfig aliPayConfig;
@PostMapping("/alipayUrl")
public ResponseEntity doPost(@Valid @RequestBody AliPayFormVo aliPayFormVo) throws ServletException, IOException {
AlipayClient alipayClient = new DefaultAlipayClient(aliPayConfig.getGatewayUrl(), aliPayConfig.getAppID(), aliPayConfig.getMerchantPrivateKey(), aliPayConfig.getFormat(), aliPayConfig.getCharset(), aliPayConfig.getAlipayPublicKey(), aliPayConfig.getSignType()); //获得初始化的AlipayClient
AlipayTradePagePayRequest alipayRequest = new AlipayTradePagePayRequest();//创建API对应的request
alipayRequest.setReturnUrl(aliPayFormVo.getReturnUrl());
alipayRequest.setNotifyUrl(aliPayConfig.getNotifyUrl());//在公共参数中设置回跳和通知地址
String subject=productDTO.getPname();
alipayRequest.setBizContent("{" +
" \"out_trade_no\":\""+【商户订单号】+"\"," +
" \"product_code\":\"FAST_INSTANT_TRADE_PAY\"," +
" \"total_amount\":"+【支付金额】+"," +
" \"subject\":\""+【商品名称】+"\"," +
" \"body\":\""+【商品介绍】+"\"," +
" \"extend_params\":{" +
" \"sys_service_provider_id\":\""+aliPayConfig.getSysServiceProviderId()+"\"" +
" }"+
" }");//填充业务参数
String payUrl = "";
try {
#这里使用GET的方式，这样就能生成支付链接
payUrl = alipayClient.pageExecute(alipayRequest, "GET").getBody(); //调用SDK生成表单
} catch (AlipayApiException e) {
e.printStackTrace();
}
Map<String,String> map=new HashMap<>();
map.put("payUrl",payUrl);
return ResultUtil.success(map);
}
}
支付异步回调
/**
* 支付宝支付异步回调
*
* @param request
* @return
*/
@RequestMapping("/alipayNotify")
public void alipayNotify(HttpServletRequest request, HttpServletResponse response) {
System.err.println("支付宝进入异步通知");
String resultFail = "fail";
String resultSuccess = "success";
Map<String, String> params = new HashMap<String, String>();
Map requestParams = request.getParameterMap();
for (Iterator iter = requestParams.keySet().iterator(); iter.hasNext(); ) {
String name = (String) iter.next();
String[] values = (String[]) requestParams.get(name);
String valueStr = "";
for (int i = 0; i < values.length; i++) {
valueStr = (i == values.length - 1) ? valueStr + values[i] : valueStr + values[i] + ",";
}
//乱码解决，这段代码在出现乱码时使用。如果mysign和sign不相等也可以使用这段代码转化
/*try {
valueStr = new String(valueStr.getBytes("ISO-8859-1"), "GBK");
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}*/
params.put(name, valueStr);
}
log.info("params={}", params);
boolean signVerified = false; //调用SDK验证签名
try {
signVerified = AlipaySignature.rsaCheckV1(params, aliPayConfig.getAlipayPublicKey(), aliPayConfig.getCharset(), aliPayConfig.getSignType());
} catch (AlipayApiException e) {
log.error("【支付宝异步通知】支付宝回调通知失败 e={} params={}", e, params);
responseBody(response, resultFail);
return;
//e.printStackTrace();
}
if (!signVerified) {
log.error("【支付宝异步通知】验证签名错误 params={} ", params);
responseBody(response, resultFail);
return;
}
BigDecimal trade_price = new BigDecimal(request.getParameter("total_amount"));
//商户订单号
String out_trade_no = params.get("out_trade_no");
//支付宝交易号
String trade_no = params.get("trade_no");
//交易状态
String trade_status = params.get("trade_status");
// 支付成功修改订单状态
if (trade_status.equals("TRADE_FINISHED") || trade_status.equals("TRADE_SUCCESS")) {
//业务处理，主要是更新订单状态
}
log.error("【支付宝异步通知】支付宝状态错误 params={} ", params);
responseBody(response, resultFail);
return;
}
private void responseBody(HttpServletResponse response, String contentBody) {
try {
response.setContentType("type=text/html;charset=UTF-8");
String s = contentBody;
response.getWriter().write(s);
} catch (Exception e) {
e.printStackTrace();
}
return;
}
做这个功能遇到的坑，就是异步回调的时候编码有问题，支付宝demo里有解决编码的问题，加上去不能接口问题，后来不知道怎么就好了
