Java实现⽀付宝当⾯付（扫码）详细步骤
小沈阳怒斥传闻当咱们申请签约好当⾯付功能之后怎么⽤Java代码调⽤该⽀付接⼝呢？我只创建了三个Java类。
controller commen qrcode
controller⽤来写调⽤⽀付接⼝的，commen⽤来写全局变量，例如APPID，URL这些。
qrcode是⽣成⼆维码的⼯具类，因为在当⾯付的官⽅说明⽂档⾥写着要开发者⽤⼯具转换返回的链接⽣成⼆维码，所以这⾥⽤到⼀个⽣成⼆维码的⼯具类。
看图：
commen
qrcode
周冬雨入围金像奖controller
@GetMapping("/alipay")
public void demo (HttpServletResponse response2) throws Exception {
AlipayClient alipayClient = new DefaultAlipayClient( Commen.URL , Commen.APPID , Commen.APP_PRIVATE_KEY , Commen.FORMAT, Commen.CHARS AlipayTradePrecreateRequest request = new AlipayTradePrecreateRequest (); //创建API对应的request类
request.setReturnUrl("www.baidu");
request . setBizContent ( "{" +
"\"out_trade_no\":\"20150320010101018\"," + //商户订单号
"\"total_amount\":\"0.01\"," +
"\"subject\":\"Iphone6 16G\"," +
"\"store_id\":\"NJ_001\"," +
"\"timeout_express\":\"90m\"}" ); //订单允许的最晚付款时间
AlipayTradePrecreateResponse response = null;
try {
response = ute (request);
} catch (AlipayApiException e) {
e.printStackTrace();
}
//根据response中的结果继续业务逻辑处
Map map = JsonToMapUtil.analysis(JSON.Body()));
Qrcode.produceQR(("qr_code")+"");
}
我在这⾥设置了回调通知地址是⽤的内⽹穿透的⼀个地址，实际上是我本地localhost，回调⽅法如下：
@PostMapping("/retrun")
public void callback(HttpServletRequest request,HttpServletResponse response) throws Exception {
InputStream inStream = InputStream();
BufferedReader in = null;
String result = "";
in = new BufferedReader(
new InputStreamReader(inStream));
String line;
while ((line = in.readLine()) != null) {
result += line;
}
Map<String,Object> map = new HashMap<>();
String[] split = result.split("&");
for (String s : split) {
装修房子的步骤流程
String[] spl = s.split("=");
String key = spl[0];
String value = URLDecoder.decode(spl[1], "UTF-8");// UTF-8解码
map.put(key,value);
}
// 打印success字节流传给⽀付宝服务器
System.out.println("================================= ⽀付成功 =================================");
Writer out= new BufferedWriter(new OutputStream()));
out.write("success"); //⼀定要打印success
out.flush();
out.close();
System.out.println("付款时间是"+("gmt_payment"));
System.out.println("⽀付宝交易订单号"+("trade_no"));
System.out.println("商户订单号"+("out_trade_no"));网上开店怎么开
System.out.println("订单⾦额"+("total_amount"));
钱枫 孙俪System.out.println("订单状态"+("trade_status"));
System.out.String());
}
入团介绍人意见范文回调的意思是⽤户扫码付款成功后，会有⼀个异步通知，是⽀付宝官⽅通知我们⽤户已经⽀付成功了，我们需要给⽀付宝⼀个回调的地址让
他有地⽅通知过来。然后我是写成了map，⼀个⼀个打印出来了。
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