微信支付最新版 java 实现
实现微信支付 Native 扫码支付
支付场景在 微信支付文档
步骤：
1 生成二维码链接地址
String payNativeUrl = PayUtils.generateMchPayNativeRequestURL(productId);
然后可以通过jqueyQrcode的插件，在页面上生成二维码
2 扫码二维码后微信发送的请求处理
封装输入信息
PayNativeInput payNativeInput = PayUtils.convertRequest(request.getInputStream());
验证合法性
boolean validate = PayUtils.validateAppSignature(payNativeInput);
if(!validate){
return null;
}
封装商品信息
PayPackage payPackage = new PayPackage();
payPackage.setAppid(payNativeInput.getAppid());
payPackage.setAttach("test");
payPackage.setBody("product");
payPackage.setNonce_str(payNativeInput.getNonce_str());
payPackage.setMch_id(payNativeInput.getMch_id());
payPackage.setOpenid(payNativeInput.getOpenid());
payPackage.setOut_trade_no(UUID.randomUUID().toString().replace("-", ""));
payPackage.setProduct_id(payNativeInput.getProduct_id());
payPackage.setSpbill_create_ip("127.0.0.1");
payPackage.setTotal_fee("1");
payPackage.setTrade_type("NATIVE");
发送统一下单请求
String replyXml = PayUtils.generatePayNativeReplyXML(payPackage);
3 支付成功回调
PayCallbackNotify payCallbackNotify = PayUtils.payCallbackNotify(request.getInputStream());
if(payCallbackNotify.isPaySuccess()){
String content = PayUtils.generatePaySuccessReplyXML();
return content;
}
系统依赖jar包
compile 'com.fasterxml.jackson.dataformat:jackson-dataformat-xml:2.4.0'
compile 'org.apache.httpcomponents:httpclient:4.4'
compile 'log4j:log4j:1.2.17'
compile 'commons-io:commons-io:2.3'
compile 'commons-beanutils:commons-beanutils:1.9.2'