Java支付功能实现

Java支付功能实现

导入依赖

<dependency><groupId>com.alipay.sdk</groupId><artifactId>alipay-sdk-java</artifactId>
</dependency>
<dependency><groupId>cn.hutool</groupId><artifactId>hutool-all</artifactId><version>5.5.8</version>
</dependency>

生成qrCode

@PostMapping("/show")@ApiOperation(value = "添加支付订单", notes = "支付订单添加")public String qrCode(@RequestBody @Validated TradeDTO tradeDTO, BindingResult result) throws AlipayApiException{if (result.hasErrors()) {throw new BindingResultException(result);}AlipayClient alipayClient = new DefaultAlipayClient("https://openapi.alipay.com/gateway.do","2021003108655493","应用私钥","json","UTF-8","应用共钥","RSA2");AlipayTradePrecreateRequest request = new AlipayTradePrecreateRequest();request.setNotifyUrl("");JSONObject bizContent = new JSONObject();bizContent.put("out_trade_no", tradeDTO.getOutTradeNo());bizContent.put("total_amount", tradeDTO.getTotalAmount());bizContent.put("subject", tradeDTO.getSubject());request.setBizContent(bizContent.toString());AlipayTradePrecreateResponse response = alipayClient.execute(request);if(response.isSuccess()){return  response.getBody();} else {throw new BusinessException(ResultCode.ADD_ACCOUNT.getCode(), "二维码生成失败失败");}}

检查是否存在

下载支付宝开放平台开发助手

@GetMapping("/pay/{id}")@ApiOperation(value = "查询支付订单", notes = "支付订单查询")
public String PayCheck(String id) throws AlipayApiException {//获得初始化的AlipayClientAlipayClient alipayClient = new DefaultAlipayClient("https://openapi.alipay.com/gateway.do", "2021003108655493", "应用私钥", "json", "UTF-8", "支付宝共钥", "RSA2");//创建API对应的request类AlipayTradeQueryRequest request = new AlipayTradeQueryRequest();request.setBizContent("{" +"\"out_trade_no\":\""+id+"\"}");  //设置业务参数//通过alipayClient调用API，获得对应的response类AlipayTradeQueryResponse response = alipayClient.execute(request);return response.getBody();}

添加订单接口

@PostMapping("/add")@ApiOperation(value = "添加支付订单", notes = "支付订单添加")
public Result addTrade(Trade trade, BindingResult result) {if (result.hasErrors()) {throw new BindingResultException(result);}boolean save=tradeRepository.save(trade);if (save) {return Result.ok().message("支付订单添加");} else {throw new BusinessException(ResultCode.ORDER_ADD);}}

前端Vue

安装qrcodejs2

npm install qrcodejs2 --save

<el-button class="btn" type="text" @click="dialogVisible = true">立即支付</el-button>

<el-dialogtitle="支付":visible.sync="dialogVisible"width="30%"><div style="margin-left: 150px" id="code"></div><span slot="footer" class="dialog-footer"><el-button @click.once="getQRCode">生成二维码</el-button><el-button type="success" @click="testSuccess">检查成功</el-button></span></el-dialog>

import QRCode from 'qrcodejs2'
data() {return {successInfo: {},dialogVisible: false,TradeForm: {//订单编号outTradeNo: undefined,//价格totalAmount: undefined,//订单名称subject: undefined},payForm: {id: undefined,houseId: undefined,houseName: undefined,userId: undefined,userPhone: undefined,leaseTerm: undefined,price: undefined,touristId: undefined,touristName: undefined,touristPhone: undefined}}}

参考QRCode.js：使用 JavaScript 生成二维码 | 菜鸟教程 (runoob.com)

getQRCode() {let qr;this.TradeForm.outTradeNo = this.getProjectNum();console.log(this.TradeForm.outTradeNo)this.TradeForm.totalAmount = this.orderInfo();this.TradeForm.subject = this.describeInfo();qrCode(this.TradeForm).then(response => {this.page = response;qr = new QRCode("code", {text: this.page.alipay_trade_precreate_response.qr_code,width: 128,height: 128,colorDark: "#000000",colorLight: "#ffffff",correctLevel: QRCode.CorrectLevel.H});})},

检测成功

testSuccess() {console.log(this.TradeForm.outTradeNo)payCheck(this.TradeForm.outTradeNo).then(response => {this.successInfo = response;console.log(this.successInfo)if (this.successInfo.alipay_trade_query_response.code == 10000) {this.payForm.id = this.TradeForm.outTradeNo;this.payForm.houseId=this.oInfo().id;this.payForm.houseName=this.oInfo().address+this.oInfo().addressInfo;this.payForm.userId=this.oInfo().userId;this.payForm.userPhone=this.oInfo().phoneNumber;this.payForm.leaseTerm=this.oInfo().leaseTerm;this.payForm.price=this.oInfo().price;this.payForm.touristId=this.loginInfo().id;this.payForm.touristName=this.loginInfo().username;this.payForm.touristPhone=this.loginInfo().phone;addTrade(this.payForm).then(response => {if(response.code===200){clearOrder(this.payForm.touristId).then(response => {if(response.code===200) {leaseHouseInfo(this.payForm.houseId).then(response => {if(response.code===200) {this.$router.push({path:'/paysuccess'})}else {this.$notify({title: '警告',message: response.message,type: 'warning'});}})}else {this.$notify({title: '警告',message: response.message,type: 'warning'});}})}else {this.$notify({title: '警告',message: response.message,type: 'warning'});}})} else {this.$notify({title: '警告',message: '交易不存在，请重新交易',type: 'warning'});}})}

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