微信支付4步骤搞定

项目需要搞微信支付，百度了那么多但是太复杂了，还有腾讯的那些个文档真是ＲＬＧＬ

下面直接上步骤：

第一步：加入第三方jar包：

<dependency>    <groupId>cn.springboot</groupId>    <artifactId>best-pay-sdk</artifactId>    <version>1.1.0</version></dependency>

第二步：在项目根路径下创建配置文件weixinpay.properties，当然你写死在代码里也可以。（这步就可以省略）

# 公众账号IDweixin.mpAppId=#商户号weixin.mchId=#商户密钥weixin.mchKey=商户证书路径weixin.keyPath=#微信支付异步通知地址weixin.notifyUrl=

第三步：创建微信支付配置文件类

package com.github.lly835.config;import com.lly835.bestpay.config.WxPayH5Config;import com.lly835.bestpay.service.impl.BestPayServiceImpl;import org.springframework.context.annotation.Bean;import org.springframework.stereotype.Component;

import java.util.ResourceBundle;

/** * 微信支付配置文件 */@Componentpublic class PayConfig {    @Bean    public WxPayH5Config wxPayH5Config() {        WxPayH5Config wxPayH5Config = new WxPayH5Config();        ResourceBundle resource = ResourceBundle.getBundle("weixinpay");//不要加.properties后缀，我加了报错

        wxPayH5Config.setAppId(resource.getString("weixin.mpAppId")); //这里的参数你如果写死，第二步可以省略        wxPayH5Config.setMchId(resource.getString("weixin.mchId"));        wxPayH5Config.setMchKey(resource.getString("weixin.mchKey"));        wxPayH5Config.setKeyPath(resource.getString("weixin.keyPath"));        wxPayH5Config.setNotifyUrl(resource.getString("weixin.notifyUrl"));        return wxPayH5Config;    }    @Bean    public BestPayServiceImpl bestPayService(WxPayH5Config wxPayH5Config) {        BestPayServiceImpl bestPayService = new BestPayServiceImpl();        bestPayService.setWxPayH5Config(wxPayH5Config);        return bestPayService;    }}

第四步：微信支付调用

/** * 微信支付 */@Controller@Slf4jpublic class PayController {

final static Logger log = LoggerFactory.getLogger(PayController.class);

@Autowired    private BestPayServiceImpl bestPayService;

/**     * 发起微信支付     * @param openid 用户唯一标识     * @param orderAmount  订单金额     * @param orderName 订单描述     * @param orderId 订单编号     * @param map     * @return     */    @GetMapping(value = "/pay")    public ModelAndView pay(@RequestParam("openid") String openid,Double orderAmount,String orderName,String orderId,                            Map<String, Object> map) {        PayRequest request = new PayRequest();

//支付请求参数        request.setPayTypeEnum(BestPayTypeEnum.WXPAY_H5);        request.setOrderId(orderId);        request.setOrderAmount(orderAmount);        request.setOrderName(orderName);        request.setOpenid(openid);        log.info("【发起支付】request={}", JsonUtil.toJson(request));

PayResponse payResponse = bestPayService.pay(request);        log.info("【发起支付】response={}", JsonUtil.toJson(payResponse));

map.put("payResponse", payResponse);

return new ModelAndView("weixin/create", map);    }

/**     * 异步回调     * @param notifyData <return_code><![CDATA[SUCCESS]]></return_code><return_msg><![CDATA[OK]]></return_msg>     * @return     * @throws Exception     */    @PostMapping(value = "/notify")    public ModelAndView notify(@RequestBody String notifyData) throws Exception {        log.info("【异步回调】request={}", notifyData);        PayResponse response = bestPayService.asyncNotify(notifyData);        log.info("【异步回调】response={}", JsonUtil.toJson(response));        return new ModelAndView("weixin/success");    }}

前端代码：create.ftl代码

<script>    function onBridgeReady(){        WeixinJSBridge.invoke(                ‘getBrandWCPayRequest‘, {                    "appId":"${payResponse.appId}",     //公众号名称，由商户传入                    "timeStamp":"${payResponse.timeStamp}",         //时间戳，自1970年以来的秒数                    "nonceStr":"${payResponse.nonceStr}", //随机串                    "package":"${payResponse.packAge}",                    "signType":"MD5",         //微信签名方式：                    "paySign":"${payResponse.paySign}" //微信签名                },                function(res){                    if(res.err_msg == "get_brand_wcpay_request:ok" ) {                        alert(‘支付成功‘);                    }else if(res.err_msg == "get_brand_wcpay_request:cancel") {                        alert(‘支付过程中用户取消‘);                    }else if(res.err_msg == "get_brand_wcpay_request:fail") {                        alert(‘支付失败‘);                    }else {                        alert(‘未知异常‘);                    }                }        );    }    if (typeof WeixinJSBridge == "undefined"){        if( document.addEventListener ){            document.addEventListener(‘WeixinJSBridgeReady‘, onBridgeReady, false);        }else if (document.attachEvent){            document.attachEvent(‘WeixinJSBridgeReady‘, onBridgeReady);            document.attachEvent(‘onWeixinJSBridgeReady‘, onBridgeReady);        }    }else{        onBridgeReady();    }</script>

success.ftl代码

<xml>    <return_code><![CDATA[SUCCESS]]></return_code>    <return_msg><![CDATA[OK]]></return_msg></xml>

整个项目结构图：

原文地址：https://www.cnblogs.com/zeussbook/p/10239885.html