基于springboot 支付宝app端支付，可用于uni-app使用

基于springboot 支付宝app端支付，可用于uni-app使用
1、添加maven依赖：

<dependency><groupId>com.alibaba</groupId><artifactId>fastjson</artifactId>
</dependency>
<dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId>
</dependency><dependency><groupId>io.springfox</groupId><artifactId>springfox-swagger2</artifactId></dependency>

2、创建支付实体类：

@Data
@Builder
@NoArgsConstructor
@AllArgsConstructor
@ApiModel("支付宝支付实体类")
@Accessors(chain = true)
@Url("https://openapi.alipay.com/gateway.do")
public class PayEntity implements Serializable {@JSONField(name = "out_trade_no")@ApiModelProperty(name = "out_trade_no"   , required = true  , value = "商户网站唯一订单号")private String outTradeNo ;@JSONField(name = "total_amount")@ApiModelProperty(name = "total_amount"   , required = true  , value = "订单总金额。单位为元，精确到小数点后两位，取值范围：[0.01,100000000] ")private String totalAmount ;@JSONField(name = "subject")@ApiModelProperty(name = "subject"        , required = true  , value = "订单标题。注意：不可使用特殊字符，如 /，=，& 等。")private String subject ;@JSONField(name = "product_code")@ApiModelProperty(name = "product_code"   , required = true  , value = "销售产品码，商家和支付宝签约的产品码。手机网站支付为：QUICK_WAP_WAY")private String productCode ;@JSONField(name = "auth_token")@ApiModelProperty(name = "auth_token"                        , value = "针对用户授权接口，获取用户相关数据时，用于标识用户授权关系")private String authToken ;@JSONField(name = "quit_url")@ApiModelProperty(name = "quit_url"                          , value = "用户付款中途退出返回商户网站的地址")private String quitUrl ;@JSONField(name = "time_expire")@ApiModelProperty(name = "time_expire"                       , value = "绝对超时时间，格式为yyyy-MM-dd HH:mm:ss")private String timeExpire ;@JSONField(name = "business_params")@ApiModelProperty(name = "business_params"                   , value = "商户传入业务信息，具体值要和支付宝约定，应用于安全，营销等参数直传场景，格式为json格式")private String businessParams ;@JSONField(name = "passback_params")@ApiModelProperty(name = "passback_params"                   , value = "公用回传参数，如果请求时传递了该参数，则返回给商户时会回传该参数。支付宝只会在同步返回（包括跳转回商户网站）和异步通知时将该参数原样返回。本参数必须进行UrlEncode之后才可以发送给支付宝。")private String passbackParams ;@JSONField(name = "merchant_order_no")@ApiModelProperty(name = "merchant_order_no"                 , value = "商户原始订单号，最大长度限制32位")private String merchantOrderNo ;@JSONField(name = "goods_detail")@ApiModelProperty(name = "goods_detail"                      , value = "订单包含的商品列表信息，json格式，其它说明详见商品明细说明")private GoodsDetail goodsDetail ;@JSONField(name = "extend_params")@ApiModelProperty(name = "extend_params"                    , value = "业务扩展参数")private ExtendParams extendParams ;@Data@Builder@NoArgsConstructor@AllArgsConstructorpublic static class GoodsDetail implements Serializable{@JSONField(name = "goods_id")@ApiModelProperty(name = "goods_id"      , required = true   , value = "商品的编号")private String goodsId ;@JSONField(name = "alipay_goods_id")@ApiModelProperty(name = "alipay_goods_id"                   , value = "支付宝定义的统一商品编号")private String alipayGoodsId ;@JSONField(name = "goods_name")@ApiModelProperty(name = "goods_name"                        , value = "商品名称")private String goodsName ;@JSONField(name = "quantity")@ApiModelProperty(name = "quantity"                          , value = "商品数量")private Integer quantity ;@JSONField(name = "price")@ApiModelProperty(name = "price"                             , value = "商品单价，单位为元")private String price ;@JSONField(name = "goods_category")@ApiModelProperty(name = "goods_category"                    , value = "商品类目")private String goodsCategory ;@JSONField(name = "categories_tree")@ApiModelProperty(name = "categories_tree"                   , value = "商品类目树，从商品类目根节点到叶子节点的类目id组成，类目id值使用|分割")private String categoriesTree ;@JSONField(name = "body")@ApiModelProperty(name = "body"                              , value = "商品描述信息")private String body ;@JSONField(name = "show_url")@ApiModelProperty(name = "show_url"                          , value = "商品的展示地址")private String showUrl ;}@Data@Builder@NoArgsConstructor@AllArgsConstructorpublic static class ExtendParams implements Serializable{@JSONField(name = "sys_service_provider_id")@ApiModelProperty(name = "sys_service_provider_id"           , value = "系统商编号该参数作为系统商返佣数据提取的依据，请填写系统商签约协议的PID")private String sysServiceProviderId ;@JSONField(name = "hb_fq_num")@ApiModelProperty(name = "hb_fq_num"                         , value = "使用花呗分期要进行的分期数")private String hbFqNum ;@JSONField(name = "hb_fq_seller_percent")@ApiModelProperty(name = "hb_fq_seller_percent"              , value = "使用花呗分期需要卖家承担的手续费比例的百分值，传入100代表100%")private String hbFqSellerPercent ;@JSONField(name = "industry_reflux_info")@ApiModelProperty(name = "industry_reflux_info"              , value = "行业数据回流信息, 详见：地铁支付接口参数补充说明")private String industryRefluxInfo ;@JSONField(name = "card_type")@ApiModelProperty(name = "card_type"                         , value = "卡类型")private String cardType ;@JSONField(name = "specified_seller_name")@ApiModelProperty(name = "specified_seller_name"             , value = "特殊场景下，允许商户指定交易展示的卖家名称")private String specifiedSellerName ;}}

3、支付util类：

@Slf4j
public class PayUtils {private AlibabaProperties alibabaProperties;public static PayUtils newInstance(AlibabaProperties alibabaProperties){PayUtils payUtils = new PayUtils();payUtils.alibabaProperties = alibabaProperties;return payUtils ;}public String  pay(PayEntity payEntity) throws Exception{AlipayConfig alipayConfig = new AlipayConfig();alipayConfig.setServerUrl(payEntity.getClass().getAnnotation(Url.class).value());alipayConfig.setAppId(alibabaProperties.getAppId());alipayConfig.setPrivateKey(alibabaProperties.getPrivateKey());if(ProjectStatus.windows操作系统.getValue().equals(alibabaProperties.getEnvironment())){try{alipayConfig.setAppCertPath(ClassLoader.getSystemResource(alibabaProperties.getAppCertPath()).getPath());alipayConfig.setAlipayPublicCertPath(ClassLoader.getSystemResource(alibabaProperties.getPublicCertPath()).getPath());alipayConfig.setRootCertPath(ClassLoader.getSystemResource(alibabaProperties.getRootCertPath()).getPath());}catch (Exception e){log.error("秘钥位置不正确:{}" , e.getMessage());throw BaseException.throwExNotLog(e.getMessage());}}else{alipayConfig.setAppCertPath(alibabaProperties.getAppCertPath());alipayConfig.setAlipayPublicCertPath(alibabaProperties.getPublicCertPath());alipayConfig.setRootCertPath(alibabaProperties.getRootCertPath());}alipayConfig.setFormat(alibabaProperties.getFormat());alipayConfig.setCharset(alibabaProperties.getCharset());alipayConfig.setSignType(alibabaProperties.getSignType());AlipayTradeAppPayRequest request = new AlipayTradeAppPayRequest();request.setNotifyUrl(alibabaProperties.getNotifyUrl());request.setBizContent(JSONObject.toJSONString(payEntity.setProductCode(alibabaProperties.getProductCode())));try{AlipayTradeAppPayResponse response = new DefaultAlipayClient(alipayConfig).sdkExecute(request);if(response.isSuccess()) return response.getBody();throw BaseException.throwEx(JSONObject.toJSONString(response));}catch (Exception e){log.error("支付宝支付失败:{}" , e.getMessage());throw BaseException.throwEx(e.getMessage());}}public Boolean sign(Map<String , String> params) throws Exception{if(ProjectStatus.linux操作系统.getValue().equals(alibabaProperties.getEnvironment())) return AlipaySignature.rsaCertCheckV1(params , alibabaProperties.getPublicCertPath() , alibabaProperties.getCharset() , alibabaProperties.getSignType());return AlipaySignature.rsaCertCheckV1(params , ClassLoader.getSystemResource(alibabaProperties.getPublicCertPath()).getPath() , alibabaProperties.getCharset() , alibabaProperties.getSignType());}}

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