概述
1.准备工作
1.1 数据库表
这里涉及微信支付一共两个表：
订单表
支付记录表
1.2 实体类
数据库对应的实体类：
订单表
@Data
@ToString
@EqualsAndHashCode(callSuper = false)
@Accessors(chain = true)
@TableName("t_order")
@ApiModel(value = "Order对象", description = "订单")
public class Order implements Serializable {
private static final long serialVersionUID = 1L;
@TableId(value = "id", type = IdType.ID_WORKER_STR)
private String id;
@ApiModelProperty(value = "订单号")
private String orderNo;
@ApiModelProperty(value = "课程id")
private String courseId;
@ApiModelProperty(value = "课程名称")
private String courseTitle;
@ApiModelProperty(value = "课程封面")
private String courseCover;
@ApiModelProperty(value = "讲师名称")
private String teacherName;
@ApiModelProperty(value = "会员id")
private String memberId;
@ApiModelProperty(value = "会员昵称")
private String nickname;
@ApiModelProperty(value = "会员手机")
private String mobile;
@ApiModelProperty(value = "订单金额（分）")
private BigDecimal totalFee;
@ApiModelProperty(value = "支付类型（1：微信 2：支付宝）")
private Integer payType;
@ApiModelProperty(value = "订单状态（0：未支付 1：已支付）")
private Integer status;
@ApiModelProperty(value = "逻辑删除 1（true）已删除， 0（false）未删除")
private Boolean isDeleted;
@ApiModelProperty(value = "创建时间")
@TableField(fill = FieldFill.INSERT)
private Date gmtCreate;
@ApiModelProperty(value = "更新时间")
@TableField(fill = FieldFill.INSERT_UPDATE)
private Date gmtModified;
}
支付日志表
@Data
@EqualsAndHashCode(callSuper = false)
@Accessors(chain = true)
@TableName("t_pay_log")
@ApiModel(value = "PayLog对象", description = "支付日志表")
public class PayLog implements Serializable {
private static final long serialVersionUID = 1L;
@TableId(value = "id", type = IdType.ID_WORKER_STR)
private String id;
@ApiModelProperty(value = "订单号")
private String orderNo;
@ApiModelProperty(value = "支付完成时间")
private Date payTime;
@ApiModelProperty(value = "支付金额（分）")
private BigDecimal totalFee;
@ApiModelProperty(value = "交易流水号")
private String transactionId;
@ApiModelProperty(value = "交易状态")
private String tradeState;
@ApiModelProperty(value = "支付类型（1：微信 2：支付宝）")
private Integer payType;
@ApiModelProperty(value = "其他属性")
private String attr;
@ApiModelProperty(value = "逻辑删除 1（true）已删除， 0（false）未删除")
private Boolean isDeleted;
@ApiModelProperty(value = "创建时间")
@TableField(fill = FieldFill.INSERT)
private Date gmtCreate;
@ApiModelProperty(value = "更新时间")
@TableField(fill = FieldFill.INSERT_UPDATE)
private Date gmtModified;
}
1.3 导入依赖
在订单模块service_order导入微信支付需要的依赖：
<dependencies>
<dependency>
<groupId>com.github.wxpay</groupId>
<artifactId>wxpay-sdk</artifactId>
<version>0.0.3</version>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
</dependency>
</dependencies>
1.4 配置文件
在配置文件application.properties配置相关的信息：
# 服务端口 server.port=8007 # 服务名 spring.application.name=service-order # mysql数据库连接 spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver spring.datasource.url=jdbc:mysql://localhost:3306/guli?serverTimezone=GMT%2B8 spring.datasource.username=root spring.datasource.password=root #返回json的全局时间格式 spring.jackson.date-format=yyyy-MM-dd HH:mm:ss spring.jackson.time-zone=GMT+8 #配置mapper xml文件的路径 mybatis-plus.mapper-locations=classpath:com/atguigu/eduorder/mapper/xml/*.xml #mybatis日志 mybatis-plus.configuration.log-impl=org.apache.ibatis.logging.stdout.StdOutImpl # nacos服务地址 spring.cloud.nacos.discovery.server-addr=127.0.0.1:8848 #开启熔断机制 #feign.hystrix.enabled=true # 设置hystrix超时时间，默认1000ms #hystrix.command.default.execution.isolation.thread.timeoutInMilliseconds=3000 #关联的公众号appid wx.pay.app_id=wx74862e0dfc69954 #商户号 wx.pay.partner=155895011 #商户key wx.pay.partnerkey=T6m9iK73b0kn9g5v426MKHQH7X8rKwb #回调地址 wx.pay.notifyurl=http://guli.shop/api/order/weixinPay/weixinNotify #微信提供的固定地址 wx.pay.wxurl=https://api.mch.weixin.qq.com/pay/unifiedorder #微信查询状态地址 wx.pay.queryUrl=https://api.mch.weixin.qq.com/pay/orderquery
1.5 创建读取微信支付相关信息的工具类
创建一个读取微信支付需要的信息的工具类ConstantWxPayUtils：
@Controller
public class ConstantWxPayUtils implements InitializingBean {
@Value("${wx.pay.app_id}")
private String appID;
@Value("${wx.pay.partner}")
private String partner;
@Value("${wx.pay.partnerkey}")
private String partnerKey;
@Value("${wx.pay.notifyurl}")
private String notifyUrl;
@Value("${wx.pay.wxurl}")
private String wxUrl;
@Value("${wx.pay.queryUrl}")
private String queryUrl;
//定义公共静态常量
public static String WX_PAY_APP_ID;
public static String WX_PAY_PARTNER;
public static String WX_PAY_PARTNER_KEY;
public static String WX_PAY_NOTIFY_URL;
public static String WX_PAY_WX_URL;
public static String WX_PAY_QUERY_URL;
@Override
public void afterPropertiesSet() throws Exception {
WX_PAY_APP_ID = appID;
WX_PAY_PARTNER = partner;
WX_PAY_PARTNER_KEY = partnerKey;
WX_PAY_NOTIFY_URL = notifyUrl;
WX_PAY_WX_URL = wxUrl;
WX_PAY_QUERY_URL=queryUrl;
}
}
1.6 其他工具类
用于随机生成订单号的工具类OrderNoUtil：
public class OrderNoUtil {
/**
* 获取订单号
* @return
*/
public static String getOrderNo() {
SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddHHmmss");
String newDate = sdf.format(new Date());
String result = "";
Random random = new Random();
for (int i = 0; i < 3; i++) {
result += random.nextInt(10);
}
return newDate + result;
}
}
HttpClient工具类：
/**
* http请求客户端
*
* @author xppll
*
*/
public class HttpClient {
private String url;
private Map<String, String> param;
private int statusCode;
private String content;
private String xmlParam;
private boolean isHttps;
public boolean isHttps() {
return isHttps;
}
public void setHttps(boolean isHttps) {
this.isHttps = isHttps;
}
public String getXmlParam() {
return xmlParam;
}
public void setXmlParam(String xmlParam) {
this.xmlParam = xmlParam;
}
public HttpClient(String url, Map<String, String> param) {
this.url = url;
this.param = param;
}
public HttpClient(String url) {
this.url = url;
}
public void setParameter(Map<String, String> map) {
param = map;
}
public void addParameter(String key, String value) {
if (param == null)
param = new HashMap<String, String>();
param.put(key, value);
}
public void post() throws ClientProtocolException, IOException {
HttpPost http = new HttpPost(url);
setEntity(http);
execute(http);
}
public void put() throws ClientProtocolException, IOException {
HttpPut http = new HttpPut(url);
setEntity(http);
execute(http);
}
public void get() throws ClientProtocolException, IOException {
if (param != null) {
StringBuilder url = new StringBuilder(this.url);
boolean isFirst = true;
for (String key : param.keySet()) {
if (isFirst)
url.append("?");
else
url.append("&");
url.append(key).append("=").append(param.get(key));
}
this.url = url.toString();
}
HttpGet http = new HttpGet(url);
execute(http);
}
/**
* set http post,put param
*/
private void setEntity(HttpEntityEnclosingRequestBase http) {
if (param != null) {
List<NameValuePair> nvps = new LinkedList<NameValuePair>();
for (String key : param.keySet())
nvps.add(new BasicNameValuePair(key, param.get(key))); // 参数
http.setEntity(new UrlEncodedFormEntity(nvps, Consts.UTF_8)); // 设置参数
}
if (xmlParam != null) {
http.setEntity(new StringEntity(xmlParam, Consts.UTF_8));
}
}
private void execute(HttpUriRequest http) throws ClientProtocolException,
IOException {
CloseableHttpClient httpClient = null;
try {
if (isHttps) {
SSLContext sslContext = new SSLContextBuilder()
.loadTrustMaterial(null, new TrustStrategy() {
// 信任所有
public boolean isTrusted(X509Certificate[] chain,
String authType)
throws CertificateException {
return true;
}
}).build();
SSLConnectionSocketFactory sslsf = new SSLConnectionSocketFactory(
sslContext);
httpClient = HttpClients.custom().setSSLSocketFactory(sslsf)
.build();
} else {
httpClient = HttpClients.createDefault();
}
CloseableHttpResponse response = httpClient.execute(http);
try {
if (response != null) {
if (response.getStatusLine() != null)
statusCode = response.getStatusLine().getStatusCode();
HttpEntity entity = response.getEntity();
// 响应内容
content = EntityUtils.toString(entity, Consts.UTF_8);
}
} finally {
response.close();
}
} catch (Exception e) {
e.printStackTrace();
} finally {
httpClient.close();
}
}
public int getStatusCode() {
return statusCode;
}
public String getContent() throws ParseException, IOException {
return content;
}
}
2.生成订单
这里一共涉及service_order订单模块、service_ucenter用户模块、service-edu课程模块。
service_order使用Fegin远程调用其他模块的方法。
详细的Fegin的使用可以参考：SpringCloud-Feign远程调用
2.1 远程调用用户模块和课程模块
在service_order订单模块创建：
@Component
@FeignClient("service-ucenter") //调用的服务名称
public interface UcenterClient {
//根据用户id获取用户信息，用于生成订单使用
@PostMapping("/educenter/member/getUserInfoOrder/{id}")
public UcenterMemberOrder getUserInfoOrder(@PathVariable("id") String id);
}
@Component
@FeignClient("service-edu") //调用的服务名称
public interface CourseClient {
//根据课程id查询课程信息
@PostMapping("/eduservice/coursefront/getCourseInfoOrder/{id}")
public CourseWebOrder getCourseInfoOrder(@PathVariable("id") String id);
}
2.2 远程调用方法的实现
在service-edu课程模块实现根据课程id查询课程信息的getCourseInfoOrder方法
controller层：
/**
* 根据课程id查询课程信息
* @param id 客场id
* @return CourseWebOrder
*/
@PostMapping("getCourseInfoOrder/{id}")
public CourseWebOrder getCourseInfoOrder(@PathVariable("id") String id) {
CourseWebVo courseInfo = courseService.getBaseCourseInfo(id);
CourseWebOrder courseWebOrder = new CourseWebOrder();
BeanUtils.copyProperties(courseInfo, courseWebOrder);
return courseWebOrder;
}
service层：
/**
* 根据课程id，编写sql语句查询课程信息
* @param courseId 课程id
* @return CourseWebVo
*/
@Override
public CourseWebVo getBaseCourseInfo(String courseId) {
return baseMapper.getBaseCourseInfo(courseId);
}
mapper层：
<!--根据课程id查询课程基本信息-->
<select id="getBaseCourseInfo" resultType="com.atguigu.eduservice.entity.frontvo.CourseWebVo">
SELECT ec.id,
ec.`title`,
ec.`price`,
ec.lesson_num as lessonNum,
ec.cover,
ec.buy_count as buyCount,
ec.view_count as viewCount,
ecd.description,
et.id teacherId,
et.`name` AS teacherName,
et.intro,
et.avatar,
es1.id as subjectLevelOneId,
es1.`title` AS subjectLevelOne,
es2.id as subjectLevelTwoId,
es2.`title` AS subjectLevelTwo
FROM edu_course ec
LEFT JOIN edu_course_description ecd ON ec.id = ecd.id
LEFT JOIN edu_teacher et ON ec.`teacher_id` = et.`id`
LEFT JOIN edu_subject es1 ON ec.`subject_parent_id` = es1.`id`
LEFT JOIN edu_subject es2 ON ec.`subject_id` = es2.`id`
WHERE ec.id = #{courseId}
</select>
在service_ucenter用户模块实现根据用户id获取用户信息的getUserInfoOrder方法
controller层：
/**
* 根据用户id获取用户信息，用于生成订单使用
*
* @param id 用户id
* @return UcenterMemberOrder
*/
@PostMapping("getUserInfoOrder/{id}")
public UcenterMemberOrder getUserInfoOrder(@PathVariable("id") String id) {
UcenterMember member = memberService.getById(id);
UcenterMemberOrder memberOrder = new UcenterMemberOrder();
BeanUtils.copyProperties(member, memberOrder);
return memberOrder;
}
2.3 根据课程id和用户id生成订单
controller层：
@CrossOrigin
@RestController
@RequestMapping("/eduorder/order")
public class OrderController {
@Autowired
private OrderService orderService;
/**
* 生成订单的方法
*
* @param courseId 课程id
* @param request 用于获取用户id
* @return 返回订单号
*/
@PostMapping("createOrder/{courseId}")
public R saveOrder(@PathVariable("courseId") String courseId, HttpServletRequest request) {
//通过JWT工具类获取用户id
//创建订单，返回订单号
String orderNo = orderService.createOrderById(courseId, JwtUtils.getMemberIdByJwtToken(request));
return R.ok().data("orderId", orderNo);
}
}
service层：
/**
* 根据courseId和userId生成订单
*
* @param courseId 课程id
* @param userId 用户id
* @return 返回订单号
*/
@Override
public String createOrderById(String courseId, String userId) {
//通过远程调佣根据用户id获取用户信息
UcenterMemberOrder userInfoOrder = ucenterClient.getUserInfoOrder(userId);
//通过远程调佣根据课程id获取课程信息
CourseWebOrder courseInfoOrder = courseClient.getCourseInfoOrder(courseId);
Order order = new Order();
//订单号
order.setOrderNo(OrderNoUtil.getOrderNo());
order.setCourseId(courseId);
order.setCourseTitle(courseInfoOrder.getTitle());
order.setCourseCover(courseInfoOrder.getCover());
order.setTeacherName(courseInfoOrder.getTeacherName());
order.setTotalFee(courseInfoOrder.getPrice());
order.setMemberId(userId);
order.setMobile(userInfoOrder.getMobile());
order.setNickname(userInfoOrder.getNickname());
//支付状态 未支付：0 已支付：1
order.setStatus(0);
//支付类型 微信：1 支付宝：2
order.setPayType(1);
//保存到数据库
baseMapper.insert(order);
//返回订单号
return order.getOrderNo();
}
3.查询订单信息
3.1 controller层
在OrderController里创建getOrderInfo用于生成订单：
/**
* 根据订单id查询订单信息
* @param orderId 订单id
* @return 返回订单信息
*/
@GetMapping("getOrderInfo/{orderId}")
public R getOrderInfo(@PathVariable("orderId") String orderId) {
Order order=orderService.getOrderByOrderId(orderId);
return R.ok().data("item", order);
}
3.2 service层
/**
* 根据订单id查询订单信息
*
* @param orderId 订单id
* @return 返回订单信息
*/
@Override
public Order getOrderByOrderId(String orderId) {
LambdaQueryWrapper<Order> queryWrapper = new LambdaQueryWrapper<>();
queryWrapper.eq(Order::getOrderNo, orderId);
return baseMapper.selectOne(queryWrapper);
}
4.生成微信支付的二维码
4.1 controller层
在PayLogController里创建createNative用于生成支付二维码：
@CrossOrigin
@RestController
@RequestMapping("/eduorder/paylog")
public class PayLogController {
@Autowired
private PayLogService payLogService;
/**
* 根据订单号生成微信支付二维码
* @param orderNo 订单号
* @return R
*/
@GetMapping("createNative/{orderNo}")
public R createNative(@PathVariable("orderNo") String orderNo){
//返回信息，包含二维码地址，还有其他信息
Map map=payLogService.createNative(orderNo);
return R.ok().data(map);
}
}
4.2 service层
- 生成微信支付二维码大概分为这几步：
- 根据订单号查询订单信息
- 使用map设置生成二维码需要的参数
- 发送httpclient请求，传递xml格式的参数，传入微信支付提供的固定地址
- 得到发送请求返回的结果
- 最终返回封装数据
/**
* 根据订单号生成微信支付二维码
* @param orderNo 订单号
* @return map
*/
@Override
public Map createNative(String orderNo) {
try {
//1.根据订单号查询订单信息
Order order = orderService.getOrderByOrderId(orderNo);
//2.使用map设置生成二维码需要的参数
Map m = new HashMap();
//关联的公众号appid
m.put("appid", ConstantWxPayUtils.WX_PAY_APP_ID);
//商户号
m.put("mch_id", ConstantWxPayUtils.WX_PAY_PARTNER);
//随机字符串
m.put("nonce_str", WXPayUtil.generateNonceStr());
//课程标题
m.put("body", order.getCourseTitle());
//订单号
m.put("out_trade_no", orderNo);
//价格
m.put("total_fee", order.getTotalFee().multiply(new BigDecimal("100")).longValue() + "");
//支付的ip地址
m.put("spbill_create_ip", "127.0.0.1");
m.put("notify_url", ConstantWxPayUtils.WX_PAY_NOTIFY_URL);
m.put("trade_type", "NATIVE");
//3.发送httpclient请求，传递参数xml格式，传入微信支付提供的固定地址
HttpClient client = new HttpClient(ConstantWxPayUtils.WX_PAY_WX_URL);
//设置xml格式的参数，需要传入二维码参数m和商户key
client.setXmlParam(WXPayUtil.generateSignedXml(m, ConstantWxPayUtils.WX_PAY_PARTNER_KEY));
//默认不支持https，设置为true支持
client.setHttps(true);
//执行请求发送
client.post();
//4.得到发送请求返回的结果
//返回的内容是xml格式
String xml = client.getContent();
//把xml格式转换为map集合
Map<String, String> resultMap = WXPayUtil.xmlToMap(xml);
//5.最终返回封装数据
Map map = new HashMap();
//订单号
map.put("out_trade_no", orderNo);
//课程id
map.put("course_id", order.getCourseId());
//价格
map.put("total_fee", order.getTotalFee());
//返回二维码操作状态码
map.put("result_code", resultMap.get("result_code"));
//二维码地址
map.put("code_url", resultMap.get("code_url"));
return map;
} catch (Exception e) {
throw new GuliException(20001, "生成微信支付二维码失败");
}
}
5.查询订单支付状态
5.1 controller层
在PayLogController里创建queryPayStatus用于获取支付状态：
/**
* 获取支付状态
* @param orderNo 订单号
* @return R
*/
@GetMapping("queryPayStatus/{orderNo}")
public R queryPayStatus(@PathVariable("orderNo") String orderNo){
Map<String, String> map=payLogService.queryPayStatus(orderNo);
if(map==null){
return R.error().message("支付出错！");
}
//如果map不为空，通过map获取订单状态
if(map.get("trade_state").equals("SUCCESS")){
//添加记录到支付表，更新订单表订单状态
payLogService.updateOrdersStatus(map);
return R.ok().message("支付成功！");
}
return R.ok().code(25000).message("正在支付中...");
}
5.2 service层
根据订单号查询订单支付状态大概分为一下几步：
- 封装参数
- 发送httpclient
- 得到请求返回的内容
/**
* 根据订单号查询订单支付状态
* @param orderNo
* @return
*/
@Override
public Map<String, String> queryPayStatus(String orderNo) {
try {
//1.封装参数
Map m=new HashMap();
//关联的公众号appid
m.put("appid",ConstantWxPayUtils.WX_PAY_APP_ID);
//商户号
m.put("mch_id",ConstantWxPayUtils.WX_PAY_PARTNER);
//订单号
m.put("out_trade_no",orderNo);
//随机字符串
m.put("nonce_str",WXPayUtil.generateNonceStr());
//2.发送httpclient
HttpClient client = new HttpClient(ConstantWxPayUtils.WX_PAY_QUERY_URL);
client.setXmlParam(WXPayUtil.generateSignedXml(m,ConstantWxPayUtils.WX_PAY_PARTNER_KEY));
client.setHttps(true);
client.post();
//3.得到请求返回的内容
String xml = client.getContent();
Map<String, String> resultMap=WXPayUtil.xmlToMap(xml);
return resultMap;
} catch (Exception e) {
e.printStackTrace();
throw new GuliException(20001,"查询订单支付状态失败");
}
}
如果支付成功，需要添加记录到支付表，更新订单表订单状态：
/**
* 向支付表添加记录，更新订单表订单状态
* @param map
*/
@Override
public void updateOrdersStatus(Map<String, String> map) {
//从map获取订单号
String orderNo = map.get("out_trade_no");
Order order = orderService.getOrderByOrderId(orderNo);
//更新订单表t_order的订单状态status
if(order.getStatus().intValue()==1){
return;
}
order.setStatus(1);
orderService.updateById(order);
//向支付表 t_pag_log 添加记录
PayLog payLog=new PayLog();
payLog.setOrderNo(orderNo);
payLog.setPayTime(new Date());
//支付类型
payLog.setPayType(1);
//支付金额
payLog.setTotalFee(order.getTotalFee());
//支付状态
payLog.setTradeState(map.get("trade_state"));
//交易流水号
payLog.setTransactionId(map.get("transaction_id"));
//其他属性，转为json字符串
payLog.setAttr(JSONObject.toJSONString(map));
baseMapper.insert(payLog);
}
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