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后端创建订单接口完成；删除service层interface

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小墨
2023-03-19 17:39:50 +08:00
parent 33ebe5a982
commit 90a17c926e
25 changed files with 1092 additions and 417 deletions
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19
backend/microservice-common/src/main/java/com/cxyxiaomo/epp/common/enums/OrderStatus.java Normal file
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@@ -0,0 +1,19 @@
package com.cxyxiaomo.epp.common.enums;
public enum OrderStatus {
PENDING("Pending"),
PROCESSING("Processing"),
SHIPPED("Shipped"),
DELIVERED("Delivered"),
CANCELLED("Cancelled");
private final String value;
private OrderStatus(String value) {
this.value = value;
}
public String getValue() {
return value;
}
}

1
backend/microservice-common/src/main/java/com/cxyxiaomo/epp/common/pojo/Good.java
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@@ -15,6 +15,7 @@ public class Good {
String gallery;
String brief;
Boolean isOnSale;
Integer sortOrder;
String picUrl;
Integer type;
String unit;

18
backend/microservice-common/src/main/java/com/cxyxiaomo/epp/common/pojo/Order.java Normal file
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@@ -0,0 +1,18 @@
package com.cxyxiaomo.epp.common.pojo;
import com.cxyxiaomo.epp.common.enums.OrderStatus;
import lombok.Data;
import lombok.NoArgsConstructor;
import lombok.experimental.Accessors;
import java.time.LocalDateTime;
@Data
@NoArgsConstructor
@Accessors(chain = true) // 链式写法
public class Order {
private Long id;
private Integer userId;
private LocalDateTime orderDate;
private OrderStatus orderStatus;
}

16
backend/microservice-common/src/main/java/com/cxyxiaomo/epp/common/pojo/OrderDetail.java Normal file
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@@ -0,0 +1,16 @@
package com.cxyxiaomo.epp.common.pojo;
import lombok.Data;
import lombok.NoArgsConstructor;
import lombok.experimental.Accessors;
@Data
@NoArgsConstructor
@Accessors(chain = true) // 链式写法
public class OrderDetail {
private Long id;
private Long orderId;
private Long goodId;
private Integer goodCount;
private Double unitPrice;
}

85
backend/microservice-common/src/main/java/com/cxyxiaomo/epp/common/utils/SnowflakeManager.java Normal file
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@@ -0,0 +1,85 @@
package com.cxyxiaomo.epp.common.utils;
import java.security.SecureRandom;
public class SnowflakeManager {
private static final long EPOCH_STAMP = 1262275200000L;
private static final long SEQUENCE_BIT = 12L;
private static final long MACHINE_BIT = 5L;
private static final long DATA_CENTER_BIT = 5L;
private static final long MAX_SEQUENCE_NUM = -1L ^ (-1L << SEQUENCE_BIT);
private static final long MAX_MACHINE_NUM = -1L ^ (-1L << MACHINE_BIT);
private static final long MAX_DATA_CENTER_NUM = -1L ^ (-1L << DATA_CENTER_BIT);
private static final long MACHINE_LEFT = SEQUENCE_BIT;
private static final long DATA_CENTER_LEFT = SEQUENCE_BIT + MACHINE_BIT;
private static final long TIMESTAMP_LEFT = SEQUENCE_BIT + MACHINE_BIT + DATA_CENTER_BIT;
private final long machineId;
private final long dataCenterId;
private long sequence = 0L;
private long lastTimestamp = -1L;
public SnowflakeManager(long machineId, long dataCenterId) {
if (machineId > MAX_MACHINE_NUM || machineId < 0) {
throw new IllegalArgumentException(String.format("machine id can't be greater than %d or less than 0", MAX_MACHINE_NUM));
}
if (dataCenterId > MAX_DATA_CENTER_NUM || dataCenterId < 0) {
throw new IllegalArgumentException(String.format("data center id can't be greater than %d or less than 0", MAX_DATA_CENTER_NUM));
}
this.machineId = machineId;
this.dataCenterId = dataCenterId;
}
public synchronized long nextValue() throws Exception {
String os = System.getProperty("os.name");
SecureRandom secureRandom;
if (os.toLowerCase().startsWith("win")) {
// windows机器用
secureRandom = new SecureRandom(); // SecureRandom.getInstanceStrong();
} else {
// linux机器用
secureRandom = SecureRandom.getInstance("NativePRNGNonBlocking");
}
//SecureRandom secureRandom = SecureRandom.getInstanceStrong();
long currentTimeMillis = this.currentTimeMillis();
if(currentTimeMillis < this.lastTimestamp) {
throw new Exception(String.format("Clock moved backwards. Refusing to generate id for %d milliseconds", (this.lastTimestamp-currentTimeMillis)));
}
if(this.lastTimestamp == currentTimeMillis) {
this.sequence = (this.sequence+1) & MAX_SEQUENCE_NUM;
if (this.sequence == 0) {
this.sequence = secureRandom.nextInt(Long.valueOf(SEQUENCE_BIT).intValue());
currentTimeMillis = this.tilNextMillis(this.lastTimestamp);
}
} else {
this.sequence = secureRandom.nextInt(Long.valueOf(SEQUENCE_BIT).intValue());
}
this.lastTimestamp = currentTimeMillis;
// 64 Bit ID (42(Millis)+5(Data Center ID)+5(Machine ID)+12(Repeat Sequence Summation))
long nextId = ((currentTimeMillis-EPOCH_STAMP) << TIMESTAMP_LEFT)
| (this.dataCenterId << DATA_CENTER_LEFT)
| (this.machineId << MACHINE_LEFT)
| this.sequence;
return nextId;
}
private long tilNextMillis(long lastTimestamp) {
long currentTimeMillis = this.currentTimeMillis();
while (currentTimeMillis <= lastTimestamp) {
currentTimeMillis = this.currentTimeMillis();
}
return currentTimeMillis;
}
private long currentTimeMillis() {
return System.currentTimeMillis();
}
public static void main(String[] args) throws Exception {
SnowflakeManager snowflakeManager = new SnowflakeManager(0L,0L);
long l = snowflakeManager.nextValue();
System.out.println(l);
}
}

1
backend/microservice-common/src/main/java/com/cxyxiaomo/epp/common/vo/GoodVO.java
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@@ -24,6 +24,7 @@ public class GoodVO implements Serializable {
String gallery;
String brief;
Boolean isOnSale;
Integer sortOrder;
String picUrl;
Integer type;
String unit;

40
backend/microservice-common/src/main/java/com/cxyxiaomo/epp/common/vo/OrderDetailVO.java Normal file
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@@ -0,0 +1,40 @@
package com.cxyxiaomo.epp.common.vo;
import com.cxyxiaomo.epp.common.pojo.OrderDetail;
import lombok.Data;
import lombok.NoArgsConstructor;
import lombok.experimental.Accessors;
import java.io.Serializable;
import java.util.List;
import java.util.stream.Collectors;
// 数据库关系映射
@Data
@NoArgsConstructor
@Accessors(chain = true) // 链式写法
// 微服务必须要实现Serializable
public class OrderDetailVO implements Serializable {
private Long id;
private Long orderId;
private Long goodId;
private Integer goodCount;
private Double unitPrice;
public static OrderDetailVO convertFrom(OrderDetail orderDetail) {
if (orderDetail == null) {
return null;
}
OrderDetailVO orderDetailVO = new OrderDetailVO();
// BeanUtils.copyProperties(orderDetail, orderDetailVO);
return orderDetailVO;
}
public static List<OrderDetailVO> convertFrom(List<OrderDetail> orderDetailList) {
if (orderDetailList == null) {
return null;
}
return orderDetailList.stream().map(OrderDetailVO::convertFrom).collect(Collectors.toList());
}
}

44
backend/microservice-common/src/main/java/com/cxyxiaomo/epp/common/vo/OrderVO.java Normal file
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@@ -0,0 +1,44 @@
package com.cxyxiaomo.epp.common.vo;
import com.cxyxiaomo.epp.common.enums.OrderStatus;
import com.cxyxiaomo.epp.common.pojo.Order;
import lombok.Data;
import lombok.NoArgsConstructor;
import lombok.experimental.Accessors;
import org.springframework.beans.BeanUtils;
import java.io.Serializable;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.util.List;
import java.util.stream.Collectors;
// 数据库关系映射
@Data
@NoArgsConstructor
@Accessors(chain = true) // 链式写法
// 微服务必须要实现Serializable
public class OrderVO implements Serializable {
private Long id;
private Integer userId;
private LocalDateTime orderDate;
private OrderStatus orderStatus;
public static OrderVO convertFrom(Order order) {
if (order == null) {
return null;
}
OrderVO orderVO = new OrderVO();
BeanUtils.copyProperties(order, orderVO);
return orderVO;
}
public static List<OrderVO> convertFrom(List<Order> orderList) {
if (orderList == null) {
return null;
}
List<OrderVO> goodsOrdersVOList = orderList.stream().map(OrderVO::convertFrom).collect(Collectors.toList());
return goodsOrdersVOList;
}
}