[feat] 集成mybatis-plus的测试demo

mybatis-plus-test/src/main/java/com/ruoyi/mp/constant/OrderStatus.java

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+package com.ruoyi.mp.constant;
+
+import com.baomidou.mybatisplus.annotation.EnumValue;
+
+/**
+ * @author yexuejc
+ * @class-name OrderStatus
+ * @description
+ * @date 2024/1/19 15:29
+ */
+public enum OrderStatus {
+    /** 订单状态：默认：未支付 */
+    NORMAL(0),
+    /** 订单状态：已支付，待发货 */
+    PAYED(1),
+    /** 订单状态：已发货，待收货 */
+    SHIPPED(2),
+    /** 订单状态：完成，已收货 */
+    RECEIVED(3),
+    /** 订单状态：取消 */
+    CANCEL(4),
+    ;
+
+
+    @EnumValue
+    public final int code;
+
+    OrderStatus(int code) {
+        this.code = code;
+    }
+}

mybatis-plus-test/src/main/java/com/ruoyi/mp/domain/BaseVersionEntity.java

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+package com.ruoyi.mp.domain;
+
+import com.baomidou.mybatisplus.annotation.Version;
+import com.ruoyi.common.core.domain.BaseEntity;
+
+/**
+ * 带乐观锁版本的BaseEntity
+ *
+ * @author yexuejc
+ * @class-name BaseVersionEntity
+ * @description
+ * @date 2024/1/19 14:11
+ */
+public class BaseVersionEntity extends BaseEntity {
+    @Version
+    private long version;
+
+    public long getVersion() {
+        return version;
+    }
+
+    public BaseVersionEntity setVersion(long version) {
+        this.version = version;
+        return this;
+    }
+}

mybatis-plus-test/src/main/java/com/ruoyi/mp/domain/UserOrder.java

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+package com.ruoyi.mp.domain;
+
+import com.baomidou.mybatisplus.annotation.EnumValue;
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableField;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.ruoyi.mp.constant.OrderStatus;
+
+import java.util.Date;
+
+/**
+ * @author yexuejc
+ * @class-name UserOrder
+ * @description
+ * @date 2024/1/19 14:10
+ */
+public class UserOrder extends BaseVersionEntity {
+    private static final long serialVersionUID = 1L;
+    @TableId(value = "order_id", type = IdType.AUTO)
+    private Long orderId;
+    private Long uid;
+    private Long gid;
+
+    @TableField("order_time")
+    private Date orderTime;
+    private Long amount;
+    @TableField("pay_type")
+    private String payType;
+    @TableField("goods_name")
+    private String goodsName;
+
+    private OrderStatus status;
+
+    public OrderStatus getStatus() {
+        return status;
+    }
+
+    public UserOrder setStatus(OrderStatus status) {
+        this.status = status;
+        return this;
+    }
+
+    public Long getOrderId() {
+        return orderId;
+    }
+
+    public UserOrder setOrderId(Long orderId) {
+        this.orderId = orderId;
+        return this;
+    }
+
+    public Long getUid() {
+        return uid;
+    }
+
+    public UserOrder setUid(Long uid) {
+        this.uid = uid;
+        return this;
+    }
+
+    public Long getGid() {
+        return gid;
+    }
+
+    public UserOrder setGid(Long gid) {
+        this.gid = gid;
+        return this;
+    }
+
+    public Date getOrderTime() {
+        return orderTime;
+    }
+
+    public UserOrder setOrderTime(Date orderTime) {
+        this.orderTime = orderTime;
+        return this;
+    }
+
+    public Long getAmount() {
+        return amount;
+    }
+
+    public UserOrder setAmount(Long amount) {
+        this.amount = amount;
+        return this;
+    }
+
+    public String getPayType() {
+        return payType;
+    }
+
+    public UserOrder setPayType(String payType) {
+        this.payType = payType;
+        return this;
+    }
+
+    public String getGoodsName() {
+        return goodsName;
+    }
+
+    public UserOrder setGoodsName(String goodsName) {
+        this.goodsName = goodsName;
+        return this;
+    }
+
+    @Override
+    public String toString() {
+        return "UserOrder{" +
+                "orderId=" + orderId +
+                ", uid=" + uid +
+                ", gid=" + gid +
+                ", orderTime=" + orderTime +
+                ", amount=" + amount +
+                ", payType='" + payType + '\'' +
+                ", goodsName='" + goodsName + '\'' +
+                ", status=" + status +
+                ", version=" + getVersion() +
+                ", create_by=" + getCreateBy() +
+                ", create_time=" + getCreateTime() +
+                ", update_by=" + getUpdateBy() +
+                ", update_time=" + getUpdateTime() +
+                "} " ;
+    }
+}

mybatis-plus-test/src/main/java/com/ruoyi/mp/mapper/UserOrderMapper.java

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+package com.ruoyi.mp.mapper;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.ruoyi.mp.domain.UserOrder;
+
+/**
+ * @author yexuejc
+ * @class-name UserOrderMapper
+ * @description
+ * @date 2024/1/19 14:15
+ */
+public interface UserOrderMapper extends BaseMapper<UserOrder> {
+}

mybatis-plus-test/src/main/java/com/ruoyi/mp/service/UserOrderService.java

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+package com.ruoyi.mp.service;
+
+import com.ruoyi.mp.constant.OrderStatus;
+import com.ruoyi.mp.domain.UserOrder;
+import com.ruoyi.mp.mapper.UserOrderMapper;
+import org.springframework.stereotype.Service;
+
+import javax.annotation.Resource;
+import java.util.Date;
+
+/**
+ * @author yexuejc
+ * @class-name UserOrderService
+ * @description
+ * @date 2024/1/19 14:15
+ */
+@Service
+public class UserOrderService {
+
+    @Resource
+    UserOrderMapper userOrderMapper;
+
+    public void add() {
+        UserOrder entity = new UserOrder();
+        entity.setUid(123L);
+        entity.setGid(4885L);
+        entity.setStatus(OrderStatus.NORMAL);
+        entity.setOrderTime(new Date());
+        entity.setAmount(15200L);
+        entity.setPayType("W");
+        entity.setGoodsName("测试商品");
+        int row = userOrderMapper.insert(entity);
+        if (row > 0) {
+            System.out.println("添加成功");
+            System.out.println(entity);
+        } else {
+            System.out.println("添加失败");
+        }
+    }
+
+    public UserOrder get(long orderId) {
+        return userOrderMapper.selectById(orderId);
+    }
+
+    public void update(UserOrder order) {
+        int row = userOrderMapper.updateById(order);
+        if (row > 0) {
+            System.out.println("更新成功");
+        } else {
+            System.out.println("更新失败");
+        }
+    }
+}