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src/main/java/com/mhhy/common/BasePageReq.java

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+package com.mhhy.common;
+
+import com.baomidou.mybatisplus.core.metadata.IPage;
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import io.swagger.annotations.ApiModelProperty;
+import lombok.Data;
+
+@Data
+public class BasePageReq {
+
+    //最后一条数据的id
+    //private int lastId;
+
+    //分页页码，从1开始
+    @ApiModelProperty(value = "分页页码，从1开始")
+    private int page = 1;
+
+    //分页大小，默认10
+    @ApiModelProperty(value = "分页大小，默认10")
+    private int size = 10;
+
+    //获取page对象，用于mybatis-plus
+    public IPage<?> getIPage() {
+        return new Page<>(page, size).setSearchCount(false);
+    }
+
+    //获取offset，用于手动处理sql
+    public int getOffset() {
+        return page > 1 ? page * size - size : 0;
+    }
+}