package com.dy.common.webUtil;
|
|
|
import com.alibaba.fastjson2.annotation.JSONField;
|
import io.swagger.v3.oas.annotations.media.Schema;
|
import lombok.*;
|
|
import java.util.Map;
|
|
@Data
|
@ToString
|
@NoArgsConstructor
|
@AllArgsConstructor
|
@Builder
|
@Schema(name = "查询结果基类")
|
public class QueryResultVo<T> {
|
|
/**
|
* 每页显示的记录数
|
*/
|
@Schema(description = "每页记录数")
|
@Builder.Default
|
public Integer pageSize = 0 ;
|
/**
|
* 记录总数
|
*/
|
@Schema(description = "记录总数")
|
@Builder.Default
|
public Long itemTotal = 0L;
|
/**
|
* 当前页
|
*/
|
@Schema(description = "当前页")
|
@Builder.Default
|
public Integer pageCurr = 0;
|
/**
|
* 总页数
|
*/
|
@Schema(description = "总页数")
|
@Builder.Default
|
public Integer pageTotal = 0;
|
|
@Schema(description = "数据")
|
@Builder.Default
|
public T content = null;
|
|
/**
|
* 查询开始记录
|
*/
|
@Schema(hidden = true)
|
@JSONField(serialize = false)
|
public Integer queryStart ;
|
|
/**
|
* 查询数量
|
*/
|
@Schema(hidden = true)
|
@JSONField(serialize = false)
|
public Integer queryCount ;
|
|
|
public void calculateAndSet(Long itemTotal, Map<String, Object> params) {
|
this.itemTotal = itemTotal ;
|
if(this.itemTotal == null){
|
itemTotal = 0L ;
|
}
|
|
if (pageSize < 1) {
|
pageSize = 1;
|
}
|
pageTotal = (int)Math.ceil((double)itemTotal/pageSize);
|
|
if (pageTotal == 0) {
|
pageTotal = 1;
|
}
|
if (pageCurr < 1) {
|
pageCurr = 1;
|
}
|
if (pageCurr > pageTotal) {
|
pageCurr = pageTotal;
|
}
|
|
//select * from table_name limit 5 ，10;//从第6行开始，检索10行记录，即：检索记录行 6-15
|
this.queryStart = (this.pageCurr - 1) * this.pageSize ;
|
this.queryCount = this.pageSize ;
|
|
params.put("queryStart", this.queryStart) ;
|
params.put("queryCount", this.queryCount) ;
|
}
|
|
}
|
