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Java接口分页模版
- 代码如下
import java.io.Serializable;
import java.util.List;
/**
* 翻页模板工具类
*
*/
public final class PageModel<T> implements Serializable {
private static final long serialVersionUID = 1L;
private int currentPage;// 当前第几页
private int pageSize;// 每页显示条数
private int totalPage = 1;// 总页数
private int totalRecord;// 总记录数
private List<T> dataList;// 分页数据
public PageModel() {
}
/*
* 初始化PageModel实例
*/
public PageModel(final int pageSize, final int currentPage, final int totalRecord, List<T> dataList) {
// 初始化每页显示条数
this.pageSize = pageSize;
// 设置总记录数
this.totalRecord = totalRecord;
// 初始化总页数
this.dataList = dataList;
// 初始化当前页
this.currentPage = currentPage;
this.totalPage = this.totalRecord == 0 ? 1 : (this.totalRecord + this.pageSize - 1) / this.pageSize;
}
/*
* 外界获得PageModel实例
*/
@SuppressWarnings("unchecked")
public static PageModel<?> newPageModel(final int pageSize, final int currentPage, final int totalRecord, List<?> dataList) {
return new PageModel(pageSize, currentPage, totalRecord, dataList);
}
// 设置当前请求页
private void setCurrentPage(int currentPage) {
if (currentPage < 1) {
this.currentPage = 1;
}
if (currentPage > totalPage) {
this.currentPage = totalPage;
}
}
public int getCurrentPage() {
return currentPage;
}
public int getTotalRecord() {
return totalRecord;
}
public void setTotalRecord(int totalRecord) {
this.totalRecord = totalRecord;
}
public int getPageSize() {
return pageSize;
}
public void setPageSize(int pageSize) {
this.pageSize = pageSize;
}
public int getTotalPage() {
return totalPage;
}
public void setTotalPage(int totalPage) {
this.totalPage = totalPage;
}
/*
* 获得开始行数
*/
public int getStartRow() {
return (currentPage - 1) * pageSize;
}
/*
* 获得结束行
*/
public int getEndRow() {
return currentPage * pageSize;
}
/*
* 获得翻页数据
*/
public List<T> getDataList() {
return dataList;
}
/*
* 设置翻页数据
*/
public void setDataList(List<T> dataList) {
this.dataList = dataList;
}
// 首页
public int getFirst() {
return 1;
}
// 上一页
public int getPrevious() {
return currentPage - 1;
}
// 下一页
public int getNext() {
return currentPage + 1;
}
// 尾页
public int getLast() {
return totalPage;
}
}