Java介面分頁模版

• 程式碼如下

import java.io.Serializable;
import java.util.List;

/**
 * 翻頁模板工具類
 *
 */
public final class PageModel<T> implements Serializable {

    private static final long serialVersionUID = 1L;
    private int currentPage;// 當前第幾頁
    private int pageSize;// 每頁顯示條數
    private
 
 int totalPage = 1;// 總頁數
    private int totalRecord;// 總記錄數
    private List<T> dataList;// 分頁資料

    public PageModel() {
    }

    /*
     * 初始化PageModel例項
     */
    public PageModel(final int pageSize, final int currentPage, final int totalRecord, List<T> dataList) {
        // 初始化每頁顯示條數
        this
 
.pageSize = pageSize;
        // 設定總記錄數
        this.totalRecord = totalRecord;
        // 初始化總頁數
        this.dataList = dataList;
        // 初始化當前頁
        this.currentPage = currentPage;

        this.totalPage = this.totalRecord == 0 ? 1 : (this.totalRecord + this.pageSize - 1) / this.pageSize;
    }

    /*
     * 外界獲得PageModel例項
     */
 

    @SuppressWarnings("unchecked")
    public static PageModel<?> newPageModel(final int pageSize, final int currentPage, final int totalRecord, List<?> dataList) {

        return new PageModel(pageSize, currentPage, totalRecord, dataList);
    }

    // 設定當前請求頁
    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;
    }

    /*
     * 獲得開始行數
     */
    public int getStartRow() {
        return (currentPage - 1) * pageSize;
    }

    /*
     * 獲得結束行
     */
    public int getEndRow() {
        return currentPage * pageSize;
    }

    /*
     * 獲得翻頁資料
     */
    public List<T> getDataList() {
        return dataList;
    }

    /*
     * 設定翻頁資料
     */
    public void setDataList(List<T> dataList) {
        this.dataList = dataList;
    }

    // 首頁
    public int getFirst() {
        return 1;
    }

    // 上一頁

    public int getPrevious() {
        return currentPage - 1;
    }

    // 下一頁
    public int getNext() {
        return currentPage + 1;
    }

    // 尾頁
    public int getLast() {
        return totalPage;
    }
}