[jsp]網頁分頁模組程式-SubPages

這裡提供一個撰寫jsp時很常會用到的一個分頁功能,主要提供二種簡單的樣式,程式是改寫一個php的分頁程式而來,大概的結果會像下圖,可以自行增加CSS來美化結果。

樣式一主要提供首頁、上一頁、下一頁及尾頁功能

樣式二提供分頁數列及首頁、上一頁、下一頁及尾頁功能

SubPages.png

這是有使用CSS調整過的,整體感覺就會差吧!

SubPages2.png

以下是主要的原始碼




package web.tools;

public class SubPages {
    private int each_disNums;// 每頁顯示的條目數

    private int nums;// 總條目數

    private int current_page;// 目前所在頁數

    private int sub_pages;// 每次顯示的頁數

    private int pageNums;// 總頁數 總數/每次顯示的頁數

    // private java.util.ArrayList<Integer> page_array;// 用來構造分頁的數組

    private String subPage_link;// 每個分頁的鏈接

    // private int subPage_type;// 顯示分頁的類型

    /*
     * 當subPage_type=1的時候為普通分頁模式 example: 共4523條記錄,每頁顯示10條,當前第1/453頁 [首頁] [上頁]
     * [下頁] [尾頁] 當subPage_type=2的時候為經典分頁樣式 example: 當前第1/453頁 [首頁] [上頁] 1 2 3 4
     * 5 6 7 8 9 10 [下頁] [尾頁]
     */

    public SubPages(int each_disNums, int nums, int current_page,
            int sub_pages, String subPage_link) {
        this.each_disNums = each_disNums;
        this.nums = nums;
        if (current_page < 1) {
            this.current_page = 1;
        } else {
            this.current_page = current_page;
        }
        this.sub_pages = sub_pages;
        this.pageNums = (int) java.lang.Math.ceil(nums / each_disNums);
        this.subPage_link = subPage_link;
        // this.show_SubPages(subPage_type);
        // echo pageNums."--".sub_pages;

    }

    /*
     * show_SubPages函數用在構造函數里面。而且用來判斷顯示什麼樣子的分頁type
     */
    // private String show_SubPages(int subPage_type){
    // if(subPage_type == 1){
    // return this.subPageCss1();
    // }else if (subPage_type == 2){
    // return this.subPageCss2();
    // }
    // }
    /*
     * 用來給建立分頁的數組初始化的函數。1,2,3,4,5,6.....
     */
    public java.util.ArrayList<Integer> initArray() {
        java.util.ArrayList<Integer> page_array = new java.util.ArrayList<Integer>();
        for (int i = 0; i < this.sub_pages; i++) {
            page_array.add(i, i);
            ;
        }
        return page_array;
    }

    /*
     * construct_num_Page該函數使用來構造顯示的條目 即使:[1][2][3][4][5][6][7][8][9][10]
     */
    public java.util.ArrayList<Integer> construct_num_Page() {
        java.util.ArrayList<Integer> current_array = new java.util.ArrayList<Integer>();
        if (this.pageNums < this.sub_pages) {
            // current_array=array();
            for (int i = 0; i < this.pageNums; i++) {
                current_array.add(i, i + 1);
            }
        } else {
            current_array = this.initArray();
            if (this.current_page <= 3) {
                for (int i = 0; i < current_array.size(); i++) {
                    current_array.set(i, i + 1);
                }
            } else if (this.current_page <= this.pageNums
                    && this.current_page > this.pageNums - this.sub_pages + 1) {
                for (int i = 0; i < current_array.size(); i++) {
                    current_array.set(i, (this.pageNums) - (this.sub_pages) + 1
                            + i);
                }
            } else {
                for (int i = 0; i < current_array.size(); i++) {
                    current_array.set(i, this.current_page - 2 + i);
                }
            }
        }
        for (int i = 0; i < current_array.size(); i++)
            System.out.print(current_array.get(i) + " ");
        System.out.println();
        return current_array;
    }

    /*
     * 構造普通模式的分頁 共4523條記錄,每頁顯示10條,當前第1/453頁 [首頁] [上頁] [下頁] [尾頁]
     */
    public String subPageCss1() {
        String subPageCss1Str = "";
        subPageCss1Str += "共" + this.nums + "條記錄,";
        subPageCss1Str += "每頁顯示" + this.each_disNums + "條,";
        subPageCss1Str += "當前第" + this.current_page + "/" + this.pageNums
                + "頁 ";
        if (this.current_page > 1) {
            String firstPageUrl = this.subPage_link + "1";
            String prewPageUrl = this.subPage_link + (this.current_page - 1);
            subPageCss1Str += "[<a href='" + firstPageUrl + "'>首頁</a>] ";
            subPageCss1Str += "[<a href='" + prewPageUrl + "'>上一頁</a>] ";
        } else {
            subPageCss1Str += "[首頁] ";
            subPageCss1Str += "[上一頁] ";
        }

        if (this.current_page < this.pageNums) {
            String lastPageUrl = this.subPage_link + this.pageNums;
            String nextPageUrl = this.subPage_link + (this.current_page + 1);
            subPageCss1Str += " [<a href='" + nextPageUrl + "'>下一頁</a>] ";
            subPageCss1Str += "[<a href='" + lastPageUrl + "'>尾頁</a>] ";
        } else {
            subPageCss1Str += "[下一頁] ";
            subPageCss1Str += "[尾頁] ";
        }

        return subPageCss1Str;

    }

    /*
     * 構造經典模式的分頁 當前第1/453頁 [首頁] [上頁] 1 2 3 4 5 6 7 8 9 10 [下頁] [尾頁]
     */
    public String subPageCss2() {
        String subPageCss2Str = "";
        subPageCss2Str += "當前第" + current_page + "/" + pageNums + "頁 ";

        if (current_page > 1) {
            String firstPageUrl = subPage_link + "1";
            String prewPageUrl = subPage_link + (current_page - 1);
            subPageCss2Str += "[<a href='" + firstPageUrl + "'>首頁</a>] ";
            subPageCss2Str += "[<a href='" + prewPageUrl + "'>上一頁</a>] ";
        } else {
            subPageCss2Str += "[首頁] ";
            subPageCss2Str += "[上一頁] ";
        }

        java.util.ArrayList<Integer> a = construct_num_Page();
        int s;
        for (int i = 0; i < a.size(); i++) {
            s = a.get(i);
            if (s == current_page) {
                subPageCss2Str += "[<span style='color:red;font-weight:bold;'>"
                        + s + "</span>]";
            } else {
                String url = subPage_link + s;
                subPageCss2Str += "[<a href='" + url + "'>" + s + "</a>]";
            }
        }

        if (current_page < pageNums) {
            String lastPageUrl = subPage_link + pageNums;
            String nextPageUrl = subPage_link + (current_page + 1);
            subPageCss2Str += " [<a href='" + nextPageUrl + "'>下一頁</a>] ";
            subPageCss2Str += "[<a href='" + lastPageUrl + "'>尾頁</a>] ";
        } else {
            subPageCss2Str += "[下一頁] ";
            subPageCss2Str += "[尾頁] ";
        }
        return subPageCss2Str;
    }

    public static void main(String args[]) {
        web.tools.SubPages pages = new web.tools.SubPages(20, 1031, 13, 10,
                "index.jsp?p=");
        System.out.println(pages.subPageCss2());
    }
}

jsp使用的原始碼(大部份說明都在java程式裡)

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<%

//if(!$pageCurrent) $pageCurrent=1;  
web.tools.SubPages  pages = new web.tools.SubPages(20,1031,13,10,"index.jsp?p=");
out.print("樣式一:"+pages.subPageCss1());
out.print("</br>");
out.print("樣式二:"+pages.subPageCss2());
%>
</body>
</html>

原始碼下載點

3 thoughts to “[jsp]網頁分頁模組程式-SubPages”

  1. 用你的方法複製貼上之後會出現
    Note: sun.tools.javac.Main has been deprecated.
    /ResinEx/成品/index.jsp:13: Class web.tools.SubPages not found.
    web.tools.SubPages pages = new web.tools.SubPages(20,1031,13,10,”index.jsp?p=”);
    ^
    /ResinEx/成品/index.jsp:13: Class web.tools.SubPages not found.
    web.tools.SubPages pages = new web.tools.SubPages(20,1031,13,10,”index.jsp?p=”);
    ^
    2 errors, 1 warning

    請問如何解決

    1. 這看起來像是少了一隻程式,建議你可以用我提供的原始碼
      你使用Resin會設定自動編譯嘛?
      或著你可以提供你的全部測試的原始碼?我幫你看看?
      mail for me
      catyku at gmail.com

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