The following is an introduction to using List's subList method to achieve paging List. If you don't say much, just look at the code
/** *//** * List paging* Implementation: Use List's obtain sublist method to realize paging of List* @author Xianwu* @date 2010-1-8 16:27:31 * */ import java.util.ArrayList; import java.util.List; public class PageModel { private int page = 1; // Current page public int totalPages = 0; // Total number of pages private int pageRecorders;// 5 pieces of data per page private int totalRows = 0; // Total number of data private int pageStartRow = 0;// Start number of each page private int pageEndRow = 0; // The end number of data displayed on each page private boolean hasNextPage = false; // Is there the next page private boolean hasPreviousPage = false; // Is there a previous page private List list; // private Iterator it; public PageModel(List list, int pageRecorders) { init(list, pageRecorders);// The total number of records is divided through object set} /** *//** * Initialize the list and inform the list of records per page* @param list * @param pageRecorders */ public void init(List list, int pageRecorders) { this.pageRecorders = pageRecorders; this.list = list; totalRows = list.size(); // it = list.iterator(); hasPreviousPage = false; if ((totalRows % pageRecorders) == 0) { totalPages = totalRows / pageRecorders; } else { totalPages = totalRows / pageRecorders + 1; } if (page >= totalPages) { hasNextPage = false; } else { hasNextPage = true; } if (totalRows < pageRecorders) { this.pageStartRow = 0; this.pageEndRow = totalRows; } else { this.pageStartRow = 0; this.pageEndRow = pageRecorders; } } // Determine whether to paging public boolean isNext() { return list.size() > 5; } public void setHasPreviousPage(boolean hasPreviousPage) { this.hasPreviousPage = hasPreviousPage; } public String toString(int temp) { String str = Integer.toString(temp); return str; } public void description() { String description = "Number of data:" + this.getTotalRows() + "Number of pages: " + this.getTotalPages() + "Current pages:" + this.getPage() + " Is there a previous page: " + this.isHasPreviousPage() + " Is there a next page:" + this.isHasNextPage() + " Start line count:" + this.getPageStartRow() + " Terminate line count:" + this.getPageEndRow(); System.out.println(description); } public List getNextPage() { page = page + 1; disposePage(); System.out.println("The user uses the "+ page + "page"); this.description(); return getObjects(page); } /** *//** * Handle paging*/ private void disposePage() { if (page == 0) { page = 1; } if ((page - 1) > 0) { hasPreviousPage = true; } else { hasPreviousPage = false; } if (page >= totalPages) { hasNextPage = false; } else { hasNextPage = true; } } public List getPreviousPage() { page = page - 1; if ((page - 1) > 0) { hasPreviousPage = true; } else { hasPreviousPage = false; } if (page >= totalPages) { hasNextPage = false; } else { hasNextPage = true; } this.description(); return getObjects(page); } /** *//** * Get the content of which page* * @param page * @return */ public List getObjects(int page) { if (page == 0) this.setPage(1); else this.setPage(page); this.disposePage(); if (page * pageRecorders < totalRows) {// Determine whether it is the last page pageEndRow = page * pageRecorders; pageStartRow = pageEndRow - pageRecorders; } else { pageEndRow = totalRows; pageStartRow = pageRecorders * (totalPages - 1); } List objects = null; if (!list.isEmpty()) { objects = list.subList(pageStartRow, pageEndRow); } //this.description(); return objects; } public List getFistPage() { if (this.isNext()) { return list.subList(0, pageRecorders); } else { return list; } } public boolean isHasNextPage() { return hasNextPage; } public void setHasNextPage(boolean hasNextPage) { this.hasNextPage = hasNextPage; } public List getList() { return list; } public void setList(List list) { this.list = list; } public int getPage() { return page; } public void setPage(int page) { this.page = page; } public int getPageEndRow() { return pageEndRow; } public void setPageEndRow(int pageEndRow) { this.pageEndRow = pageEndRow; } public int getPageRecorders() { return pageRecorders; } public void setPageRecorders(int pageRecorders) { this.pageRecorders = pageRecorders; } public int getPageStartRow() { return pageStartRow; } public void setPageStartRow(int pageStartRow) { this.pageStartRow = pageStartRow; } public int getTotalPages() { return totalPages; } public void setTotalPages(int totalPages) { this.totalPages = totalPages; } public int getTotalRows() { return totalRows; } public void setTotalRows(int totalRows) { this.totalRows = totalRows; } public boolean isHasPreviousPage() { return hasPreviousPage; } } //Test class: package com.Gavin.tools.util; import java.util.ArrayList; import java.util.List; public class TestPagerModel { public static void main(String args[]) { List<String> list = new ArrayList<String>(); list.add("a"); list.add("b"); list.add("c"); list.add("d"); list.add("e"); list.add("f"); list.add("g"); list.add("h"); list.add("h"); list.add("i"); list.add("j"); list.add("k"); list.add("l"); list.add("m"); PageModel pm = new PageModel(list, 5); List sublist = pm.getObjects(3); for(int i = 0; i < sublist.size(); i++) { System.out.println(sublist.get(i)); } System.out.println(sublist.get(0)); } }The above is all the content of this article. 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