package cn.autoform.web.client.util;
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import java.io.Serializable;
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import java.util.ArrayList;
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import java.util.List;
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/**
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* 分页工具类
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* @author yuezhw
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*
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*/
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public class PageTool implements Serializable {
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private static final long serialVersionUID = 1L;
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// 传参或指定
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private int num; // 当前页号, 采用自然数计数 1,2,3,...
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private int size; // 页面大小:一个页面显示多少个数据
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// 需要从数据库中查找出
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private long rowCount;// 数据总数：一共有多少个数据
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private List<?> list;
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// 可以根据上面属性：num,size,rowCount计算出
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private int pageCount; // 页面总数
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private int startRow;// 当前页面开始行, 第一行是0行
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private int first = 1;// 第一页 页号
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private int last;// 最后页 页号
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private int next;// 下一页 页号
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private int prev;// 前页 页号
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private int start;// 页号式导航, 起始页号
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private int end;// 页号式导航, 结束页号
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private int numCount = 10;// 页号式导航, 最多显示页号数量为numCount+1;这里显示11页。
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public List<String> showPages = new ArrayList<String>(); //要显示的页号
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private Object queryClass;//保存查询条件
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private String queryUrl;
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public Object getQueryClass() {
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return queryClass;
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}
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public void setQueryClass(Object queryClass) {
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this.queryClass = queryClass;
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}
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public int getNum() {
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return num;
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}
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public void setNum(int num) {
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if (num <= 0) {
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this.num = 1;
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} else {
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this.num = num;
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}
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}
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public int getSize() {
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return size;
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}
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public void setSize(int size) {
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this.size = size;
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}
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public long getRowCount() {
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return rowCount;
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}
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public void setRowCount(long rowCount) {
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this.rowCount = rowCount;
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}
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public int getPageCount() {
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return pageCount;
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}
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public void setPageCount(int pageCount) {
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this.pageCount = pageCount;
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}
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public int getStartRow() {
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return startRow;
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}
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public void setStartRow(int startRow) {
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this.startRow = startRow;
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}
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public int getFirst() {
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return first;
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}
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public void setFirst(int first) {
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this.first = first;
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}
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public int getLast() {
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return last;
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}
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public void setLast(int last) {
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this.last = last;
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}
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public int getNext() {
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return next;
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}
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public void setNext(int next) {
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this.next = next;
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}
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public int getPrev() {
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return prev;
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}
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public void setPrev(int prev) {
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this.prev = prev;
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}
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public int getStart() {
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return start;
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}
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public void setStart(int start) {
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this.start = start;
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}
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public int getEnd() {
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return end;
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}
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public void setEnd(int end) {
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this.end = end;
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}
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public int getNumCount() {
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return numCount;
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}
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public void setNumCount(int numCount) {
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this.numCount = numCount;
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}
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public List<String> getShowPages() {
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return showPages;
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}
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public void setShowPages(List<String> showPages) {
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this.showPages = showPages;
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}
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public String getQueryUrl() {
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return queryUrl;
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}
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public void setQueryUrl(String queryUrl) {
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this.queryUrl = queryUrl;
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}
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@SuppressWarnings("rawtypes")
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public List getList() {
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return list;
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}
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@SuppressWarnings("rawtypes")
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public void setList(List list) {
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this.list = list;
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}
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public PageTool(int size, String str_num, long rowCount) {
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int num = 1;
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if (str_num != null) {
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num = Integer.parseInt(str_num);
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}
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this.num = num;
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this.size = size;
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this.rowCount = rowCount;
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this.pageCount = (int) Math.ceil((double) rowCount / size);
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this.num = Math.min(this.num, pageCount);
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this.num = Math.max(1, this.num);
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this.startRow = (this.num - 1) * size;
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this.last = this.pageCount;
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this.next = Math.min(this.pageCount, this.num + 1);
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this.prev = Math.max(1, this.num - 1);
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// 计算page 控制
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start = Math.max(this.num - numCount / 2, first);
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end = Math.min(start + numCount, last);
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if (end - start < numCount) {
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start = Math.max(end - numCount, 1);
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}
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for(int i = start; i <= end; i++){
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showPages.add(String.valueOf(i));
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}
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}
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public PageTool(int size, int num, long rowCount) {
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if (num <= 0) {
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num = 1;
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}
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this.num = num;
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this.size = size;
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this.rowCount = rowCount;
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this.pageCount = (int) Math.ceil((double) rowCount / size);
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this.num = Math.min(this.num, pageCount);
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this.num = Math.max(1, this.num);
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this.startRow = (this.num - 1) * size;
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this.last = this.pageCount;
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this.next = Math.min(this.pageCount, this.num + 1);
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this.prev = Math.max(1, this.num - 1);
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// 计算page 控制
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start = Math.max(this.num - numCount / 2, first);
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end = Math.min(start + numCount, last);
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if (end - start < numCount) {
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start = Math.max(end - numCount, 1);
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}
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for(int i = start; i <= end; i++){
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showPages.add(String.valueOf(i));
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}
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}
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public PageTool() {
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}
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}
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