分页工具类：
package com.linose.common.util;
import java.util.List;
/**
* 分页类
* @author xsg
* @param
*/
public class Page {
private int pageNum;
private int pageSize;
private int totalRecord;
private int totalPage;
private Listlist;
private int start;
private int end;
private int fromIndex;
private int toIndex;
public Page(int pageNum,int pageSize,int totalRecord) {
this.pageNum = pageNum;
this.pageSize = pageSize;
this.totalRecord = totalRecord;
if(pageNum==1) {
fromIndex=0;
}else {
fromIndex=(pageNum-1)*pageSize;
}
toIndex=pageNum*pageSize>totalRecord?totalRecord:pageNum*pageSize;
if (totalRecord % pageSize ==0) {
this.totalPage = totalRecord / pageSize;
}else {
this.totalPage = totalRecord / pageSize +1;
}
start =1;
end =5;
if (totalPage <=5) {
end =this.totalPage;
}else {
start = pageNum -2;
end = pageNum +2;
if (start <1) {
start =1;
end =5;
}
if (end >this.totalPage) {
end =totalPage;
start =end -5;
}
}
}
public int getPageNum() {
return pageNum;
}
public void setPageNum(int pageNum) {
this.pageNum = pageNum;
}
public int getPageSize() {
return pageSize;
}
public void setPageSize(int pageSize) {
this.pageSize = pageSize;
}
public int getTotalRecord() {
return totalRecord;
}
public int getFromIndex() {
return fromIndex;
}
public void setFromIndex(int fromIndex) {
this.fromIndex = fromIndex;
}
public int getToIndex() {
return toIndex;
}
public void setToIndex(int toIndex) {
this.toIndex = toIndex;
}
public void setTotalRecord(int totalRecord) {
this.totalRecord = totalRecord;
}
public int getTotalPage() {
return totalPage;
}
public void setTotalPage(int totalPage) {
this.totalPage = totalPage;
}
public List getList() {
return list;
}
public void setList(List list) {
this.list = list.subList(fromIndex,toIndex);
}
public int getStart() {
return start;
}
public void setStart(int start) {
this.start = start;
}
public int getEnd() {
return end;
}
public void setEnd(int end) {
this.end = end;
}
}
使用：
list<T> list=service.queryList();
int totalSize=list.size();
Page pages =new Page<>(query.getCurrent(),query.getSize(),totalSize);
pages.setList(list);
