发表于2016-05-262019-01-01 作者 wind
代码语言：javascript复制/**
* 分页对象，包含页码，每页条数，总条数 User: yangyan Date: 13-11-18 Time: 下午8:59 To change this
* template use File | Settings | File Templates.
*/
public class Page implements Serializable {
private static final long serialVersionUID = -784438755770041677L;
private int page = 1;
private int pageSize = 50;
private long total = 0;
public int getOffset() {
return (page - 1) * pageSize;
}
public int getStart() {
return getOffset();
}
public int getLimit() {
return getPageSize();
}
public int getTotalPage() {
return (int) ((total pageSize) / pageSize);
}
public Page() {
}
public Page(int page, int pageSize) {
this.page = page;
this.pageSize = pageSize;
}
public int getPage() {
return page;
}
public void setPage(int page) {
this.page = page;
}
public int getPageSize() {
return pageSize;
}
public void setPageSize(int pageSize) {
this.pageSize = pageSize;
}
public long getTotal() {
return total;
}
public void setTotal(long total) {
this.total = total;
}
/**
* 另一种形式
*/
public static class Offset extends Page {
private static final long serialVersionUID = -4518025561523700841L;
private int start = 0;
private int limit = 50;
public Offset() {
}
public Offset(int start, int limit) {
super(1, limit);
this.start = start;
this.limit = limit;
if (start < limit) {
setPage(1);
} else {
setPage((start limit * 2 - 1) / limit);
}
}
public int getLimit() {
return limit;
}
public int getStart() {
return start;
}
public void setLimit(int limit) {
this.limit = limit;
if (start < limit) {
setPage(1);
} else {
setPage((start limit * 2 - 1) / limit);
}
}
public void setStart(int start) {
this.start = start;
if (start < limit) {
setPage(1);
} else {
setPage((start limit * 2 - 1) / limit);
}
}
}
@Override
public String toString() {
return "(page:" this.getPage() " pageSize:" this.getPageSize() ")";
}
}
