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public void setPageSize(int pageSize) {
if(pageSize>0)
this.pageSize = pageSize;
}
public int getRecordCount() {
return recordCount;
}
public void setRecordCount(int recordCount) {
if(recordCount>0){
this.recordCount = recordCount;
this.setTotalPageCountByRs();

}

}

//设置总页数
private void setTotalPageCountByRs(){
if(this.recordCount%this.pageSize==0)
this.totalPageCount=this.recordCount/this.pageSize;
else if(this.recordCount%this.pageSize>0)
this.totalPageCount=this.recordCount/this.pageSize+1;
else
this.totalPageCount=0;
}
//得到开始记录数
public int getStartRow(){
return (currPageNo - 1) * pageSize + 1;
}
//得到结束记录数
public int getEndRow(){
return currPageNo * pageSize;
}
}

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原文地址：http://www.cnblogs.com/JesseCary/p/4507614.html