String tz=patientinfo.getBrtz();
String age=patientinfo.getNl();
String sql="select Fhz from who_age_weight where Sex='"+sex+"' and Weight='"+tz+"' and Age='"+age+"'";
int i=0;
String k5="";
i=igeneralDAO.count(sql);
if(i==0){//没有符合条件的值，那只能利用靠拢原则进行判断，取离其值最近的作为标准
/***********************************取接近tz的最大值***************************/
String sql1="select Weight from who_age_weight where Age='"+age+"' and Sex='"+sex+"' and Weight>="+tz+ " limit 1";
String sql2="select Weight from who_age_weight where Age='"+age+"' and Sex='"+sex+"' and Weight<="+tz+" group by Weight desc limit 1";
/*********************************** 取接近tz的最小值***************************/
List list1=igeneralDAO.findBySQL(sql1);
Iterator it1=list1.iterator();
double tz1=Double.parseDouble(tz);
double k2=0.0;
double k1=0.0;
System.out.println("你输入的的体重是"+tz);
if(it1.hasNext()==false){
k5="没有符合这个体重的测试值，请检查信息是否输入错误";
return k5;
}
while(it1.hasNext()){
k1=Double.parseDouble(it1.next().toString());//最大值
System.out.println("最大值k1："+k1);
}
List list2=igeneralDAO.findBySQL(sql2);//最小值
Iterator it2=list2.iterator();
if(it2.hasNext()==false){
k5="没有符合这个体重的测试值，请检查信息是否输入错误";
return k5;
}
while(it2.hasNext()){
k2=Double.parseDouble(it2.next().toString());
System.out.println("最小值k2："+k2);
}
System.out.println("(tz1-k2):"+(tz1-k2));
System.out.println("(k1-tz1):"+(k1-tz1));
if((tz1-k2)>=(k1-tz1)){
String k3=String.valueOf(k1);
String sql3="select Fhz from who_age_weight where Sex='"+sex+"' and Weight='"+k3+"' and Age='"+age+"'";
System.out.println("离最大值"+k3+"差距更小"+sql3);
List list=igeneralDAO.findBySQL(sql3);
Iterator it=list.iterator();
while(it.hasNext()){
k5=it.next().toString();
}
return k5;
}else
{
String k6=String.valueOf(k2);
String sql4="select Fhz from who_age_weight where Sex='"+sex+"' and Weight='"+k6+"' and Age='"+age+"'";
System.out.println("离最小值"+k6+"差距更小"+sql4);
List list=igeneralDAO.findBySQL(sql4);
Iterator it=list.iterator();
while(it.hasNext()){
k5=it.next().toString();
}
return k5;
}
}else if(i>1){ //利用查询后有符合条件的数据直接返回所查到的值
List list=igeneralDAO.findBySQL(sql);
Iterator it=list.iterator();
while(it.hasNext()){
k5=it.next().toString();
}
return k5;
}
return null;
}
