select的问题.比较棘手.

[senjor]

out.print("查询方式<select name=ctoj_or_jtoc>");
out.print("<option value=ctoj>中译日</option>");
out.print("<option value=jtoc>日译中</option></select>");

怎样根据选择的结果分别进行查询??

String You_want=codeToString(request.getParameter("You_want"));
if(ctoj_or_jtoc.value="ctoj"){
if(You_want==null||You_want.trim().length()==0)
sqlString=new String("SELECT * FROM wordData");
else
sqlString=new String("SELECT * FROM wordData where chword like '%"+You_want.trim()+"%'");
out.print(sqlString);
}
else
{
if(You_want==null||You_want.trim().length()==0)
sqlString=new String("SELECT * FROM wordData");
else
sqlString=new String("SELECT * FROM wordData where jpword like '%"+You_want.trim()+"%'");
out.print(sqlString);

怎样根据选择的结果分别执行上边的if和else