This is my source of JSP and the error information.

{========Source code========}

<html>
<head>
<title>My Page</title>
</head>
<body>
<h1>My Page</h1>
<%! int b; %>
<%! String h; %>
<%
  String url="jdbc:odbc:ok";
  String queryString="";
  try{
     Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
     Connection   con=DriverManager.getConnection(url,"pharm","pharm");

     Statement stmt=con.createStatement();
     queryString="select prrfnbr,prnbr from product where prmenbr=66";
     ResultSet rs=stmt.executeQuery(queryString);

     if(rs.next()!=null){

     bian=rs.getInt(1);

    hao=rs.getString(2);


     rs.close();
     stmt.close();
     con.close();
  }catch(Exception e){ }

%>
<table><tr><td>number</td><td>value</td></tr>
<tr><td>
<%= b %>
</td><td>
 <td><tr>
<%= h %>
 </td></tr>
</body>
</html>


{========Error infomation======}


 500 Internal Server Error

Java Server Page Translation Error

Error during compilation :

C:\JavaWebServer2.0\tmpdir\default\pagecompile\jsp\_test.java:102:
'catch' without 'try'.
                  }catch(Exception e){ }
                   ^
C:\JavaWebServer2.0\tmpdir\default\pagecompile\jsp\_test.java:129:
'try' without 'catch' or 'finally'.
}
^
C:\JavaWebServer2.0\tmpdir\default\pagecompile\jsp\_test.java:129: '}'
expected.
}
 ^
3 errors
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