我有一个java类sample.java和网页example.jsp。我希望运行java类并从jsp读取值。这意味着用户不会运行jsp，她只运行java类。查找以下代码：

String mmobile = mobile;
//Prepare Url
URLConnection myURLConnection=null;
URL myURL=null;
BufferedReader reader=null;

String mainUrl="http://localhost:8080/Portal/example.jsp?";
//Prepare parameter string 
StringBuilder sbPostData= new StringBuilder(mainUrl);

sbPostData.append("mobile=").append(mmobile); 

//final string
 mainUrl = sbPostData.toString();
try
{
//prepare connection
myURL = new URL(mainUrl);
myURLConnection = myURL.openConnection();
myURLConnection.connect();

} 
catch (IOException e)

下面给出了example.jsp代码：

<%@page import="java.sql.*"    
    %>
 <%@ page import="myclass.SAMPLE" %>

  <%
  Class.forName("com.mysql.jdbc.Driver").newInstance();
  Connection conn = null;
  String mphone = request.getParameter("mobile");

  int mcompregkeyid=0; 
  try {
  conn = DriverManager.getConnection("jdbc:mysql://localhost/myschema","myuser","mypass");
   Statement stmt = conn.createStatement();
 ResultSet rset = stmt.executeQuery("Select max(keyid) from mytable");
 rset.next();
 mcompregkeyid=rset.getInt(1);

 } finally {
if (conn != null) try { conn.close(); } catch (SQLException e) {
    out.println("(\"Could not connect to local server.\nPlease try after some time.!!!\")");
}
 }
SAMPLE.getValue(String.valueOf(mcompregkeyid));

%>