package faceRecognition.server;
import faceRecognition.client.AuthService;
import com.google.gwt.user.server.rpc.RemoteServiceServlet;
import java.sql.*;
import java.util.*;
import java.text.SimpleDateFormat;
/**
* The server side implementation of the RPC service.
*/
@SuppressWarnings("serial")
public class AuthServiceImpl extends RemoteServiceServlet implements
AuthService {
public String doAuthenticate(String name, String surname,
String username, String password,
String email, String info){
String serverInfo = getServletContext().getServerInfo();
String userAgent =
getThreadLocalRequest().getHeader("User-Agent");
//jdbc part
/*
Connection con = null;
try {
Class.forName("com.mysql.jdbc.Driver").newInstance();
//out.println("<br>driver is ok");
String url = "jdbc:mysql://" + "localhost" + "/" +
"USERSDB" + "?";
String usernamedb = "root";
String passworddb = "";
con = (Connection) DriverManager.getConnection(url,
usernamedb, passworddb);
Statement st = con.createStatement();
ResultSet rs;
rs = st.executeQuery("SELECT username, password FROM
users");
boolean found = false;
while (rs.next()) {
usernamedb = rs.getString(1);
passworddb = rs.getString(2);
if (usernamedb.equals(username)) {
found = true;
break;
}
}
if (!found){
password = " a";
//create user
String sql = "INSERT INTO testusers(name, username,
password, info) VALUES(?, ?, ?, ?)";
PreparedStatement pstmt = con.prepareStatement(sql);
// Set the values
pstmt.setString(1, name);
pstmt.setString(2, username);
pstmt.setString(3, password);
pstmt.setString(4, info);
//Calendar calendar = new GregorianCalendar(); String
time = calendar.getTime().toString(); //Thu Jun 11 02:30:10 EEST 2009
//String time = new GregorianCalendar().getTime
().toString();
//pstmt.setString(5, time);
pstmt.execute();
}
}catch(ClassNotFoundException cnfe){
return(cnfe.toString());
} catch(SQLException sqle){
return(sqle.toString());
} catch(InstantiationException ie){
return(ie.toString());
}catch (IllegalAccessException iae) {
return(iae.toString());
}
*/
return "Hello, " + name + " " + surname + "!<br><br>Server
info: "
+ serverInfo
+ ".<br><br>Using:<br>" + userAgent + " Your
request was sent!";
}
}
when this part of code is executed without the jdbc part it executes
fine and the RPC method works ok.
When i execute the code as it is above i get these errors:
The server is running at http://localhost:1598/
19 Ιουν 2009 11:33:32 μμ
com.google.appengine.tools.development.ApiProxyLocalImpl log
SEVERE: [1245454412421000] javax.servlet.ServletContext log: Exception
while dispatching incoming RPC call
com.google.gwt.user.server.rpc.UnexpectedException: Service method
'public abstract java.lang.String
faceRecognition.client.AuthService.doAuthenticate
(java.lang.String,java.lang.String,java.lang.String,java.lang.String,java.lang.String,java.lang.String)'
threw an unexpected exception: java.lang.ExceptionInInitializerError
at com.google.gwt.user.server.rpc.RPC.encodeResponseForFailure
(RPC.java:360)
at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse
(RPC.java:546)
at com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall
(RemoteServiceServlet.java:166)
at com.google.gwt.user.server.rpc.RemoteServiceServlet.doPost
(RemoteServiceServlet.java:86)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:713)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:806)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:
487)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter
(ServletHandler.java:1093)
at
com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter
(TransactionCleanupFilter.java:43)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter
(ServletHandler.java:1084)
at org.mortbay.jetty.servlet.ServletHandler.handle
(ServletHandler.java:360)
at org.mortbay.jetty.security.SecurityHandler.handle
(SecurityHandler.java:216)
at org.mortbay.jetty.servlet.SessionHandler.handle
(SessionHandler.java:181)
at org.mortbay.jetty.handler.ContextHandler.handle
(ContextHandler.java:712)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:
405)
at com.google.apphosting.utils.jetty.DevAppEngineWebAppContext.handle
(DevAppEngineWebAppContext.java:54)
at org.mortbay.jetty.handler.HandlerWrapper.handle
(HandlerWrapper.java:139)
at com.google.appengine.tools.development.JettyContainerService
$ApiProxyHandler.handle(JettyContainerService.java:306)
at org.mortbay.jetty.handler.HandlerWrapper.handle
(HandlerWrapper.java:139)
at org.mortbay.jetty.Server.handle(Server.java:313)
at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:
506)
at org.mortbay.jetty.HttpConnection$RequestHandler.content
(HttpConnection.java:844)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:644)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:205)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:381)
at org.mortbay.io.nio.SelectChannelEndPoint.run
(SelectChannelEndPoint.java:396)
at org.mortbay.thread.BoundedThreadPool$PoolThread.run
(BoundedThreadPool.java:442)
Caused by: java.lang.ExceptionInInitializerError
at com.mysql.jdbc.NonRegisteringDriver.connect
(NonRegisteringDriver.java:282)
at java.sql.DriverManager.getConnection(DriverManager.java:582)
at java.sql.DriverManager.getConnection(DriverManager.java:185)
at faceRecognition.server.AuthServiceImpl.doAuthenticate
(AuthServiceImpl.java:37)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke
(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke
(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse
(RPC.java:527)
... 25 more
Caused by: java.security.AccessControlException: access denied
(java.lang.RuntimePermission modifyThreadGroup)
at java.security.AccessControlContext.checkPermission
(AccessControlContext.java:323)
at java.security.AccessController.checkPermission
(AccessController.java:546)
at java.lang.SecurityManager.checkPermission(SecurityManager.java:
532)
at com.google.appengine.tools.development.DevAppServerFactory
$CustomSecurityManager.checkPermission(DevAppServerFactory.java:122)
at com.google.appengine.tools.development.DevAppServerFactory
$CustomSecurityManager.checkAccess(DevAppServerFactory.java:149)
at java.lang.ThreadGroup.checkAccess(ThreadGroup.java:288)
at java.lang.Thread.init(Thread.java:332)
at java.lang.Thread.<init>(Thread.java:377)
at java.util.TimerThread.<init>(Timer.java:456)
at java.util.Timer.<init>(Timer.java:71)
at java.util.Timer.<init>(Timer.java:122)
at com.mysql.jdbc.ConnectionImpl.<clinit>(ConnectionImpl.java:208)
... 34 more
What's going on? I tried the same code with my jsp and it works fine
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