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Witam Próbuję połączyć się z bazą danych mysql za pośrednictwem serwletu java za pomocą Eclipse i tomcat, ale popełniam następujący błąd: "WARN: ustanawianie połączenia SSL bez tożsamości serwera weryfikacja nie jest zalecana ".I dodano" useSSL = false? " do adresu URL połączenia, ale nadal pojawia się ten sam błąd. Jakieś sugestie? Kod serwletu to:WARN: Nawiązywanie połączenia SSL bez weryfikacji tożsamości serwera nie jest zalecane
package com.simpleWebApplication.servlet;
import java.io.IOException;
import java.io.PrintWriter;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
@WebServlet("/register")
public class RegisterServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
/**
* @see HttpServlet#HttpServlet()
*/
public RegisterServlet() {
super();
// TODO Auto-generated constructor stub
}
protected void doPost(HttpServletRequest request, HttpServletResponse
response)
throws ServletException, IOException {
doGet(request, response);
response.setContentType("text/html");
PrintWriter out = response.getWriter();
String idusers = request.getParameter("0");
String name = request.getParameter("name");
String surname = request.getParameter("surname");
String gender = request.getParameter("gender");
String birthdate = request.getParameter("birthdate");
String workAddress = request.getParameter("workAddress");
String homeAddress = request.getParameter("homeAddress");
try{
Class.forName("com.mysql.jdbc.Driver");
Connection con = DriverManager.getConnection("jdbc:mysql://localhost:3306/mysys?autoReconnect=true&useSSL=false","root","pass");
PreparedStatement ps = con.prepareStatement("insert into Users values(?,?,?,?,?,?)");
ps.setString(1, idusers);
ps.setString(2, name);
ps.setString(3, surname);
ps.setString(4, gender);
ps.setString(5, birthday);
ps.setString(6, workAddress);
ps.setString(7, homeAddress);
int i=ps.executeUpdate();
if(i>0)
{
out.println("You are sucessfully registered");
}
}
catch(Exception se)
{
se.printStackTrace();
}
}
}
i tutaj jest strona register.jsp, która jest połączona z serwletem.
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Register New User</title>
</head>
<body>
<form action="register" method="post">
<table align="center" bgcolor="#ffffff" border="1" width="70%">
<tr>
<td colspan="2" align="center">User Details </td>
</tr>
<tr>
<td>Name </td>
<td><input type="text" name="name" maxlength="25"></td>
</tr>
<tr>
<td>Surname </td>
<td><input type="text" name="surname" maxlength="40"></td>
</tr>
<tr>
<td>Gender </td>
<td><select>
<option value="male">Male</option>
<option value="female">Female</option>
</select></td>
</tr>
<tr>
<td>Birthdate </td>
<td><input type="date" name="birthdate" maxlength="30"></td>
</tr>
<tr>
<tr>
<td>Work Address </td>
<td><input type="text" name="workaddress" maxlength="30"></td>
</tr>
<tr>
<td>Home Address </td>
<td><input type="text" name="homeaddress" maxlength="30"></td>
</tr>
<td colspan="2" align="center"><input type="submit" value="Submit"></td>
</tr>
</table>
</form>
</body>
</html>
błąd stosu:
Wed Sep 28 08:58:53 EEST 2016 WARN: Establishing SSL connection without server's identity verification is not recommended. According to MySQL 5.5.45+, 5.6.26+ and 5.7.6+ requirements SSL connection must be established by default if explicit option isn't set. For compliance with existing applications not using SSL the verifyServerCertificate property is set to 'false'. You need either to explicitly disable SSL by setting useSSL=false, or set useSSL=true and provide truststore for server certificate verification.
java.sql.SQLException: Access denied for user 'username'@'localhost' (using password: YES)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:963)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3966)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3902)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:875)
at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1712)
at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1228)
at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2253)
at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2284)
at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2083)
at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:806)
at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:404)
at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:410)
at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:328)
at java.sql.DriverManager.getConnection(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
at com.simpleWebApplication.servlet.RegisterServlet.doPost(RegisterServlet.java:47)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:650)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:218)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:169)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:956)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:442)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1082)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:623)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:318)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Unknown Source)
Otrzymujesz to ostrzeżenie od czego? – EJP
Otrzymuję to ostrzeżenie po naciśnięciu przycisku przesyłania ze strony jsp, która jest połączona z serwletem. – grlouk
Otrzymujesz to ostrzeżenie (1) w logach serwera (2) na stronie przeglądarki (3) z okna podręcznego przeglądarki (4) innego? – EJP