7
हैलो मैं ग्रहण और टोमकैट का उपयोग कर जावा सर्वलेट के माध्यम से एक MySQL डेटाबेस से कनेक्ट करने का प्रयास कर रहा हूं, लेकिन मुझे निम्न त्रुटि होती है: "चेतावनी: सर्वर की पहचान के बिना SSL कनेक्शन स्थापित करना सत्यापन की अनुशंसा नहीं की जाती है "मैंने जोड़ा" useSSL = false? " कनेक्शन यूआरएल के लिए लेकिन अभी भी एक ही त्रुटि मिलती है। कोई सुझाव? सर्वलेट का कोड है:चेतावनी: सर्वर के पहचान सत्यापन के बिना SSL कनेक्शन स्थापित करने की अनुशंसा नहीं की जाती है
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();
}
}
}
और यहां रजिस्टर.जेएसपी पृष्ठ है जो सर्वलेट से जुड़ा हुआ है।
<%@ 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>
ढेर त्रुटि:
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)
आपको यह चेतावनी क्या है? – EJP
जब मैं सर्वलेट से जुड़ा हुआ jsp पेज से सबमिट बटन दबाता हूं तो मुझे यह चेतावनी मिलती है। – grlouk
आपको ब्राउजर पेज (3) पर ब्राउजर पॉपअप (4) से सर्वर लॉग (2) में यह चेतावनी (1) मिलती है? – EJP