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Also ich versuche zu registrieren (einfügen) Datensatz aus JSP-Formular in die Datenbank (XAMPP, MySQL). Details sind wie folgt:Einfügen von Daten mit JSP (Eclipse) in die Datenbank (XAMPP, MySQL)
register.jsp
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
<form action = "RegisterController" method = "post">
<input type = "text" name = "email" placeholder = "Your e-mail"><br><br>
<input type = "text" name = "firstname" placeholder = "First name"><br><br>
<input type = "text" name = "lastname" placeholder = "Last name"><br><br>
<input type = "text" name = "address" placeholder = "Home address"><br><br>
<input type = "text" name = "phone" placeholder = "Your phone number"><br><br>
<input type = "password" name = "password"><br><br>
<input type = "submit" name = "submit" value = "Register">
</form>
</body>
</html>
RegisterController.java
package cms.com;
import java.io.IOException;
import java.io.PrintWriter;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Servlet implementation class RegisterController
*/
public class RegisterController extends HttpServlet {
private static final long serialVersionUID = 1L;
/**
* @see HttpServlet#HttpServlet()
*/
public RegisterController() {
super();
// TODO Auto-generated constructor stub
}
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
}
/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
try{
String email = request.getParameter("email");
String firstname = request.getParameter("firstname");
String lastname = request.getParameter("lastname");
String address = request.getParameter("address");
String phone = request.getParameter("phone");
String password = request.getParameter("password");
String sql = "insert into users(email,firstname,lastname,address,phone,password) values(?,?,?,?,?,?)";
Class.forName("com.mysql.jdbc.Driver");
Connection conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/cms","root","");
PreparedStatement pst = conn.prepareStatement(sql);
pst.setString(1,email);
pst.setString(2,firstname);
pst.setString(3,lastname);
pst.setString(4,address);
pst.setString(5, phone);
pst.setString(6, password);
pst.executeUpdate();
PrintWriter out = response.getWriter();
out.println("You have successfully registered!");
}
catch(ClassNotFoundException e){
e.printStackTrace();
}
catch(SQLException e){
e.printStackTrace();
}
}
}
Also, wenn ich auf localhost laufen und eingegebenen Daten, ist es nur eine leere Seite angezeigt und Die Tabelle hatte keinerlei Aktualisierung. Das Debugging zeigt keinen Fehler, ebenso wie während der Laufzeit. Ich benutze Eclipse Luna mit Dynamic Module 2.5 und Apache Tomcat 7.0.