Student/register

hibernate-tutorial/src/com/luv2code/hibernate/demo/CreateStudentDemo.java

@@ -0,0 +1,49 @@
+package com.luv2code.hibernate.demo;
+
+import org.hibernate.Session;
+import org.hibernate.SessionFactory;
+import org.hibernate.cfg.Configuration;
+
+import com.luv2code.hibernate.demo.entity.Student;
+
+public class CreateStudentDemo {
+	public static void main(String[] args) {
+
+		for (int i = 0; i < 10; i++) {
+			System.out.print(sum(i) + " , ");
+		}
+
+		SessionFactory factory = new Configuration()
+				.configure("hibernate.cfg.xml")
+				.addAnnotatedClass(Student.class)
+				.buildSessionFactory();
+		// create session 
+		Session session = factory.getCurrentSession();
+
+		try {
+			// use the session object to save java object .
+			// create a student object 
+			// start a transaction 
+			// save the student object
+			// commit transaction 
+		} catch (Exception e) {
+			// TODO: handle exception
+		}finally {
+			factory.close();
+		}
+	}
+
+	public static int sum(int n) {
+		int a = 0,b =1,c=0;
+		if(n == 0)
+			return a;
+		else if(n == 1)
+			return b;
+		for (int i = 2; i <= n; i++) {
+			c = a+b;
+			a = b;
+			b = c;
+		}
+		return c;
+	}
+}

hibernate-tutorial/src/com/luv2code/hibernate/demo/entity/Student.java

@@ -0,0 +1,79 @@
+package com.luv2code.hibernate.demo.entity;
+
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import javax.persistence.Table;
+
+@Entity
+@Table(name="student")
+public class Student {
+
+	@Id
+	@GeneratedValue(strategy=GenerationType.IDENTITY)
+	@Column(name="id")
+	private int id;
+
+	@Column(name="first_name")
+	private String firstName;
+
+	@Column(name="last_name")
+	private String lastName;
+
+	@Column(name="email")
+	private String email;
+
+	public Student() {
+
+	}
+
+	public Student(String firstName, String lastName, String email) {
+		this.firstName = firstName;
+		this.lastName = lastName;
+		this.email = email;
+	}
+
+	public int getId() {
+		return id;
+	}
+
+	public void setId(int id) {
+		this.id = id;
+	}
+
+	public String getFirstName() {
+		return firstName;
+	}
+
+	public void setFirstName(String firstName) {
+		this.firstName = firstName;
+	}
+
+	public String getLastName() {
+		return lastName;
+	}
+
+	public void setLastName(String lastName) {
+		this.lastName = lastName;
+	}
+
+	public String getEmail() {
+		return email;
+	}
+
+	public void setEmail(String email) {
+		this.email = email;
+	}
+
+	@Override
+	public String toString() {
+		return "Student [id=" + id + ", firstName=" + firstName + ", lastName=" + lastName + ", email=" + email + "]";
+	}
+
+}
+
+
+
+

hibernate-tutorial/src/com/luv2code/jdbc/TestJdbc.java

@@ -0,0 +1,32 @@
+package com.luv2code.jdbc;
+
+import java.sql.Connection;
+import java.sql.DriverManager;
+
+public class TestJdbc {
+
+	public static void main(String[] args) {
+
+		String jdbcUrl = "jdbc:mysql://localhost:3307/hb_student_tracker?useSSL=false&serverTimezone=UTC";
+		String user = "root";
+		String pass = "";
+
+		try {
+			System.out.println("Connecting to database: " + jdbcUrl);
+
+			Connection myConn =
+					DriverManager.getConnection(jdbcUrl, user, pass);
+
+			System.out.println("Connection successful!!!");
+
+		}
+		catch (Exception exc) {
+			exc.printStackTrace();
+		}
+
+	}
+
+}
+
+
+

hibernate-tutorial/src/hibernate.cfg.xml

@@ -0,0 +1,29 @@
+<!DOCTYPE hibernate-configuration PUBLIC
+        "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
+        "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
+
+<hibernate-configuration>
+
+    <session-factory>
+
+        <!-- JDBC Database connection settings -->
+        <property name="connection.driver_class">com.mysql.cj.jdbc.Driver</property>
+        <property name="connection.url">jdbc:mysql://localhost:3307/hb_student_tracker?useSSL=false&amp;serverTimezone=UTC</property>
+        <property name="connection.username">root</property>
+        <property name="connection.password"></property>
+
+        <!-- JDBC connection pool settings ... using built-in test pool -->
+        <property name="connection.pool_size">1</property>
+
+        <!-- Select our SQL dialect -->
+        <property name="dialect">org.hibernate.dialect.MySQLDialect</property>
+
+        <!-- Echo the SQL to stdout -->
+        <property name="show_sql">true</property>
+
+		<!-- Set the current session context -->
+		<property name="current_session_context_class">thread</property>
+
+    </session-factory>
+
+</hibernate-configuration>

spring-mvc-demo/src/com/luv2code/springdemo/mvc/Student.java

@@ -1,9 +1,15 @@
 package com.luv2code.springdemo.mvc;
+
+import javax.validation.constraints.NotNull;
+import javax.validation.constraints.Size;
+
 public class Student {
 	private String firstName;
 	private String lastName;
 	private String country;
+	@NotNull
 	private String favoriteLanguage;
+	@Size(min = 1)
 	private String favoriteOs[];
 	public Student(String firstName, String lastName) {
 		this.firstName = firstName;

spring-mvc-demo/src/com/luv2code/springdemo/mvc/StudentController.java

@@ -2,9 +2,12 @@
 
 import java.util.Map;
 
+import javax.validation.Valid;
+
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.stereotype.Controller;
 import org.springframework.ui.Model;
+import org.springframework.validation.BindingResult;
 import org.springframework.web.bind.annotation.ModelAttribute;
 import org.springframework.web.bind.annotation.RequestMapping;
 
@@ -37,7 +40,9 @@ public String showFourm(Model model) {
 	}
 
 	@RequestMapping("/processForm")
-	public String processForm(@ModelAttribute("student") Student theStudent) {
+	public String processForm(@Valid @ModelAttribute("student") Student theStudent ,BindingResult result) {
+		if(result.hasErrors())
+			return "student-form";
 		return "student-confirmation";
 	}
 }

spring-mvc-demo/src/com/luv2code/springdemo/mvc/validation/CourseCode.java

@@ -12,7 +12,7 @@
 @Target({ElementType.METHOD,ElementType.FIELD})
 @Retention(RetentionPolicy.RUNTIME)
 public @interface CourseCode {
-	// define default corse code
+	// define default course code
 	public String value() default "LUV";
 	// define default error message
 	public String message() default "must start with LUV";

spring-mvc-demo/src/com/luv2code/springdemo/mvc/validation/CourseCodeValidattorConstraint.java

@@ -14,6 +14,7 @@ public void initialize(CourseCode constraintAnnotation) {
 	@Override
 	public boolean isValid(String theCode, ConstraintValidatorContext theConstraintValidatorContext) {
 		if(theCode == null) {
+
 			return true;
 		}else {
 			return theCode.toUpperCase().startsWith(coursePrefixes.toUpperCase());