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Setup Development Environment

Overview

  • Must have the Java Development Kit (JDK) installed.
  • Java Application Server: Tomcat
  • Java Integrated Development Environment (IDE): Eclipse
  • Database Server: MySQL


Apache Tomcat

  • Tomcat 10 was released to suppoert Jakarta EE 9. The breaking change for Java EE apps is that it renamed packages javax.* to jakarta.*.
  • Spring 5 currently doesn't support the new package renaming Jakarta EE 9.
  • Use Tomcat 9 for Spring 5 Applications. (Check and track the issues #25354)
  • Download and install Tomcat 9 from Tomcat 9 Software Downloads.
  • After installation, visit http://localhost:8080 for verification.
  • We can start/stop the Tomcat server from services manager in Windows.


Eclipse IDE

  • Download and install Eclipse IDE for Java EE Developers from Eclipse IDE Packages.
  • Connect Eclipse and Tomcat:
    1. Move down to the bottom section and click the "Servers" tab.
    2. Click "No servers are available. Click this link to create a new server...".
    3. Select "Tomcat v9.0 Server" and click "Next" button.
    4. Select the Tomcat Installation folder e.g. "C:\Program Files\Apache Software Foundation\Tomcat 9.0".
    5. Click "Next" and then "Finish" button.
    6. Now, there is "Tomcat v9.0 Server at localhost" shown in the "Servers" tab.
  • Setup Perspective by clicking [Winodws] -> [Perspective] -> [Open Perspective] -> [Java].


MySQL

  • Download and install MySQL from MySQL Community Server Downloads.
    1. Keep the "Developer Default" and click [Next].
    2. Check requirements and click [Next].
    3. Download and then click [Execute] to install products.
    4. Keep network settings as default.
  • Setup database table by loading and running the SQL files.
    1. [FILE] Create a new MySQL user for our application.
    2. [FILE] Create a new database student.


First Project (spring-demo-one)

Download Spring 5 JAR Files

  1. Create project by clicking [File] -> [New] -> [Java Project].
    • Project name: spring-demo-one.
    • Click "Don't Create" in the dialog for creating module-info.java.
  2. Add library folder named lib by right clicking [spring-demo-one] (Project Name) -> [New] -> [Folder].
  3. Visit Spring Download and choose [Artifactory] -> [Artifacts].
  4. Browse the path libs-release > org > springframework > spring.
  5. Download the lastest version of spring-5.x.x-dist.zip.
  6. Unzip and copy all the /lib/*.jar files to the project's /lib directory.

Add JAR Files to Java Build Path

  1. Edit project properties by right clicking [spring-demo-one] (Project Name) -> [Properties].
  2. Select [Java Build Path] and click the [Libraries] tab.
  3. Select [Classpath] and click [Add JARs].
  4. Select all the *.jar files in the /lib directory.
  5. Click [Close and Apploy].


Spring MVC Project (spring-mvc-demo)

Create Project and Change Perspective

  1. Change Perspective by clicking [Winodws] -> [Perspective] -> [Open Perspective] -> [Other]
    • Select [Java EE (default)] and click [Open].
  2. Create project by clicking [File] -> [New] -> [Dynamic Web Project].
    • Project name: spring-mvc-demo.
    • Dynamic web module version: 3.0.
    • Remove the default src/main/java and add folder named src.
    • Content directory: WebContent.

Download and Add Spring JAR Files.

  1. Download the lastest version of spring-5.x.x-dist.zip from Spring Download.
  2. Unzip and copy all the /lib/*.jar files to the project's WebContent/WEB-INF/lib directory.
  3. Copy javax.servlet.jsp.jstl-1.2.1.jar and javax.servlet.jsp.jstl-api-1.2.1.jar to the project's WebContent/WEB-INF/lib directory.

Setup Config Files

  1. Copy spring-mvc-demo-servlet.xml and web.xml to the project's WebContent/WEB-INF directory.
  2. Create the WebContent/WEB-INF/view/ folder since we define the Spring MVC view resolver with <property name="prefix" value="/WEB-INF/view/" />.

Hibernate Project (hibernate-tutorial)

Download Hibernate Files and MySQL JDBC

  1. Create project by clicking [File] -> [New] -> [Java Project].
    • Project name: hibernate-tutorial.
    • Click "Don't Create" in the dialog for creating module-info.java.
  2. Add library folder named lib by right clicking [hibernate-tutorial] (Project Name) -> [New] -> [Folder].
  3. Download the latest version of Hibernate from Hibernate ORM
  4. Unzip and copy all the /lib/required/*.jar files to the project's /lib directory.
  5. Download the MySQL JDBC Driver from MySQL Download Connector/J.
    • Select Operating System with "Platform Independent".
    • Download the ZIP archive file.
  6. Unzip and copy the mysql-connector-java-*-bin.jar files to the project's /lib directory.

Add JAR Files to Java Build Path

  1. Edit project properties by right clicking [spring-demo-one] (Project Name) -> [Properties].
  2. Select [Java Build Path] and click the [Libraries] tab.
  3. Click [Add JARs].
  4. Select all the *.jar files in the /lib directory.
  5. Click [Close and Apploy].

Testing JDBC Connection

  1. Create new package named com.luv2code.jdbc.
  2. Create new class named TestJdbc with following code under the package.
  3. Run for testing JDBC connection.
package com.luv2code.jdbc;

public class TestJdbc {
    public static void main(String[] args) {
        String jdbcUrl = "jdbc:mysql://localhost:3306/hb_student_tracker?useSSL=false&serverTimezone=UTC";
        String user = "hbstudent";
        String pass = "hbstudent";

        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();
        }
    }
}

Add Hibernate Configuration

We can also setup the connection information in the Hibernate config file hibernate.cfg.xml:

<!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:3306/hb_student_tracker?useSSL=false&amp;serverTimezone=UTC</property>
        <property name="connection.username">hbstudent</property>
        <property name="connection.password">hbstudent</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>