updated myself

pom.xml

@@ -50,10 +50,11 @@
 	    <artifactId>thymeleaf-layout-dialect</artifactId>
 	    
 	</dependency>
-	<!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java -->
+	<!-- https://mvnrepository.com/artifact/postgresql/postgresql -->
 	<dependency>
-	    <groupId>mysql</groupId>
-	    <artifactId>mysql-connector-java</artifactId>
+		<groupId>org.postgresql</groupId>
+		<artifactId>postgresql</artifactId>
+		<scope>runtime</scope>
 	</dependency>
 	
 	<!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-data-jpa -->

src/main/java/com/chantha/springdemo/model/Food.java

@@ -1,14 +1,13 @@
 package com.chantha.springdemo.model;
 
-import javax.persistence.Entity;
-import javax.persistence.Id;
-import javax.persistence.Table;
+import javax.persistence.*;
 
 @Entity
 @Table(name="tbfood")
 public class Food {
 
 	@Id
+	@GeneratedValue(strategy = GenerationType.AUTO)
 	private long id;
 	public Food() {
 		super();

src/main/resources/application.properties

@@ -1,7 +1,8 @@
 spring.thymeleaf.cache=false
 spring.jpa.hibernate.ddl-auto=update
-spring.datasource.url=jdbc:mysql://${MYSQL_HOST:localhost}:3309/dbfood?createDatabaseIfNotExist=true&allowPublicKeyRetrieval=true&useSSL=false
-spring.datasource.username=root
-spring.datasource.password=root
+spring.datasource.url=jdbc:postgresql://localhost:5432/dbfoof
+spring.datasource.username=postgres
+spring.datasource.password=postgres
 spring.jpa.open-in-view=true
-server.servlet.session.tracking-modes=cookie
+server.port=8010
+server.servlet.session.tracking-modes=cookie