Structured Text#19 REFACTORING

Structured Text#18 UNION

Structured Text#17 ALIAS

Structured Text#16 STRUCTURE

Structured Text#15 ENUMERATION

Structured Text#14 CONSTANT

Structured Text#13 CONTINUE in loop

Structured Text#12 REPEAT Loop

Structured Text#11 WHILE Loop

Structured Text#10 FOR Loop

Structured Text#09 Arrays

Structured Text#08 CASE statements

Structured Text#07 IF statements

Structured Text#06 Operators of the ST language

Structured Text#05 How a ST program executes

Structured Text#04 Identifiers and Variable declarations

Structured Text#03 Data types

CPP Essential#40 Array with characters and string

CPP Essential#39 Array as parameter to a function

CPP Essential#38 Array Multidimension

CPP Essential#37 Array more

CPP Essential#36 Array

CPP Essential#35 Nested loops

CPP Essential#34 Scope and visibility

CPP Essential#33 Function Overloading More

CPP Essential#32 Function Overloading

CPP Essential#31 Function example with parameters and return

CPP Essential#30 Function example with parameters no return

CPP Essential#29 Function example with no parameters no return

CPP Essential#28 Function Syntax

CPP Essential#27 Selection statement Switch

CPP Essential#26 Jump statement Continue

CPP Essential#25 Jump statement Break

CPP Essential#24 Iteration statement Do While Loop

CPP Essential#23 Iteration statement While Loop

CPP Essential#22 Iteration statement For Loop More

CPP Essential#21 Iteration statement For Loop

CPP Essential#20 Selection statement IF ELSEIF ELSE

CPP Essential#19 Selection statement IF ELSE

CPP Essential#18 Selection statement IF

CPP Essential#17 Statements and Flow Control

CPP Essential#16 Flash back 1

CPP Essential#15 Basic calculator

CPP Essential#14 Namespace

CPP Essential#13 Basic input and output

CPP Essential#12 Operators and operands

CPP Essential#11 Constants

CPP Essential#10 Compound type String

CPP Essential#9 Variables

CPP Essential#9 Variables

CPP Essential#8 Identifiers

CPP Essential#07 Primitive data types

CPP Essential#06 Comments

CPP Essential#05 Basic CPP program structure

CPP Essential#04 Create your first CPP program in Code Blocks

CPP Essential#03 some examples of IDE and Compilers for CPP

CPP Essential#02 How to wrtie a program

CPP Essential#01 Introduction

Structured Text#02 Hello World

Hardware Programming # 04 Codesys Installation

9-Spring Boot JPA Mysql Connection SOLVED

How to connect Spring Boot to Mysql using JPA SOLVED

application.properties

  
spring.datasource.url=jdbc:mysql://localhost:3306/springboot?autoReconnect=true
spring.datasource.username=springboot
spring.datasource.password=springboot
spring.jpa.generate-ddl=true

  
  

Student Entity in the Model

  package com.example.demo.model;

import java.io.Serializable;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.Table;



@Entity
@Table(name="student")
public class Student implements Serializable{
 
 private static final long serialVersionUID = -6899110682583120414L;

 @Id
 
    @Column(name="Stid")
 private int Stid;
 
    @Column(name="Name")
 private String Name;
    
    @Column(name="Programme")
 private String Programme;
 
 public Student() {
  //super();
 }

 
 public Student(int stid, String name, String programme) {
  super();
  Stid = stid;
  Name = name;
  Programme = programme;
 }

 

 @Override
 public String toString() {
  return "Student [Stid=" + Stid + ", Name=" + Name + ", Programme=" + Programme + "]";
 }
 
    
}

  

Student Repository

package com.example.demo.repository;

import org.springframework.data.repository.CrudRepository;

import com.example.demo.model.Student;

public interface StudentRepository extends CrudRepository {
   
}
  

Student Controller

   package com.example.demo.controller;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;

import com.example.demo.model.Student;
import com.example.demo.repository.StudentRepository;

@RestController
public class StudentController {

 @Autowired
 StudentRepository repository;
 
 @RequestMapping("/findall")
  @ResponseBody
 public String findall(){
  String result = "";
          for(Student student:repository.findAll()){
        result += " --- " +student.toString();
       }
 return result  ;
 }
 
 @RequestMapping("/findbystid")
  @ResponseBody
 public String findByStid(@RequestParam("stid") int stid){
  String result="";
           result=repository.findOne(stid).toString();
 return result  ;
 }
 
 @RequestMapping("/register")
 String register(Student student) {
  repository.save(new Student(10,"JPA","JPA Tut"));
  return "Student Registered";
 }

 
 
}
  

Main Class

package com.example.demo;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class HelloJpaMySql1Application {

 public static void main(String[] args) {
  SpringApplication.run(HelloJpaMySql1Application.class, args);
 }
}

  

This is just a trick, hope it paved your way out. 

How Write the name of all contents of a folder to a file in Powershell

Write the name of all contents of a folder to a file using powershell

$files = Get-ChildItem -Path 'D:\doc\' -Recurse |?{$_.PSIsContainer -eq $false -and $_.Extension -ne '.txt'  }

"Total : "+$files.Count+" files" | Out-File -Append 'D:\doc\MyFiles.txt'
ForEach($file in $files)
{
 $file.Name | Out-File -Append 'D:\doc\MyFiles.txt'  
}

  

This is just a trick, hope it paved your way out. 

powershell#07 Write the name of all contents of a folder to a file

powershell#06 Call ps1 scripts from a ps1 scripts

powershell#05 Add or Substract Times to Date

powershell#04 Add or Substract Years to Date

powershell#02 Add or Substract days to Date

powershell#01 Date Comparison in Powershell

Dev Tips#20 Quickly determine the number of Cores in your PC

Using Spring Boot and JDBC for Mysql Connection SOLVED

In this tutorial I share with you some snippets explained in this video tutorial


application.properties

  

server.port=9001
spring.datasource.url=jdbc:mysql://localhost:3306/springboot?autoReconnect=true
spring.datasource.username=springboot
spring.datasource.password=springboot
spring.datasource.platform=mysql

  
  

HelloMySql2Application

    package com.example.demo;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.ApplicationContext;

@SpringBootApplication
public class HelloMySql2Application {
 
 @Autowired
    StudentService  studentService;
 
 public static void main(String[] args) {
  //SpringApplication.run(HelloMySqlApplication.class, args);
  ApplicationContext context = SpringApplication.run(HelloMySql2Application.class, args);
  StudentService  studentService = context.getBean(StudentService.class);

   Student student = new Student();
   student.setStid(4);
   student.setName("I got it");
   student.setProgramme("Spring Booter");
   
   //Insert a student
   studentService.insertStudent(student);
   
   //Get student Stid = 1
   studentService.getStudentByStid(1);
   
   //Get all Students
   studentService.getAllStudents();
  
 }
}
  

Student

package com.example.demo;

public class Student {
   int Stid;
   String Name;
   String Programme;
   
public int getStid() {
 return Stid;
}
public void setStid(int stid) {
 Stid = stid;
}
public String getName() {
 return Name;
}
public void setName(String name) {
 Name = name;
}
public String getProgramme() {
 return Programme;
}
public void setProgramme(String programme) {
 Programme = programme;
}

@Override
public String toString() {
 return "Student [Stid=" + Stid + ", Name=" + Name + ", Programme=" + Programme + "]";
}
   
   
}

  

StudentDAO

 package com.example.demo;

import java.util.List;

public interface StudentDAO {

  void insertStudent(Student std);
  Student getStudentByStid(int stid);
  List getAllStudents();
}


  

StudentDAOImplementation

package com.example.demo;

import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;

import javax.annotation.PostConstruct;
import javax.sql.DataSource;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.jdbc.core.RowMapper;
import org.springframework.jdbc.core.support.JdbcDaoSupport;
import org.springframework.stereotype.Repository;

@Repository
public class StudentDAOImplementation extends JdbcDaoSupport implements StudentDAO {

 @Autowired 
    DataSource dataSource;
 
 @PostConstruct
 private void initialize(){
  setDataSource(dataSource);
 }
 
 
 @Override
 public void insertStudent(Student std) {
  String query = "INSERT INTO student (Stid, Name, Programme) VALUES (?, ?,?)" ;
  getJdbcTemplate().update(query, new Object[]{ std.getStid(), std.getName(), std.getProgramme()});
    
 }

 @Override
 public Student getStudentByStid(int stid) {
  String query = "SELECT * FROM student WHERE Stid = ?";
  return (Student)getJdbcTemplate().queryForObject(query, new Object[]{stid}, new RowMapper(){
   @Override
   public Student mapRow(ResultSet resultSet, int rwNumber) throws SQLException {
    Student std = new Student();
    std.setStid(resultSet.getInt("Stid"));
    std.setName(resultSet.getString("Name"));
    std.setProgramme(resultSet.getString("Programme"));
    return std;
   }
  });
 }

 @Override
 public List getAllStudents() {
  String query = "SELECT * FROM student";
  List> studentRow = getJdbcTemplate().queryForList(query);
  
  List students = new ArrayList();
  for(Map row:studentRow){
   Student student = new Student();
   student.setStid((int)row.get("Stid"));
   student.setName((String)row.get("Name"));
   student.setProgramme((String)row.get("Programme"));
   students.add(student);
  }
  
  return students;
 }

 
}
  

StudentService

package com.example.demo;

public interface StudentService {
 void insertStudent(Student emp);
 void getStudentByStid(int stid);
 void getAllStudents();
}

  

StudentServiceImplementation

 package com.example.demo;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

@Service
public class StudentServiceImplementation implements StudentService{

 @Autowired
    StudentDAO studentDAO;
 @Override
 public void insertStudent(Student std) {
       studentDAO.insertStudent(std);  
 }

 @Override
 public void getStudentByStid(int stid) {
          Student student = studentDAO.getStudentByStid(stid);  
       System.out.println(student);
 }

 @Override
 public void getAllStudents() {
      List students = studentDAO.getAllStudents();
       students.forEach(student -> System.out.println(student.toString()));
 }

}

  

8 - Spring Boot JDBC Mysql Connection SOLVED

DBA#02 Check SQL Server Edition Version Properties

DBA#01 Strategy to Backup and Restore many databases in SQL Server Part1

Hardware Programming # 03 Bit Manipulation in SQL

Dev Tips#19 NodeJs By bypass proxy within the corporate network

Dev Tips#18 PURE OPP vs COMPLETE OOP