BAEL-6674 Added code for mybatis sqlscript (#14487)

mybatis/pom.xml

@@ -18,9 +18,16 @@
             <artifactId>mybatis</artifactId>
             <version>${mybatis.version}</version>
         </dependency>
+        <dependency>
+            <groupId>com.h2database</groupId>
+            <artifactId>h2</artifactId>
+            <version>${h2database.version}</version>
+
+        </dependency>
     </dependencies>
 
     <properties>
+        <h2database.version>2.2.220</h2database.version>
         <mybatis.version>3.2.2</mybatis.version>
     </properties>
 

mybatis/src/main/java/com/baeldung/mybatis_sqlscript/Main.java

@@ -0,0 +1,118 @@
+package org.baeldung.mybatis_sqlscript;
+
+import org.apache.ibatis.jdbc.ScriptRunner;
+
+import java.io.BufferedReader;
+import java.io.FileNotFoundException;
+import java.io.FileReader;
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.sql.*;
+import java.util.List;
+import java.util.Scanner;
+
+
+public class Main {
+    // JDBC driver name and database URL
+    static final String JDBC_DRIVER = "org.h2.Driver";
+    static final String DB_URL = "jdbc:h2:mem:testDB";
+
+    //  Database credentials
+    static final String USER = "sa";
+    static final String PASS = "";
+    private static Connection conn;
+    private static Statement stmt;
+
+    public static void main(String[] args){
+        try {
+            //Register JDBC driver
+            Class.forName(JDBC_DRIVER);
+
+            //Open a connection
+            System.out.println("Connecting to database...");
+            conn = DriverManager.getConnection(DB_URL, USER, PASS);
+            stmt = conn.createStatement();
+        }
+        catch(Exception e)
+        {
+            //Handle errors for Class.forName
+            e.printStackTrace();
+        }
+
+        try {
+            Scanner sc = new Scanner(System.in);
+            System.out.println("Enter full path of the file: ");
+            String filePath= sc.next();
+            Path path = Paths.get(filePath);
+
+            System.out.println("Press 1: Execute SQL Script Using Plain Java: ");
+            System.out.println("Press 2: Execute SQL Script Using Apache iBatis: ");
+            List<String> sqlLines=Files.readAllLines(path);
+            int choice = sc.nextInt();
+
+            switch (choice)
+            {
+                case 1:
+                    // Running SQL Script using Plain Java
+                    for (String sql : sqlLines) {
+                        System.out.println("Query: " + sql);
+
+                        if (sql.contains("SELECT")) {
+                            ResultSet rs = stmt.executeQuery(sql);
+                            System.out.print("ID" + "\t" + "Name" + "\t" + "Surname" + "\t" + "Age");
+                            System.out.println("");
+                            // Extract data from result set
+                            while (rs.next()) {
+                                // Retrieve by column name
+                                int id = rs.getRow();
+                                int age = rs.getInt("age");
+                                String name = rs.getString("name");
+                                String surname = rs.getString("surname");
+
+                                // Display values
+                                System.out.print(id + "\t" + name + "\t" + surname + "\t" + age);
+                                System.out.println("");
+                            }
+                        }
+                        else
+                            stmt.execute(sql);
+                    }
+
+                    break;
+
+                case 2:
+                    ScriptRunner scriptExecutor = new ScriptRunner(conn);
+                    BufferedReader reader = new BufferedReader(new FileReader(filePath));
+                    scriptExecutor.runScript(reader);
+                    reader.close();
+                    break;
+
+
+
+
+            }
+
+
+
+        }
+        catch(SQLException se)
+        {
+            //Handle errors for JDBC
+            se.printStackTrace();
+        } catch(Exception e)
+        {
+            //Handle errors for Class.forName
+            e.printStackTrace();
+        }
+        System.out.println("Reached End of Code!");
+    }
+
+}
+
+
+
+
+
+

mybatis/src/main/resources/script.sql

@@ -0,0 +1,10 @@
+CREATE TABLE CUSTOMER (id number, name varchar(20), surname varchar(20), age number);
+INSERT INTO CUSTOMER VALUES (1, 'John', 'Doe', 25);
+INSERT INTO CUSTOMER VALUES (2, 'Jill', 'Johnson', 18);
+INSERT INTO CUSTOMER VALUES (3, 'Jake', 'Peralta', 29);
+INSERT INTO CUSTOMER VALUES (4, 'Jack', 'Ryan', 35);
+UPDATE CUSTOMER SET AGE = 19 WHERE name = 'Jake';
+SELECT * FROM CUSTOMER;
+DELETE FROM CUSTOMER WHERE name='John';
+SELECT * FROM CUSTOMER ORDER BY NAME;
+SELECT * FROM CUSTOMER WHERE AGE > 18;