Hello, JDBC Type4(Oxygene) World!
Posted on 4月 18th, 2013 by cx20
JDBC Type4(Oxygene)
JDBC(Java Database Connectivity)は、Java 用のデータベース接続 API である。実装方法によりType1~4の4つのタイプが存在する。
Type4 は DBMS のクライアントライブラリを使用しない Pure Java の DBMS ドライバである。
以下は Oxygene による JDBC ライブラリの使用例となっている。
ソースコード(Oxygene + JDBC Type4 + SQL Server)
namespace hello;
interface
uses
java.sql.*;
type
Hello = class
public
class method Main(args: array of String);
end;
implementation
class method Hello.Main(args: array of String);
var
conn: Connection;
stmt: Statement;
rs: ResultSet;
begin
java.lang.Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
conn := DriverManager.getConnection("jdbc:sqlserver://;server=localhost", "sa", "P@ssW0rd");
stmt := conn.createStatement();
rs := stmt.executeQuery("SELECT 'Hello, JDBC Type4 World!' AS Message");
while rs.next() do begin
System.out.println( rs.getString(1) );
end;
rs.close();
stmt.Close();
conn.Close();
end;
end. |
namespace hello;
interface
uses
java.sql.*;
type
Hello = class
public
class method Main(args: array of String);
end;
implementation
class method Hello.Main(args: array of String);
var
conn: Connection;
stmt: Statement;
rs: ResultSet;
begin
java.lang.Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
conn := DriverManager.getConnection("jdbc:sqlserver://;server=localhost", "sa", "P@ssW0rd");
stmt := conn.createStatement();
rs := stmt.executeQuery("SELECT 'Hello, JDBC Type4 World!' AS Message");
while rs.next() do begin
System.out.println( rs.getString(1) );
end;
rs.close();
stmt.Close();
conn.Close();
end;
end.
コンパイル&実行方法(Oxygene + JDBC Type4 + SQL Server)
C:¥> oxygene Hello.pas -mode:Java
C:¥> java -Xbootclasspath/a:sqljdbc4.jar -jar hello.jar |
C:¥> oxygene Hello.pas -mode:Java
C:¥> java -Xbootclasspath/a:sqljdbc4.jar -jar hello.jar
ソースコード(Oxygene + JDBC Type4 + Oracle)
namespace hello;
interface
uses
java.sql.*;
type
Hello = class
public
class method Main(args: array of String);
end;
implementation
class method Hello.Main(args: array of String);
var
conn: Connection;
stmt: Statement;
rs: ResultSet;
begin
java.lang.Class.forName("oracle.jdbc.driver.OracleDriver");
conn := DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:orcl", "scott", "tiger");
stmt := conn.createStatement();
rs := stmt.executeQuery("SELECT 'Hello, JDBC Type4 World!' AS Message FROM DUAL");
while rs.next() do begin
System.out.println( rs.getString(1) );
end;
rs.close();
stmt.Close();
conn.Close();
end;
end. |
namespace hello;
interface
uses
java.sql.*;
type
Hello = class
public
class method Main(args: array of String);
end;
implementation
class method Hello.Main(args: array of String);
var
conn: Connection;
stmt: Statement;
rs: ResultSet;
begin
java.lang.Class.forName("oracle.jdbc.driver.OracleDriver");
conn := DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:orcl", "scott", "tiger");
stmt := conn.createStatement();
rs := stmt.executeQuery("SELECT 'Hello, JDBC Type4 World!' AS Message FROM DUAL");
while rs.next() do begin
System.out.println( rs.getString(1) );
end;
rs.close();
stmt.Close();
conn.Close();
end;
end.
コンパイル&実行方法(Oxygene + JDBC Type4 + Oracle)
C:¥> oxygene Hello.pas -mode:Java
C:¥> java -Xbootclasspath/a:ojdbc6.jar -jar hello.jar |
C:¥> oxygene Hello.pas -mode:Java
C:¥> java -Xbootclasspath/a:ojdbc6.jar -jar hello.jar
ソースコード(Oxygene + JDBC Type4 + MySQL)
namespace hello;
interface
uses
java.sql.*;
type
Hello = class
public
class method Main(args: array of String);
end;
implementation
class method Hello.Main(args: array of String);
var
conn: Connection;
stmt: Statement;
rs: ResultSet;
begin
java.lang.Class.forName("com.mysql.jdbc.Driver");
conn := DriverManager.getConnection("jdbc:mysql://localhost:3306", "root", "P@ssW0rd");
stmt := conn.createStatement();
rs := stmt.executeQuery("SELECT 'Hello, JDBC Type4 World!' AS Message");
while rs.next() do begin
System.out.println( rs.getString(1) );
end;
rs.close();
stmt.Close();
conn.Close();
end;
end. |
namespace hello;
interface
uses
java.sql.*;
type
Hello = class
public
class method Main(args: array of String);
end;
implementation
class method Hello.Main(args: array of String);
var
conn: Connection;
stmt: Statement;
rs: ResultSet;
begin
java.lang.Class.forName("com.mysql.jdbc.Driver");
conn := DriverManager.getConnection("jdbc:mysql://localhost:3306", "root", "P@ssW0rd");
stmt := conn.createStatement();
rs := stmt.executeQuery("SELECT 'Hello, JDBC Type4 World!' AS Message");
while rs.next() do begin
System.out.println( rs.getString(1) );
end;
rs.close();
stmt.Close();
conn.Close();
end;
end.
コンパイル&実行方法(Oxygene + JDBC Type4 + MySQL)
C:¥> oxygene Hello.pas -mode:Java
C:¥> java -Xbootclasspath/a:mysql-connector-java-5.1.22-bin.jar -jar hello.jar |
C:¥> oxygene Hello.pas -mode:Java
C:¥> java -Xbootclasspath/a:mysql-connector-java-5.1.22-bin.jar -jar hello.jar
実行結果
Tags: JDBC, JDBC Type4
Categories: JDBC, JDBC Type4, Oxygene