Hello, JDBC Type4 World!
Posted on 4月 6th, 2012 by cx20
JDBC Type4
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。
ソースコード（Java + JDBC Type4 + SQL Server）
import java.sql.*;
class Hello {
public static void main( String[] args ) throws Exception {
Class.forName ("com.microsoft.sqlserver.jdbc.SQLServerDriver");
Connection conn = DriverManager.getConnection("jdbc:sqlserver://;serverName=localhost", "sa", "P@ssW0rd");
Statement stmt = conn.createStatement();
ResultSet rs = stmt.executeQuery("SELECT 'Hello, JDBC Type4 World!' AS Message");
while ( rs.next() ) {
System.out.println( rs.getString(1) );
}
rs.close();
stmt.close();
conn.close();
}
} |
import java.sql.*;
class Hello {
public static void main( String[] args ) throws Exception {
Class.forName ("com.microsoft.sqlserver.jdbc.SQLServerDriver");
Connection conn = DriverManager.getConnection("jdbc:sqlserver://;serverName=localhost", "sa", "P@ssW0rd");
Statement stmt = conn.createStatement();
ResultSet rs = stmt.executeQuery("SELECT 'Hello, JDBC Type4 World!' AS Message");
while ( rs.next() ) {
System.out.println( rs.getString(1) );
}
rs.close();
stmt.close();
conn.close();
}
}
コンパイル＆実行方法（Java + JDBC Type4 + SQL Server）
C:¥> javac Hello.java
C:¥> java -cp "sqljdbc4.jar;." Hello |
C:¥> javac Hello.java
C:¥> java -cp "sqljdbc4.jar;." Hello
ソースコード（Java + JDBC Type4 + Oracle）
import java.sql.*;
class Hello {
public static void main( String[] args ) throws Exception {
Class.forName ("oracle.jdbc.driver.OracleDriver");
Connection conn = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:orcl", "scott", "tiger");
Statement stmt = conn.createStatement();
ResultSet rs = stmt.executeQuery("SELECT 'Hello, JDBC Type4 World!' AS Message FROM DUAL");
while ( rs.next() ) {
System.out.println( rs.getString(1) );
}
rs.close();
stmt.close();
conn.close();
}
} |
import java.sql.*;
class Hello {
public static void main( String[] args ) throws Exception {
Class.forName ("oracle.jdbc.driver.OracleDriver");
Connection conn = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:orcl", "scott", "tiger");
Statement stmt = conn.createStatement();
ResultSet rs = stmt.executeQuery("SELECT 'Hello, JDBC Type4 World!' AS Message FROM DUAL");
while ( rs.next() ) {
System.out.println( rs.getString(1) );
}
rs.close();
stmt.close();
conn.close();
}
}
コンパイル＆実行方法（Java + JDBC Type4 + Oracle）
C:¥> javac Hello.java
C:¥> java -cp "ojdbc6.jar;." Hello |
C:¥> javac Hello.java
C:¥> java -cp "ojdbc6.jar;." Hello
ソースコード（Java + JDBC Type4 + MySQL）
import java.sql.*;
class Hello {
public static void main( String[] args ) throws Exception {
Class.forName ("com.mysql.jdbc.Driver");
Connection conn = DriverManager.getConnection("jdbc:mysql://localhost:3306", "root", "P@ssW0rd");
Statement stmt = conn.createStatement();
ResultSet rs = stmt.executeQuery("SELECT 'Hello, JDBC Type4 World!' AS Message");
while ( rs.next() ) {
System.out.println( rs.getString(1) );
}
rs.close();
stmt.close();
conn.close();
}
} |
import java.sql.*;
class Hello {
public static void main( String[] args ) throws Exception {
Class.forName ("com.mysql.jdbc.Driver");
Connection conn = DriverManager.getConnection("jdbc:mysql://localhost:3306", "root", "P@ssW0rd");
Statement stmt = conn.createStatement();
ResultSet rs = stmt.executeQuery("SELECT 'Hello, JDBC Type4 World!' AS Message");
while ( rs.next() ) {
System.out.println( rs.getString(1) );
}
rs.close();
stmt.close();
conn.close();
}
}
コンパイル＆実行方法（Java + JDBC Type4 + MySQL）
C:¥> javac Hello.java
C:¥> java -cp "mysql-connector-java-5.1.22-bin.jar;." Hello |
C:¥> javac Hello.java
C:¥> java -cp "mysql-connector-java-5.1.22-bin.jar;." Hello
実行結果
Tags: JDBC, JDBC Type4
Categories: Java, JDBC, JDBC Type4, library, SQL
