JDBC_Sample.java
import java.io.*;
import java.sql.*;
import javax.servlet.*;
import javax.servlet.http.*;
public
class JDBC_Sample extends HttpServlet {
public void doGet (HttpServletRequest req, HttpServletResponse res)
throws ServletException, IOException
{
res.setContentType( "text/html; charset=euc-jp" );
ServletOutputStream out = res.getOutputStream();
out.println("<html>");
out.println("<head><title>JRun の JDBC サンプル</title></head>");
out.println("<body>");
out.println("<h1>JRun の JDBC サンプル</h1>");
try {
try {
Class.forName("jdbc.idbDriver");
}
catch (Exception e)
{
out.println( e.getMessage() + "\n 例外のないクラスです。");
}
Connection conn1 = DriverManager.getConnection("jdbc:idb:./services/jws/htdocs/cfanywhere/db/sample.prp","","");
Statement stmt1 = conn1.createStatement();
ResultSet rs1 = stmt1.executeQuery("SELECT * FROM employee_table");
while (rs1.next())
{
out.print( rs1.getInt( "ID" ) + ", ");
out.print( rs1.getString( "FIRSTNAME" ) + ", ");
out.println( rs1.getString( "姓" ) + "<BR>" );
}
DatabaseMetaData dbmd1 = conn1.getMetaData();
out.println( "<P>\n接続先: " + dbmd1.getDatabaseProductName());
out.println( "<P>データベースのバージョン番号: " + dbmd1.getDatabaseProductVersion());
out.println( "<P>現在のログイン名: " + dbmd1.getUserName() + "<P>");
ResultSetMetaData rsmd1 = rs1.getMetaData();
for( int i=1; i<=rsmd1.getColumnCount(); i++)
{
out.println( "欄 " + i + " 名前: " + rsmd1.getColumnName(i) + "<BR>" );
out.println( "欄 " + i + " サイズ: " + rsmd1.getColumnDisplaySize(i) + "<BR>" );
out.println( "欄 " + i + " SQL タイプ: " + rsmd1.getColumnType(i) + "<P>" );
}
stmt1.close();
conn1.close();
}
catch( SQLException exception )
{
out.println( "\n SQL 例外 -- " + exception.getMessage() + "\n" );
}
out.println("</body></html>");
}
public String getServletInfo() {
return "Create a page that says <i>Hello World</i> and send it back";
}
}