package connect;
import java.io.IOException;
import java.io.PrintWriter;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.Statement;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.sql.DataSource;
/**
* Servlet implementation class Connect3
*/
@WebServlet("/Connect4")
public class Connect4 extends HttpServlet {
private static final long serialVersionUID = 1L;
/**
* @see HttpServlet#HttpServlet()
*/
public Connect4() {
super();
// TODO Auto-generated constructor stub
}
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
// TODO Auto-generated method stub
response.getWriter().append("Served at: ").append(request.getContextPath());
// ContentTypeを設定
response.setContentType("text/html; charset=UTF-8");
// 出力用PrintWriterを取得
PrintWriter out = response.getWriter();
// 出力
out.println("<html>");
out.println("<head>");
out.println("<title>DB2 Connect Sample</title>");
out.println("</head>");
out.println("<body>");
out.println("<table border=\"1\">");
out.println("<tr><td>ID</td><td>DOC</td></tr>");
try {
Context ctx = new InitialContext();
//コネクションプールからデータソースを取得
DataSource ds = (DataSource)ctx.lookup("jdbc/db2");
Connection con = ds.getConnection();
Statement stmt = con.createStatement();
//rssテーブルを検索し、結果を表示
ResultSet rs = stmt.executeQuery("select id,name from COUNTRIES");
while(rs.next()) {
out.println("<tr><td>");
out.println(rs.getString("id"));
out.println("</td><td>");
out.println(rs.getString("name"));
out.println("</td></tr>");
}
rs.close();
stmt.close();
con.close();
} catch (Exception e) {
e.printStackTrace();
}
out.println("</table>");
out.println("</body>");
out.println("</html>");
}
/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
doGet(request, response);
}
}
