myaction.java

来自「Struts入门学习经典实例教程」· Java 代码 · 共 55 行

package strutsdemo.actions;

import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionForm;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.ActionForward;
import strutsdemo.forms.myActionForm;
import org.apache.struts.action.Action;
import java.sql.*;

public class myAction
    extends Action {
  public ActionForward execute(ActionMapping actionMapping,
                               ActionForm actionForm,
                               HttpServletRequest servletRequest,
                               HttpServletResponse servletResponse) {
    java.sql.Connection con = this.getConn();
    Statement stmt = null;
    java.util.List list = new java.util.ArrayList();
    java.util.Map map = null;

    try {
      stmt = con.createStatement();
      java.sql.ResultSet rs = stmt.executeQuery("SELECT key,content FROM map");
      while (rs.next()) {
        map = new java.util.HashMap();
        map.put("key", rs.getString("key"));
        map.put("content", rs.getString("content"));
        list.add(map);

      }
    }
    catch (SQLException ex) {
      ex.printStackTrace();
    }
    servletRequest.setAttribute("data", list);
    return actionMapping.findForward("output");

  }

  private java.sql.Connection getConn() {
    java.sql.Connection con = null;
    try {
      Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
      con = java.sql.DriverManager.getConnection("jdbc:odbc:MSdb");

    }
    catch (Exception ex) {
      ex.printStackTrace();
    }
    return con;
  }
}