//Created by MyEclipse Struts// XSL source (default): platform:/plugin/com.genuitec.eclipse.cross.easystruts.eclipse_4.0.1/xslt/JavaClass.xslpackage com.huang.actions;import java.util.ArrayList;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import org.apache.struts.action.Action;import org.apache.struts.action.ActionForm;import org.apache.struts.action.ActionForward;import org.apache.struts.action.ActionMapping;import com.huang.common.DB.DBtool;import com.huang.forms.AddCourseForm;public class AddCourseAction extends Action {	public ActionForward execute(		ActionMapping mapping,		ActionForm form,		HttpServletRequest request,		HttpServletResponse response) {		AddCourseForm addCourseForm = (AddCourseForm) form;				String index = (String)request.getParameter("index");				if(index.equals("first")) {			ArrayList list = DBtool.getDataList("tb_teacher",new String[]{"teacher_id","teacher_name"});			request.setAttribute("teacher",list);			return mapping.findForward("first");		}				if(index.equals("add")) {			String course_id = addCourseForm.getCourse_id();			String course_name = addCourseForm.getCourse_name();			String course_credit = addCourseForm.getCourse_credit();			String teacher_id = addCourseForm.getTeacher_id();						String sql = "insert into tb_course values('"+course_id+"','"+course_name+"',"+course_credit+",'"+teacher_id+"')";			DBtool.updateData(sql);			return mapping.findForward("success");		}		return null;	}}