?? updatecourseaction.java
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//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 java.util.HashMap;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.UpdateCourseForm;public class UpdateCourseAction extends Action { public ActionForward execute( ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) { UpdateCourseForm updateCourseForm = (UpdateCourseForm) form; // TODO Auto-generated method stub String index = (String)request.getParameter("index"); if(index.equals("first")) { String course_id = (String)request.getParameter("id"); ArrayList list = DBtool.getDataList("tb_course",new String[]{"course_name","course_credit","teacher_id"},"course_id='"+course_id+"'"); String course_name = ((HashMap)list.get(0)).get("course_name").toString(); String course_credit = ((HashMap)list.get(0)).get("course_credit").toString(); String teacher_id = ((HashMap)list.get(0)).get("teacher_id").toString(); request.setAttribute("course_name",course_name); request.setAttribute("course_id",course_id); request.setAttribute("course_credit",course_credit); request.setAttribute("teacher_id",teacher_id); ArrayList list2 = DBtool.getDataList("tb_teacher",new String[]{"teacher_id","teacher_name"}); request.setAttribute("teacher",list2); return mapping.findForward("first"); } if(index.equals("update")) { String course_id = (String)request.getParameter("id"); String course_credit = updateCourseForm.getCourse_credit(); String course_name = updateCourseForm.getCourse_name(); String teacher_id = updateCourseForm.getTeacher_id(); String sql = "update tb_course set course_name = '"+course_name+"' , course_credit = '"+course_credit+"',teacher_id='"+teacher_id+"' where course_id = '"+course_id+"'"; DBtool.updateData(sql); return mapping.findForward("success"); } return null; }}
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