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text/src/web/servlet/cdc/CDCListServlet.java

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2.0 KiB

package web.servlet.cdc;
import domain.Admin;
import domain.CDC;
import domain.Student;
import domain.Teacher;
import service.CDCService;
import service.StudentService;
import service.impl.CDCServiceImpl;
import service.impl.StudentServiceImpl;
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.servlet.http.HttpSession;
import java.io.IOException;
import java.util.List;
@WebServlet("/cdcListServlet")
public class CDCListServlet extends HttpServlet {
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
request.setCharacterEncoding("utf-8");
//调用StudentService完成查询
CDCService service = new CDCServiceImpl();
List<CDC> cdcs = service.findAll();
//将list存入request域
request.setAttribute("cdcs",cdcs);
HttpSession session = request.getSession();
Student student= (Student)session.getAttribute("student");
Admin admin= (Admin)session.getAttribute("admin");
Teacher teacher= (Teacher)session.getAttribute("teacher");
if (student != null && admin == null && teacher == null) {
request.getRequestDispatcher("/WEB-INF/student/sCDCList.jsp").forward(request, response);
} else if (admin != null && student == null && teacher == null) {
request.getRequestDispatcher("/WEB-INF/admin/aCDCList.jsp").forward(request, response);
} else if (teacher != null && admin == null && student == null) {
request.getRequestDispatcher("/WEB-INF/teacher/tCDCList.jsp").forward(request, response);
} else {
request.getRequestDispatcher("error.jsp").forward(request, response);
}
}
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
this.doPost(request,response);
}
}