package com.offcn.controller;
import java.io.File;
import java.util.List;
import java.util.UUID;
import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import javax.validation.Valid;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;
import com.offcn.pojo.Classes;
import com.offcn.pojo.Student;
import com.offcn.pojo.StudentExt;
import com.offcn.pojo.User;
import com.offcn.service.ClassesService;
import com.offcn.service.StudentService;
/**
 * <p>Company: offcn</p>
 * @author zgf
 * @date 2017年5月22日
 * @version 1.0
 */
@Controller
@RequestMapping("/cla")//用来处理请求地址映射的注解
public class ClassesController {
  @Resource
    ClassesService classesService;
  @Resource
  StudentService studentService;
   /*
     * 列表与分页Action
     */
    @RequestMapping("/list")
    //声明一个list方法，返回一个String类型
    public String list(Model model,@RequestParam(required=false,defaultValue="1") int pageNO){
        int size=3;
        model.addAttribute("size",size);
        model.addAttribute("pageNO",pageNO);
        model.addAttribute("count",classesService.getClassesCount());
        model.addAttribute("clalist", classesService.getClassPager(pageNO, size));
        return "class/list";
     }
    /*
     * 删除单个对象Action
     */
    @RequestMapping("/delete/{id}")
    public String delete(Model model,@PathVariable int id,@RequestParam(required=false,defaultValue="1") int pageNO,RedirectAttributes redirectAttributes){
        if(classesService.delete(id)>0)
        {
          //redirectAttributes:重定向之后还能带参数跳转
          //隐藏了参数，链接地址上不直接暴露，但是能且只能在重定向的 “页面” 获取message参数值。其原理就是放到session中，session在跳到页面后马上移除对象。
            redirectAttributes.addFlashAttribute("message", "删除成功！");
        }else{
            redirectAttributes.addFlashAttribute("message", "删除失败！");
        }
        return "redirect:/cla/list?pageNO="+pageNO;
    }
    /*
     * 删除多个对象Action
     */
    @RequestMapping("/deletes")
    public String deletes(Model model,@RequestParam int[] id,@RequestParam(required=false,defaultValue="1") int pageNO,RedirectAttributes redirectAttributes){
        //执行删除
      System.out.println("批量删除"+id.toString());
        int rows=classesService.deletes(id);
        if(rows>0)
        {
            redirectAttributes.addFlashAttribute("message", "删除"+rows+"行记录成功！");
        }else{
            redirectAttributes.addFlashAttribute("message", "删除失败！");
        }
        return "redirect:/cla/list?pageNO="+pageNO;
    }
    /*
     * 添加学生
     */
    @RequestMapping("/add")
    public String add(Model model){
        model.addAttribute("entity", new Classes());
        return "class/add";
    }
    /*
     * 添加保存
     */
    @RequestMapping("/addSave")
    //@ModelAttribute:绑定请求参数到指定对象 
    public String addSave(Model model,@ModelAttribute("entity") @Valid Classes entity,BindingResult bindingResult){
        //如果模型中存在错误
        if(bindingResult.hasErrors()){
           model.addAttribute("entity", entity);
             return "class/add";
        }else{
          classesService.insert(entity);
             return "redirect:/cla/list";    
        }
    }
    /*
     * 编辑
     */
    @RequestMapping("/edit/{id}")
    //@PathVariable可以用来映射URL中的占位符到目标方法的参数中
    public String edit(Model model,@PathVariable int id){
        model.addAttribute("entity", classesService.getCLassId(id));
        return "class/edit";
    }
    /*
     * 编辑保存
     */
    @RequestMapping("/editSave")
    //@Valid的参数后必须紧挨着一个BindingResult 参数
    //Spring验证的错误返回
    public String editSave(Model model,@ModelAttribute("entity") @Valid Classes entity,BindingResult bindingResult){
        //如果模型中存在错误
        if(bindingResult.hasErrors()){
           model.addAttribute("entity", entity);
             return "/class/edit";
        }else{
          classesService.update(entity);
            return "redirect:list";    
        }
    }
    @RequestMapping("search/{id}")
    public String search(@PathVariable int id,Model model) {
      List<StudentExt> slist=studentService.getStuByCid(id);
      model.addAttribute("slist", slist);
    return "class/stulist";
  }
    @RequestMapping("search1/{id}")
    public String search1(@PathVariable int id,Model model) {
      /*List<StudentExt> slist=studentService.getStuByCid(id);
      model.addAttribute("slist", slist);*/
      Classes classes=classesService.getStuByid(id);
      model.addAttribute("classes", classes);
    return "class/stulist1";
  }
}

package com.offcn.controller;
import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import javax.validation.Valid;
import org.springframework.http.HttpRequest;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;
import com.offcn.mapper.CtcMapper;
import com.offcn.pojo.Classes;
import com.offcn.pojo.Course;
import com.offcn.pojo.CtcKey;
import com.offcn.pojo.Teacher;
import com.offcn.pojo.User;
import com.offcn.service.ClassesService;
import com.offcn.service.CourseService;
import com.offcn.service.TeacherService;
import java.util.ArrayList;
import java.util.List;
/**
 * <p>Company: offcn</p>
 * @author zgf
 * @date 2017年5月22日
 * @version 1.0
 */
@Controller
@RequestMapping("/cou")
public class CourseController {
  @Resource
    CourseService courseService;
  @Resource
  TeacherService teacherService; 
  @Resource
  ClassesService classesService;
   /* @Resource
  CtcService ctcService;*/
    /* @Resource
     GradeService gradeService;*/
   /*
     * 列表与分页Action
     */
    @RequestMapping("/list")
    public String list(Model model,@RequestParam(required=false,defaultValue="1") int pageNO){
        int size=3;
        model.addAttribute("size",size);
        model.addAttribute("pageNO",pageNO);
        model.addAttribute("count",courseService.getCourseCount());
        model.addAttribute("coulist", courseService.getCoursePager(pageNO, size));
        return "course/list";
     }
    /*
     * 删除单个对象Action
     */
    @RequestMapping("/delete/{id}")
    public String delete(Model model,@PathVariable int id,@RequestParam(required=false,defaultValue="1") int pageNO,RedirectAttributes redirectAttributes){
        if(courseService.delete(id)>0)
        {
            redirectAttributes.addFlashAttribute("message", "删除成功！");
        }else{
            redirectAttributes.addFlashAttribute("message", "删除成功！");
        }
        return "redirect:/cou/list?pageNO="+pageNO;
    }
    /*
     * 删除多个对象Action
     */
    @RequestMapping("/deletes")
    public String deletes(Model model,@RequestParam int[] id,@RequestParam(required=false,defaultValue="1") int pageNO,RedirectAttributes redirectAttributes){
        //执行删除
      System.out.println("批量删除"+id.toString());
        int rows=courseService.deletes(id);
        if(rows>0)
        {
            redirectAttributes.addFlashAttribute("message", "删除"+rows+"行记录成功！");
        }else{
            redirectAttributes.addFlashAttribute("message", "删除失败！");
        }
        return "redirect:/cou/list?pageNO="+pageNO;
    }
    /*
     * 添加
     */
    @RequestMapping("/add")
    public String add(Model model){
        model.addAttribute("entity", new Course());
        return "course/add";
    }
    /*
     * 添加保存
     */
    @RequestMapping("/addSave")
    public String addSave(Model model,@ModelAttribute("entity") @Valid Course entity,BindingResult bindingResult){
        //如果模型中存在错误
        if(bindingResult.hasErrors()){
           model.addAttribute("entity", entity);
             return "course/add";
        }else{
          courseService.insert(entity);
             return "redirect:/cou/list";    
        }
    }
    /*
     * 编辑
     */
    @RequestMapping("/edit/{id}")
    public String edit(Model model,@PathVariable int id){
        model.addAttribute("entity", courseService.getCourseId(id));
        return "course/edit";
    }
    /*
     * 编辑保存
     */
    @RequestMapping("/editSave")
    public String editSave(Model model,@ModelAttribute("entity") @Valid Course entity,BindingResult bindingResult){
        //如果模型中存在错误
        if(bindingResult.hasErrors()){
           model.addAttribute("entity", entity);
             return "/course/edit";
        }else{
          courseService.update(entity);
            return "redirect:list";    
        }
    }
    //排课
   @RequestMapping("/setTeacher/{id}")
    public String setTeacher(Model model,@PathVariable int id){
      Course course=courseService.getCourseId(id);
      model.addAttribute("entity",course);
      List<Teacher> tlist=teacherService.getAllTeacher();
      List<Classes> clist=classesService.getAllClasses();
      model.addAttribute("tlist", tlist);
      model.addAttribute("clist", clist);
      return "course/setct";
    }
    @RequestMapping("editSavect")
    public String editSavect(Model model,@ModelAttribute("entity") Course entity,RedirectAttributes redirectAttributes){
      //Course course=entity;
      String classid=entity.getClasses();
      String[] classids=classid.split(",");
      List<CtcKey> ctclist=new ArrayList<CtcKey>();
      for(int i=0;i<classids.length;i++){
        CtcKey c=new CtcKey();
        c.setCouid(entity.getId());
        c.setClaid(Integer.parseInt(classids[i]));
        c.setTid(entity.getTeacher().getId());
        ctclist.add(c);
      }
      try{
        courseService.insertBatch(ctclist);
      }catch(Exception e){
        redirectAttributes.addFlashAttribute("msg", "排课存在冲突，请核对后重新选！");
      }
      return "redirect:/cou/list";
    }
    @RequestMapping("toChangePassword")
    public String toChangePassword(){
      return "course/changePassword";
    }
    @ResponseBody
    @RequestMapping("changePassword")
    public int changePassword(String password,String oldPass,int id,HttpServletRequest re){
      HttpSession session = re.getSession();
      User user = (User)session.getAttribute("user");
      if(user.getPassword().equals(oldPass)) {
        courseService.changePassword(password,id,user);
        return 1;
      }else
        return 2;
    }
}