src/main/java/com/system/controller/TeacherController.java

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package com.system.controller;

import com.system.exception.CustomException;
import com.system.po.*;
import com.system.service.*;
import org.apache.commons.io.FileUtils;
import org.apache.shiro.SecurityUtils;
import org.apache.shiro.subject.Subject;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import java.io.File;
import java.util.List;



@Controller
@RequestMapping(value = "/teacher")
public class TeacherController {

    @Resource(name = "teacherServiceImpl")
    private TeacherService teacherService;

    @Resource(name = "courseServiceImpl")
    private CourseService courseService;

    @Resource(name = "selectedCourseServiceImpl")
    private SelectedCourseService selectedCourseService;


    @Resource(name = "zuoyeServiceImpl")
    private com.system.service.ZuoyeService zuoyeService;

    @Resource(name = "datiServiceImpl")
    private DatiService datiService;

    // 显示我的课程
    @RequestMapping(value = "/showCourse")
    public String stuCourseShow(Model model) throws Exception {

        Subject subject = SecurityUtils.getSubject();
        String username = (String) subject.getPrincipal();

        List<CourseCustom> list = courseService.findByTeacherID(Integer.parseInt(username));
        for(CourseCustom courseCustom:list){
            courseCustom.setNopeople(courseCustom.getPeople()-selectedCourseService.countByCourseID(courseCustom.getCourseid()));
            courseCustom.setHaspeople(selectedCourseService.countByCourseID(courseCustom.getCourseid()));
        }
        model.addAttribute("courseList", list);

        return "teacher/showCourse";