src/main/java/cn/lemon/lib/controller/StudentController.java

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package cn.lemon.lib.controller;

import cn.lemon.lib.entity.Grade;
import cn.lemon.lib.entity.Student;
import cn.lemon.lib.service.GradeService;
import cn.lemon.lib.service.StudentService;
import cn.lemon.lib.vo.ResultVO;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.*;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;

@Controller
@RequestMapping("/user/student")
@Slf4j
public class StudentController {

    @Autowired
    GradeService gradeService;

    @Autowired
    StudentService studentService;

    @GetMapping("/index.html")
    public String toStudentPage(Model model) {

        List<Grade> gradeList = gradeService.getGradeList();
        model.addAttribute("gradeList",gradeList);
        return "/user/student/index.html";
    }

    /**
     * 添加学生页面
     * */
    @GetMapping("/add.html")
    public String toMenuAddPage(Model model, @RequestParam(value = "studentId", defaultValue = "0") Integer studentId) {
        // 初始化班级下拉框
        List<Grade> gradeList = gradeService.getGradeList();
        model.addAttribute("gradeList",gradeList);
        Student student = new Student();
        if (studentId != 0) {
            student = studentService.getStudentById(studentId);
        }
        model.addAttribute("student",student);
        return "/user/student/add.html";
    }

    /**
     * 获取所有学生
     * */
    @GetMapping
    @ResponseBody
    public ResultVO getStudentList(@RequestParam(value = "page", defaultValue = "1") Integer page,
                                   @RequestParam(value = "limit", defaultValue = "10") Integer limit,
                                   @RequestParam(value = "gradeId", defaultValue = "0") Integer gradeId) {