src/main/java/com/gxuwz/jyd/controller/SysClassesController.java

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package com.gxuwz.jyd.controller;


import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
import com.gxuwz.jyd.pojo.SysClasses;
import com.gxuwz.jyd.pojo.SysDepartment;
import com.gxuwz.jyd.service.SysClassesService;
import com.gxuwz.jyd.service.SysDepartmentService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
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.RestController;

import javax.servlet.http.HttpServletRequest;
import java.util.List;

/**
 * <p>
 * 班级表 前端控制器
 * </p>
 *
 * @author jyd
 * @since 2021-05-05
 */
@Controller
@RequestMapping("/class")
public class SysClassesController {

    @Autowired
    private SysClassesService classesService;
    @Autowired
    private SysDepartmentService departmentService;

    // 分页 + 模糊查询
    @RequestMapping("/queryClassPageByName")
    public String queryClassPageByName(HttpServletRequest request, Model model,
                                       @RequestParam(required = false,defaultValue="1",value="pageNum")Integer pageNum,
                                       @RequestParam(defaultValue="5",value="pageSize")Integer pageSize){
        String className = request.getParameter("className");
        if(pageNum == null){
            pageNum = 1;   //设置默认当前页
        }
        if(pageNum <= 0){
            pageNum = 1;
        }
        if(pageSize == null){
            pageSize = 5;    //设置默认每页显示的数据数
        }
        PageHelper.startPage(pageNum,pageSize);
        PageInfo<SysClasses> pageInfo = classesService.queryClassPageByName(pageNum, pageSize, className);
        model.addAttribute("pageInfo",pageInfo);
        return "page/instructor/class/class_list";

    }