springboot-jQery-增删改查分页

主要写controller层和html页面

因为其余层都是用EasyCode生成的

目录

一、controller层

二、static静态页面层

1.分页查询--删除

2.插入

3.修改

总结

一、controller层

package cn.gsm.demo01.controller;

import cn.gsm.demo01.entity.Student;
import cn.gsm.demo01.service.StudentService;
import org.springframework.web.bind.annotation.*;

import javax.annotation.Resource;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * (Student)表控制层
 *
 * @author makejava
 * @since 2023-04-10 15:48:42
 */
@RestController
@RequestMapping("student")
public class StudentController {
    /**
     * 服务对象
     */
    @Resource
    private StudentService studentService;

    /**
     * 通过主键查询单条数据
     *
     * @param id 主键
     * @return 单条数据
     */
    @GetMapping("selectOne")
    public Student selectOne(Integer id) {
        return this.studentService.queryById(id);
    }

    //查询所有
    @GetMapping("selectAll")
    public List selectAll() {
        return studentService.queryAll();
    }

    //插入
    @PostMapping("insertStudent")
    public void insertStudent(Student student) {
        studentService.insert(student);
    }
    //修改

    @PostMapping("updateStudent")
    public Student updateStudent(Student student) {
        if (student.getId() == null) {
            throw new RuntimeException("没有找到该学生Id");
        }
        return studentService.update(student);
    }

    @GetMapping("deleteById")
    public boolean deleteById(Integer id) {
        return studentService.deleteById(id);
    }

    //分页
    @GetMapping("findPage")
    public Map findPage(@RequestParam(defaultValue = "1") int page,
                                        @RequestParam(defaultValue = "5") int size) {
        //分页
        List students = studentService.queryAllByLimit((page - 1) * size, size);
        long count = studentService.countAll();
        long pageCount = count % size == 0 ? count / size : (count / size + 1);//总页数
        Map map = new HashMap<>();
        map.put("list", students);//对象数据
        map.put("count", count