开发语言：Java
框架：ssm
JDK版本：JDK1.8
服务器：tomcat7
数据库：mysql 5.7（一定要5.7版本）
数据库工具：Navicat11
开发软件：eclipse/myeclipse/idea
Maven包：Maven3.3.9
浏览器：谷歌浏览器
关键代码：
package com.dao;
import com.entity.KechengzuoyeEntity;
import com.baomidou.mybatisplus.mapper.BaseMapper;
import java.util.List;
import java.util.Map;
import com.baomidou.mybatisplus.mapper.Wrapper;
import com.baomidou.mybatisplus.plugins.pagination.Pagination;
import org.apache.ibatis.annotations.Param;
import com.entity.vo.KechengzuoyeVO;
import com.entity.view.KechengzuoyeView;
/**
* 课程作业
*
* @author
* @date 2022-03-31 09:46:16
*/
public interface KechengzuoyeDao extends BaseMapper<KechengzuoyeEntity> {
List<KechengzuoyeVO> selectListVO(@Param(“ew”) Wrapper<KechengzuoyeEntity> wrapper);
KechengzuoyeVO selectVO(@Param(“ew”) Wrapper<KechengzuoyeEntity> wrapper);
List<KechengzuoyeView> selectListView(@Param(“ew”) Wrapper<KechengzuoyeEntity> wrapper);
List<KechengzuoyeView> selectListView(Pagination page,@Param(“ew”) Wrapper<KechengzuoyeEntity> wrapper);
KechengzuoyeView selectView(@Param(“ew”) Wrapper<KechengzuoyeEntity> wrapper);
}
/**
* 后端列表
*/
@RequestMapping(“/page”)
public R page(@RequestParam Map<String, Object> params,XuankexinxiEntity xuankexinxi,
HttpServletRequest request){
String tableName = request.getSession().getAttribute(“tableName”).toString();
if(tableName.equals(“jiaoshi”)) {
xuankexinxi.setJiaoshigonghao((String)request.getSession().getAttribute(“username”));
}
if(tableName.equals(“xuesheng”)) {
xuankexinxi.setXuehao((String)request.getSession().getAttribute(“username”));
}
EntityWrapper<XuankexinxiEntity> ew = new EntityWrapper<XuankexinxiEntity>();
PageUtils page = xuankexinxiService.queryPage(params, MPUtil.sort(MPUtil.between(MPUtil.likeOrEq(ew, xuankexinxi), params), params));
return R.ok().put(“data”, page);
}
/**
* 前端列表
*/
@IgnoreAuth
@RequestMapping(“/list”)
public R list(@RequestParam Map<String, Object> params,XuankexinxiEntity xuankexinxi,
HttpServletRequest request){
EntityWrapper<XuankexinxiEntity> ew = new EntityWrapper<XuankexinxiEntity>();
PageUtils page = xuankexinxiService.queryPage(params, MPUtil.sort(MPUtil.between(MPUtil.likeOrEq(ew, xuankexinxi), params), params));
return R.ok().put(“data”, page);
}
/**
* 列表
*/
@RequestMapping(“/lists”)
public R list( XuankexinxiEntity xuankexinxi){
EntityWrapper<XuankexinxiEntity> ew = new EntityWrapper<XuankexinxiEntity>();
ew.allEq(MPUtil.allEQMapPre( xuankexinxi, “xuankexinxi”));
return R.ok().put(“data”, xuankexinxiService.selectListView(ew));
}
/**
* 查询
*/
@RequestMapping(“/query”)
public R query(XuankexinxiEntity xuankexinxi){
EntityWrapper< XuankexinxiEntity> ew = new EntityWrapper< XuankexinxiEntity>();
ew.allEq(MPUtil.allEQMapPre( xuankexinxi, “xuankexinxi”));
XuankexinxiView xuankexinxiView = xuankexinxiService.selectView(ew);
return R.ok(“查询选课信息成功”).put(“data”, xuankexinxiView);
}
/**
* 后端详情
*/
@RequestMapping(“/info/{id}”)
public R info(@PathVariable(“id”) Long id){
XuankexinxiEntity xuankexinxi = xuankexinxiService.selectById(id);
return R.ok().put(“data”, xuankexinxi);
}
/**
* 前端详情
*/
@IgnoreAuth
@RequestMapping(“/detail/{id}”)
public R detail(@PathVariable(“id”) Long id){
XuankexinxiEntity xuankexinxi = xuankexinxiService.selectById(id);
return R.ok().put(“data”, xuankexinxi);
}
/**
* 后端保存
*/
@RequestMapping(“/save”)
public R save(@RequestBody XuankexinxiEntity xuankexinxi, HttpServletRequest request){
xuankexinxi.setId(new Date().getTime()+new Double(Math.floor(Math.random()*1000)).longValue());
//ValidatorUtils.validateEntity(xuankexinxi);
xuankexinxiService.insert(xuankexinxi);
return R.ok();
}
/**
* 前端保存
*/
@RequestMapping(“/add”)
public R add(@RequestBody XuankexinxiEntity xuankexinxi, HttpServletRequest request){
xuankexinxi.setId(new Date().getTime()+new Double(Math.floor(Math.random()*1000)).longValue());
//ValidatorUtils.validateEntity(xuankexinxi);
xuankexinxiService.insert(xuankexinxi);
return R.ok();
}