随着社会的快速发展,计算机的影响是全面而深刻的。在生活中,大家也不断提高了对安卓APP的要求,电影信息推荐的信息数量也在与日俱增,这使电影信息推荐APP的问世成为了一件十分紧迫的事情[1]。
1.1 课题的研究背景
电影信息推荐APP主要通过计算机网络,对电影信息推荐APP的信息进行统一管理,方便管理员随时随地进行增添、修改、查询、删除各类信息,也方便用户查询电影信息、论坛交流等。本安卓APP极大的促进了系统与数据库管理系统软件之间的配合,满足了绝大部分用户的需求,给用户带来了很大的便利。以现在计算机的技术的应用,使计算机成为人们使用现代发达技术的桥梁。计算机可以有效的解决信息,十分方便的获取信息,从而提高工作的效率[2]。
1.2 课题研究目的
全球经济在快速的发展,中国更是进步飞速,这使得国内的互联网技术进入了发展的高峰时期,这让中外资本不断转向互联网这个大市场。在这个信息高度发达的现在,利用网络进行信息管理改革已经成为了人们追捧的一种趋势。“电影信息推荐APP”是运用java语言和SpringBoot框架,以Mysql数据库为基础而发出来的。为保证我国经济的持续性发展,必须要让互联网信息时代在我国日益壮大,蓬勃发展。伴随着信息社会的飞速发展,电影信息推荐所面临的问题也一个接一个的出现,所以现在最该解决的问题就是信息的实时查询和访问需求的问题,以及如何利用快捷便利的方式让访问者在广大信息系统中进行查询、分享、储存和管理。这对我们的现实生活中具有非常重要的意义,所以电影信息推荐APP诞生了[3]。
演示视频:
springboot基于andriod的电影信息推荐APP源码和答辩PPT论文
package com.controller;
import java.math.BigDecimal;
import java.text.SimpleDateFormat;
import java.text.ParseException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Calendar;
import java.util.Map;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Date;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import com.utils.ValidatorUtils;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.format.annotation.DateTimeFormat;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
import com.baomidou.mybatisplus.mapper.EntityWrapper;
import com.baomidou.mybatisplus.mapper.Wrapper;
import com.annotation.IgnoreAuth;
import com.entity.DianyingxinxiEntity;
import com.entity.view.DianyingxinxiView;
import com.service.DianyingxinxiService;
import com.service.TokenService;
import com.utils.PageUtils;
import com.utils.R;
import com.utils.MD5Util;
import com.utils.MPUtil;
import com.utils.CommonUtil;
import java.io.IOException;
import com.service.StoreupService;
import com.entity.StoreupEntity;
/**
* 电影信息
* 后端接口
* @author
* @email
* @date 2023-03-18 17:31:35
*/
@RestController
@RequestMapping("/dianyingxinxi")
public class DianyingxinxiController {
@Autowired
private DianyingxinxiService dianyingxinxiService;
@Autowired
private StoreupService storeupService;
/**
* 后端列表
*/
@RequestMapping("/page")
public R page(@RequestParam Map<String, Object> params,DianyingxinxiEntity dianyingxinxi,
HttpServletRequest request){
if(!request.getSession().getAttribute("role").toString().equals("管理员")) {
dianyingxinxi.setUserid((Long)request.getSession().getAttribute("userId"));
}
EntityWrapper<DianyingxinxiEntity> ew = new EntityWrapper<DianyingxinxiEntity>();
PageUtils page = dianyingxinxiService.queryPage(params, MPUtil.sort(MPUtil.between(MPUtil.likeOrEq(ew, dianyingxinxi), params), params));
return R.ok().put("data", page);
}
/**
* 前端列表
*/
@IgnoreAuth
@RequestMapping("/list")
public R list(@RequestParam Map<String, Object> params,DianyingxinxiEntity dianyingxinxi,
HttpServletRequest request){
EntityWrapper<DianyingxinxiEntity> ew = new EntityWrapper<DianyingxinxiEntity>();
PageUtils page = dianyingxinxiService.queryPage(params, MPUtil.sort(MPUtil.between(MPUtil.likeOrEq(ew, dianyingxinxi), params), params));
return R.ok().put("data", page);
}
/**
* 列表
*/
@RequestMapping("/lists")
public R list( DianyingxinxiEntity dianyingxinxi){
EntityWrapper<DianyingxinxiEntity> ew = new EntityWrapper<DianyingxinxiEntity>();
ew.allEq(MPUtil.allEQMapPre( dianyingxinxi, "dianyingxinxi"));
return R.ok().put("data", dianyingxinxiService.selectListView(ew));
}
/**
* 查询
*/
@RequestMapping("/query")
public R query(DianyingxinxiEntity dianyingxinxi){
EntityWrapper< DianyingxinxiEntity> ew = new EntityWrapper< DianyingxinxiEntity>();
ew.allEq(MPUtil.allEQMapPre( dianyingxinxi, "dianyingxinxi"));
DianyingxinxiView dianyingxinxiView = dianyingxinxiService.selectView(ew);
return R.ok("查询电影信息成功").put("data", dianyingxinxiView);
}
/**
* 后端详情
*/
@RequestMapping("/info/{id}")
public R info(@PathVariable("id") Long id){
DianyingxinxiEntity dianyingxinxi = dianyingxinxiService.selectById(id);
dianyingxinxi.setClicknum(dianyingxinxi.getClicknum()+1);
dianyingxinxi.setClicktime(new Date());
dianyingxinxiService.updateById(dianyingxinxi);
return R.ok().put("data", dianyingxinxi);
}
/**
* 前端详情
*/
@IgnoreAuth
@RequestMapping("/detail/{id}")
public R detail(@PathVariable("id") Long id){
DianyingxinxiEntity dianyingxinxi = dianyingxinxiService.selectById(id);
dianyingxinxi.setClicknum(dianyingxinxi.getClicknum()+1);
dianyingxinxi.setClicktime(new Date());
dianyingxinxiService.updateById(dianyingxinxi);
return R.ok().put("data", dianyingxinxi);
}
/**
* 赞或踩
*/
@RequestMapping("/thumbsup/{id}")
public R vote(@PathVariable("id") String id,String type){
DianyingxinxiEntity dianyingxinxi = dianyingxinxiService.selectById(id);
if(type.equals("1")) {
dianyingxinxi.setThumbsupnum(dianyingxinxi.getThumbsupnum()+1);
} else {
dianyingxinxi.setCrazilynum(dianyingxinxi.getCrazilynum()+1);
}
dianyingxinxiService.updateById(dianyingxinxi);
return R.ok("投票成功");
}
/**
* 后端保存
*/
@RequestMapping("/save")
public R save(@RequestBody DianyingxinxiEntity dianyingxinxi, HttpServletRequest request){
dianyingxinxi.setId(new Date().getTime()+new Double(Math.floor(Math.random()*1000)).longValue());
//ValidatorUtils.validateEntity(dianyingxinxi);
dianyingxinxi.setUserid((Long)request.getSession().getAttribute("userId"));
dianyingxinxiService.insert(dianyingxinxi);
return R.ok();
}
/**
* 前端保存
*/
@RequestMapping("/add")
public R add(@RequestBody DianyingxinxiEntity dianyingxinxi, HttpServletRequest request){
dianyingxinxi.setId(new Date().getTime()+new Double(Math.floor(Math.random()*1000)).longValue());
//ValidatorUtils.validateEntity(dianyingxinxi);
dianyingxinxiService.insert(dianyingxinxi);
return R.ok();
}
/**
* 修改
*/
@RequestMapping("/update")
@Transactional
public R update(@RequestBody DianyingxinxiEntity dianyingxinxi, HttpServletRequest request){
//ValidatorUtils.validateEntity(dianyingxinxi);
dianyingxinxiService.updateById(dianyingxinxi);//全部更新
return R.ok();
}
/**
* 删除
*/
@RequestMapping("/delete")
public R delete(@RequestBody Long[] ids){
dianyingxinxiService.deleteBatchIds(Arrays.asList(ids));
return R.ok();
}
/**
* 提醒接口
*/
@RequestMapping("/remind/{columnName}/{type}")
public R remindCount(@PathVariable("columnName") String columnName, HttpServletRequest request,
@PathVariable("type") String type,@RequestParam Map<String, Object> map) {
map.put("column", columnName);
map.put("type", type);
if(type.equals("2")) {
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
Calendar c = Calendar.getInstance();
Date remindStartDate = null;
Date remindEndDate = null;
if(map.get("remindstart")!=null) {
Integer remindStart = Integer.parseInt(map.get("remindstart").toString());
c.setTime(new Date());
c.add(Calendar.DAY_OF_MONTH,remindStart);
remindStartDate = c.getTime();
map.put("remindstart", sdf.format(remindStartDate));
}
if(map.get("remindend")!=null) {
Integer remindEnd = Integer.parseInt(map.get("remindend").toString());
c.setTime(new Date());
c.add(Calendar.DAY_OF_MONTH,remindEnd);
remindEndDate = c.getTime();
map.put("remindend", sdf.format(remindEndDate));
}
}
Wrapper<DianyingxinxiEntity> wrapper = new EntityWrapper<DianyingxinxiEntity>();
if(map.get("remindstart")!=null) {
wrapper.ge(columnName, map.get("remindstart"));
}
if(map.get("remindend")!=null) {
wrapper.le(columnName, map.get("remindend"));
}
if(!request.getSession().getAttribute("role").toString().equals("管理员")) {
wrapper.eq("userid", (Long)request.getSession().getAttribute("userId"));
}
int count = dianyingxinxiService.selectCount(wrapper);
return R.ok().put("count", count);
}
/**
* 前端智能排序
*/
@IgnoreAuth
@RequestMapping("/autoSort")
public R autoSort(@RequestParam Map<String, Object> params,DianyingxinxiEntity dianyingxinxi, HttpServletRequest request,String pre){
EntityWrapper<DianyingxinxiEntity> ew = new EntityWrapper<DianyingxinxiEntity>();
Map<String, Object> newMap = new HashMap<String, Object>();
Map<String, Object> param = new HashMap<String, Object>();
Iterator<Map.Entry<String, Object>> it = param.entrySet().iterator();
while (it.hasNext()) {
Map.Entry<String, Object> entry = it.next();
String key = entry.getKey();
String newKey = entry.getKey();
if (pre.endsWith(".")) {
newMap.put(pre + newKey, entry.getValue());
} else if (StringUtils.isEmpty(pre)) {
newMap.put(newKey, entry.getValue());
} else {
newMap.put(pre + "." + newKey, entry.getValue());
}
}
params.put("sort", "clicknum");
params.put("order", "desc");
PageUtils page = dianyingxinxiService.queryPage(params, MPUtil.sort(MPUtil.between(MPUtil.likeOrEq(ew, dianyingxinxi), params), params));
return R.ok().put("data", page);
}
/**
* 协同算法(按收藏推荐)
*/
@RequestMapping("/autoSort2")
public R autoSort2(@RequestParam Map<String, Object> params,DianyingxinxiEntity dianyingxinxi, HttpServletRequest request){
String userId = request.getSession().getAttribute("userId").toString();
String inteltypeColumn = "dianyingleixing";
List<StoreupEntity> storeups = storeupService.selectList(new EntityWrapper<StoreupEntity>().eq("type", 1).eq("userid", userId).eq("tablename", "dianyingxinxi").orderBy("addtime", false));
List<String> inteltypes = new ArrayList<String>();
Integer limit = params.get("limit")==null?10:Integer.parseInt(params.get("limit").toString());
List<DianyingxinxiEntity> dianyingxinxiList = new ArrayList<DianyingxinxiEntity>();
//去重
if(storeups!=null && storeups.size()>0) {
for(StoreupEntity s : storeups) {
dianyingxinxiList.addAll(dianyingxinxiService.selectList(new EntityWrapper<DianyingxinxiEntity>().eq(inteltypeColumn, s.getInteltype())));
}
}
EntityWrapper<DianyingxinxiEntity> ew = new EntityWrapper<DianyingxinxiEntity>();
params.put("sort", "id");
params.put("order", "desc");
PageUtils page = dianyingxinxiService.queryPage(params, MPUtil.sort(MPUtil.between(MPUtil.likeOrEq(ew, dianyingxinxi), params), params));
List<DianyingxinxiEntity> pageList = (List<DianyingxinxiEntity>)page.getList();
if(dianyingxinxiList.size()<limit) {
int toAddNum = (limit-dianyingxinxiList.size())<=pageList.size()?(limit-dianyingxinxiList.size()):pageList.size();
for(DianyingxinxiEntity o1 : pageList) {
boolean addFlag = true;
for(DianyingxinxiEntity o2 : dianyingxinxiList) {
if(o1.getId().intValue()==o2.getId().intValue()) {
addFlag = false;
break;
}
}
if(addFlag) {
dianyingxinxiList.add(o1);
if(--toAddNum==0) break;
}
}
} else if(dianyingxinxiList.size()>limit) {
dianyingxinxiList = dianyingxinxiList.subList(0, limit);
}
page.setList(dianyingxinxiList);
return R.ok().put("data", page);
}
}