基于ssm校园短期闲置资源置换平台源码和论文

idea 数据库mysql5.7+ 数据库链接工具：navcat,小海豚等 环境： jdk8 tomcat8.5

开发技术 ssm

基于ssm校园短期闲置资源置换平台源码和论文755

Absract

Campus short-term idle resources replacement platform is an indispensable part of campus short-term idle resources replacement. In the whole process of campus short-term idle resources replacement, the campus short-term idle resources replacement platform plays the most important role. In order to meet today's increasingly complex management needs, all kinds of campus short-term idle resources replacement management procedures are constantly improved. The campus short-term idle resources replacement platform designed by this topic is developed using Java technology. Its advantages of code can not be viewed from the browser, confidentiality is very good, more secure than other systems. Java is also easy to modify and debug, which is important as businesses continue to evolve and have more requirements. Moreover, the system of campus short-term idle resources replacement management, is to meet the deeper needs. In addition to the advantages mentioned above, the system also has the characteristics of quick inquiry, convenient data search and strong reliability.

Key words: campus short-term idle resources replacement; Java; reliability

package com.controller;

import java.text.SimpleDateFormat;
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 java.io.IOException;

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.ZhihuanshangpinEntity;
import com.entity.view.ZhihuanshangpinView;

import com.service.ZhihuanshangpinService;
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 com.service.StoreupService;
import com.entity.StoreupEntity;

/**
 * 置换商品
 * 后端接口
 * @author 
 * @email 
 * @date 2022-04-25 17:05:25
 */
@RestController
@RequestMapping("/zhihuanshangpin")
public class ZhihuanshangpinController {
    @Autowired
    private ZhihuanshangpinService zhihuanshangpinService;


    @Autowired
    private StoreupService storeupService;

    


    /**
     * 后端列表
     */
    @RequestMapping("/page")
    public R page(@RequestParam Map<String, Object> params,ZhihuanshangpinEntity zhihuanshangpin, 
		HttpServletRequest request){

		String tableName = request.getSession().getAttribute("tableName").toString();
		if(tableName.equals("zhihuanzhanghu")) {
			zhihuanshangpin.setZhihuanzhanghao((String)request.getSession().getAttribute("username"));
		}
        EntityWrapper<ZhihuanshangpinEntity> ew = new EntityWrapper<ZhihuanshangpinEntity>();
		PageUtils page = zhihuanshangpinService.queryPage(params, MPUtil.sort(MPUtil.between(MPUtil.likeOrEq(ew, zhihuanshangpin), params), params));
        return R.ok().put("data", page);
    }
    
    /**
     * 前端列表
     */
	@IgnoreAuth
    @RequestMapping("/list")
    public R list(@RequestParam Map<String, Object> params,ZhihuanshangpinEntity zhihuanshangpin, 
		HttpServletRequest request){
        EntityWrapper<ZhihuanshangpinEntity> ew = new EntityWrapper<ZhihuanshangpinEntity>();
		PageUtils page = zhihuanshangpinService.queryPage(params, MPUtil.sort(MPUtil.between(MPUtil.likeOrEq(ew, zhihuanshangpin), params), params));
        return R.ok().put("data", page);
    }

	/**
     * 列表
     */
    @RequestMapping("/lists")
    public R list( ZhihuanshangpinEntity zhihuanshangpin){
       	EntityWrapper<ZhihuanshangpinEntity> ew = new EntityWrapper<ZhihuanshangpinEntity>();
      	ew.allEq(MPUtil.allEQMapPre( zhihuanshangpin, "zhihuanshangpin")); 
        return R.ok().put("data", zhihuanshangpinService.selectListView(ew));
    }

	 /**
     * 查询
     */
    @RequestMapping("/query")
    public R query(ZhihuanshangpinEntity zhihuanshangpin){
        EntityWrapper< ZhihuanshangpinEntity> ew = new EntityWrapper< ZhihuanshangpinEntity>();
 		ew.allEq(MPUtil.allEQMapPre( zhihuanshangpin, "zhihuanshangpin")); 
		ZhihuanshangpinView zhihuanshangpinView =  zhihuanshangpinService.selectView(ew);
		return R.ok("查询置换商品成功").put("data", zhihuanshangpinView);
    }
	
    /**
     * 后端详情
     */
    @RequestMapping("/info/{id}")
    public R info(@PathVariable("id") Long id){
        ZhihuanshangpinEntity zhihuanshangpin = zhihuanshangpinService.selectById(id);
		zhihuanshangpin.setClicknum(zhihuanshangpin.getClicknum()+1);
		zhihuanshangpin.setClicktime(new Date());
		zhihuanshangpinService.updateById(zhihuanshangpin);
        return R.ok().put("data", zhihuanshangpin);
    }

    /**
     * 前端详情
     */
	@IgnoreAuth
    @RequestMapping("/detail/{id}")
    public R detail(@PathVariable("id") Long id){
        ZhihuanshangpinEntity zhihuanshangpin = zhihuanshangpinService.selectById(id);
		zhihuanshangpin.setClicknum(zhihuanshangpin.getClicknum()+1);
		zhihuanshangpin.setClicktime(new Date());
		zhihuanshangpinService.updateById(zhihuanshangpin);
        return R.ok().put("data", zhihuanshangpin);
    }
    



    /**
     * 后端保存
     */
    @RequestMapping("/save")
    public R save(@RequestBody ZhihuanshangpinEntity zhihuanshangpin, HttpServletRequest request){
    	zhihuanshangpin.setId(new Date().getTime()+new Double(Math.floor(Math.random()*1000)).longValue());
    	//ValidatorUtils.validateEntity(zhihuanshangpin);

        zhihuanshangpinService.insert(zhihuanshangpin);
        return R.ok();
    }
    
    /**
     * 前端保存
     */
    @RequestMapping("/add")
    public R add(@RequestBody ZhihuanshangpinEntity zhihuanshangpin, HttpServletRequest request){
    	zhihuanshangpin.setId(new Date().getTime()+new Double(Math.floor(Math.random()*1000)).longValue());
    	//ValidatorUtils.validateEntity(zhihuanshangpin);

        zhihuanshangpinService.insert(zhihuanshangpin);
        return R.ok();
    }

    /**
     * 修改
     */
    @RequestMapping("/update")
    @Transactional
    public R update(@RequestBody ZhihuanshangpinEntity zhihuanshangpin, HttpServletRequest request){
        //ValidatorUtils.validateEntity(zhihuanshangpin);
        zhihuanshangpinService.updateById(zhihuanshangpin);//全部更新
        return R.ok();
    }
    

    /**
     * 删除
     */
    @RequestMapping("/delete")
    public R delete(@RequestBody Long[] ids){
        zhihuanshangpinService.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<ZhihuanshangpinEntity> wrapper = new EntityWrapper<ZhihuanshangpinEntity>();
		if(map.get("remindstart")!=null) {
			wrapper.ge(columnName, map.get("remindstart"));
		}
		if(map.get("remindend")!=null) {
			wrapper.le(columnName, map.get("remindend"));
		}

		String tableName = request.getSession().getAttribute("tableName").toString();
		if(tableName.equals("zhihuanzhanghu")) {
			wrapper.eq("zhihuanzhanghao", (String)request.getSession().getAttribute("username"));
		}

		int count = zhihuanshangpinService.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,ZhihuanshangpinEntity zhihuanshangpin, HttpServletRequest request,String pre){
        EntityWrapper<ZhihuanshangpinEntity> ew = new EntityWrapper<ZhihuanshangpinEntity>();
        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 = zhihuanshangpinService.queryPage(params, MPUtil.sort(MPUtil.between(MPUtil.likeOrEq(ew, zhihuanshangpin), 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,ZhihuanshangpinEntity zhihuanshangpin, HttpServletRequest request){
        String userId = request.getSession().getAttribute("userId").toString();
        String inteltypeColumn = "shangpinfenlei";
        List<StoreupEntity> storeups = storeupService.selectList(new EntityWrapper<StoreupEntity>().eq("type", 1).eq("userid", userId).eq("tablename", "zhihuanshangpin").orderBy("addtime", false));
        List<String> inteltypes = new ArrayList<String>();
        Integer limit = params.get("limit")==null?10:Integer.parseInt(params.get("limit").toString());
        List<ZhihuanshangpinEntity> zhihuanshangpinList = new ArrayList<ZhihuanshangpinEntity>();
        //去重
        if(storeups!=null && storeups.size()>0) {
            for(StoreupEntity s : storeups) {
                zhihuanshangpinList.addAll(zhihuanshangpinService.selectList(new EntityWrapper<ZhihuanshangpinEntity>().eq(inteltypeColumn, s.getInteltype())));
            }
        }
        EntityWrapper<ZhihuanshangpinEntity> ew = new EntityWrapper<ZhihuanshangpinEntity>();
        params.put("sort", "id");
        params.put("order", "desc");
        PageUtils page = zhihuanshangpinService.queryPage(params, MPUtil.sort(MPUtil.between(MPUtil.likeOrEq(ew, zhihuanshangpin), params), params));
        List<ZhihuanshangpinEntity> pageList = (List<ZhihuanshangpinEntity>)page.getList();
        if(zhihuanshangpinList.size()<limit) {
            int toAddNum = (limit-zhihuanshangpinList.size())<=pageList.size()?(limit-zhihuanshangpinList.size()):pageList.size();
            for(ZhihuanshangpinEntity o1 : pageList) {
                boolean addFlag = true;
                for(ZhihuanshangpinEntity o2 : zhihuanshangpinList) {
                    if(o1.getId().intValue()==o2.getId().intValue()) {
                        addFlag = false;
                        break;
                    }
                }
                if(addFlag) {
                    zhihuanshangpinList.add(o1);
                    if(--toAddNum==0) break;
                }
            }
        } else if(zhihuanshangpinList.size()>limit) {
            zhihuanshangpinList = zhihuanshangpinList.subList(0, limit);
        }
        page.setList(zhihuanshangpinList);
        return R.ok().put("data", page);
    }





}

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