redis的應用（三）與solr的聯合查詢

文章目錄

需求分析

根據搜索關鍵字，頁面顯示相關的商品分類，根據相關的商品分類藉助分類模板從後臺查詢出品牌、規格以及規格選項進行顯示
爲了應對高併發，將根據相關的商品分類藉助分類模板從後臺查詢出品牌、規格以及規格選項保存到redis數據庫中，查詢的時候不再從關係數據庫中查詢，直接從更快的redis數據庫中查詢
涉及到的數據庫表有三個：

緩存實現

緩存這些數據要在運營商後臺管理中進行（因爲運營商後臺管理對這些數據進行增刪改查的操作），查詢這些數據是在搜索服務中調用，然後提供給搜索頁面

在原來的分類查詢業務的基礎上加入商品分類緩存

加入緩存
在商品搜索模塊，需要根據分類名得到模板Id
因此，在操作分類的模塊中，我們提前將分類數據緩存起來
緩存規則：分類名作爲小鍵，以模板id作爲值

@Autowired
private RedisTemplate redisTemplate;

public List<TbItemCat> findByParentId(Long pId) {
	TbItemCatExample example = new TbItemCatExample();
	Criteria criteria = example.createCriteria();
	criteria.andParentIdEqualTo(pId);
	List<TbItemCat> itemCats = itemCatMapper.selectByExample(example);
	
	//加入緩存
	Set keys = redisTemplate.boundHashOps("categoryList").keys();
	if (keys!=null && keys.size()>0){

	}else {//沒有任何的鍵，開始緩存
		List<TbItemCat> allCats = findAll();
		for (TbItemCat cat : allCats) {
			redisTemplate.boundHashOps("categoryList").put(cat.getName(),cat.getTypeId());
		}
		System.out.println(">>>>>添加分類信息至緩存");
	}
	return itemCats;
}

在原來的分類模板查詢業務的基礎上加入商品分類模板緩存

商品搜索模塊，需要根據模板id，得到品牌、規格列表
所以，在此處，我們將模板的信息加入緩存
緩存的規則：
針對品牌：取一個品牌的大鍵brandList，然後以模板id作爲小鍵，品牌列表作爲值
針對規格：取一個規格的大鍵specList，然後以模板id作爲小鍵，規格 + 規格選項的列表作爲值

@Autowired
private RedisTemplate redisTemplate;

public PageResult findPage(TbTypeTemplate typeTemplate, int pageNum, int pageSize) {
	PageHelper.startPage(pageNum, pageSize);
	
	TbTypeTemplateExample example=new TbTypeTemplateExample();
	Criteria criteria = example.createCriteria();
	
	if(typeTemplate != null){			
					if(typeTemplate.getName() != null && typeTemplate.getName().length() > 0){
			criteria.andNameLike("%" + typeTemplate.getName() + "%");
		}			if(typeTemplate.getSpecIds() != null && typeTemplate.getSpecIds().length() > 0){
			criteria.andSpecIdsLike("%" + typeTemplate.getSpecIds() + "%");
		}			if(typeTemplate.getBrandIds() != null && typeTemplate.getBrandIds().length() > 0){
			criteria.andBrandIdsLike("%" + typeTemplate.getBrandIds() + "%");
		}			if(typeTemplate.getCustomAttributeItems() != null && typeTemplate.getCustomAttributeItems().length() > 0){
			criteria.andCustomAttributeItemsLike("%" + typeTemplate.getCustomAttributeItems() + "%");
		}
	}

	Page<TbTypeTemplate> page= (Page<TbTypeTemplate>)typeTemplateMapper.selectByExample(example);
	List<TbTypeTemplate> list = null;
	Set brandKeys = redisTemplate.boundHashOps("brandList").keys();
	if (brandKeys!=null && brandKeys.size()>0){

	}else{//緩存信息中沒有鍵,開始緩存
		list = findAll();
		for (TbTypeTemplate template : list) {
			List<Map> brands = JSON.parseArray(template.getBrandIds(), Map.class);
			redisTemplate.boundHashOps("brandList").put(template.getId(),brands);
		}
	}

	Set specKeys = redisTemplate.boundHashOps("specList").keys();
	if (specKeys!=null && specKeys.size()>0){

	}else{//緩存信息中沒有鍵,開始緩存
		if (list==null){
			list = findAll();
		}
		for (TbTypeTemplate template : list) {
			List<Map> specMaps = findSpecAndOptionsByTypeTemplateId(template.getId());
			redisTemplate.boundHashOps("specList").put(template.getId(),specMaps);
		}
		System.out.println(">>>>>添加規格列表至緩存");
	}
	return new PageResult(page.getTotal(), page.getResult());
}

public List<Map> findSpecAndOptionsByTypeTemplateId(Long typeTemplateId) {
	TbTypeTemplate tbTypeTemplate = typeTemplateMapper.selectByPrimaryKey(typeTemplateId);
	// List的格式：[{"id":26,"text":"尺碼"},{"id":29,"text":"顏色"}]
	List<Map> maps = JSON.parseArray(tbTypeTemplate.getSpecIds(), Map.class);
	// map的格式：{"id":26,"text":"尺碼"}
	for (Map map : maps) {

		TbSpecificationOptionExample example = new TbSpecificationOptionExample();
		TbSpecificationOptionExample.Criteria criteria = example.createCriteria();
		criteria.andSpecIdEqualTo(Long.parseLong(map.get("id")+""));
		List<TbSpecificationOption> specificationOptions = specificationOptionMapper.selectByExample(example);
		map.put("options",specificationOptions);
		// map的新格式變爲：{"id":26,"text":"尺碼", "options": [{id: 24, optionName: ""56寸}]}
	}
	return maps;
}

前端接口查詢緩存的實現

@Autowired
private RedisTemplate redisTemplate;

public Map<String, Object> search(Map searchMap) {

    Map<String,Object> map = new HashMap<>();
    //關鍵字高亮
    highlight(searchMap,map);
    //根據關鍵字獲取分類
    categoryList(searchMap,map);
    
    
    // 如果頁面傳遞過來了分類名，就不使用默認的第一個分類查詢品牌、規格了
    if (!"".equals(searchMap.get("category"))){
        brandAndSpecListSearch((String)searchMap.get("category"),map);
    }else {
        //查詢品牌規格列表
        List<String> categoryList = (List<String>) map.get("categoryList");
        if (categoryList.size()>0){
            brandAndSpecListSearch(categoryList.get(0),map);
        }
    }
    return map;
}

測試

控制檯打印

搜索之前

搜索之後

{
  "categoryList": [
    "電子書",
    "牙膏/牙粉",
    "手機"
  ],
  "specList": [
    {
      "options": [
        {
          "id": 98,
          "optionName": "移動3G",
          "orders": 1,
          "specId": 27
        },
        {
          "id": 99,
          "optionName": "移動4G",
          "orders": 2,
          "specId": 27
        },
        {
          "id": 100,
          "optionName": "聯通3G",
          "orders": 3,
          "specId": 27
        },
        {
          "id": 101,
          "optionName": "聯通4G",
          "orders": 4,
          "specId": 27
        },
        {
          "id": 112,
          "optionName": "電信3G",
          "orders": 5,
          "specId": 27
        },
        {
          "id": 113,
          "optionName": "電信4G",
          "orders": 6,
          "specId": 27
        },
        {
          "id": 114,
          "optionName": "移動2G",
          "orders": 7,
          "specId": 27
        },
        {
          "id": 115,
          "optionName": "聯通2G",
          "orders": 8,
          "specId": 27
        },
        {
          "id": 116,
          "optionName": "電信2G",
          "orders": 9,
          "specId": 27
        },
        {
          "id": 117,
          "optionName": "雙卡",
          "orders": 10,
          "specId": 27
        }
      ],
      "id": 27,
      "text": "網絡"
    },
    {
      "options": [
        {
          "id": 118,
          "optionName": "16G",
          "orders": 1,
          "specId": 32
        },
        {
          "id": 119,
          "optionName": "32G",
          "orders": 2,
          "specId": 32
        },
        {
          "id": 120,
          "optionName": "64G",
          "orders": 3,
          "specId": 32
        },
        {
          "id": 121,
          "optionName": "128G",
          "orders": 4,
          "specId": 32
        }
      ],
      "id": 32,
      "text": "機身內存"
    }
  ],
  "brandList": [
    {
      "id": 1,
      "text": "聯想"
    },
    {
      "id": 3,
      "text": "三星"
    },
    {
      "id": 2,
      "text": "華爲"
    },
    {
      "id": 5,
      "text": "OPPO"
    },
    {
      "id": 4,
      "text": "小米"
    },
    {
      "id": 9,
      "text": "蘋果"
    },
    {
      "id": 8,
      "text": "魅族"
    },
    {
      "id": 6,
      "text": "360"
    },
    {
      "id": 10,
      "text": "VIVO"
    },
    {
      "id": 11,
      "text": "諾基亞"
    },
    {
      "id": 12,
      "text": "錘子"
    }
  ],
  "rows": [
    {
      "barcode": null,
      "brand": "聯想",
      "cartThumbnail": null,
      "category": "電子書",
      "categoryid": null,
      "costPirce": null,
      "createTime": null,
      "goodsId": 149187842867963,
      "id": 1369288,
      "image": "http://192.168.2.123/group1/M00/00/00/wKgCe17TrT-AfRG1AADFbi0oR0A460.jpg",
      "isDefault": null,
      "itemSn": null,
      "marketPrice": null,
      "num": null,
      "price": 0,
      "sellPoint": null,
      "seller": "測試",
      "sellerId": null,
      "spec": null,
      "specMap": {
        "jishenneicun": "16G",
        "wangluo": "移動4G"
      },
      "status": null,
      "stockCount": null,
      "title": "<span style='color:red'>測試</span>電子書nullnull",
      "updateTime": "2020-06-01 10:56:47"
    },
    {
      "barcode": null,
      "brand": "聯想",
      "cartThumbnail": null,
      "category": "電子書",
      "categoryid": null,
      "costPirce": null,
      "createTime": null,
      "goodsId": 149187842867963,
      "id": 1369289,
      "image": "http://192.168.2.123/group1/M00/00/00/wKgCe17TrT-AfRG1AADFbi0oR0A460.jpg",
      "isDefault": null,
      "itemSn": null,
      "marketPrice": null,
      "num": null,
      "price": 0,
      "sellPoint": null,
      "seller": "測試",
      "sellerId": null,
      "spec": null,
      "specMap": {
        "jishenneicun": "16G",
        "wangluo": "雙卡"
      },
      "status": null,
      "stockCount": null,
      "title": "<span style='color:red'>測試</span>電子書nullnull",
      "updateTime": "2020-06-01 10:56:47"
    },
    {
      "barcode": null,
      "brand": "聯想",
      "cartThumbnail": null,
      "category": "電子書",
      "categoryid": null,
      "costPirce": null,
      "createTime": null,
      "goodsId": 149187842867963,
      "id": 1369290,
      "image": "http://192.168.2.123/group1/M00/00/00/wKgCe17TrT-AfRG1AADFbi0oR0A460.jpg",
      "isDefault": null,
      "itemSn": null,
      "marketPrice": null,
      "num": null,
      "price": 0,
      "sellPoint": null,
      "seller": "測試",
      "sellerId": null,
      "spec": null,
      "specMap": {
        "jishenneicun": "16G",
        "wangluo": "移動3G"
      },
      "status": null,
      "stockCount": null,
      "title": "<span style='color:red'>測試</span>電子書nullnull",
      "updateTime": "2020-06-01 10:56:47"
    },
    {
      "barcode": null,
      "brand": "小米",
      "cartThumbnail": null,
      "category": "電子書",
      "categoryid": null,
      "costPirce": null,
      "createTime": null,
      "goodsId": 149187842867964,
      "id": 1369287,
      "image": "http://192.168.2.123/group1/M00/00/00/wKgCe17TsLWAAWwDAADFbi0oR0A073.jpg",
      "isDefault": null,
      "itemSn": null,
      "marketPrice": null,
      "num": null,
      "price": 30,
      "sellPoint": null,
      "seller": "測試",
      "sellerId": null,
      "spec": null,
      "specMap": null,
      "status": null,
      "stockCount": null,
      "title": "電子書2",
      "updateTime": "2020-06-01 10:56:17"
    },
    {
      "barcode": null,
      "brand": "魅族",
      "cartThumbnail": null,
      "category": "牙膏/牙粉",
      "categoryid": null,
      "costPirce": null,
      "createTime": null,
      "goodsId": 149187842867955,
      "id": 1369279,
      "image": "http://192.168.25.133/group1/M00/00/00/wKgZhVnGZfWAaX2hAAjlKdWCzvg173.jpg",
      "isDefault": null,
      "itemSn": null,
      "marketPrice": null,
      "num": null,
      "price": 100,
      "sellPoint": null,
      "seller": "千度商店",
      "sellerId": null,
      "spec": null,
      "specMap": null,
      "status": null,
      "stockCount": null,
      "title": "<span style='color:red'>測試</span>商品110",
      "updateTime": "2017-09-23 21:47:51"
    },
    {
      "barcode": null,
      "brand": "中國移動",
      "cartThumbnail": null,
      "category": "手機",
      "categoryid": null,
      "costPirce": null,
      "createTime": null,
      "goodsId": 1,
      "id": 1039296,
      "image": "http://img12.360buyimg.com/n1/s450x450_jfs/t3034/299/2060854617/119711/577e85cb/57d11b6cN1fd1194d.jpg",
      "isDefault": null,
      "itemSn": null,
      "marketPrice": null,
      "num": null,
      "price": 2699,
      "sellPoint": null,
      "seller": "中國移動",
      "sellerId": null,
      "spec": null,
      "specMap": {
        "jishenneicun": "16G",
        "wangluo": "雙卡"
      },
      "status": null,
      "stockCount": null,
      "title": "合約惠機<span style='color:red'>測試</span>手機（請勿下單）",
      "updateTime": "2015-03-08 21:33:18"
    }
  ]
}

redis的應用（三）與solr的聯合查詢

文章目錄

需求分析

緩存實現

前端接口查詢緩存的實現

測試

springboot使用jdbc操作數據庫

SpringBoot構建RESTful API

秒殺模塊的實現

支付寶支付的實現

購物車列表的存儲實現

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