redis的应用（三）与solr的联合查询
文章目录
- 需求分析
- 缓存实现
- 前端接口查询缓存的实现
- 测试
需求分析
根据搜索关键字，页面显示相关的商品分类，根据相关的商品分类借助分类模板从后台查询出品牌、规格以及规格选项进行显示
为了应对高并发，将根据相关的商品分类借助分类模板从后台查询出品牌、规格以及规格选项保存到redis数据库中，查询的时候不再从关系数据库中查询，直接从更快的redis数据库中查询
涉及到的数据库表有三个：
缓存实现
缓存这些数据要在运营商后台管理中进行（因为运营商后台管理对这些数据进行增删改查的操作），查询这些数据是在搜索服务中调用，然后提供给搜索页面
在原来的分类查询业务的基础上加入商品分类缓存
- 加入缓存
- 在商品搜索模块，需要根据 分类名 得到模板Id
- 因此，在操作分类的模块中，我们提前将分类数据缓存起来
- 缓存规则：分类名作为 小键， 以模板id作为值
@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);
//加入缓存
Set keys = redisTemplate.boundHashOps("categoryList").keys();
if (keys!=null && keys.size()>0){
}else {//没有任何的键，开始缓存
List<TbItemCat> allCats = findAll();
for (TbItemCat cat : allCats) {
redisTemplate.boundHashOps("categoryList").put(cat.getName(),cat.getTypeId());
}
System.out.println(">>>>>添加分类信息至缓存");
}
return itemCats;
}
在原来的分类模板查询业务的基础上加入商品分类模板缓存
- 商品搜索模块，需要根据模板id，得到品牌、规格列表
- 所以，在此处，我们将模板的信息加入缓存
- 缓存的规则：
- 针对品牌：取一个品牌的大键brandList，然后以模板id作为小键，品牌列表作为值
- 针对规格：取一个规格的大键specList，然后以模板id作为小键，规格 + 规格选项 的列表作为值
@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{//缓存信息中没有键,开始缓存
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{//缓存信息中没有键,开始缓存
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(">>>>>添加规格列表至缓存");
}
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":"尺码"},{"id":29,"text":"颜色"}]
List<Map> maps = JSON.parseArray(tbTypeTemplate.getSpecIds(), Map.class);
// map的格式：{"id":26,"text":"尺码"}
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的新格式变为：{"id":26,"text":"尺码", "options": [{id: 24, optionName: ""56寸}]}
}
return maps;
}
前端接口查询缓存的实现
@Autowired
private RedisTemplate redisTemplate;
public Map<String, Object> search(Map searchMap) {
Map<String,Object> map = new HashMap<>();
//关键字高亮
highlight(searchMap,map);
//根据关键字获取分类
categoryList(searchMap,map);
// 如果页面传递过来了分类名，就不使用默认的第一个分类查询品牌、规格了
if (!"".equals(searchMap.get("category"))){
brandAndSpecListSearch((String)searchMap.get("category"),map);
}else {
//查询品牌规格列表
List<String> categoryList = (List<String>) map.get("categoryList");
if (categoryList.size()>0){
brandAndSpecListSearch(categoryList.get(0),map);
}
}
return map;
}
测试
控制台打印
搜索之前
搜索之后
{
"categoryList": [
"电子书",
"牙膏/牙粉",
"手机"
],
"specList": [
{
"options": [
{
"id": 98,
"optionName": "移动3G",
"orders": 1,
"specId": 27
},
{
"id": 99,
"optionName": "移动4G",
"orders": 2,
"specId": 27
},
{
"id": 100,
"optionName": "联通3G",
"orders": 3,
"specId": 27
},
{
"id": 101,
"optionName": "联通4G",
"orders": 4,
"specId": 27
},
{
"id": 112,
"optionName": "电信3G",
"orders": 5,
"specId": 27
},
{
"id": 113,
"optionName": "电信4G",
"orders": 6,
"specId": 27
},
{
"id": 114,
"optionName": "移动2G",
"orders": 7,
"specId": 27
},
{
"id": 115,
"optionName": "联通2G",
"orders": 8,
"specId": 27
},
{
"id": 116,
"optionName": "电信2G",
"orders": 9,
"specId": 27
},
{
"id": 117,
"optionName": "双卡",
"orders": 10,
"specId": 27
}
],
"id": 27,
"text": "网络"
},
{
"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": "机身内存"
}
],
"brandList": [
{
"id": 1,
"text": "联想"
},
{
"id": 3,
"text": "三星"
},
{
"id": 2,
"text": "华为"
},
{
"id": 5,
"text": "OPPO"
},
{
"id": 4,
"text": "小米"
},
{
"id": 9,
"text": "苹果"
},
{
"id": 8,
"text": "魅族"
},
{
"id": 6,
"text": "360"
},
{
"id": 10,
"text": "VIVO"
},
{
"id": 11,
"text": "诺基亚"
},
{
"id": 12,
"text": "锤子"
}
],
"rows": [
{
"barcode": null,
"brand": "联想",
"cartThumbnail": null,
"category": "电子书",
"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": "测试",
"sellerId": null,
"spec": null,
"specMap": {
"jishenneicun": "16G",
"wangluo": "移动4G"
},
"status": null,
"stockCount": null,
"title": "测试电子书nullnull",
"updateTime": "2020-06-01 10:56:47"
},
{
"barcode": null,
"brand": "联想",
"cartThumbnail": null,
"category": "电子书",
"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": "测试",
"sellerId": null,
"spec": null,
"specMap": {
"jishenneicun": "16G",
"wangluo": "双卡"
},
"status": null,
"stockCount": null,
"title": "测试电子书nullnull",
"updateTime": "2020-06-01 10:56:47"
},
{
"barcode": null,
"brand": "联想",
"cartThumbnail": null,
"category": "电子书",
"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": "测试",
"sellerId": null,
"spec": null,
"specMap": {
"jishenneicun": "16G",
"wangluo": "移动3G"
},
"status": null,
"stockCount": null,
"title": "测试电子书nullnull",
"updateTime": "2020-06-01 10:56:47"
},
{
"barcode": null,
"brand": "小米",
"cartThumbnail": null,
"category": "电子书",
"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": "测试",
"sellerId": null,
"spec": null,
"specMap": null,
"status": null,
"stockCount": null,
"title": "电子书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": "测试商品110",
"updateTime": "2017-09-23 21:47:51"
},
{
"barcode": null,
"brand": "中国移动",
"cartThumbnail": null,
"category": "手机",
"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": "中国移动",
"sellerId": null,
"spec": null,
"specMap": {
"jishenneicun": "16G",
"wangluo": "双卡"
},
"status": null,
"stockCount": null,
"title": "合约惠机测试手机（请勿下单）",
"updateTime": "2015-03-08 21:33:18"
}
]
}