（六）通过solr7的API实现商品的列表查询

（六）通过solr7的API实现商品的列表查询

工具类：

获取 HttpSolrClient

public class Constant {
    public static HttpSolrClient getSolrClient() {
        HttpSolrClient solrServer= new HttpSolrClient.Builder("http://127.0.0.1:8080/solr/core1").build();
        return solrServer;
    }   
}

jsp表单：

<form id="actionForm" action="serch.do" method="POST">
                <div class="form">
                    <input type="text" class="text" accesskey="s" name="queryString" id="key" value="${queryString }"
                        autocomplete="off" onkeydown="javascript:if(event.keyCode==13) {query()}">
                    <input type="button" value="搜索" class="button" onclick="query()">
                </div>
                <input type="hidden" name="catalog_name" id="catalog_name" value="${catalog_name }"/> 
                <input type="hidden" name="price" id="price" value="${price }"/> 
                <input type="hidden" name="page" id="page" value="${page }"/> 
                <input type="hidden" name="sort" id="sort" value="${sort }"/> 
                </form>

Controller控制层：

//搜索
@RequestMapping("/serch.do")
public String serchProduct(String queryString,String catalog_name,Integer price,String page,String sort ,Model model) throws Exception{
　　　　　　　Result result = productService.querylist(queryString,catalog_name,price,page,sort);
            System.out.println(result);
            model.addAttribute("result", result);
            model.addAttribute("queryString",queryString);
            model.addAttribute("商品",catalog_name);
            System.out.println("访问成功");
            return "product_list";
        }

service层，没有dao层这里直接在service查询solr，童鞋可以自己使用dao：

    //主列表查询    
    public Result querylist(String qName, String catalog_name, Integer price, String page, String sort) throws Exception {
        HttpSolrClient solrServer = Constant.getSolrClient();
        //使用solrQuery封装查询条件
        SolrQuery solrQuery = new SolrQuery();
        
        //封装主查询条件
        if(qName!=null && !qName.equals("")){
            //solrQuery.setQuery(qName);
            //关键词  商品名称
            solrQuery.setQuery("p_name:" + qName+"");//^10是查询权重
            
            solrQuery.setStart(0);
            solrQuery.setRows(12);
            //开启高亮
            solrQuery.setHighlight(true);
            solrQuery.addHighlightField("p_name");
            solrQuery.setHighlightSimplePre("<font color='red'>");
            solrQuery.setHighlightSimplePost("</font>");
        }else{
            solrQuery.setStart(0);
            solrQuery.setRows(12);
            solrQuery.setQuery("*:*");
        }
        
        QueryResponse resp = solrServer.query(solrQuery);
        Map<String, Map<String, List<String>>> highlighting = resp.getHighlighting();
        SolrDocumentList results = resp.getResults();
        Result result = new Result();
        List<Product> pList = result.getProductList();
        for (SolrDocument doc : results) {
            Product product = new Product();
            System.out.println(doc.getFieldValuesMap());
            String id = (String) doc.get("id");//id
            Integer product_number = Integer.parseInt(doc.get("p_number")+"");//数量
            String product_name = (String) doc.get("p_name");//商品名称
            Double product_price = (Double.parseDouble(doc.get("p_price")+"")) ;//价格
            String product_catalog_name = (String) doc.get("p_catalog_name");//商品分类名称
            String product_picture = (String) doc.get("p_picture");//图片
            
            //商品ＩＤ
            product.setPid(Integer.valueOf(id));
            //商品名称
            if (null!=highlighting) {
                Map<String, List<String>> map = highlighting.get(id);
                List<String> list = map.get("p_name");
                //String name = (String) doc.get("name_ik");
                product.setName(list.get(0));            
            }else {
                product.setName(product_name);
            }
            
            //图片
            product.setPicture(product_picture);
            //价格
            product.setPrice(product_price);
            //品牌ID
            product.setCatalogName(product_catalog_name);
            //商品数量
            product.setNumber(product_number);
            pList.add(product);
    }
        result.setProductList(pList);
        return result;
    }