Solr在分布式环境中的应用

#第一个tomcat（写在开头即可,分别是zookeeper集群的ip+port,分片片名,总分骗术,总分组数）
JAVA_OPTS="-DzkHost=192.168.179.131:2181,192.168.179.131:2182,192.168.179.131:2183 -Dbootstrap_confdir=/usr/local/solrcloud/solrhome01/bjsxt/conf -Dcollection.configName=szxy-DnumShards=2 -DreplicationFactor=2"

#第二第三第四个tomctat
JAVA_OPTS="-DzkHost=192.168.179.131:2181,192.168.179.131:2182,192.168.179.131:2183 -DnumShards=2 -DreplicationFactor=2" 

 <!-- 实例化访问solr集群的api对象  -->
   <bean id="solrServer" class="org.apache.solr.client.solrj.impl.CloudSolrServer">
   		<constructor-arg name="zkHost" value="192.168.179.128:2181,192.168.179.128:2182,192.168.179.128:2183">
	</constructor-arg>
   </bean>

package ah.szxy.search.entity;


import org.apache.solr.client.solrj.beans.Field;

/**
 * 完成对索引库结果的封装
 * 
 * @author chy
 *
 */
public class Item {

	@Field("id")
	private String id;
	@Field("title")
	private String title;
	@Field("sell_point")
	private String sell_point;
	@Field("price")
	private Long price;
	@Field("image")
	private String image;
	@Field("category_name")
	private String category_name;

	public String getId() {
		return id;
	}

	public void setId(String id) {
		this.id = id;
	}

	public String getTitle() {
		return title;
	}

	public void setTitle(String title) {
		this.title = title;
	}

	public String getSell_point() {
		return sell_point;
	}

	public void setSell_point(String sell_point) {
		this.sell_point = sell_point;
	}

	public Long getPrice() {
		return price;
	}

	public void setPrice(Long price) {
		this.price = price;
	}

	public String getImage() {
		return image;
	}

	public void setImage(String image) {
		this.image = image;
	}

	public String getCategory_name() {
		return category_name;
	}

	public void setCategory_name(String category_name) {
		this.category_name = category_name;
	}
	
	/**
	 * 用于将获取到的image的url分开 ,然后封装成数组
	 * @return
	 */
	public String[] getImages() {
		String[] images = image.split(",");
		return images;
	}
}

package ah.szxy.ego.search.service.impl;

import java.util.List;
import java.util.Map;

import org.apache.solr.client.solrj.SolrQuery;
import org.apache.solr.client.solrj.beans.DocumentObjectBinder;
import org.apache.solr.client.solrj.response.QueryResponse;
import org.apache.solr.common.SolrDocumentList;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.StringUtils;

import ah.szxy.ego.rpc.pojo.TbItem;
import ah.szxy.ego.rpc.service.ItemService;
import ah.szxy.ego.search.dao.ItemDao;
import ah.szxy.ego.search.service.SearchItemService;
import ah.szxy.search.entity.Item;
import ah.szxy.search.entity.SearchResult;

@Service
public class SearchItemServiceImpl implements SearchItemService {
	@Autowired
	private ItemDao itemDao;
	@Autowired
	private ItemService itemServiceProxy;
	
	@Override
	public SearchResult loadItemService(String item_keywords, Integer page) {
		SolrQuery params = new SolrQuery();

		// 设置默认查询字段
		params.set("df", "item_keywords");

		
		// 设置查询条件
		if (!StringUtils.isEmpty(item_keywords)) {
			params.setQuery(item_keywords);
		} else {
			params.set("q", "*:*");
		}

		// 指定分页参数
		Integer rows = 20;
		// 进行最小页判断
		if (page < 1) {
			page = 1;
		}
		// 进行最大页判断
		Integer maxpage = 100;
		if (page > maxpage) {
			page = maxpage;
		}
		Integer start = (page - 1) * rows;
		params.setStart(start);
		params.setRows(rows);

		// 设定高亮参数
		params.setHighlight(true);
		params.addHighlightField("title");
		params.setHighlightSimplePre("<font color='red'>");
		params.setHighlightSimplePost("</font>");
		// 调用dao方法，进行索引库查询
		QueryResponse response = itemDao.loadItem(params);

		// 获得本次查询到的文档集合
		SolrDocumentList docList = response.getResults();

		// 获得本次查询的高亮数据
		Map<String, Map<String, List<String>>> hlts = response.getHighlighting();

		// 获得本次查询到的总记录数
		long total = docList.getNumFound();

		// 创建List<Item>对象
		// List<Item> list=new ArrayList<>();

		// 将docList转化为List<Item>
		DocumentObjectBinder binder = new DocumentObjectBinder();
		List<Item> list = binder.getBeans(Item.class, docList);

		for (Item t : list) {
			String id = t.getId();
			// 获得某个商品信息的高亮数据
			Map<String, List<String>> map = hlts.get(id);
			// 获得某个商品的某个字段的高亮数据
			List<String> lts = map.get("title");
			if (lts != null && lts.size() > 0) {
				t.setTitle(lts.get(0));
			}
		}

		SearchResult result = new SearchResult();
		result.setMaxpage(Long.parseLong(String.valueOf(maxpage)));
		result.setTotal(total);
		result.setList(list);
		return result;
	}

}