public static void addIndex(){HttpSolrClient server = solrServer.getServer();List<ProductBO> list = new ArrayList<>();ProductBO bo1 = new ProductBO();bo1.setId("1001");bo1.setTitle("海尔模卡 (MOOKA) 65K5 65寸安卓智能网络窄边框全高清LED液晶电视");bo1.setMajor_s("家用电器");bo1.setSubMajor_s("电视");bo1.setBrand_s("海尔");bo1.setModel_s("65K5");bo1.setPrice_i(5400);list.add(bo1);bo1 = new ProductBO();bo1.setId("1002");bo1.setTitle("三星 (SANSUNG) UA55JU5900JXXZ 55英寸 4K超高清智能 LED液晶电视 黑色");bo1.setMajor_s("家用电器");bo1.setSubMajor_s("电视");bo1.setModel_s("UA55JU5900");bo1.setBrand_s("三星");bo1.setPrice_i(6400);list.add(bo1);bo1 = new ProductBO();bo1.setId("2001");bo1.setTitle("格力(GREE) 大1匹 变频 Qbo 壁挂式冷暖空调 KFR-26GW/(26596)FNAa-A3");bo1.setMajor_s("家用电器");bo1.setSubMajor_s("空调");bo1.setBrand_s("格力");bo1.setModel_s("KFR-26GW/(26596)FNAa-A3");bo1.setPrice_i(7700);list.add(bo1);bo1 = new ProductBO();bo1.setId("2002");bo1.setTitle("奥克斯(AUX) 正1.5匹 冷暖 定速 隐藏式显示屏 壁挂式 空调 KFR-35GW/HFJ+3");bo1.setMajor_s("家用电器");bo1.setSubMajor_s("空调");bo1.setBrand_s("奥克斯");bo1.setModel_s("KFR-35GW/HFJ+3");bo1.setPrice_i(6600);list.add(bo1);bo1 = new ProductBO();bo1.setId("2003");bo1.setTitle("海尔(HAIER) 1.5匹 变频 静音空调 冷暖 壁挂式空调 KFR-35GW/01JDA23A");bo1.setMajor_s("家用电器");bo1.setSubMajor_s("空调");bo1.setBrand_s("海尔");bo1.setModel_s("KFR-35GW/01JDA23A");bo1.setPrice_i(9600);list.add(bo1);try {server.addBeans(list);server.commit();} catch (SolrServerException | IOException e) {e.printStackTrace();}}

package morelikethis;
import java.io.Serializable;
import org.apache.solr.client.solrj.beans.Field;
public class ProductBO implements Serializable{private static final long serialVersionUID = 1L;@Fieldprivate String id;@Fieldprivate String title;@Fieldprivate String major_s;@Fieldprivate String subMajor_s;@Fieldprivate String brand_s;@Fieldprivate int price_i;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 getMajor_s() {return major_s;}public void setMajor_s(String major_s) {this.major_s = major_s;}public String getSubMajor_s() {return subMajor_s;}public void setSubMajor_s(String subMajor_s) {this.subMajor_s = subMajor_s;}public String getBrand_s() {return brand_s;}public void setBrand_s(String brand_s) {this.brand_s = brand_s;}public int getPrice_i() {return price_i;}public void setPrice_i(int price_i) {this.price_i = price_i;}
}

package morelikethis;
import java.util.ArrayList;
import java.util.List;
import org.apache.solr.client.solrj.SolrQuery;
import org.apache.solr.client.solrj.impl.HttpSolrClient;
import org.apache.solr.client.solrj.response.QueryResponse;
import org.apache.solr.common.SolrDocument;
import org.apache.solr.common.SolrDocumentList;
import org.apache.solr.common.util.SimpleOrderedMap;
import solr.solrServer;
public class SolrMlt {@SuppressWarnings("unchecked")public static void search(){HttpSolrClient server = solrServer.getServer();SolrQuery query = new SolrQuery();List<ProductBO> articles = new ArrayList<ProductBO>();query.setQuery("id:1001").setParam("fl", "id,title,brand_s")//返回的字段.setParam("mlt", "true")//打开组建.setParam("mlt.fl", "title")//用于判断相似的字段.setParam("mlt.mindf", "1")//过滤文档数小于1的文档集合.setParam("mlt.mintf","1")//过滤单个文档中关键字小于1的文档.setParam("mlt.count", "10");QueryResponse queryResponse;try {queryResponse = server.query(query);SimpleOrderedMap<SolrDocumentList> mltResults = (SimpleOrderedMap<SolrDocumentList>) queryResponse.getResponse().get("moreLikeThis");for(int i=0;i<mltResults.size();i++){SolrDocumentList items = mltResults.getVal(i);for (SolrDocument doc : items) {String id = doc.getFieldValue("id").toString();if(id.equals("1001")){continue;//排除自身
                    }System.out.println(doc.getFieldValue("title").toString());}}} catch (Exception e) {e.printStackTrace();}}public static void main(String[] args) {search();}
}