solr java代码

添加依赖   
<dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-data-solr</artifactId>
    </dependency>

　　

1、controller

 @PostMapping("/solrSearchDemand")
  @ResponseBody
  public JsonResponse solrSearchDemand(@RequestBody SolrDemandSerachPageListRequest request) {
    PageListResponse<DemandSolrModel> responseBody = new PageListResponse<>();
    Pageable pageable = null;
    if (StringUtils.isNotBlank(request.getSort()) && StringUtils.isNotBlank(request.getDirection())) {
      Sort.Order demandSort = new Order(Sort.Direction.valueOf(request.getDirection()), request.getSort());
      Sort sort = new Sort(demandSort);
      pageable = request.getPageable(sort);
    } else {
      pageable = request.getPageable("createTime", Sort.Direction.DESC);
    }
    final Page<DemandSolrModel> page = demandSolrService.filterTitleUsernameContent(request.getTerm(), request.getTagId(), request.getAppId(),request.getHasHot(), pageable);

    if (!page.hasContent()) {
      responseBody.setRecords(Collections.emptyList());
    }
    responseBody.setRecords(page.getContent());
    responseBody.setPage(request.getPage());
    responseBody.setPageSize(request.getPageSize());
    responseBody.setTotalRecords(page.getTotalElements());
    return JsonResponse.success(responseBody);
  }

　　2、SolrDemandSerachPageListRequest  类如下

public class SolrDemandSerachPageListRequest extends PageListRequest {

  /**
   * 标签名查找
   */
  private Integer tagId;

  private Integer appId;

  private Boolean hasHot;

  public Boolean getHasHot() {
    return hasHot;
  }

  public void setHasHot(Boolean hasHot) {
    this.hasHot = hasHot;
  }

  public Integer getTagId() {
    return tagId;
  }

  public void setTagId(Integer tagId) {
    this.tagId = tagId;
  }

  public Integer getAppId() {
    return appId;
  }

  public void setAppId(Integer appId) {
    this.appId = appId;
  }
}

PageListRequest类如下：

import org.apache.commons.lang3.StringUtils;
import org.springframework.data.domain.PageRequest;
import org.springframework.data.domain.Pageable;
import org.springframework.data.domain.Sort;

public class PageListRequest {

    /**
     * 搜索的关键字
     */
    private String term;

    /**
     * 排序的字段
     */
    private String sort;

    /**
     * 排序的方向
     */
    private String direction;

    /**
     * 页码从1开始
     */
    private int page;

    /**
     * 条数
     */
    private int pageSize;

    public String getSort() {
        return sort;
    }

    public void setSort(String sort) {
        this.sort = sort;
    }

    public String getDirection() {
        return direction;
    }

    public void setDirection(String direction) {
        this.direction = direction;
    }

    public int getPage() {
        return page;
    }

    public void setPage(int page) {
        this.page = page;
    }

    public int getPageSize() {
        return pageSize;
    }

    public void setPageSize(int pageSize) {
        this.pageSize = pageSize;
    }

    public String getTerm() {
        return term;
    }

    public void setTerm(String term) {
        this.term = term;
    }

    public Sort.Direction getDirection(Sort.Direction defaultDirection) {
        if (StringUtils.isBlank(direction)) {
            return defaultDirection;
        }
        return Sort.Direction.valueOf(direction);
    }

    public Sort getSort(String defaultSortField, Sort.Direction defaultDirection) {
        if (StringUtils.isNotBlank(sort)) {
            Sort sort = new Sort(getDirection(defaultDirection), this.sort);
            return sort;
        } else {
            Sort sort = new Sort(getDirection(defaultDirection), defaultSortField);
            return sort;
        }
    }

    public Pageable getPageable(String defaultSortField, Sort.Direction defaultDirection) {
        // Pageable 页码是从0开始的,所以要减1操作
        PageRequest pageRequest = new PageRequest(this.page - 1, this.pageSize, getSort(defaultSortField, defaultDirection));
        return pageRequest;
    }

    public Pageable getPageable(Sort defaultSort) {
        // Pageable 页码是从0开始的,所以要减1操作
        PageRequest pageRequest = new PageRequest(this.page - 1, this.pageSize, defaultSort);
        return pageRequest;
    }
}

　　

3、DemandSolrModel如下：

import java.io.Serializable;
import java.util.Date;
import java.util.List;
import org.apache.solr.client.solrj.beans.Field;
import org.springframework.data.annotation.Id;
import org.springframework.data.solr.core.mapping.SolrDocument;
/*

solrCoreName = "demand"

对应服务器的名字，这里的一定要看我上一篇文章的solr文章里面的managed-schema配置文件里的第（1）点*/
 @SolrDocument(solrCoreName = "demand") 
public class DemandSolrModel implements Serializable {
 private static final long serialVersionUID = 1L; 
@Id 
@Field 
private int id;
 @Field
 private int userId;
 @Field 
private int appId;
 @Field 
private String content; 
@Field 
private Boolean hasHot;
 @Field
 private Date createTime;
 @Field 
private String title;
 @Field 
private String hyperlink;
 @Field 
private String fileUrl;
 @Field 
private String avatarImg; 
 @Field
 private String username;
 @Field 
private List<String> tagName;
 @Field
 private List<Integer> tagId; 

get set 省

　　3、PageListResponse如下

import java.util.List;

public class PageListResponse<E> {

    /**
     * 列表数据
     */
    private List<E> records;

    /**
     * 总的数量
     */
    private long totalRecords;


    private int page;

    private int pageSize;

    public List<E> getRecords() {
        return records;
    }

    public void setRecords(List<E> records) {
        this.records = records;
    }


    public long getTotalRecords() {
        return totalRecords;
    }

    public void setTotalRecords(long totalRecords) {
        this.totalRecords = totalRecords;
    }

    /*
     * (non-Javadoc)
     * @see org.springframework.data.domain.Page#getTotalPages()
     */
    public int getTotalPages() {
        return pageSize == 0 ? 1 : (int) Math.ceil((double) totalRecords / (double) pageSize);
    }

    public int getPage() {
        return page;
    }

    public void setPage(int page) {
        this.page = page;
    }

    public int getPageSize() {
        return pageSize;
    }

    public void setPageSize(int pageSize) {
        this.pageSize = pageSize;
    }
}

4、service如下：

import com.messcat.imgrnt.solr.model.DemandSolrModel;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;

public interface DemandSolrService {

  Page<DemandSolrModel> filterTitleUsernameContent(String term, Integer tagId, Integer appId,Boolean hasHot, Pageable pageable);

  void indexDemand(int id);
}

　　

5、service实现类如下：

import com.messcat.common.Constants;
import com.messcat.framework.common.util.CommonsUtils;
import com.messcat.imgrnt.custom.dao.DemandSolrCustomDao;
import com.messcat.imgrnt.service.DemandSolrService;
import com.messcat.imgrnt.solr.model.DemandSolrModel;
import com.messcat.imgrnt.solr.repo.DemandSolrRepository;
import javax.annotation.Resource;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;
import org.springframework.data.solr.core.SolrTemplate;
import org.springframework.data.solr.core.query.AnyCriteria;
import org.springframework.data.solr.core.query.Criteria;
import org.springframework.data.solr.core.query.SimpleQuery;
import org.springframework.stereotype.Component;

@Component
public class DemandSolrServiceImpl implements DemandSolrService {

  @Resource
  private SolrTemplate solrTemplate;
  @Autowired
  private DemandSolrCustomDao demandSolrCustomDao;
  @Autowired
  private DemandSolrRepository demandSolrRepository;

  @Override
  public Page<DemandSolrModel> filterTitleUsernameContent(String term, Integer tagId, Integer appId,Boolean hasHot, Pageable pageable) {
    SimpleQuery simpleQuery = new SimpleQuery();
    /**
     * 如果输入框的搜索条件不为空，则把条件加进去
     */
    if (StringUtils.isNotBlank(term)) {
      /*复制域*/
      Criteria termCriteria = new Criteria(Constants.FIELD_TEXT).expression(CommonsUtils.quote(term));
      simpleQuery.addCriteria(termCriteria);
    }
    if (tagId != null) {
      Criteria contentCriteria = new Criteria("tagId").in(tagId);
      simpleQuery.addCriteria(contentCriteria);
    }
    if (appId != null) {
      Criteria contentCriteria = new Criteria("appId").is(appId);
      simpleQuery.addCriteria(contentCriteria);
    }
    if (hasHot != null) {
          Criteria contentCriteria = new Criteria("hasHot").is(hasHot);
          simpleQuery.addCriteria(contentCriteria);
      }
    if (simpleQuery.getCriteria() == null) {
      simpleQuery.addCriteria(AnyCriteria.any());
    }
    return solrTemplate.queryForPage(simpleQuery.setPageRequest(pageable), DemandSolrModel.class);
  }

  @Override
  public void indexDemand(int id) {
    /*1：根据新增的demand 的id ,从demang,demand_rel,demand_tag_rel,demand_tag,user表获取数据*/
    DemandSolrModel demandSolrModel = demandSolrCustomDao.selectDemandSolrByDemandId(id);
    /*2：创建索引*/
    if (demandSolrModel == null) {
      return;
    }
    demandSolrRepository.save(demandSolrModel);
  }
}

　　6、SolrTemplate 配置文件如下：

import com.messcat.common.solr.MyHttpSolrClient;
import org.apache.http.client.HttpClient;
import org.apache.solr.client.solrj.SolrClient;
import org.apache.solr.client.solrj.impl.BinaryResponseParser;
import org.apache.solr.client.solrj.impl.CloudSolrClient;
import org.springframework.boot.autoconfigure.solr.SolrProperties;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.solr.core.SolrTemplate;
import org.springframework.data.solr.repository.config.EnableSolrRepositories;
import org.springframework.util.StringUtils;

@SolrDocument(solrCoreName = "demand") 

/*basePackages是指solr的实体类model所在的文件夹，因为要映射服务器 @SolrDocument=(solrCoreName="demand")*/
@Configuration
@EnableSolrRepositories(basePackages = {"com.messcat.imgrnt.solr"})
@EnableConfigurationProperties(SolrProperties.class)
public class SolrConfiguration {

  private final SolrProperties properties;

  public SolrConfiguration(SolrProperties properties) {
    this.properties = properties;
  }

  @Bean
  public SolrClient solrClient(HttpClient httpClient) {
    return createSolrClient(httpClient);
  }

  private SolrClient createSolrClient(HttpClient httpClient) {
    if (StringUtils.hasText(this.properties.getZkHost())) {
      return new CloudSolrClient(this.properties.getZkHost());
    }
    return new MyHttpSolrClient(properties.getHost(), httpClient, new BinaryResponseParser());
  }

  @Bean
  public SolrTemplate solrTemplate(SolrClient server) throws Exception {
    return new SolrTemplate(server);
  }
}

　　注：有些包我没弄出来，所以有些代码是导包道不了，是可以用其它替代的，自己自行替换，要看自己的学习能力了