java使用mongodb查询数据 Java操作MongoDB插入数据进行模糊查询与in查询功能

/**
   * 公共方法：设置Object类型缓存
   * @author shijing
   * @param param
   * @param sysGuid
   */
  public void setObjData(Map<String,Object> param, String sysGuid, String enumBpd){
    DBObject dbObject = new BasicDBObject();
    dbObject.putAll(param);
    String collectionName = EnumBpd.getBpdType(enumBpd) + sysGuid;
    mongoDao.insertToCol(dbObject,collectionName);
  }
  /**
   * 公共方法：设置List缓存
   * @author shijing
   * @param paramList
   * @param sysGuid
   */
  public void setListData(List<Map<String,Object>> paramList, String sysGuid, String enumBpd){
    List<DBObject> list = new ArrayList<>();
    if(CollectionUtils.isNotNull(paramList)){
      for (Map<String,Object> param : paramList){
        DBObject dbObject = new BasicDBObject();
        dbObject.putAll(param);
        list.add(dbObject);
      }
    }
    String collectionName = EnumBpd.getBpdType(enumBpd) + sysGuid;
    mongoDao.insertToCol(list,collectionName);

public void insertToCol(DBObject document, String collectionName) {
    dropCol(collectionName);
    DBCollection dbCollection = mongoTemplate.createCollection(collectionName);
    dbCollection.insert(document);
  }
  public void insertToCol(List<DBObject> documents, String collectionName) {
    dropCol(collectionName);
    DBCollection dbCollection = mongoTemplate.createCollection(collectionName);
    dbCollection.insert(documents);
  }

/**
   * 通过关键字模糊查询问题和答案库
   * @param param
   * @return
   */
  @Override
  public List<Map<String, Object>> searchQuestionAndAnswerByKeyword(Map<String, Object> param) {
    List<Map<String,Object>> searchList = new ArrayList<>();
    Map<String,Object> userInfo = SessionUtils.getUserInfo();
    String sysGuid = userInfo.get("sys_guid").toString();
    String collectionName = EnumBpd.getBpdType(EnumBpd.HELP_PAGE_LIST.getType())+sysGuid;
    //注释里面这种方式虽然能模糊查询，但是容易漏掉数据，切记切记！！！
    //Pattern pattern = Pattern.compile("^.*" + param.get("keyword") +".*$", Pattern.CASE_INSENSITIVE);
    BasicDBObject query= new BasicDBObject();
    //模糊查询的字段设置
    query.put("page_html", Pattern.compile((String) param.get("keyword")));
    DBCursor dbCursor = mongoDao.findAll(query,collectionName);
    List<DBObject> list = dbCursor.toArray();
    for (DBObject dbObject: list){
      searchList.add(dbObject.toMap());
    }
    //模糊查到的数据进行组装
    return getQuestionAndAnswerList(searchList);
  }
  /**
   * 公共方法：批量—— in方法查询List数据
   * @author shijing
   * @param ids id集合
   * @param paramMap 其他参数
   * @param columnName in字段列名
   * @param collectionName 表名
   * @return
   */
  @Override
  public List<Map<String, Object>> batchSearchPageListByIds(List<String> ids, Map<String,
      Object> paramMap, String columnName, String collectionName) {
    List<Map<String,Object>> searchList = new ArrayList<>();
    BasicDBObject query= new BasicDBObject();
    //批量查询，in
    if (CollectionUtils.isNotEmpty(ids)){
      BasicDBList values = new BasicDBList();
      values.addAll(ids);
      query.put(columnName, new BasicDBObject("$in",values));
    }
    //拼接参数
    if(MapUtils.isNotEmpty(paramMap)){
      for (String mapKey: paramMap.keySet()){
        query.put(mapKey, paramMap.get(mapKey));
      }
    }
    DBCursor dbCursor = mongoDao.findAll(query,collectionName);
    List<DBObject> list = dbCursor.toArray();
    if (dbCursor!=null && dbCursor.size()>0){
      for (DBObject dbObject: list){
        searchList.add(dbObject.toMap());
      }
    }
    return searchList;
  }
  /**
   * 公共方法：通过参数获取List数据
   * @author shijing
   * @param paramMap 参数
   * @param collectionName  表名
   * @return
   */
  @Override
  public List<Map<String, Object>> getListByParam(Map<String, Object> paramMap,String collectionName){
    List<Map<String,Object>> searchList = new ArrayList<>();
    BasicDBObject query= new BasicDBObject();
    //拼接参数
    if(MapUtils.isNotEmpty(paramMap)){
      for (String mapKey: paramMap.keySet()){
        query.put(mapKey, paramMap.get(mapKey));
      }
    }
    DBCursor dbCursor = mongoDao.findAll(query,collectionName);
    List<DBObject> list = dbCursor.toArray();
    if (dbCursor!=null && dbCursor.size()>0){
      for (DBObject dbObject: list){
        searchList.add(dbObject.toMap());
      }
    }
    return searchList;
  }
  /**
   * 公共方法：通过参数获取Object数据
   * @author shijing
   * @param paramMap
   * @param collectionName 表名
   * @return
   */
  @Override
  public Map<String, Object> getObjectByParam(Map<String, Object> paramMap, String collectionName) {
    Map<String,Object> webSiteInfo = new HashMap<>();
    BasicDBObject query= new BasicDBObject();
    //拼接参数
    if(MapUtils.isNotEmpty(paramMap)){
      for (String mapKey: paramMap.keySet()){
        query.put(mapKey, paramMap.get(mapKey));
      }
    }
    DBObject dbObject = mongoDao.findOne(query,collectionName);
    if(dbObject!=null){
      return dbObject.toMap();
    }
    return webSiteInfo;
  }

Pattern pattern = Pattern.compile("^.*" + param.get("keyword") +".*$"

query.put("page_html", Pattern.compile((String) param.get("keyword")));