Spring整合MongoDB增删改查及批量新增修改

Posted Lossdate

tags:

篇首语：本文由小常识网(cha138.com)小编为大家整理，主要介绍了Spring整合MongoDB增删改查及批量新增修改相关的知识，希望对你有一定的参考价值。

简单封装了下基础的增删改查以及批量操作，方便后续的拓展

一、配置

  1. applicationContext.xml

    #beans添加
 xmlns:mongo="http://www.springframework.org/schema/data/mongo"
 http://www.springframework.org/schema/data/mongo http://www.springframework.org/schema/data/mongo/spring-mongo-1.5.xsd

#配置
<mongo:mongo id="mongo" replica-set="$mongo.hostPort">
		<!-- 一些连接属性的设置 -->
		<mongo:options
				connections-per-host="$mongo.connectionsPerHost"
				threads-allowed-to-block-for-connection-multiplier="$mongo.threadsAllowedToBlockForConnectionMultiplier"
				connect-timeout="$mongo.connectTimeout"
				max-wait-time="$mongo.maxWaitTime"
				auto-connect-retry="$mongo.autoConnectRetry"
				socket-keep-alive="$mongo.socketKeepAlive"
				socket-timeout="$mongo.socketTimeout"
				slave-ok="$mongo.slaveOk"
				write-number="1"
				write-timeout="0"
				write-fsync="true" />
	</mongo:mongo>

	<mongo:db-factory dbname="database" mongo-ref="mongo" />

	<bean id="mongoTemplate"
		  class="org.springframework.data.mongodb.core.MongoTemplate">
		<constructor-arg name="mongo" ref="mongo" />
		<constructor-arg name="databaseName" value="test" />
	</bean>

    mongo.hostPort=127.0.0.1:27017
mongo.connectionsPerHost=8
mongo.threadsAllowedToBlockForConnectionMultiplier=4
#连接超时时间
mongo.connectTimeout=1000
#等待时间
mongo.maxWaitTime=1500
mongo.autoConnectRetry=true
mongo.socketKeepAlive=true
#Socket超时时间
mongo.socketTimeout=1500
mongo.slaveOk=true

二、代码整合

  1. 接口

    /*
 * BaseEntity 为基础实体类，参数随意
 */
public interface BaseMongoInterface<T extends BaseEntity> 

    /**
     * 按 id 查询
     * @param clazz Class
     * @param id 查询的id
     * @param collectionName collectionName
     * @return Entity
     */
    T get(final Class<T> clazz, final String id, final String collectionName);

    /**
     * insert
     * @param entity new Entity
     * @param collectionName collectionName
     * @return 1
     */
    int insert(final T entity, final String collectionName);

    /**
     * update
     * @param clazz Class
     * @param id update 的 id
     * @param needUpdateParams 需要更新的字段和值
     * @param collectionName collectionName
     * @return count
     */
    int update(final Class<T> clazz, String id, Map<String, Object> needUpdateParams, final String collectionName);

    /**
     * find
     * @param clazz Class
     * @param whereParams 查询条件
     * @param sortParam 排序字段
     * @param sortWay 排序方式（"ASC", "DESC"）
     * @param collectionName collectionName
     * @return List<Entity>
     */
    List<T> find(final Class<T> clazz, Map<String, Object> whereParams, String sortParam, String sortWay, final String collectionName);

    /**
     * find one
     * @param clazz Class
     * @param whereParams 查询条件
     * @param sortParam 排序字段
     * @param sortWay 排序方式（"ASC", "DESC"）
     * @param collectionName collectionName
     * @return Entity
     */
    T findOne(final Class<T> clazz, Map<String, Object> whereParams, String sortParam, String sortWay, final String collectionName);

    /**
     * 根据实体 批量 insert
     * @param list 批量插入的实体 list
     * @param collectionName collectionName
     * @return count
     */
    int insertBatch(final List<T> list, final String collectionName);

    /**
     * 根据查询条件 批量 update
     * @param clazz Class
     * @param whereParams 查询条件
     * @param needUpdateParams 需要更新的字段
     * @param collectionName collectionName
     * @return count
     */
    int updateBatch(final Class<T> clazz, Map<String, Object> whereParams, Map<String, Object> needUpdateParams, final String collectionName);

    /**
     * 根据实体 批量 update
     * @param list 需要 update 的实体 list
     * @param collectionName collectionName
     * @param upsert 实体 id 不存在的情况是否需要插入
     * @param needNullParam 是否更新实体内为null的字段
     * @return count
     */
    int updateBatch(final List<T> list, final String collectionName, boolean upsert, boolean needNullParam);

    /**
     * 分页查询
     * @param clazz Class
     * @param whereParams 查询条件
     * @param sortParam 排序字段
     * @param sortWay 排序方式（"ASC", "DESC"）
     * @param collectionName collectionName
     * @param limitStart 起始
     * @param pageSize 查询多少条
     * @return List<Entity>
     */
    List<T> page(final Class<T> clazz, Map<String, Object> whereParams, String sortParam, String sortWay, final String collectionName, int limitStart, int pageSize);

    /**
     * 查询数量
     * @param clazz Class
     * @param whereParams 查询条件
     * @param collectionName collectionName
     * @return count
     */
    long count(final Class<T> clazz, Map<String, Object> whereParams, final String collectionName);

    /**
     * 删除
     * @param clazz Class
     * @param whereParams 查询条件
     * @param collectionName collectionName
     * @return count
     */
    int remove(final Class<T> clazz, Map<String, Object> whereParams, final String collectionName);

  2. 批量更新工具类

    public class BathUpdateOptions 
    private Query query;
    private Update update;
    private boolean upsert = false;
    private boolean multi = false;

    public BathUpdateOptions() 
    

    public BathUpdateOptions(Query query, Update update, boolean upsert, boolean multi) 
        this.query = query;
        this.update = update;
        this.upsert = upsert;
        this.multi = multi;
    
	
	//getter and setter ...


    public class BatchUpdateHelper 

    public static <T> Map<String, Object> beanToMap(T bean, boolean needNullParam) 
        Map<String, Object> map = Maps.newHashMap();
        if (bean != null) 
            BeanMap beanMap = BeanMap.create(bean);
            for (Object key : beanMap.keySet()) 
                if(!needNullParam && beanMap.get(key) == null)  continue; 
                map.put(key + "", beanMap.get(key));
            
        
        return map;
    

    public static int bathUpdate(MongoTemplate mongoTemplate,
                                 List<BathUpdateOptions> options,
                                 String collectionName) 
        return doBathUpdate(mongoTemplate.getCollection(collectionName), collectionName, options, true);
    

    private static int doBathUpdate(DBCollection dbCollection, String collName, List<BathUpdateOptions> options, boolean ordered) 
        DBObject command = new BasicDBObject();
        command.put("update", collName);
        List<BasicDBObject> updateList = new ArrayList<>();
        for (BathUpdateOptions option : options) 
            BasicDBObject update = new BasicDBObject();
            update.put("q", option.getQuery().getQueryObject());
            update.put("u", option.getUpdate().getUpdateObject());
            update.put("upsert", option.isUpsert());
            update.put("multi", option.isMulti());
            updateList.add(update);
        
        command.put("updates", updateList);
        command.put("ordered", ordered);
        CommandResult commandResult = dbCollection.getDB().command(command);
        return Integer.parseInt(commandResult.get("n").toString());

  3. 功能实现

    @Component
public abstract class BaseMongoInterfaceImpl<T extends BaseEntity> implements BaseMongoInterface<T> 

    @Autowired
    private MongoTemplate mongoTemplate;

    @Override
    public T get(@NotNull Class<T> clazz,
                 @NotNull String id,
                 @NotNull String collectionName) 
        return mongoTemplate.findById(id, clazz, collectionName);
    

    @Override
    public int insert(@NotNull T entity,
                      @NotNull String collectionName) 
        mongoTemplate.insert(entity, collectionName);
        return 1;
    

    @Override
    public int update(@NotNull Class<T> clazz,
                      @NotNull String id,
                      @NotNull Map<String, Object> needUpdateParams,
                      @NotNull String collectionName) 
        Query query = new Query();
        query.addCriteria(Criteria.where("_id").is(id));
        Update update = new Update();
        needUpdateParams.forEach(update::set);
        WriteResult writeResult = mongoTemplate.updateFirst(query, update, clazz, collectionName);
        return writeResult.getN();
    

    @Override
    public List<T> find(@NotNull Class<T> clazz,
                        Map<String, Object> whereParams,
                        String sortParam,
                        String sortWay,
                        @NotNull String collectionName) 
        Query query = getFindQuery(whereParams, sortParam, sortWay);

        return mongoTemplate.find(query, clazz, collectionName);
    

    private Query getFindQuery(Map<String, Object> whereParams, String sortParam, String sortWay) 
        Query query = new Query();
        if (whereParams != null && whereParams.size() > 0) 
            AtomicReference<Criteria> criteria = new AtomicReference<>();
            AtomicInteger index = new AtomicInteger();
            whereParams.forEach((k,v) -> 
                if(k.equals("id"))  k = "_id"; 
                if(index.get() == 0) 
                    criteria.set(Criteria.where(k).is(v));
                 else 
                    criteria.get().and(k).is(v);
                
                index.getAndIncrement();
            );
            query.addCriteria(criteria.get());
        

        if(StringUtils.isNotBlank(sortParam)) 
            if(sortWay == null) sortWay = "ASC";
            if("ASC".equals(sortWay)) 
                query.with(new Sort(new Sort.Order(Sort.Direction.ASC, sortParam)));
             else 
                query.with(new Sort(new Sort.Order(Sort.Direction.DESC, sortParam)));
            
        

        return query;
    

    @Override
    public T findOne(@NotNull Class<T> clazz,
                     @NotNull Map<String, Object> whereParams,
                     String sortParam,
                     String sortWay,
                     @NotNull String collectionName) 
        Query query = getFindQuery(whereParams, sortParam, sortWay);
        query.skip(0);
        query.limit(1);
        List<T> dataList = mongoTemplate.find(query, clazz, collectionName);
        return dataList.isEmpty() ? null : dataList.get(0);
    

	/**
	 * 批量操作批次最大数
	 */
	public static final Integer BATCH_CEILING = 300;
	
    @Override
    public int insertBatch(@NotNull List<T> list,
                           @NotNull String collectionName) 
        List<List<T>> batchList = new ArrayList<>();
        int len = BATCH_CEILING;
        if(!list.isEmpty()) 
            if(list.size() > len) 
                //优化insertBatch,切割处理
                int size = list.size();
                int count = (size + len - 1) / len;
                for (int i = 0; i < count; i++) 
                    List<T> subList = list.subList(i * len, (Math.min((i + 1) * len, size)));
                    batchList.add(subList);
                
                if(batchList.size() > 0) 
                    for (List<T> subList : batchList) 
                        mongoTemplate.insert(subList, collectionName);
                    
                
             else 
                mongoTemplate.insert(list, collectionName);
            
        

        return list.size();
    

    @Override
    public int updateBatch(@NotNull Class<T> clazz,
                           @NotNull Map<String, Object> whereParams,
                           @NotNull Map<String, Object> needUpdateParams,
                           @NotNull String collectionName) 
        Query query = new Query();
        AtomicReference<Criteria> criteria = new AtomicReference<>();
        AtomicInteger index = new AtomicInteger();
        whereParams.forEach((k,v) -> 
            if(index.get() == 0) 
                criteria.set(Criteria.where(k).is(v));
             else 
                criteria.get().and(k).is(v);
            
            index.getAndIncrement();
        );
        query.addCriteria(criteria.get());

        Update update = new Update();
        needUpdateParams.forEach(update::set);

        WriteResult writeResult = mongoTemplate.updateMulti(query, update, clazz, collectionName);

        return writeResult.getN();
    

    @Override
    public int updateBatch(@NotNull List<T> list,
                           @NotNull String collectionName,
                           @NotNull boolean upsert,
                           @NotNull boolean needNullParam) 
        int result = 0;
        List<BathUpdateOptions> optionsList = new ArrayList<>();
        Map<String, Object> needUpdateParams;
        for (T entity : list) 
            if(StringUtils.isBlank(entity.getId()))  continue; 
            Query query = new Query();
            query.addCriteria(Criteria.where("_id").is(entity.getId()));
            entity.setId(null);
            needUpdateParams = BatchUpdateHelper.beanToMap(entity, needNullParam);
            Update update = new Update();
            needUpdateParams.forEach(update::set);

            optionsList.add(new BathUpdateOptions(query, update, upsert, true));
        

        List<List<BathUpdateOptions>> batchList = new ArrayList<>();
        int len = BATCH_CEILING;
        if(!optionsList.isEmpty()) 
            if(optionsList.size() > len) 
                //优化insertBatch,切割处理
                int size = optionsList.size();
                int count = (size + len - 1) / len;
                for (int i = 0; i < count; i++) 
                    List<BathUpdateOptions> subList = optionsList.subList(i * len, (Math.min((i + 1) * len, size)));
                    batchList.add(subList);
                
                if(batchList.size() > 0) 
                    for (List<BathUpdateOptions> subList : batchList) 
                        result += BatchUpdateHelper.bathUpdate(mongoTemplate, subList, collectionName);
                    
                
             else 
                result = BatchUpdateHelper.bathUpdate(mongoTemplate, optionsList, collectionName);
            
        

        return result;
    

    @Override
    public List<T> page(@NotNull Class<T> clazz,
                        Map<String, Object> whereParams,
                        String sortParam,
                        String sortWay,
                        @NotNull final String collectionName,
                        @NotNull int limitStart,
                        @NotNull int pageSize) 
        Query query = getFindQuery(whereParams, sortParam, sortWay);
        query.skip(limitStart);
        query.limit(pageSize);
        return mongoTemplate.find(query, clazz, collectionName);
    

    @Override
    public long count(@NotNull Class<T> clazz,
                      @NotNull Map<String, Object> whereParams,
                      @NotNull final String collectionName) 
        Query query = getFindQuery(whereParams, null, null);
        return mongoTemplate.count(query, clazz, collectionName);
    

    @Override
    public int remove(@NotNull Class<T> clazz,
                      @NotNull Map<String, Object> whereParams,
                      @NotNull final String collectionName) 
        Query query = getFindQuery(whereParams, null, null);
        WriteResult remove = mongoTemplate.remove(query, clazz, collectionName);
        return remove.getN();

以上是关于Spring整合MongoDB增删改查及批量新增修改的主要内容，如果未能解决你的问题，请参考以下文章

Spring整合MongoDB增删改查及批量新增修改

04-springboot整合elasticsearch初识-简单增删改查及复杂排序，分页，聚合操作

python课堂整理34----类的增删改查及实例属性增删改查

简单的增删改查及数据分页

Python字典的初识增删改查及嵌套

yii2增删改查及AR的理解