importorg.jongo.MongoCursor;//导入依赖的package包/类publicstaticOptional<List<ModerationLog>> getMessageLog(CurseGUID channelId, Date eventTime) {try{ List<ModerationLog> commandRet =newArrayList<>();MongoCursor<ModerationLog> commands = jongo.getCollection(MONGO_MODERATION_LOGGING_COLLECTION) .find("...
while(cursor.hasNext()){ Document docu = cursor.next(); System.out.println(docu.get("username")+"\t"+docu.get("userage")+"\t"+docu.get("userdesc")+"\t"+docu.get("userlike")); } } 3.3.9 逻辑运算符-$or /** * 查询用户要求username是list,或者userage是20 或者 userdesc是Very G...
只要10条数据,排序(类mysql orderby) 再建一个BasicDBObject即可,-1表示倒序DBCursor cursor = collection.find(filter_dbobject).limit(10).sort(newBasicDBObject("create_time",-1));//把结果集输出成list类型List<DBObject> list=cursor.toArray();System.out.println(list.size());//list的长度System....
import com.mongodb.client.MongoCursor; import com.mongodb.client.MongoDatabase; import org.bson.Document; import java.util.ArrayList; import java.util.List; publicclassMongoDBConnection { //不认证直接链接数据库 public MongoClientgetConn(){ MongoClient mongoClient =new MongoClient("localhost",27017...
然后java示例 publicvoidloopCollection(){StringcollectionName="test_table";// 获取集合MongoCollection<Document>collection=mongoTemplate.getCollection(collectionName);// 执行查询,获取游标MongoCursor<Document>cursor=collection.find().iterator();// 遍历游标while(cursor.hasNext()){Documentdocument=cursor.next(...
cursor.close(); }returnnull; } 开发者ID:wxz1211,项目名称:dooo,代码行数:34,代码来源:MongodbDataAccess.java 示例2: getBookingsByUser ▲点赞 3▼ importcom.mongodb.client.MongoCursor;//导入依赖的package包/类@OverridepublicList<String>getBookingsByUser(String user){ ...
然后java示例 publicvoidloopCollection(){StringcollectionName="test_table";// 获取集合MongoCollection<Document>collection=mongoTemplate.getCollection(collectionName);// 执行查询,获取游标MongoCursor<Document>cursor=collection.find().iterator();// 遍历游标while(cursor.hasNext()){Documentdocument=cursor.next(...
1、基于官方mongo-java-driver.2.9.1,在项目中pom依赖 org.mongodb mongo-java-driver 2.9.1 2、mongodb启动 在win7-32中 mongod.exe --help mongod.exe --dbpath D:\mongodb\data\db --auth -logpath D:\mongodb\log.log 这里指定了数据库位置,--auth设置权限,这样访问mongo的所有数据库就需要授权...
java中MongoCursor的操作 java monitor的用法 文章目录 一、阅读本文须知 二、Monitor的特性 三、实现Monitor的三要素 四、Java中Monitor的实现 一、阅读本文须知 信号量(Semaphore):在多线程环境下使用的一种设施,可以用来保证两个或多个关键代码段不被并发调用。在进入一个关键代码段之前,线程必须获取一个信号量;...
getServerCursor @Nullable ServerCursor getServerCursor() Returns the server cursor, which can be null if the no cursor was created or if the cursor has been exhausted or killed. Returns: the ServerCursor, which can be null. getServerAddress ServerAddress getServerAddress() Returns the server ...