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<dependency> <groupId>org.mongodb</groupId> <artifactId>mongodb-driver</artifactId> <version>3.2.2</version> </dependency>
import java.util.ArrayList; import org.bson.Document; import java.util.List; import com.mongodb.MongoClient; import com.mongodb.MongoCredential; import com.mongodb.ServerAddress; import com.mongodb.client.MongoCollection; import com.mongodb.client.MongoCursor; import com.mongodb.client.MongoDatabase; import com.mongodb.client.FindIterable; public class MongodbAppHbaseTest { public static void main(String[] args){ try { //连接到MongoDB服务 如果是远程连接可以替换“localhost”为服务器所在IP地址 //ServerAddress()两个参数分别为 服务器地址 和 端口 ServerAddress serverAddress = new ServerAddress("1.1.1.1",27017); List<ServerAddress> addrs = new ArrayList<ServerAddress>(); addrs.add(serverAddress); //MongoCredential.createScramSha1Credential()三个参数分别为 用户名 数据库名称 密码 MongoCredential credential = MongoCredential.createScramSha1Credential("xxx", "xxx", "xxx".toCharArray()); List<MongoCredential> credentials = new ArrayList<MongoCredential>(); credentials.add(credential); //通过连接认证获取MongoDB连接 MongoClient mongoClient = new MongoClient(addrs, credentials); //连接到数据库 MongoDatabase mongoDatabase = mongoClient.getDatabase("name"); System.out.println("Connect to database successfully"); // mongoDatabase.createCollection("xxx"); // System.out.println("集合创建成功"); MongoCollection<Document> collection = mongoDatabase.getCollection("xxx"); System.out.println("集合 xxx选择成功"); //检索所有文档 /** * 1. 获取迭代器FindIterable<Document> * 2. 获取游标MongoCursor<Document> * 3. 通过游标遍历检索出的文档集合 * */ FindIterable<Document> findIterable = collection.find(); MongoCursor<Document> mongoCursor = findIterable.iterator(); int i=0; while(mongoCursor.hasNext()){ System.out.println(mongoCursor.next()); i++; } System.out.println("i="+i); } catch (Exception e) { System.err.println( e.getClass().getName() + ": " + e.getMessage() ); } } }
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原文地址:http://www.cnblogs.com/zhengchunhao/p/5684166.html