MongoDB操作类封装实例代码

package com.fun.mongodb;
 
import com.fun.frame.SourceCode;
import com.mongodb.MongoClient;
import com.mongodb.MongoClientURI;
import com.mongodb.MongoCredential;
import com.mongodb.ServerAddress;
import com.mongodb.client.MongoCollection;
import com.mongodb.client.MongoDatabase;
import org.bson.Document;
 
import java.util.Arrays;
import java.util.List;
 
/**
 * mongo操作类的基础类
 */
public class MongoBase extends SourceCode {
 
 /**
  * 获取服务地址list
  *
  * @param addresses
  * @return
  */
 public static List<ServerAddress> getServers(ServerAddress... addresses) {
  return Arrays.asList(addresses);
 }
 
 /**
  * 获取服务地址
  *
  * @param host
  * @param port
  * @return
  */
 public static ServerAddress getServerAdress(String host, int port) {
  return new ServerAddress(host, port);
 }
 
 /**
  * 获取认证list
  *
  * @param credentials
  * @return
  */
 public static List<MongoCredential> getCredentials(MongoCredential... credentials) {
  return Arrays.asList(credentials);
 }
 
 /**
  * 获取验证
  *
  * @param userName
  * @param database
  * @param password
  * @return
  */
 public static MongoCredential getMongoCredential(String userName, String database, String password) {
  return MongoCredential.createCredential(userName, database, password.toCharArray());
 }
 
 /**
  * 获取mongo客户端
  *
  * @param addresses
  * @param credentials
  * @return
  */
 public static MongoClient getMongoClient(List<ServerAddress> addresses, List<MongoCredential> credentials) {
  return new MongoClient(addresses, credentials);
 }
 
 /**
  * 连接mongo数据库
  *
  * @param mongoClient
  * @param databaseName
  * @return
  */
 public static MongoDatabase getMongoDatabase(MongoClient mongoClient, String databaseName) {
  return mongoClient.getDatabase(databaseName);
 }
 
 /**
  * 连接mongo集
  *
  * @param mongoDatabase
  * @param collectionName
  * @return
  */
 public static MongoCollection<Document> getMongoCollection(MongoDatabase mongoDatabase, String collectionName) {
  return mongoDatabase.getCollection(collectionName);
 }
 
 /**
  * 关闭数据库连接
  *
  * @param mongoClient
  */
 public static void MongoOver(MongoClient mongoClient) {
  mongoClient.close();
 }
 
 /**
  * 获取mongo客户端对象，通过servers和credentials对象创建
  *
  * @param mongoObject
  * @return
  */
 public static MongoClient getMongoClient(MongoObject mongoObject) {
  MongoClient mongoClient = new MongoClient(getServers(getServerAdress(mongoObject.host, mongoObject.port)), getCredentials(getMongoCredential(mongoObject.user, mongoObject.database, mongoObject.password)));
  return mongoClient;
 }
 
 /**
  * 获取mongo客户端对象,通过uri方式连接
  *
  * @param mongoObject
  * @return
  */
 public static MongoClient getMongoClientOnline(MongoObject mongoObject) {
  String format = String.format("mongodb://%s:%s@%s:%d/%s", mongoObject.user, mongoObject.password, mongoObject.host, mongoObject.port, mongoObject.database);
  return new MongoClient(new MongoClientURI(format));
 }
 
 /**
  * 获取collection对象
  *
  * @param mongoObject
  * @return
  */
 public static MongoCollection<Document> getCollection(MongoObject mongoObject, String collectionName) {
  return getMongoClient(mongoObject).getDatabase(mongoObject.database).getCollection(collectionName);
 }
 
 /**
  * 获取collection对象
  *
  * @param mongoObject
  * @return
  */
 public static MongoCollection<Document> getCollectionOnline(MongoObject mongoObject, String collectionName) {
  return getMongoClientOnline(mongoObject).getDatabase(mongoObject.database).getCollection(collectionName);
 }
 
}

package com.fun.mongodb;
 
 
import com.mongodb.MongoClient;
import com.mongodb.client.MongoCollection;
import org.bson.Document;
 
/**
 * mongo数据库配置对象，针对单个数据服务，单个身份验证
 */
public class MongoObject extends MongoBase {
 
  String host;
 
  int port;
 
  String user;
 
  String password;
 
  String database;
 
  MongoClient mongoClient;
 
  /**
   * 创建数据连接
   *
   * @param host
   * @param port
   * @param user
   * @param password
   * @param database
   */
  public MongoObject(String host, int port, String user, String password, String database) {
    this.host = host;
    this.port = port;
    this.user = user;
    this.password = password;
    this.database = database;
    this.mongoClient = getMongoClient(this);
  }
 
  /**
   * 创建数据库连接
   *
   * @param port
   * @param host
   * @param user
   * @param password
   * @param database
   */
  public MongoObject(int port, String host, String user, String password, String database) {
    this.host = host;
    this.port = port;
    this.user = user;
    this.password = password;
    this.database = database;
    this.mongoClient = getMongoClientOnline(this);
  }
 
  /**
   * 获取colletion对象
   *
   * @param collectionName
   * @return
   */
  public MongoCollection<Document> getMongoCollection(String collectionName) {
    MongoClient mongoClientOnline = getMongoClientOnline(this);
    return mongoClientOnline.getDatabase(database).getCollection(collectionName);
  }
 
 
  /**
   * 关闭连接
   */
  public void over() {
    MongoOver(this.mongoClient);
  }
}
 @Override
  public MongoObject clone() {
    return new MongoObject(this.host, this.port, this.user, this.password, this.database);
  }

  public MongoObject clone2() {
    return new MongoObject(this.port, this.host, this.user, this.password, this.database);
  }

 public static void main(String[] args) {
    MongoObject ready = new MongoObject("*****", 5117, "fission_record", "fission_record", "fission_record");
    MongoCollection<Document> app = ready.getMongoCollection("app_logs_20181109");
    Document first = app.find().first();
    output(first);
    ready.over();
  }