MongoDB Data import HBase + code

requirements: Identify the data from the MongoDB, determine if there is a cluster, if any, import this piece of data+A column cluster, if not, the data does not contain the column cluster to directly post the code: PackageTest;Importjava.util.ArrayList;ImportJava.util.Iterator;Importjava.util.List;ImportJava.util.Set;Importorg.apache.hadoop.conf.Configuration;Importorg.apache.hadoop.hbase.HBaseConfiguration;Importorg.apache.hadoop.hbase.client.HTable;ImportOrg.apache.hadoop.hbase.client.Put;Importorg.apache.hadoop.hbase.util.Bytes;Importorg.bson.Document;Importcom.mongodb.MongoClient;Importcom.mongodb.MongoCredential;Importcom.mongodb.ServerAddress;Importcom.mongodb.client.FindIterable;Importcom.mongodb.client.MongoCollection;ImportCom.mongodb.client.MongoCursor;Importcom.mongodb.client.MongoDatabase; Public classOperateTable2 {Private StaticConfiguration conf =NULL;Static{conf=hbaseconfiguration.create (); Conf.set ("Hbase.zookeeper.quorum", "Master.hadoop"); Conf.set ("Hbase.zookeeper.property.clientPort", "2181"); Conf.set ("Hbase.master", "master.hadoop:60000");} Public Static voidAddRow (String tableName, String row, String columnfamily, String column, String value)throwsException {htable htable=Newhtable (conf, tableName); Put put=NewPut (bytes.tobytes (row)); //parameter out: Column family, column, valuePut.add (Bytes.tobytes (columnfamily), bytes.tobytes (column), bytes.tobytes (value));     Htable.put (Put); } Public Static voidMain (string[] args) {//declaring a static configurationString tableName = "House"; String Columnfamilys= "Info"; intA = 0;Try{serveraddress serveraddress=NewServerAddress ("42.62.66.9", 27017); List Addrs=NewArrayList (); Addrs.add (serveraddress); Mongocredential Credential= Mongocredential.createscramsha1credential ("admin", "Admin", "bigmaster654321". ToCharArray ()); List Credentials=NewArrayList (); Credentials.add (credential);//obtaining MongoDB connections through authenticationMongoclient mongoclient =Newmongoclient (addrs,credentials); Mongodatabase Mongodatabase= Mongoclient.getdatabase ("House"); System.out.println ("MongoDB Connection-----------------successfully"); Mongocollection Collection= Mongodatabase.getcollection ("Houses2"); Finditerable finditerable=Collection.find (); Mongocursor Mongocursor=finditerable.iterator (); while(Mongocursor.hasnext ()) {a=a+1;D ocument Document=Mongocursor.next (); Set Set=Document.keyset (); Iterator it=set.iterator (); while(It.hasnext ()) {String tags=It.next ();if(Tags.equals ("_id")){ Continue; } Operatetable2.addrow (TableName, document.getstring ("_ID"), Columnfamilys, tags, document.getstring (tags));} System.out.println ("Insert into HBase Success" + "This is the" +a+ "data");} System.out.println ("Compelete All Insert");} Catch(Exception e) {//Todo:handle ExceptionSystem.err.println (E.getclass (). GetName () + ":" +e.getmessage ());}}} I am here with _id for HBase Rowkey, listed as info, the code is correct, according to the needs can be changed, the key lies in two while judgment, where the most error-prone, Import MySQL can also use this code to change the value of the place and the JDBC connection to import the required package: MONGO-java-driver-3.2.2. Jar,hbase commonly used packages can be fully guided code, such as the original reprint annotated source! 

MongoDB Data import HBase + code