package com.test.mongodb;

import com.mongodb.Mongo;
import com.mongodb.MongoClient;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.data.mongodb.config.AbstractMongoConfiguration;
import org.springframework.data.mongodb.core.mapping.MongoMappingContext;

public class SpringMongoConfiguration extends AbstractMongoConfiguration {
    @Value("${spring.data.mongodb.host}")
    private String mongoHost;

    @Value("${spring.data.mongodb.port}")
    private int mongoPort;

    @Value("${spring.data.mongodb.database}")
    private String mongoDB;


    @Override
    public MongoMappingContext mongoMappingContext() throws ClassNotFoundException {
        return super.mongoMappingContext();
    }

    @Override
    public Mongo mongo() throws Exception {
        System.out.println("mongo host: " + mongoHost);
        System.out.println("mongo port: " + mongoPort);
        System.out.println("mongo db: " + mongoDB);
        return new MongoClient(mongoHost, mongoPort);
    }

    @Override
    protected String getDatabaseName() {
        return mongoDB;
    }
}

package com.test.domain;

import java.util.Date;
import org.springframework.data.annotation.Id;
import org.springframework.data.mongodb.core.mapping.Document;
import lombok.Data;

@Data
@Document(collection = "test1Collection")
public class Test {

    @Id
    @Field("_id")
    private String id;

    @NotNull
    private String testName;

    @NotNull
    private String text;

}

package com.test.repository;

import java.util.Date;
import java.util.List;
import org.springframework.data.mongodb.repository.MongoRepository;
import com.test.domain.Test;


public interface TestRepository extends MongoRepository<Test, String> {

    public List<Test> findByTestName(String name);

    public List<Test> findBytText(String text);
}

List<Test> datas = testRepository.findAll();

Test test = new Test();
test.setTestName("Name1");
test.setText("text1");
testRepository.insert(test);

MongoClient mongoClient;
mongoClient = new MongoClient("localhost", 27017);
MongoDatabase mongoDB = mongoClient.getDatabase("testdb");
mongoDB.createCollection("test2Collection");

package com.test.domain;

import java.util.Date;
import org.springframework.data.annotation.Id;
import org.springframework.data.mongodb.core.mapping.Document;
import lombok.Data;

@Data
@Documen★collectionの指定なし
public class Test2 {

    @Id
    @Field("_id")
    private String id;

    @NotNull
    private String testName;

    @NotNull
    private String text;

}

package com.test.repository;

import java.util.Date;
import java.util.List;
import org.springframework.data.mongodb.repository.MongoRepository;
import com.test.domain.Test;

public interface Test2Repository extends MongoRepository<Test2, String> {

    public List<Test> findByTestName(String name);

    public List<Test> findBytText(String text);
}