springboot副本集mongoDB

1. pom
   在pom文件引入相关的jar包

    <dependency>
            <groupId>org.springframework.bootgroupId>
            <artifactId>spring-boot-starter-data-mongodbartifactId>
        dependency>

注意：一定不要在pom中引入mongoDB的jar，会引起项目抛出Factory method ‘mongo’ threw exception; nested exception is java.lang.NoSuchFieldError: ACKNOWLEDGED

2 mongoDB Configuration

package cn.creditease.mongo.init;

import com.mongodb.MongoClient;
import com.mongodb.MongoCredential;
import com.mongodb.ServerAddress;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.boot.autoconfigure.mongo.MongoProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Profile;
import org.springframework.data.mongodb.MongoDbFactory;
import org.springframework.data.mongodb.core.SimpleMongoDbFactory;
import org.springframework.data.mongodb.repository.config.EnableMongoRepositories;

import javax.inject.Inject;
import java.util.ArrayList;
import java.util.List;
@Configuration
@EnableMongoRepositories("cn.creditease.repository")
public class CloudDatabaseConfiguration  {

    private final Logger log = LoggerFactory.getLogger(CloudDatabaseConfiguration.class);

    @Inject
    private MongoProperties mongoProperties;

    @Bean
    public MongoDbFactory mongoDbFactory() throws Exception {

        List addresses = new ArrayList();
        ServerAddress addr = new ServerAddress(mongoProperties.getHost(), mongoProperties.getPort());
        ServerAddress addr2 = new ServerAddress("10.100.138.95", 27017);
        ServerAddress addr3 = new ServerAddress("10.100.138.96", 27018);
        addresses.add(addr);
        addresses.add(addr2);
        addresses.add(addr3);
        MongoCredential mongoCredential = MongoCredential.createMongoCRCredential(
                mongoProperties.getUsername(),
                mongoProperties.getDatabase(),
                mongoProperties.getPassword());
        List credentialsList = new ArrayList();
        credentialsList.add(mongoCredential);
        MongoDbFactory mongoDbFactory =   new SimpleMongoDbFactory(new MongoClient(addresses, credentialsList),
                mongoProperties.getDatabase());
        return mongoDbFactory;
    }
}

以上是对多个mongoDB的配置类

3 application.properties

  spring.data.mongodb.database=oltpdb
  spring.data.mongodb.host=10.100.138.94
  spring.data.mongodb.port=27016
  spring.data.mongodb.password=888888
  spring.data.mongodb.username=mongouser

注意：springboot默认是在application.properties配置文件中读取mongoDB配置信息。

4 Repository

package cn.creditease.repository;

import java.util.List;

import org.springframework.data.mongodb.repository.MongoRepository;

public interface CustomerRepository extends MongoRepository<Customer, String> {

    public Customer findByFirstName(String firstName);

    public List findByLastName(String lastName);

}