MongoDB动态建表方案（官方原生驱动）

MongoDB动态建表方案（官方原生驱动）

需求前提：表名动态，表结构静态，库固定

1.导入相关依赖

<dependency>
    <groupId>org.mongodb</groupId>
    <artifactId>mongodb-driver</artifactId>
    <version>3.11.2</version>
</dependency>
<dependency>
	<groupId>org.mongodb</groupId>
	<artifactId>bson</artifactId>
	<version>3.11.2</version>
</dependency>
<dependency>
    <groupId>org.mongodb</groupId>
    <artifactId>mongodb-driver-core</artifactId>
    <version>3.11.2</version>
</dependency>

2.定义实体

@Data
public class Person {
    private String name;
    private int sex;
    private String address;
}

3.设置实体解析器

    public static void addMongoDB(String collectionName) {
        CodecRegistry pojoCodecRegistry = CodecRegistries.fromRegistries(MongoClientSettings.getDefaultCodecRegistry(), CodecRegistries.fromProviders(PojoCodecProvider.builder().automatic(true).build()));
        MongoClient mongoClient = MongoClients.create("mongodb://admin:Tong#1234@168.1.121.4:15700");
        //指定实体解析器
        MongoDatabase mongoDatabase = mongoClient.getDatabase("marty_test").withCodecRegistry(pojoCodecRegistry);
        MongoCollection<Person> mongoCollection = mongoDatabase.getCollection(collectionName, Person.class);
        Person person = new Person();
        person.setName("test");
        person.setAddress("地址");
        person.setSex(1);
        mongoCollection.insertOne(person);
    }

说明：Collection获取之后，第一次插入数据时，会自动创建，Database也类似

4.测试

public static void main(String[] args) throws Exception {
        for (int i = 0; i < 10; i++) {
            addMongoDB("test-" + i);
        }
    }