Spring Data：不使用XML的MongoDB的Java配置

Answer 1

基本配置如下所示：

@Configuration
@EnableMongoRepositories
public class MongoConfiguration extends AbstractMongoConfiguration {

    @Override
    protected String getDatabaseName() {
        return "dataBaseName";
    }

    @Override
    public Mongo mongo() throws Exception {
        return new MongoClient("127.0.0.1", 27017);
    }

    @Override
    protected String getMappingBasePackage() {
        return "foo.bar.domain";
    }
}

文档示例：

@Document
public class Person {

    @Id
    private String id;

    private String name;

    public Person(String name) {
        this.name = name;
    }

    public String getId() {
        return id;
    }

    public void setId(String id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }
}

存储库的示例：

@Repository
public class PersonRepository {

    @Autowired
    MongoTemplate mongoTemplate;

    public long countAllPersons() {
        return mongoTemplate.count(null, Person.class);
    }
}