我正在使用spring数据来存储和获取数据库中的记录。最初的数据库是MySQL，但现在我想为mongodb配置相同的应用程序。请为Mysql配置应用程序资源属性。

# ===============================
# = DATA SOURCE
# ===============================
# Connection url for the database connection
spring.datasource.url = jdbc:mysql://localhost:27017/purchase_books

# Username and password
spring.datasource.username = root
spring.datasource.password = root

# Keep the connection alive if idle for a long time (needed in production)
spring.datasource.testWhileIdle = true
spring.datasource.validationQuery = SELECT 1

# ===============================
# = JPA / HIBERNATE
# ===============================
# Show or not log for each sql query
spring.jpa.show-sql = true

# Hibernate ddl auto (create, create-drop, update): with "update" the database
# schema will be automatically updated accordingly to java entities found in the project
spring.jpa.hibernate.ddl-auto = update

# Naming strategy
spring.jpa.hibernate.naming-strategy = org.hibernate.cfg.ImprovedNamingStrategy

# Allows Hibernate to generate SQL optimized for a particular DBMS
spring.jpa.properties.hibernate.dialect = org.hibernate.dialect.MySQL5Dialect

有人能告诉我mongodb的配置变化吗？