这是你可以做到的方法，

Here is the way you can do it,

第一步，让 Doctrine 内省数据库并生成相应的 xml 或 yml 元数据文件.

First step, ask Doctrine to introspect the database and generate the corresponding xml or yml metadata files.

php app/console doctrine:mapping:convert [xml|yml] Path/To/MyBundle/Resources/config/doctrine/metadata/orm --from-database --force --filter=MyTable

第二步，通过执行以下两个命令，让 Doctrine 导入架构并构建相关实体类.

Second step, ask Doctrine to import the schema and build related entity classes by executing the following two commands.

php app/console doctrine:mapping:import MyBundle [xml|yml|annotation] --filter=MyTable

php app/console doctrine:generate:entities Path\To\MyBundle\EntityFolder\\MyTable

查看文档的如何从现有数据库生成实体部分