实际上，可以使用 @Options 注释（假设您在数据库中使用auto_increment或类似内容）来执行此操作：

Actually, it's possible to do it, with the @Options annotation (provided you're using auto_increment or something similar in your database) :

@Insert("insert into table3 (id, name) values(null, #{name})") 
@Options(useGeneratedKeys=true, keyProperty="idName")
int insertTable3(SomeBean myBean); 

请注意 keyProperty =idName如果SomeBean中的key属性被命名为id，则不需要part。还有一个 keyColumn 属性可用，因为MyBatis无法自己找到主键列的极少数情况。另请注意，通过使用 @Options ，您将方法提交到某些默认参数;查阅文档非常重要（链接如下 - 当前版本的第60页）！

Note that the keyProperty="idName" part is not necessary if the key property in SomeBean is named "id". There's also a keyColumn attribute available, for the rare cases when MyBatis can't find the primary key column by himself. Please also note that by using @Options, you're submitting your method to some default parameters ; it's important to consult the doc (linked below -- page 60 in the current version) !

（旧答案）（最近） @SelectKey 注释可用于更复杂的密钥检索（序列，identity（）函数...）。这是 MyBatis 3用户指南（pdf）提供了示例：

(Old answer) The (quite recent) @SelectKey annotation can be used for more complex key retrieval (sequences, identity() function...). Here's what the MyBatis 3 User Guide (pdf) offers as examples :

此示例显示使用@SelectKey批注检索
插入前的序列中的值：

This example shows using the @SelectKey annotation to retrieve a value from a sequence before an insert:

@Insert("insert into table3 (id, name) values(#{nameId}, #{name})") 
@SelectKey(statement="call next value for TestSequence", keyProperty="nameId", before=true, resultType=int.class) 
int insertTable3(Name name); 

此示例显示使用@SelectKey批注后检索标识值插入：

This example shows using the @SelectKey annotation to retrieve an identity value after an insert:

@Insert("insert into table2 (name) values(#{name})")
@SelectKey(statement="call identity()", keyProperty="nameId", before=false, resultType=int.class)
int insertTable2(Name name);