@Documented
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.METHOD)
public @interface Options {
/**

  • The options for the {@link Options#flushCache()}.
  • The default is {@link FlushCachePolicy#DEFAULT}
    */

public enum FlushCachePolicy {

/** <code>false</code> for select statement; <code>true</code> for insert/update/delete statement. */
DEFAULT,
/** Flushes cache regardless of the statement type. */
TRUE,
/** Does not flush cache regardless of the statement type. */
FALSE

}

boolean useCache() default true;

FlushCachePolicy flushCache() default FlushCachePolicy.DEFAULT;

ResultSetType resultSetType() default ResultSetType.FORWARD_ONLY;

StatementType statementType() default StatementType.PREPARED;

int fetchSize() default -1;

int timeout() default -1;

boolean useGeneratedKeys() default false;

String keyProperty() default "id";

String keyColumn() default "";

String resultSets() default "";
}
这个类要注意：
（1）useGeneratedKeys，默认值是false
（2）timeout，默认值是-1，说明没有限制超时

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