org.mybatis.spring.boot:mybatis-spring-boot-starter:2.1.4 Error creating lazy proxy

[郭大鹏]

Machine translation:

When I was testing fetchType="lazy", Error creating lazy Proxy appeared.

I don't know if I'm missing something.

I use a org org.mybatis.spring.boot:mybatis-spring-boot-starter:2.1.4

After investigation, I found that mybatis fixed this problem when it was 3.5.0, but Now I'm using 3.5.6. I don't know why this problem is happening to me.

If you can confirm that there is no such problem on 3.5.6, I hope you can tell me and I will try to solve it by myself. I'm not sure if It's just me.

This is a demo of the code I'm testing

https://github.com/GuoDapeng/mybatis-demo

Here is the database file

doc/sql/database.sql

Here's another test

src/test/kotlin/icu/guodapeng/mybatisdemo/domain/UserRolesTests.kt

原文：

我在测试 fetchType="lazy" 的时候，出现了 Error creating lazy proxy。

我不清楚是不是我忽略了什么。

我使用的是 org.mybatis.spring.boot:mybatis-spring-boot-starter:2.1.4

我调查得知，mybatis 3.5.0 的时候修复过这个问题，我现在用的是 3.5.6。我不知道这个问题为啥发生在我身上。

如果能确认 3.5.6 是没有这个问题的，希望能告诉我，我尝试自己解决。我现在不确定是不是只有我出现了问题。

这是我测试代码的demo

https://github.com/GuoDapeng/mybatis-demo

这里有数据库文件

doc/sql/database.sql

这里又一个测试

src/test/kotlin/icu/guodapeng/mybatisdemo/domain/UserRolesTests.kt

[Iwao AVE!]

Hello,

The error message says 'UserBase is final'.
To achieve lazy-loading, MyBatis creates a dynamic proxy of `UserBase` class, so `UserBase` has to be non-final [1].
Replacing `data class UserBase` to `open class UserBase` seems to fix the problem.

[1] https://stackoverflow.com/q/16437323/1261766

Regards,
Iwao

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[郭大鹏]

machine translation:

Thank you very much, your ideas helped me. I now use the kotlin All-open compiler plugin to solve the problem I encountered. I have pushed the complete code to GitHub.

原文：

非常感谢，你的思路帮助了我。我现在通过 kotlin All-open compiler plugin 解决了我遇到的问题。我已经把完整的代码推送到 GitHub 了。

mybatis-demo