Play Framework 2.4 Ebean Id生成 [英] Play Framework 2.4 Ebean Id Generation

问题描述

直到现在我们一直在使用Play 2.3.9，并且现在正在迁移到Play 2.4.1.当我使用旧版本的Play时，保存实体有效，但使用新版本时，不会生成ID.我从头开始设置了一个新项目，并尝试使其实现，并且自动生成的数据库具有一个ID字段，该字段自动递增，而旧项目具有一个使用序列的数据库.我一直在尝试将play/ebean配置为使用序列，但到目前为止尚未成功.

until now we have been using Play 2.3.9 and we are now migrating to Play 2.4.1 When I use the old version of Play saving an Entity works but with the new verion the Id is not generated. I setup a new project from scratch and tried it to realize it works and the auto generated database has an Id field that auto increments while the old project has a database that uses sequences. I have been trying to configure play/ebean to use sequences but have not been succesfull thus far.

我在这里查看了 http://www.avaje.org/topic-97.html 并尝试了一下，但仍然无法正常工作.任何建议，将不胜感激.

I took a look here http://www.avaje.org/topic-97.html and gave it a try but its still not working. Any suggestions would be appreciated.

我的配置如下:

ebean.default.identityGeneration=sequence
ebean.default.supportsGetGeneratedKeys=false
ebean.default.supportsSequences=true
ebean.default.debug.sql=true

我也尝试过

ebean.default.identityGeneration=generator

我将这些行直接放在application.conf中，我还愚弄了配置ebean但没有运气的ServerConfigStartup方法.

I put the lines directly in application.conf I also fooled around with the ServerConfigStartup way of configuring ebean but no luck.

推荐答案

无论如何，我都能正常工作，如果有人遇到相同的问题，则可以通过以下方法对其进行修复:

Anyways, I got it to work, if anyone has the same problem the following fixes it:

public class MyServerConfigStartup implements ServerConfigStartup {
@Override
public void onStart(ServerConfig serverConfig) {
    PostgresPlatform postgresPlatform = new PostgresPlatform();
    DbIdentity dbIdentity = postgresPlatform.getDbIdentity();
    dbIdentity.setSupportsGetGeneratedKeys(false);
    dbIdentity.setSupportsSequence(true);
    dbIdentity.setIdType(IdType.GENERATOR);
    serverConfig.setDatabasePlatform(postgresPlatform);
}

}

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