我正在将SpringBoot应用程序从2.2.2迁移到2.2.3。我还将mongock升级到4.1.16版本，因为目前使用的2.0.2版本不再兼容。
我有一个在2.0.2中运行良好但在4.1.16中不起作用的changelog：
@ChangeSet(order = "001", id = "initDatabaseParametre", author = "xxxxx")
public void initDatabaseParametre(ParametreManager parametreManager, ObjectMapper mapper) throws IOException
// someting
}对于4.1.16，我有这个例外，因为objectmapper不是一个接口（com.fasterxml.jackson.databind.objectmapper）：
io.changock.migration.api.exception.ChangockException: Error in method[ChangelogInitDatabase.initDatabaseParametre] : Parameter of type [ObjectMapper] must be an interface
at io.changock.runner.core.MigrationExecutor.processExceptionOnChangeSetExecution(MigrationExecutor.java:179)
at io.changock.runner.core.MigrationExecutor.processSingleChangeSet(MigrationExecutor.java:97)
at io.changock.runner.core.MigrationExecutor.lambda$processSingleChangeLog$2(MigrationExecutor.java:89)
at io.changock.runner.core.MigrationExecutor.executeInTransactionIfStrategyOrUsualIfNot(MigrationExecutor.java:75)
at io.changock.runner.core.MigrationExecutor.processSingleChangeLog(MigrationExecutor.java:89)
at io.changock.runner.core.MigrationExecutor.lambda$processAllChangeLogs$1(MigrationExecutor.java:83)
at io.changock.runner.core.MigrationExecutor.executeInTransactionIfStrategyOrUsualIfNot(MigrationExecutor.java:75)
at io.changock.runner.core.MigrationExecutor.processAllChangeLogs(MigrationExecutor.java:83)
at io.changock.runner.core.MigrationExecutor.lambda$executeMigration$0(MigrationExecutor.java:64)
at com.github.cloudyrock.mongock.driver.mongodb.springdata.v3.SpringDataMongo3Driver.executeInTransaction(SpringDataMongo3Driver.java:108)
at io.changock.runner.core.MigrationExecutor.executeInTransactionIfStrategyOrUsualIfNot(MigrationExecutor.java:73)
at io.changock.runner.core.MigrationExecutor.executeMigration(MigrationExecutor.java:64)
at io.changock.runner.spring.v5.core.SpringMigrationExecutor.executeMigration(SpringMigrationExecutor.java:38)
at io.changock.runner.core.ChangockBase.execute(ChangockBase.java:44)
at io.changock.runner.spring.v5.ChangockSpringBuilderBase$ChangockSpringApplicationRunner.run(ChangockSpringBuilderBase.java:110)
at org.springframework.boot.SpringApplication.callRunner(SpringApplication.java:786)
at org.springframework.boot.SpringApplication.callRunners(SpringApplication.java:776)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:322)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1237)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226)
at com.myproject.MyApplication.main(MyApplication.java:23)
Caused by: io.changock.migration.api.exception.ChangockException: Parameter of type [ObjectMapper] must be an interface
at io.changock.runner.core.DependencyManagerWithContext.getDependency(DependencyManagerWithContext.java:42)
at io.changock.runner.core.MigrationExecutor.getParameter(MigrationExecutor.java:165)
at io.changock.runner.core.MigrationExecutor.executeChangeSetMethod(MigrationExecutor.java:155)
at io.changock.runner.core.MigrationExecutor.executeAndLogChangeSet(MigrationExecutor.java:111)
at io.changock.runner.spring.v5.core.SpringMigrationExecutor.executeAndLogChangeSet(SpringMigrationExecutor.java:44)
at io.changock.runner.core.MigrationExecutor.processSingleChangeSet(MigrationExecutor.java:95)
... 19 common frames omitted我需要在我的变更日志中使用objectmapper，因为我的迁移过程读取json文件。
1条答案
按热度按时间mi7gmzs61#
正如您在mongock的文档中的usingcustombeansinchangesetmethods部分所看到的，您在变更集中使用的自定义bean必须是接口。
这里有一些解释。
但是，你可以告诉mongock你不想那样。较少干扰的机制是添加注解
@NonLockGuarded如本节所述，更改集参数。这种方法的缺点是每次在所有变更集中使用bean时都需要添加注解。可能一种更方便，但也更具侵入性的方法是向bean的类型添加相同的注解，在本例中为objectmapper，如本节所述。
我假设它是jackson的objectmapper，而不是所有这些，您可以将springcontext作为参数并从中获取objectmapperbean，但这并不理想，原因很明显（这适用于任何类型的bean）