Grails 3：doWithSpring 中的覆盖服务答案

【问题标题】：Grails 3 : overriding service in doWithSpringGrails 3：doWithSpring 中的覆盖服务
【发布时间】：2017-03-21 11:44:20
【问题描述】：

在 grails 2 中，重写 XPlugin.groovy 中的 bean 只需要在 doWithSpring() 方法中重新定义服务：

def doWithSpring = {
    tokenStorageService(TokenStorageProxyService) { it.autowire = 'byName' }
}

我开始使用 Grails 3 进行编程，已经体验过 Grails 2，并在新插件中尝试了相同类型的覆盖，因为我正在为我现有的一些 Grails 2 插件创建 Grails 3 版本：

Closure doWithSpring() { {->
    tokenStorageService(TokenStorageProxyService) {
        it.autowire = 'byName'
    }
} }

我做了一些集成测试：

@Integration
class SecurityServiceIntegrationSpec extends Specification {

    SecurityService securityService
    TokenStorageProxyService tokenStorageService
...
}

运行测试时出现错误：

org.springframework.beans.ConversionNotSupportedException: Failed to convert property value of type 'grails.plugin.springsecurity.rest.token.storage.jwt.JwtTokenStorageService' to required type 'com.b2boost.grails3.auth.client.TokenStorageProxyService' for property 'tokenStorageService'; nested exception is java.lang.IllegalStateException: Cannot convert value of type 'grails.plugin.springsecurity.rest.token.storage.jwt.JwtTokenStorageService' to required type 'com.b2boost.grails3.auth.client.TokenStorageProxyService' for property 'tokenStorageService': no matching editors or conversion strategy found
at org.springframework.beans.AbstractNestablePropertyAccessor.convertIfNecessary(AbstractNestablePropertyAccessor.java:605)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1620)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:400)
at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.injectDependencies(DependencyInjectionTestExecutionListener.java:119)
at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.prepareTestInstance(DependencyInjectionTestExecutionListener.java:83)
at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:230)
...
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.IllegalStateException: Cannot convert value of type 'grails.plugin.springsecurity.rest.token.storage.jwt.JwtTokenStorageService' to required type 'com.b2boost.grails3.auth.client.TokenStorageProxyService' for property 'tokenStorageService': no matching editors or conversion strategy found 
at org.springframework.beans.TypeConverterDelegate.convertIfNecessary(TypeConverterDelegate.java:306)
at org.springframework.beans.AbstractNestablePropertyAccessor.convertIfNecessary(AbstractNestablePropertyAccessor.java:590)
... 37 more

似乎默认的 JwtTokenStorageService 没有被我的 TokenStorageProxyService 覆盖，导致服务连接到集成测试时出现 ConversionNotSupportedException。如何覆盖插件中的服务？

【问题讨论】：

标签： grails integration-testing grails3 grails3.2.0

【解决方案1】：

经过一番调查，似乎我的自定义模块是在 Spring 安全休息后加载的。因此，来自 SSR 的 tokenStorageService 覆盖了我的服务，而相反的情况应该发生：

正在配置 MyModule...

... 完成 MyModule 的配置

配置 Spring Security Core ...

...完成配置Spring Security Core

正在配置 Spring Security REST 2.0.0.M2...

...完成配置 Spring Security REST

在 MyModuleGrailsPlugin.groovy 中添加以下行可确保以正确的顺序加载模块：

def loadAfter = [
    'springSecurityRest'
]

【讨论】：