切换到 JPMS（Java 平台模块系统）时出现 Spring NoSuchBeanDefinitionException

Question

我正在尝试将一个大型项目迁移到 JPMS（Java 平台模块系统）。

它包含一些给我带来麻烦的 Spring 组件。 我创建了一个test repo 来演示这个问题。当我删除 module-info.java 文件时，它工作得很好，如TestControllerTest.java 中的测试所示。但是，如果我添加 module-info.java 那么它会停止工作并出现以下异常：

Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'RESTConfiguration': Unsatisfied dependency expressed through field 'fooAuthenticationProvider'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'com.spacemetric.spring.jpmstest.auth.FooAuthenticationProvider' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
at spring.beans@5.2.6.RELEASE/org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:643)
at spring.beans@5.2.6.RELEASE/org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:130)
at … 

堆栈跟踪似乎表明ApplicationContext 无法找到@Autowired 实现。我已经打开了整个模块进行深度反思。我高度未受教育的猜测是，这可能与类路径与模块路径有关，但我不知道该怎么做。

module-info.java文件如下：

open module com.spacemetric.spring.jpmstest {       
    requires spring.core;
    requires spring.context;
    requires spring.beans;
    requires spring.security.config;
    requires spring.security.web;
    requires spring.webmvc;
    requires spring.security.core;
    requires javax.servlet.api;
    requires spring.web;
}

以下是 Eclipse 用来运行测试的命令行（根据要求）：

C:\程序 文件\Java\java-11-openjdk-11.0.7.10-1.windows.redhat.x86_64\bin\javaw.exe -ea --add-opens com.spacemetric.spring.jpmstest/com.spacemetric.spring.jpmstest=ALL-UNNAMED --add-modules=ALL-MODULE-PATH -Dfile.encoding=UTF-8 -p "C:\dev\source\spring-jpms-test\target\classes;C:\Users\Oscar Haglund.m2\repository\org\springframework\spring-core\5.2.6.RELEASE\spring-core-5.2.6.RELEASE.jar;C:\Users\Oscar Haglund.m2\repository\org\springframework\security\spring-security-web\5.3.2.RELEASE\spring-security-web-5.3.2.RELEASE.jar;C:\Users\Oscar Haglund.m2\repository\org\springframework\security\spring-security-core\5.3.2.RELEASE\spring-security-core-5.3.2.RELEASE.jar;C:\Users\Oscar Haglund.m2\repository\org\springframework\spring-beans\5.2.6.RELEASE\spring-beans-5.2.6.RELEASE.jar;C:\Users\Oscar Haglund.m2\repository\org\springframework\spring-context\5.2.6.RELEASE\spring-context-5.2.6.RELEASE.jar;C:\Users\Oscar Haglund.m2\repository\org\springframework\spring- web\5.2.6.RELEASE\spring-web-5.2.6.RELEASE.jar;C:\Users\Oscar Haglund.m2\repository\org\springframework\security\spring-security-config\5.3.2.RELEASE\spring-security-config-5.3.2.RELEASE.jar;C:\Users\Oscar Haglund.m2\repository\org\springframework\spring-webmvc\5.2.6.RELEASE\spring-webmvc-5.2.6.RELEASE.jar;C:\Users\Oscar Haglund.m2\repository\javax\servlet\javax.servlet-api\3.1.0\javax.servlet-api-3.1.0.jar" -classpath "C:\Users\Oscar Haglund.m2\repository\org\springframework\spring-jcl\5.2.6.RELEASE\spring-jcl-5.2.6.RELEASE.jar;C:\Users\Oscar Haglund.m2\repository\org\springframework\spring-aop\5.2.6.RELEASE\spring-aop-5.2.6.RELEASE.jar;C:\Users\Oscar Haglund.m2\repository\org\springframework\spring-expression\5.2.6.RELEASE\spring-expression-5.2.6.RELEASE.jar;C:\Users\Oscar Haglund.m2\repository\org\junit\jupiter\junit-jupiter-engine\5.7.0\junit-jupiter-engine-5.7.0.jar;C:\Users\Oscar Haglund.m2\repository\org\apiguardian\apiguardian-api\1.1.0\apiguardian-api-1.1.0.jar;C:\Users\Oscar Haglund.m2\repository\org\junit\platform\junit-platform-engine\1.7.0\junit-platform-engine-1.7.0.jar;C:\Users\Oscar Haglund.m2\repository\org\opentest4j\opentest4j\1.2.0\opentest4j-1.2.0.jar;C:\Users\Oscar Haglund.m2\repository\org\junit\platform\junit-platform-commons\1.7.0\junit-platform-commons-1.7.0.jar;C:\Users\Oscar Haglund.m2\repository\org\junit\jupiter\junit-jupiter-api\5.7.0\junit-jupiter-api-5.7.0.jar;C:\Users\Oscar Haglund.m2\repository\org\springframework\spring-test\5.2.6.RELEASE\spring-test-5.2.6.RELEASE.jar;C:\Users\Oscar Haglund.m2\repository\org\springframework\restdocs\spring-restdocs-mockmvc\2.0.5.RELEASE\spring-restdocs-mockmvc-2.0.5.RELEASE.jar;C:\Users\Oscar Haglund.m2\repository\ org\springframework\restdocs\spring-restdocs-core\2.0.5.RELEASE\spring-restdocs-core-2.0.5.RELEASE.jar;C:\Users\Oscar Haglund.m2\repository\com\fasterxml\jackson\core\jackson-databind\2.9.5\jackson-databind-2.9.5.jar;C:\Users\Oscar Haglund.m2\repository\com\fasterxml\jackson\core\jackson-annotations\2.9.0\jackson-annotations-2.9.0.jar;C:\Users\Oscar Haglund.m2\repository\com\fasterxml\jackson\core\jackson-core\2.9.5\jackson-core-2.9.5.jar;C:\Users\Oscar Haglund.m2\repository\org\mockito\mockito-junit-jupiter\3.5.10\mockito-junit-jupiter-3.5.10.jar;C:\Users\Oscar Haglund.m2\repository\org\mockito\mockito-core\3.5.10\mockito-core-3.5.10.jar;C:\Users\Oscar Haglund.m2\repository\net\bytebuddy\byte-buddy\1.10.13\byte-buddy-1.10.13.jar;C:\Users\Oscar Haglund.m2\repository\net\bytebuddy\byte-buddy-agent\1.10.13\byte-buddy-agent-1.10.13.jar;C:\Users\Oscar Haglund.m2\repository\org\objenesis\objenesis\3.1\objenesis-3.1.jar;C:\Users\Oscar Haglund.m2\repository\org\junit\platform\junit-platform-launcher\1.7.0\junit-platform-launcher-1.7.0.jar;C:\dev\eclipse\configuration\org.eclipse.osgi\259 \0.cp;C:\dev\eclipse\configuration\org.eclipse.osgi\257\0.cp" --patch-module "com.spacemetric.spring.jpmstest=C:\dev\source\spring-jpms-test\target\test-classes" --add-reads com.spacemetric.spring.jpmstest=ALL-UNNAMED org.eclipse.jdt.internal.junit.runner.RemoteTestRunner -version 3 -port 55245 -testLoaderClass org.eclipse.jdt.internal.junit5.runner.JUnit5TestLoader -loaderpluginname org.eclipse.jdt.junit5.runtime -classNames com.spacemetric.spring.jpmstest.TestControllerTest

Answer 1

首先将module-info.java 放入src/main/java，而不是src/test/java。我也将其稍微更改为：

module spring.jpms.test {
   requires spring.core;
   requires spring.context;
   requires spring.beans;
   requires spring.security.config;
   requires spring.security.web;
   requires spring.webmvc;
   requires spring.security.core;
   requires javax.servlet.api;
   requires spring.web;

   opens com.spacemetric.spring.jpmstest;

}

但无论如何，这只能“部分”解决，因为：

欢迎来到modules 和spring（或一般工具）的相当粗略的现实。看看here, where people have the same problems。我发现唯一可行的解​​决方案是：

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-surefire-plugin</artifactId>
    <version>3.0.0-M5</version>
    <configuration>
        <useModulePath>false</useModulePath>
    </configuration>
</plugin>

这适用于mvn clean install（和junit5），我还没有尝试或玩足够的intellij 使其工作。