SpringBoot为java9使用拼图模块

Question

我想写一个简单的弹簧启动应用程序，我可以使用Java 9运行。我无法在jdk9下编译此应用程序。 我在记录模块周围出现一堆错误

有没有人有任何使用jdk9拼图概念下的Springboot的示例应用程序？

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.6.1:compile (default-compile) on project JigsawTest: Compilation failure: Compilation failure: 
[ERROR] the unnamed module reads package org.apache.commons.logging from both spring.jcl and jcl.over.slf4j 
[ERROR] module spring.aop reads package org.apache.commons.logging from both spring.jcl and jcl.over.slf4j 
[ERROR] module spring.context reads package org.apache.commons.logging from both spring.jcl and jcl.over.slf4j 
[ERROR] module spring.beans reads package org.apache.commons.logging from both spring.jcl and jcl.over.slf4j 
[ERROR] module spring.core reads package org.apache.commons.logging from both spring.jcl and jcl.over.slf4j 
[ERROR] module spring.web reads package org.apache.commons.logging from both spring.jcl and jcl.over.slf4j 
[ERROR] module spring.jcl reads package org.apache.commons.logging from both spring.jcl and jcl.over.slf4j 
[ERROR] module spring.boot.starter.web reads package org.apache.commons.logging from both spring.jcl and jcl.over.slf4j 
[ERROR] module spring.boot.starter reads package org.apache.commons.logging from both spring.jcl and jcl.over.slf4j 
[ERROR] module spring.boot.starter.logging reads package org.apache.commons.logging from both spring.jcl and jcl.over.slf4j 
[ERROR] module logback.classic reads package org.apache.commons.logging from both spring.jcl and jcl.over.slf4j 
[ERROR] module logback.core reads package org.apache.commons.logging from both spring.jcl and jcl.over.slf4j 
[ERROR] module slf4j.api reads package org.apache.commons.logging from both spring.jcl and jcl.over.slf4j 
[ERROR] module jcl.over.slf4j reads package org.apache.commons.logging from both spring.jcl and jcl.over.slf4j 
[ERROR] module jul.to.slf4j reads package org.apache.commons.logging from both spring.jcl and jcl.over.slf4j 
[ERROR] module log4j.over.slf4j reads package org.apache.commons.logging from both spring.jcl and jcl.over.slf4j 
[ERROR] module spring.boot.starter.tomcat reads package org.apache.commons.logging from both spring.jcl and jcl.over.slf4j 
[ERROR] module tomcat.embed.core reads package org.apache.commons.logging from both spring.jcl and jcl.over.slf4j 
[ERROR] module tomcat.embed.el reads package org.apache.commons.logging from both spring.jcl and jcl.over.slf4j 
[ERROR] module tomcat.embed.websocket reads package org.apache.commons.logging from both spring.jcl and jcl.over.slf4j 
[ERROR] module hibernate.validator reads package org.apache.commons.logging from both spring.jcl and jcl.over.slf4j 
[ERROR] module validation.api reads package org.apache.commons.logging from both spring.jcl and jcl.over.slf4j 
[ERROR] module jboss.logging reads package org.apache.commons.logging from both spring.jcl and jcl.over.slf4j 
[ERROR] module classmate reads package org.apache.commons.logging from both spring.jcl and jcl.over.slf4j 
[ERROR] module jackson.databind reads package org.apache.commons.logging from both spring.jcl and jcl.over.slf4j 
[ERROR] module jackson.annotations reads package org.apache.commons.logging from both spring.jcl and jcl.over.slf4j 
[ERROR] module jackson.core reads package org.apache.commons.logging from both spring.jcl and jcl.over.slf4j 
[ERROR] module spring.webmvc reads package org.apache.commons.logging from both spring.jcl and jcl.over.slf4j 
[ERROR] module spring.expression reads package org.apache.commons.logging from both spring.jcl and jcl.over.slf4j 
[ERROR] module spring.boot reads package org.apache.commons.logging from both spring.jcl and jcl.over.slf4j 
[ERROR] module spring.boot.autoconfigure reads package org.apache.commons.logging from both spring.jcl and jcl.over.slf4j 

Here is the link to my sample project in github

Answer 1

它看起来像：

1. 所有JAR最终模块路径（怪异）
2. spring.jcl和jcl.over.slf4j上包含很多相同的包裹

如果您无法修复1.，请尝试解决2.通过排除两个工件之一。

Answer 2

我能够到这个例子来编译here。此时mvn clean package使用Maven 3.5.0。请注意，我还没有尝试运行该应用程序。

注意，我做了以下修改：

按照惯例，源代码现在所在的模块名称匹配的文件夹中。

~/com.allstate.jigsaw/src/main/java/... 

的module-info.java文件已被简化了：

module com.allstate.jigsaw { 
    requires java.logging; 

    requires spring.boot; 
} 

另外的，pom.xml已经更新，使用Java 9.是在根父pom.xml，另一个在模块文件夹中。这里是主要的依赖项，在com.allstate.jigsaw/pom.xml

<dependency> 
    <groupId>org.springframework.boot</groupId> 
    <artifactId>spring-boot-starter-web</artifactId> 
    <version>1.5.6.RELEASE</version> 
</dependency>