使用拼图模块使用jdk9运行spring boot [英] Run spring boot with jdk9 using jigsaw modules
问题描述
此应用程序有什么问题.我认为类路径jar和模块jar的混合是有效的.对于所有没有显式module-info的jar都变成自动模块了吗?当我删除我的module-info.java时，它可以工作.因为在这种情况下，IDEA使用类路径.
What's wrong with this application. I thought the mix of classpath jars and module jars are valid. For all jars not having an explicit module-info become an automatic module? When I delete my module-info.java it works. Because IDEA using the classpath for this case.
Java(TM)SE运行时环境(内部版本9 + 176)
Java(TM) SE Runtime Environment (build 9+176)
IntelliJ IDEA 2017.1.4
IntelliJ IDEA 2017.1.4
module-info.java
module-info.java
module test {
requires spring.boot.autoconfigure;
requires spring.boot;
}
App.java
package com.foo.test;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class App {
public static void main(String[] args) {
SpringApplication.run(App.class, args);
}
}
pom.xml
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.foo.test</groupId>
<artifactId>test</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>jar</packaging>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.0.M2</version>
</parent>
<name>test</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.9</maven.compiler.source>
<maven.compiler.target>1.9</maven.compiler.target>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
</dependencies>
<repositories>
<repository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/libs-milestone</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
</repositories>
</project>
线程主"中的异常java.lang.IllegalArgumentException:无法 实例化接口 org.springframework.context.ApplicationContextInitializer: org.springframework.boot.context.ConfigurationWarningsApplicationContextInitializer 在 spring.boot@2.0.0.M2/org.springframework.boot.SpringApplication.createSpringFactoriesInstances(SpringApplication.java:439) 在 spring.boot@2.0.0.M2/org.springframework.boot.SpringApplication.getSpringFactoriesInstances(SpringApplication.java:418) 在 spring.boot@2.0.0.M2/org.springframework.boot.SpringApplication.getSpringFactoriesInstances(SpringApplication.java:409) 在 spring.boot@2.0.0.M2/org.springframework.boot.SpringApplication.(SpringApplication.java:266) 在 spring.boot@2.0.0.M2/org.springframework.boot.SpringApplication.(SpringApplication.java:247) 在 spring.boot@2.0.0.M2/org.springframework.boot.SpringApplication.run(SpringApplication.java:1245) 在 spring.boot@2.0.0.M2/org.springframework.boot.SpringApplication.run(SpringApplication.java:1233) 在test/com.foo.test.App.main(App.java:10)的原因: java.lang.NoClassDefFoundError:java/sql/SQLException 在 spring.beans@5.0.0.RC2/org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:145) 在 spring.boot@2.0.0.M2/org.springframework.boot.SpringApplication.createSpringFactoriesInstances(SpringApplication.java:435) ... 7更多原因:java.lang.ClassNotFoundException: java.sql.SQLException在 java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:582) 在 java.base/jdk.internal.loader.ClassLoaders $ AppClassLoader.loadClass(ClassLoaders.java:185) 在java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:496) ...还有9个
Exception in thread "main" java.lang.IllegalArgumentException: Cannot instantiate interface org.springframework.context.ApplicationContextInitializer : org.springframework.boot.context.ConfigurationWarningsApplicationContextInitializer at spring.boot@2.0.0.M2/org.springframework.boot.SpringApplication.createSpringFactoriesInstances(SpringApplication.java:439) at spring.boot@2.0.0.M2/org.springframework.boot.SpringApplication.getSpringFactoriesInstances(SpringApplication.java:418) at spring.boot@2.0.0.M2/org.springframework.boot.SpringApplication.getSpringFactoriesInstances(SpringApplication.java:409) at spring.boot@2.0.0.M2/org.springframework.boot.SpringApplication.(SpringApplication.java:266) at spring.boot@2.0.0.M2/org.springframework.boot.SpringApplication.(SpringApplication.java:247) at spring.boot@2.0.0.M2/org.springframework.boot.SpringApplication.run(SpringApplication.java:1245) at spring.boot@2.0.0.M2/org.springframework.boot.SpringApplication.run(SpringApplication.java:1233) at test/com.foo.test.App.main(App.java:10) Caused by: java.lang.NoClassDefFoundError: java/sql/SQLException at spring.beans@5.0.0.RC2/org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:145) at spring.boot@2.0.0.M2/org.springframework.boot.SpringApplication.createSpringFactoriesInstances(SpringApplication.java:435) ... 7 more Caused by: java.lang.ClassNotFoundException: java.sql.SQLException at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:582) at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:185) at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:496) ... 9 more
推荐答案
我假设spring.boot是一个自动模块.自动模块没有声明其依赖关系，因此您必须使用--add-modules来确保所有需要的显式模块都得到了解决.如果spring.boot是一个显式模块，那么我认为它将是requires java.sql，并且您不会遇到此问题.
I assume spring.boot is an automatic module. An automatic module doesn't declare it dependences so you have to use --add-modules to ensure that any explicit modules needed are resolved. If spring.boot were an explicit module then I assume it would requires java.sql and you won't have this issue.
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