Question

我将<dependency> <groupId>org.springframework.security.oauth</groupId> <artifactId>spring-security-oauth2</artifactId> <version>2.2.0.RELEASE</version> </dependency>添加到我的pom.xml后：

Exception in thread "main" java.lang.IllegalArgumentException: Cannot instantiate interface org.springframework.context.ApplicationListener : org.springframework.boot.context.logging.ClasspathLoggingApplicationListener
    at org.springframework.boot.SpringApplication.createSpringFactoriesInstances(SpringApplication.java:439)
    at org.springframework.boot.SpringApplication.getSpringFactoriesInstances(SpringApplication.java:418)
    at org.springframework.boot.SpringApplication.getSpringFactoriesInstances(SpringApplication.java:409)
    at org.springframework.boot.SpringApplication.<init>(SpringApplication.java:268)
    at org.springframework.boot.SpringApplication.<init>(SpringApplication.java:247)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1245)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1233)

我开始

了

@SpringBootApplication

运行

<?xml version="1.0" encoding="UTF-8"?>
<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>

    <parent>
        <artifactId>server</artifactId>
        <groupId>mahlzeit</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>

    <artifactId>api</artifactId>

    <properties>
        <spring.boot.version>2.0.0.M5</spring.boot.version>
    </properties>

    <dependencies>

        <!-- Spring Framework Boot -->

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
            <version>${spring.boot.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-security</artifactId>
            <version>${spring.boot.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
            <version>${spring.boot.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <version>${spring.boot.version}</version>
            <scope>test</scope>
        </dependency>

        <!-- Spring Framework -->

        <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-jwt</artifactId>
            <version>1.0.8.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.security.oauth</groupId>
            <artifactId>spring-security-oauth2</artifactId>
            <version>2.2.0.RELEASE</version>
        </dependency>

        <dependency>
            <groupId>postgresql</groupId>
            <artifactId>postgresql</artifactId>
            <version>9.4.1208-jdbc42-atlassian-hosted</version>
        </dependency>

        <dependency>
            <groupId>commons-dbcp</groupId>
            <artifactId>commons-dbcp</artifactId>
            <version>1.4</version>
        </dependency>

        <dependency>
            <groupId>com.jayway.jsonpath</groupId>
            <artifactId>json-path</artifactId>
            <scope>test</scope>
        </dependency>

    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

    <repositories>
        <!-- Required since this is currently using Spring RC version -->
        <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>

后

。请注意我使用的是Spring Boot 2.0.0.M5，我认为这可能是问题的根源（w.r.t.版本）。

这是我正在使用的整个pom.xml：;

org.springframework.security.oauth:spring-security-oauth2

我怀疑这可能与冲突的版本有关 - stackoverflow上的大多数答案都是这样 - 但我无法弄清楚我在这里遇到的实际问题。

Spring Boot 2.0.0.M5状态的release notes：

OAuth 2.0支持

  Spring Security OAuth项目的功能正在迁移到核心Spring Security。已添加OAuth 2.0客户端支持，并将在适当时候迁移其他功能。

  如果您依赖尚未迁移的Spring Security OAuth功能，则需要添加int i = 0; int q = 0; scanf("%d %d", &i, &q);并手动配置。如果您只需要OAuth 2.0客户端支持，则可以使用Spring Boot 2.0提供的自动配置。我们还继续支持Spring Boot 1.5，因此旧的应用程序可以继续使用它，直到提供升级路径。

Answer 1

修复了示例pom的问题后，我现在可以看到失败的完整堆栈跟踪：

Exception in thread "main" java.lang.IllegalArgumentException: Cannot instantiate interface org.springframework.context.ApplicationListener : org.springframework.boot.context.logging.ClasspathLoggingApplicationListener
    at org.springframework.boot.SpringApplication.createSpringFactoriesInstances(SpringApplication.java:439)
    at org.springframework.boot.SpringApplication.getSpringFactoriesInstances(SpringApplication.java:418)
    at org.springframework.boot.SpringApplication.getSpringFactoriesInstances(SpringApplication.java:409)
    at org.springframework.boot.SpringApplication.<init>(SpringApplication.java:268)
    at org.springframework.boot.SpringApplication.<init>(SpringApplication.java:247)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1245)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1233)
    at mahlzeit.api.Application.main(Application.java:14)
Caused by: java.lang.NoClassDefFoundError: org/springframework/context/event/GenericApplicationListener
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
    at java.net.URLClassLoader.defineClass(URLClassLoader.java:467)
    at java.net.URLClassLoader.access$100(URLClassLoader.java:73)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:368)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:362)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:361)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    at org.springframework.util.ClassUtils.forName(ClassUtils.java:255)
    at org.springframework.boot.SpringApplication.createSpringFactoriesInstances(SpringApplication.java:431)
    ... 7 more
Caused by: java.lang.ClassNotFoundException: org.springframework.context.event.GenericApplicationListener
    at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    ... 21 more

问题的根本原因是org.springframework.context.event.GenericApplicationListener不在类路径上。此类是spring-context模块的一部分，是Spring Framework 4.2中的新增功能。

查看pom，您没有使用Boot的依赖关系管理（通过导入spring-boot-dependencies bom或使用spring-boot-starter-parent作为项目的父级。这意味着任何传递依赖关系的版本都不是由于您的项目通过spring-context过渡使用spring-security-oauth2的4.0.9.RELEASE，因此导致此问题。

我强烈建议您使用Spring Boot的依赖关系管理。如果您不想这样做或因某些未说明的原因而无法执行此操作，则必须手动确保所有传递依赖项都具有受支持的版本。

Answer 2

我在使用Gradle + Kotlin遇到此问题。解决方案是将我的库和主项目中的Spring Boot Gradle插件的版本设置为相同的值：

plugins {
    id("org.springframework.boot") version "2.2.2.RELEASE"
}

Answer 3

尝试使用以下配置并希望它能解决问题。

<?xml version="1.0" encoding="UTF-8"?>
<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>YOUR GROUP ID</groupId>
<artifactId>ART ID</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>

<name>YOUR PROJECT NAME</name>
<description>Demo project for Spring Boot</description>

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>2.0.2.RELEASE</version>
    <relativePath/> <!-- lookup parent from repository -->
</parent>

<properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
    <java.version>1.8</java.version>
</properties>
....
[YOUR REST OF CONFIGURATIONS]
....
</project>

祝你好运！萨拉姆

Answer 4

更新Maven项目解决了我的问题。

右键单击您的Project-> Maven-> Update Project 或快捷方式Alt+F5

选择Force Update of Snapshots/Releases

添加spring-security-oauth2后无法实例化接口org.springframework.context.ApplicationListener

4 个答案: