【问题标题】:spring-boot application without a datasource没有数据源的spring-boot应用程序
【发布时间】:2015-11-11 12:30:26
【问题描述】:

是否可以创建没有数据源的 spring-boot 应用程序?就我而言,我只需要一个简单的 REST 应用程序,但似乎在启动时尝试自动初始化数据源

我的 pom.xml 是

<?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>a.b.c.d.test</groupId>
    <artifactId>rest-customer-builder</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>war</packaging>

    <name>rest-customer-builder</name>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.2.5.RELEASE</version>
        <!--<relativePath/> lookup parent from repository -->
    </parent>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <java.version>1.7</java.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-tomcat</artifactId>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

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

我的 application.properties 是

server.contextPath=/rest-customer-builder
server.port=9090

当我跑步时

mvn clean install spring-boot:run

我看到了这个错误

015-08-18 14:54:31.870  INFO 12530 --- [lication.main()] f.a.AutowiredAnnotationBeanPostProcessor : JSR-330 'javax.inject.Inject' annotation found and supported for autowiring
2015-08-18 14:54:31.903  WARN 12530 --- [lication.main()] ationConfigEmbeddedWebApplicationContext : Exception encountered during context initialization - cancelling refresh attempt

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.boot.context.properties.ConfigurationPropertiesBindingPostProcessor': Invocation of init method failed; nested exception is java.lang.NoClassDefFoundError: org/apache/geronimo/osgi/locator/ProviderLocator
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1574)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:303)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:299)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)
    at org.springframework.context.support.PostProcessorRegistrationDelegate.registerBeanPostProcessors(PostProcessorRegistrationDelegate.java:199)
    at org.springframework.context.support.AbstractApplicationContext.registerBeanPostProcessors(AbstractApplicationContext.java:615)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:465)
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:118)
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:686)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:320)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:957)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:946)
    at com.bearingpoint.eircom.test.rest.customerbuilder.RestCustomerBuilderApplication.main(RestCustomerBuilderApplication.java:12)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.springframework.boot.maven.RunMojo$LaunchRunner.run(RunMojo.java:418)
    at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.NoClassDefFoundError: org/apache/geronimo/osgi/locator/ProviderLocator
    at javax.validation.Validation$DefaultValidationProviderResolver.getValidationProviders(Validation.java:209)
    at javax.validation.Validation$GenericBootstrapImpl.configure(Validation.java:173)
    at org.springframework.validation.beanvalidation.LocalValidatorFactoryBean.afterPropertiesSet(LocalValidatorFactoryBean.java:223)
    at org.springframework.boot.context.properties.ConfigurationPropertiesBindingPostProcessor$Jsr303ValidatorFactory.run(ConfigurationPropertiesBindingPostProcessor.java:381)
    at org.springframework.boot.context.properties.ConfigurationPropertiesBindingPostProcessor.afterPropertiesSet(ConfigurationPropertiesBindingPostProcessor.java:174)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1633)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1570)
    ... 21 common frames omitted
Caused by: java.lang.ClassNotFoundException: org.apache.geronimo.osgi.locator.ProviderLocator
    at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
    at java.security.AccessController.doPrivileged(Native Method)

【问题讨论】:

  • 是的,这是可能的。能否请您出示您的 pom.xml 文件或 gradle 等效文件
  • 你必须在类路径上比你在 pom.xml 中列出的更多。 Jsr303ValidatorFactory 只有在类路径上有各种 javax.validation 类时才会运行。看起来你在类路径上有一些东西,其中包含指向 org/apache/geronimo/osgi/locator/ProviderLocator 的元数据

标签: spring-boot


【解决方案1】:

至于 Spring Boot 当前版本(2.5.4)可以放在@SpringBootApplication 注解上 像这样:

@SpringBootApplication(exclude = {DataSourceAutoConfiguration.class, HibernateJpaAutoConfiguration.class})
public class YourApplication {
public static void main(String[] args) {
    SpringApplication.run(YourApplication.class, args);
}

【讨论】:

    【解决方案2】:

    我遇到了这个问题,一旦我删除了以下依赖项,它就开始工作了。

    <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>
    

    【讨论】:

      【解决方案3】:

      可以在没有数据源的情况下运行 Spring Boot 应用程序。 您必须禁用数据源的自动配置,也可能适用于 JPA:

      @EnableAutoConfiguration(exclude={DataSourceAutoConfiguration.class,HibernateJpaAutoConfiguration.class})
      

      您发布的异常是其他内容,如 cmets 中所写,您在类路径中有一些内容引用了缺少的 apache geronimo 类。 因此,您必须摆脱引用 geronimo 的代码/jar 或将 geronimo 添加到您的依赖项中。

      【讨论】:

      • 这对我有用。我只需要排除DataSourceAutoConfiguration
      【解决方案4】:

      @Stefan +1 如果您使用 YAML 文件进行配置,就是这样

      spring:
        profiles: dev
        autoconfigure:
          exclude:
          - org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration
          - org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaAutoConfiguration
      

      对我来说效果很好。

      【讨论】:

        【解决方案5】:

        在 application.properties 文件中提供 spring.datasource.url。它对我有用。 例子: spring.datasource.url=jdbc:mysql://localhost/Test_DB

        【讨论】:

        • 上面提到不需要数据源,所以绝对不需要为mysql添加配置。
        【解决方案6】:

        解决此问题的更好方法是从 POM/Gradle 配置文件中删除依赖项,Spring Boot 不会尝试自动配置 DataSource。

        【讨论】:

        • 例如如果您使用的是 Spring boot,请从依赖项中删除“org.springframework.boot:spring-boot-starter-data-jpa”。
        • 从 POM 中删除 org.springframework.boot:spring-boot-starter-data-jpa 成功了,谢谢
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