在 Tomcat 中部署 Spring Boot 战争答案

【问题标题】：Deploying Spring Boot war in a Tomcat在 Tomcat 中部署 Spring Boot 战争
【发布时间】：2015-10-28 17:31:58
【问题描述】：

我正在尝试在独立的 Tomcat 服务器中部署我的 Spring Boot 应用程序（war），每次我收到有关记录器的错误时。您对此案有什么想法吗？

Caused by: 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/slf4j/LoggerFactory
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.context.web.SpringBootServletInitializer.run(SpringBootServletInitializer.java:119)
at org.springframework.boot.context.web.SpringBootServletInitializer.createRootApplicationContext(SpringBootServletInitializer.java:110)
at org.springframework.boot.context.web.SpringBootServletInitializer.onStartup(SpringBootServletInitializer.java:69)
at org.springframework.web.SpringServletContainerInitializer.onStartup(SpringServletContainerInitializer.java:175)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5156)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
... 10 more

Caused by: java.lang.NoClassDefFoundError: org/slf4j/LoggerFactory
at org.jboss.logging.Slf4jLoggerProvider.getLogger(Slf4jLoggerProvider.java:29)
at org.jboss.logging.LoggerProviders.find(LoggerProviders.java:33)
at org.jboss.logging.LoggerProviders.<clinit>(LoggerProviders.java:28)
at org.jboss.logging.Logger.getLogger(Logger.java:2163)
at org.jboss.logging.Logger$1.run(Logger.java:2263)
at java.security.AccessController.doPrivileged(Native Method)
at org.jboss.logging.Logger.getMessageLogger(Logger.java:2227)
at org.jboss.logging.Logger.getMessageLogger(Logger.java:2214)
at org.hibernate.validator.internal.util.logging.LoggerFactory.make(LoggerFactory.java:29)
at org.hibernate.validator.internal.util.Version.<clinit>(Version.java:27)
at org.hibernate.validator.internal.engine.ConfigurationImpl.<clinit>(ConfigurationImpl.java:66)
at org.hibernate.validator.HibernateValidator.createGenericConfiguration(HibernateValidator.java:41)
at javax.validation.Validation$GenericBootstrapImpl.configure(Validation.java:276)
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)
... 28 more

Caused by: java.lang.ClassNotFoundException: org.slf4j.LoggerFactory
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)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
... 46 more

如您所见，我使用的是 tomcat 8.0.24、Spring Boot 1.2.5.RELEASE 和 java.version 1.7。
我的项目非常简单（它作为一个 jar 工作）：

1.主应用：

@SpringBootApplication
@ComponentScan
public class Application extends SpringBootServletInitializer {

  @Override
  protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
      return application.sources(Application.class);
  }

  public static void main(String[] args) {
      SpringApplication.run(Application.class, args);
  }
}

2。控制器

@Controller
public class IndexController {

  @RequestMapping(value = {"", "/", "/home"})
  String index() {
      return "index";
  }
}
//index.html is in the tamplates folder.

3. Pom.xml

<groupId>org.test</groupId>
<artifactId>demo</artifactId>
<version>1</version>
<packaging>war</packaging>

<name>demo</name>
<description>HelloWorld</description>

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

<properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <java.version>1.7</java.version>
    <!--<start-class>demo.Application</start-class>-->
</properties>

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

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

... etc

application.properties 是干净的。

【问题讨论】：

你在Tomcat的lib目录下有什么吗？
是的，我愿意。有库：annotations-api，catalina-ant，catalina-ha，catalina-storeconfig，catalina-tribes，catalina，ecj-4.4.2，el-api，jasper-el，jasper，jsp-api，servlet-api， tomcat-api, tomcat-coyote, tomcat-dbcp, tomcat-i18n, tomcat-jdbc, tomcat-jni, tomcat-util-scan, tomcat-util, tomcat-websocket, websocket-api。
我尝试了您的确切设置，一切正常。这一定是你没有展示的东西，或者尝试重建你的战争，也许你改变了一些东西。
令人惊讶的是，上次我的 Tomcat 在 jre 1.7 下工作。我已将其更改为 1.8，也将此项目更改为 1.8，现在它没有错误。谢谢！
FWIW，我什至尝试在 JRE 1.7 下运行 Tomcat 8，也没有出错，所以我也不相信是这样。无论如何，您的问题现在似乎已经消失了。

标签： java tomcat spring-boot war

【解决方案1】：

在你的 pom.xml 中添加对 slf4j 的依赖。

可能是 slf4j-api 和 jdk 日志实现。

<dependency>
    <groupId>org.slf4j</groupId>
    <artifactId>slf4j-api</artifactId>
    <version>1.7.10</version>
</dependency>
<dependency>
    <groupId>org.slf4j</groupId>
    <artifactId>slf4j-jdk14</artifactId>
    <version>1.7.10</version>
    <scope>runtime</scope>
</dependency>

另见how to log in tomcat using slf4j and java.util.logging

【讨论】：

我之前试图添加 slf4j 但它不能解决这个问题。这些依赖项同样的错误。

【解决方案2】：

在依赖中添加sl4j-api jar

<dependency>
    <groupId>org.slf4j</groupId>
    <artifactId>slf4j-api</artifactId>
    <version>1.7.12</version>
</dependency>

【讨论】：

【解决方案3】：

我知道有人删除了我的上一篇文章，但我仍然认为这是一个类加载器问题。

...我在 Tomcat 中使用 spring-hateoas 和 Spring boot 从一场战争中...并得到同样的错误。我相信这可能是类加载器问题，但还没有找到正确的解决方案。

避免使用 slf4j-api 将使应用程序启动，没有 LoggerFactory NoClassDefFoundError，但 hatoas 类仅存在于编译时，而不是运行时。

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-hateoas</artifactId>
    <exclusions>
        <exclusion>
            <artifactId>slf4j-api</artifactId>
            <groupId>org.slf4j</groupId>
        </exclusion>
    </exclusions>
</dependency>

【讨论】：