Java Spring Boot在外部tomcat部署上抛出NoSuchMethodError org.springframework.util.StringUtils.isEmpty

我在带有spring引导的外部tomcat上以war文件的形式提供spring rest服务

原因：java.lang.NoSuchMethodError:org.springframework.util.StringUtils.isEmpty（Ljava/lang/Object；）Z

spring版本由maven中的springbootstarter父级管理，但我总是遇到一个异常，这是不兼容spring版本的典型异常。我用以下方法进行测试：

• spring boot starter父版本v*1.2.7.发行版*和v*1.3.0.BUILD-SNAPSHOT*

• tomcat v8.0.3和8.0.28

奇怪的是，我还部署为无bug的可运行jar文件。我还反编译了war文件，并在\WEB-INF\lib\spring-core-4.1.8.RELEASE中找到了该文件

我还检查了maven调试输出，发现只有一个版本正确的spring核心工件（4.1.8.RELEASE）

tomcat是否也可能在内部使用spring内核，是否存在冲突

部署时Tomcat日志文件中出现异常：

Caused by: java.lang.NoSuchMethodError: org.springframework.util.StringUtils.isEmpty(Ljava/lang/Object;)Z
    at org.springframework.boot.logging.logback.LogbackLoggingSystem.getLogger(LogbackLoggingSystem.java:159)
    at org.springframework.boot.logging.logback.LogbackLoggingSystem.beforeInitialize(LogbackLoggingSystem.java:91)
    at org.springframework.boot.logging.LoggingApplicationListener.onApplicationStartedEvent(LoggingApplicationListener.java:155)
    at org.springframework.boot.logging.LoggingApplicationListener.onApplicationEvent(LoggingApplicationListener.java:141)
    at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:151)
    at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:128)
    at org.springframework.boot.context.event.EventPublishingRunListener.publishEvent(EventPublishingRunListener.java:100)
    at org.springframework.boot.context.event.EventPublishingRunListener.started(EventPublishingRunListener.java:54)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:278)
    at org.springframework.boot.context.web.SpringBootServletInitializer.run(SpringBootServletInitializer.java:134)
    at org.springframework.boot.context.web.SpringBootServletInitializer.createRootApplicationContext(SpringBootServletInitializer.java:125)
    at org.springframework.boot.context.web.SpringBootServletInitializer.onStartup(SpringBootServletInitializer.java:81)
    at org.springframework.web.SpringServletContainerInitializer.onStartup(SpringServletContainerInitializer.java:175)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5170)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    ... 45 more

...
<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.2.7.RELEASE</version>
</parent>
<properties>
    <java.version>1.8</java.version>
</properties>
<dependencies>
        <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-orm</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-jms</artifactId>
    </dependency>
    <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>de.cherrypit</groupId>
        <artifactId>lisa</artifactId>
        <version>0.1.1-SNAPSHOT</version>
    </dependency>
    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-core</artifactId>
        <version>5.0.2.Final</version>
    </dependency>
    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
    </dependency>
    <dependency>
        <groupId>org.apache.activemq</groupId>
        <artifactId>activemq-broker</artifactId>
    </dependency>
    <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-web</artifactId>
    </dependency>
</dependencies>
<build>
    <plugins>
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
        </plugin>
    </plugins>
</build>
<repositories>
    <repository>
        <id>spring-releases</id>
        <url>https://repo.spring.io/libs-release</url>
    </repository>
</repositories>
<pluginRepositories>
    <pluginRepository>
        <id>spring-releases</id>
        <url>https://repo.spring.io/libs-release</url>
    </pluginRepository>
</pluginRepositories>
<packaging>war</packaging>
...

My pom.xml:

Caused by: java.lang.NoSuchMethodError: org.springframework.util.StringUtils.isEmpty(Ljava/lang/Object;)Z
    at org.springframework.boot.logging.logback.LogbackLoggingSystem.getLogger(LogbackLoggingSystem.java:159)
    at org.springframework.boot.logging.logback.LogbackLoggingSystem.beforeInitialize(LogbackLoggingSystem.java:91)
    at org.springframework.boot.logging.LoggingApplicationListener.onApplicationStartedEvent(LoggingApplicationListener.java:155)
    at org.springframework.boot.logging.LoggingApplicationListener.onApplicationEvent(LoggingApplicationListener.java:141)
    at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:151)
    at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:128)
    at org.springframework.boot.context.event.EventPublishingRunListener.publishEvent(EventPublishingRunListener.java:100)
    at org.springframework.boot.context.event.EventPublishingRunListener.started(EventPublishingRunListener.java:54)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:278)
    at org.springframework.boot.context.web.SpringBootServletInitializer.run(SpringBootServletInitializer.java:134)
    at org.springframework.boot.context.web.SpringBootServletInitializer.createRootApplicationContext(SpringBootServletInitializer.java:125)
    at org.springframework.boot.context.web.SpringBootServletInitializer.onStartup(SpringBootServletInitializer.java:81)
    at org.springframework.web.SpringServletContainerInitializer.onStartup(SpringServletContainerInitializer.java:175)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5170)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    ... 45 more

...
<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.2.7.RELEASE</version>
</parent>
<properties>
    <java.version>1.8</java.version>
</properties>
<dependencies>
        <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-orm</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-jms</artifactId>
    </dependency>
    <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>de.cherrypit</groupId>
        <artifactId>lisa</artifactId>
        <version>0.1.1-SNAPSHOT</version>
    </dependency>
    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-core</artifactId>
        <version>5.0.2.Final</version>
    </dependency>
    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
    </dependency>
    <dependency>
        <groupId>org.apache.activemq</groupId>
        <artifactId>activemq-broker</artifactId>
    </dependency>
    <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-web</artifactId>
    </dependency>
</dependencies>
<build>
    <plugins>
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
        </plugin>
    </plugins>
</build>
<repositories>
    <repository>
        <id>spring-releases</id>
        <url>https://repo.spring.io/libs-release</url>
    </repository>
</repositories>
<pluginRepositories>
    <pluginRepository>
        <id>spring-releases</id>
        <url>https://repo.spring.io/libs-release</url>
    </pluginRepository>
</pluginRepositories>
<packaging>war</packaging>
...

。。。
org.springframework.boot
spring启动程序父级
1.2.7.发布
1.8
org.springframework
春季甲虫
org.springframework
SpringJMS
朱尼特
朱尼特
测试
樱桃核
丽莎
0.1.1-快照
org.hibernate
冬眠核心
5.0.2.2最终版本
mysql
mysql连接器java
org.apache.activemq
activemq代理
org.springframework.boot
弹簧启动机tomcat
假如
org.springframework.boot
SpringBootStarterWeb
org.springframework.boot
springbootmaven插件
春假
https://repo.spring.io/libs-release
春假
https://repo.spring.io/libs-release
战争
...

我发现了我的错误。我也会在我的项目共享库中添加SpringAndroid内核

不要在类路径中使用spring-android-core和spring-core

---

考虑将${Spring版本}添加到Spring依赖程序中。你说得对。这是一个spring类方法：）@JustinKSU如果我添加spring.version我会变成这个警告：

这个表达式的计算结果为4.1.8.RELEASE属性在org.springframework.boot:spring boot dependencies:1.2.7.RELEASE

@JustinKSU我会得到与${spring.version}相同的异常如果你得到一个NoSuchMethod，该类很可能已加载到其他版本中。最好的方法是检查依赖项，如：

mvn-dependency:tree>c:\dep.txt