SpringBoot - 无法启动嵌入式TomCat

时间：2016-04-26 08:40:49

标签： java spring tomcat

我有一个Spring Boot应用程序。它在2台服务器上运行。服务器具有相同的配置。 其中一个是有效的......另一个是我在启动时遇到这个异常

2016-04-26 08:24:17.633 ERROR [localhost-startStop-1]: Error starting Tomcat context: org.springframework.beans.factory.BeanCreationException
2016-04-26 08:24:17.903 ERROR [main]: Application startup failed
org.springframework.context.ApplicationContextException: Unable to start embedded container; nested exception is org.springframework.boot.context.embedded.EmbeddedServletContainerException: Unable to start embedded Tomcat
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.onRefresh(EmbeddedWebApplicationContext.java:133)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:532)
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:118)
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:766)
    at org.springframework.boot.SpringApplication.createAndRefreshContext(SpringApplication.java:361)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:307)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1191)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1180)
    at it.besmart.parkserver.StartServer.main(StartServer.java:13)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:54)
    at java.lang.Thread.run(Thread.java:745)
Caused by: org.springframework.boot.context.embedded.EmbeddedServletContainerException: Unable to start embedded Tomcat
    at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.initialize(TomcatEmbeddedServletContainer.java:99)
    at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.<init>(TomcatEmbeddedServletContainer.java:76)
    at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory.getTomcatEmbeddedServletContainer(TomcatEmbeddedServletContainerFactory.java:457)
    at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory.getEmbeddedServletContainer(TomcatEmbeddedServletContainerFactory.java:168)
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.createEmbeddedServletContainer(EmbeddedWebApplicationContext.java:160)
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.onRefresh(EmbeddedWebApplicationContext.java:130)
    ... 14 more

堆栈跟踪会继续进行很多行，主要是因为根本原因导致自动布线和注入活动出现问题

Invocation of init method failed; nested exception is org.hibernate.HibernateException: Access to DialectResolutionInfo cannot be null when 'hibernate.dialect' not set

但是我的db.properties文件是：

jdbc.driverClassName = com.mysql.jdbc.Driver
jdbc.url = jdbc:mysql://192.168.3.240:3306/SMARTPARK?useSSL=false
jdbc.username = parkuser
jdbc.password = xxxxxxxxxxxxxxxx
hibernate.dialect = org.hibernate.dialect.MySQLDialect
hibernate.show_sql = false
hibernate.format_sql = false

数据库正在运行（第二台服务器定期连接到它......），用户和主机的所有权限都是正确的

这是我的pom.xml 

<?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>it.besmart</groupId>
    <artifactId>eparkserver</artifactId>
    <version>1.0.0</version>
    <packaging>jar</packaging>

    <name>eparkserver</name>
    <description>ePark server</description>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.3.3.RELEASE</version>
        <relativePath /> <!-- lookup parent from repository -->
    </parent>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <java.version>1.8</java.version>
        <start-class>it.besmart.parkserver.StartServer</start-class>
        <!-- 
        <tomcat.version>8.0.29</tomcat.version>
         -->
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
            <exclusions>
                <exclusion>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-starter-logging</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-log4j</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-rest</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>
        <dependency>
            <groupId>com.pi4j</groupId>
            <artifactId>pi4j-core</artifactId>
            <version>1.0</version>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-core</artifactId>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
        </dependency>
    </dependencies>
    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                    <executable>true</executable>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-antrun-plugin</artifactId>
                <executions>
                    <execution>
                        <id>server-copy</id>
                        <goals>
                            <goal>run</goal>
                        </goals>
                        <phase>package</phase>
                        <configuration>
                            <target>
                                <echo message="Push to server /home/pi/park/" />
                                <scp trust="yes" todir="pi:sofia2011@192.168.3.67:/home/pi/park/">
                                    <fileset dir="${basedir}/target">
                                    </fileset>
                                </scp>
                            </target>
                        </configuration>
                    </execution>
                </executions>
                <dependencies>
                    <dependency>
                        <groupId>org.apache.ant</groupId>
                        <artifactId>ant-jsch</artifactId>
                        <version>1.9.6</version>
                    </dependency>
                </dependencies>
            </plugin>
        </plugins>
    </build>
</project>

我所有的hibernate设置都在HibernateConfiguration.class中（我将这个应用程序从Spring MVC迁移到Spring Boot）

@Configuration
@EnableTransactionManagement
@ComponentScan({ "it.besmart" })
@PropertySource(value = { "classpath:db.properties" })
public class HibernateConfiguration {

@Autowired
private Environment environment;

@Bean
public LocalSessionFactoryBean sessionfactory(){
    LocalSessionFactoryBean sessionFactory = new LocalSessionFactoryBean();
    sessionFactory.setDataSource(dataSource());
    sessionFactory.setPackagesToScan(new String[] {"it.besmart.models"});
    sessionFactory.setHibernateProperties(hibernateProperties());
    return sessionFactory;
}

@Bean
public DataSource dataSource() {
    DriverManagerDataSource dataSource = new DriverManagerDataSource();
    dataSource.setDriverClassName(environment.getRequiredProperty("jdbc.driverClassName"));
    dataSource.setUrl(environment.getRequiredProperty("jdbc.url"));
    dataSource.setUsername(environment.getRequiredProperty("jdbc.username"));
    dataSource.setPassword(environment.getRequiredProperty("jdbc.password"));
    return dataSource;
}

private Properties hibernateProperties() {
    Properties properties = new Properties();
    properties.put("hibernate.dialect", environment.getRequiredProperty("hibernate.dialect"));
    properties.put("hibernate.show_sql", environment.getRequiredProperty("hibernate.show_sql"));
    properties.put("hibernate.format_sql", environment.getRequiredProperty("hibernate.format_sql"));
    return properties;        
}

@Bean
@Autowired
public HibernateTransactionManager transactionManager(SessionFactory s) {
   HibernateTransactionManager txManager = new HibernateTransactionManager();
   txManager.setSessionFactory(s);
   return txManager;
}
}

我不知道发生了什么

7 个答案:

答案 0 :(得分：3)

可能您可以通过更改项目sdk来避免这种情况。

在我的项目中，我最初使用 java-11-openjdk-amd64 作为我的JDK，并且存在相同的问题。

将JDK更改为 java-8-oracle 后，它可以工作了。

答案 1 :(得分：2)

我遇到了同样的问题。加上这个：

<dependency>
<groupId><groupId></groupId>
<artifactId><some dependency></artifactId>
<version><version></version>
<exclusions>
    <exclusion>
        <groupId>javax.servlet</groupId>
        <artifactId>servlet-api</artifactId>
    </exclusion>
</exclusions>

答案 2 :(得分：1)

就我而言，该项目正在使用Java 8，但在我的配置中，该项目设置为Java 11。 转到项目结构-> 项目-> 项目SDK ，然后更改 java版本。 希望对您有所帮助。

答案 3 :(得分：0)

1）使用Spring Boot时，不应直接包含其他Spring依赖项，而应依赖Boot自己的依赖项管理。使用提供的“启动器”时，您可以确保所有需要的库都包含在匹配的版本中。文档：https://spring.io/guides/gs/spring-boot/#use-maven

2）调度指南不是一个Web应用程序，所以你可能在REST指南的pom.xml中有一些发霉的东西？

“好”的pom会有“spring-boot-starter-web”（为方便起见），或者单独列出的启动器中包含的所有依赖项。检查一下你是否拥有它们。还要确保在SpringApplication中包含@EnableAutoConfiguration。将要在Object数组中运行的类添加到SpringApplication的run方法：SpringApplication.run（new Object [] {Application.class，ScheduledTasks.class}，args）;

享受:)

答案 4 :(得分：0)

在src / main / resources下添加一个名为application.properties

的新文件 
spring.datasource.driverClassName=com.mysql.jdbc.Driver
spring.datasource.url=jdbc:mysql://192.168.3.240:3306/SMARTPARK?useSSL=false
spring.datasource.password=xxxxxxxxxxxxxxxx
spring.datasource.username=parkuser
spring.jpa.database-platform=org.hibernate.dialect.MySQLDialect
spring.jpa.show-sql=true

删除HibernateConfiguration课程＆amp;在您的Main类上放置@EnableTransactionManagement注释。

答案 5 :(得分：0)

可能与“ starter-web”和嵌入式tomcat之间的servlet.jar冲突有关，请改用以下内容。

 <groupId>org.springframework.boot</groupId>
 <artifactId>spring-boot-starter-web</artifactId>
 <version>2.0.4.RELEASE</version>

答案 6 :(得分：0)

突然我遇到了同样的错误，但是对我来说，这是下面的依赖性，只是在这里回答以节省其他人的时间

spring-boot-devtools

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