我有一个Spring Boot应用程序。它在2台服务器上运行。这两台服务器具有相同的配置。其中一台可以正常工作......在另一台上，启动时出现此异常

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

堆栈跟踪持续了很多行，大多数情况下，我在自动连接和注入活动中遇到了问题，并找到了根本原因

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

但我的www.example.com文件是：db.properties file is:

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数据库..），用户和主机的所有权限均正确
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>

我所有的休眠设置都在HibernateConfiguration.class中（我将这个应用程序从Spring MVC迁移到了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

8条答案

按热度按时间

scyqe7ek1#

也许你可以通过改变你的项目sdk来避免这种情况。
在我的项目中，我最初使用java-11-openjdk-amd 64作为我的JDK，也遇到了同样的问题。
在将JDK更改为java-8-oracle后，它工作正常。

赞(0）回复(0）举报 2023-03-07

d7v8vwbk2#

我也有同样的问题。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>

ctrmrzij3#

在我的例子中，项目使用的是Java 8，但在我的配置中它被设置为Java 11。转到项目结构-〉项目-〉项目SDK并更改java版本。我希望它能有所帮助。

hgncfbus4#

1）当使用Spring Boot时，您不应该直接包含其他Spring依赖项，而是依赖于Boot自己的依赖项管理。当使用提供的"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：www.example.comhttps://spring.io/guides/gs/spring-boot/#use-maven
2)日程安排指南不是一个Web应用程序，所以你可能在你的pom.xml中有一些来自REST指南的发霉的东西？
一个"好的" pom应该有"spring-boot-starter-web"（为了方便），或者所有包含在启动器中的依赖项都单独列出。只要检查一下你有它们。还要确保你在你的SpringApplication中包含一个@EnableAutoConfiguration。把要在Object数组中运行的类添加到SpringApplication的run方法中：（新对象[] {应用程序.类，调度任务.类}，参数）;SpringApplication.run(new Object[]{Application.class, ScheduledTasks.class}, args);
享受：）

tvz2xvvm5#

在src/main/resources下添加名为www.example.com的新文件application.properties

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类并在主类上添加@EnableTransactionManagement注解。

fjnneemd6#

可能是关于'starter-web'和嵌入式tomcat之间的servlet.jar冲突，请使用以下代码。

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

zujrkrfu7#

突然我遇到了同样的错误，但对我来说，这是依赖下面，只是回答这里，以节省别人浪费时间
Spring启动开发工具

llmtgqce8#

如果有人和我一样愚蠢，结果是tomcat初始化使用默认属性来 Boot ，包括操作系统、内核等数据。
默认情况下，java会自动初始化这些值，但是可以使用System.setProperties(newProps);覆盖它们
这把我的雄猫弄坏了...

SpringBoot -无法启动嵌入式TomCat

8条答案

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