Spring Boot Hibernate MySQL无法创建池的初始连接-Java 学习之路

下面是我从互联网上的大多数教程中复制的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>my.com.froggy</groupId>
    <artifactId>froggy</artifactId>
    <version>0.0.1</version>
    <packaging>jar</packaging>

    <name>demo</name>
    <description>My Project</description>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.4.1.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</java.version>
    </properties>

    <dependencies>
        <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>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.hibernate.javax.persistence</groupId>
            <artifactId>hibernate-jpa-2.1-api</artifactId>
            <version>1.0.0.Final</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>
        <dependency>
            <groupId>com.h2database</groupId>
            <artifactId>h2</artifactId>
        </dependency>
    </dependencies>

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


</project>

然后，下面是我在属性文件中放置的配置：

spring.datasource.url = jdbc:mysql://127.0.0.1/test 
spring.datasource.username = root 
spring.datasource.password = 

spring.jpa.hibernate.ddl-auto = create-drop

spring.datasource.testWhileIdle = true 
spring.datasource.timeBetweenEvictionRunsMillis = 60000 
spring.datasource.validationQuery = SELECT 1

可能是我的错误？我收到以下错误：

2016-09-25 22：58：18.297 INFO 8452 --- [main] org.hibernate.Version:HHH000412：Hibernate Core {5.0.11.Final} 2016-09-25 22：58：18.299 INFO 8452 - - [main] org.hibernate.cfg.Environment：HHH000205：来自资源hibernate.properties的加载属性：{spring.datasource.username = root，spring.datasource.testWhileIdle = true，spring.datasource.timeBetweenEvictionRunsMillis = 60000，spring.datasource .password =，spring.datasource.url = jdbc：mysql：//127.0.0.1/test,hibernate.bytecode.use_reflection_optimizer = false，spring.datasource.validationQuery = SELECT 1，spring.jpa.hibernate.ddl-auto = create -drop} 2016-09-25 22：58：18.300 INFO 8452 --- [main] org.hibernate.cfg.Environment：HHH000021：字节码提供者名称：javassist 2016-09-25 22：58：18.353 INFO 8452 - - [main] o.hibernate.annotations.common.Version：HCANN000001：Hibernate Commons Annotations {5.0.1.Final} 2016-09-25 22：58：19.706 ERROR 8452 --- [main] oatomcat.jdbc.pool .ConnectionPool：无法创建池的初始连接 . com.mysql.jdbc.exceptions.jdbc4.CommunicationsException：通信链路故障成功发送到服务器的最后一个数据包是0毫秒前 . 驱动程序未收到来自服务器的任何数据包 . 在sun.reflect.NalConstructorAccessorImpl.newInstance0（Native Method）〜[na：1.8.0_102] at sun.reflect.NativeConstructorAccessorImpl.newInstance（NativeConstructorAccessorImpl.java:62）〜[na：1.8.0_102] at sun.reflect.DelegatingConstructorAccessorImpl . newInstance（DelegatingConstructorAccessorImpl.java:45）〜[na：1.8.0_102]位于com.mysql.jdbc.Util的java.lang.reflect.Constructor.newInstance（Constructor.java:423）〜[na：1.8.0_102] . handleNewInstance（Util.java:404）〜[mysql-connector-java-5.1.39.jar：5.1.39] at com.mysql.jdbc.SQLError.createCommunicationsException（SQLError.java:988）〜[mysql-connector-java -5.1.39.jar：5.1.39]在com.mysql的com.mysql.jdbc.MysqlIO . （MysqlIO.java:341）〜[mysql-connector-java-5.1.39.jar：5.1.39] . jdbc.ConnectionImpl.coreConnect（ConnectionImpl.java:2251)~ [mysql-connector-java-5.1.39.jar：5.1.39] at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly（ConnectionImpl.java:2284)~ [mysql -connector-java-5.1.39.jar：5.1.39] at com.mysql.jdbc.ConnectionImpl.createNewIO（ConnectionImpl.j ava：2083）〜[mysql-connector-java-5.1.39.jar：5.1.39] at com.mysql.jdbc.ConnectionImpl . （ConnectionImpl.java:806)~ [mysql-connector-java-5.1.39 . jar：5.1.39] at com.mysql.jdbc.JDBC4Connection . （JDBC4Connection.java:47）〜[mysql-connector-java-5.1.39.jar：5.1.39] at sun.reflect.NativeConstructorAccessorImpl.newInstance0（Native方法）〜[na：1.8.0_102] at sun.reflect.NativeConstructorAccessorImpl.newInstance（NativeConstructorAccessorImpl.java:62）〜[na：1.8.0_102] at sun.reflect.DelegatingConstructorAccessorImpl.newInstance（DelegatingConstructorAccessorImpl.java:45）〜[ na：1.8.0_102] at java.lang.reflect.Constructor.newInstance（Constructor.java:423）〜[na：1.8.0_102] at com.mysql.jdbc.Util.handleNewInstance（Util.java:404）〜[ mysql-connector-java-5.1.39.jar：5.1.39] at com.mysql.jdbc.ConnectionImpl.getInstance（ConnectionImpl.java:410）〜[mysql-connector-java-5.1.39.jar：5.1.39 ]在org.apac的com.mysql.jdbc.NonRegisteringDriver.connect（NonRegisteringDriver.java:328）〜[mysql-connector-java-5.1.39.jar：5.1.39] he.tomcat.jdbc.pool.PooledConnection.connectUsingDriver（PooledConnection.java:310）〜[tomcat-jdbc-8.5.5.jar：na] at org.apache.tomcat.jdbc.pool.PooledConnection.connect（PooledConnection.java）：203）〜[tomcat-jdbc-8.5.5.jar：na] at org.apache.tomcat.jdbc.pool.ConnectionPool.createConnection（ConnectionPool.java:718)[tomcat-jdbc- 8.5.5.jar:na ] org.apache.tomcat.jdbc.pool.ConnectionPool.borrowConnection（ConnectionPool.java:650）[tomcat-jdbc-8.5.5.jar：na] at org.apache.tomcat.jdbc.pool.ConnectionPool.init（ ConnectionPool.java:468）[tomcat-jdbc-8.5.5.jar：na] at org.apache.tomcat.jdbc.pool.ConnectionPool . （ConnectionPool.java:143）[tomcat-jdbc-8.5.5.jar： na] at org.apache.tomcat.jdbc.pool.DataSourceProxy.pCreatePool（DataSourceProxy.java:118）[tomcat-jdbc-8.5.5.jar：na] at org.apache.tomcat.jdbc.pool.DataSourceProxy.createPool （DataSourceProxy.java:107）[tomcat-jdbc-8.5.5.jar：na] at org.apache.tomcat.jdbc.pool.DataSourceProxy.getConnection（DataSourceProxy.java:131）[tomcat-jdbc-8.5.5 . jar：na] at org.hi org.hibernate.engine.jdbc.env中的bernate.engine.jdbc.connections.internal.DatasourceConnectionProviderImpl.getConnection（DatasourceConnectionProviderImpl.java:122）[hibernate-core-5.0.11.Final.jar：5.0.11.Final] . internal.JdbcEnvironmentInitiator $ ConnectionProviderJdbcConnectionAccess.obtainConnection（JdbcEnvironmentInitiator.java:180）[hibernate-core-5.0.11.Final.jar：5.0.11.Final] at在org.hibernate.engine.jdbc上的org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService（JdbcEnvironmentInitiator.java:68）[hibernate-core-5.0.11.Final.jar：5.0.11.Final] . env.internal.JdbcEnvironmentInitiator.initiateService（JdbcEnvironmentInitiator.java:35）[hibernate-core-5.0.11.Final.jar：5.0.11.Final] org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.initiateService（StandardServiceRegistryImpl . java：88）[hibernate-core-5.0.11.Final.jar：5.0.11.Final] org.hibernate.service.internal.AbstractServiceRegistryImpl.createService（AbstractServiceRegistryImpl.java:254）[hibernate-core-5.0.11 .Final.jar：5.0.11.Final]在org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService（AbstractServiceRegistryImpl.java:228）[hibernate-core-5.0.11.Final.jar：5.0.11.Final] at at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService（AbstractServiceRegistryImpl.java:207）org.hibernate.engine中的[hibernate-core-5.0.11.Final.jar：5.0.11.Final] .jdbc.internal.JdbcServicesImpl.configure（JdbcServicesImpl.java:51）[hibernate-core-5.0.11.Final.jar：5.0.11.Final] org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.configureService（StandardServiceRegistryImpl .java：94）[hibernate-core-5.0.11.Final.jar：5.0.11.Final]在org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService（AbstractServiceRegistryImpl.java:237）[hibernate-core-5.0 . 11.Final.jar:5.0.11.Final]在org.hibernate.service.internal.AbstractServiceRegistryImpl.getService（AbstractServiceRegistryImpl.java:207）[hibernate-core-5.0.11.Final.jar：5.0.11.Final]在org.hibernate.boot.model的org.hibernate.boot.model.process.spi.MetadataBuildingProcess.handleTypes（MetadataBuildingProcess.java:352）[hibernate-core-5.0.11.Final.jar：5.0.11.Final] .process.spi.MetadataBuildingProcess.complete（MetadataBuildingProcess.java:111）[hibernate-core-5.0.11.Final.jar：5.0.11.Final] org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.metadata（Entity） ManagerFactoryBuilderImpl.java:847）[hibernate-entitymanager-5.0.11.Final.jar：5.0.11.Final] org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build（EntityManagerFactoryBuilderImpl.java:874）[hibernate-entitymanager -5.0.11.Final.jar:5.0.11.Final] at org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceProvider.createContainerEntityManagerFactory（SpringHibernateJpaPersistenceProvider.java:60）[spring-orm-4.3.3.RELEASE.jar：4.3 .3.RELEASE]在org.springframework.orm上的org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory（LocalContainerEntityManagerFactoryBean.java:353）[spring-orm-4.3.3.RELEASE.jar：4.3.3.RELEASE] . 在org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet（AbstractEntityManagerFactoryBean.java:362）的jpa.AbstractEntityManagerFactoryBean.buildNativeEntityManagerFactory（AbstractEntityManagerFactoryBean.java:373）[spring-orm-4.3.3.RELEASE.jar：4.3.3.RELEASE] [ spring ORM-4.3.3.RELEASE . jar：4.3.3.RELEASE] org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods（AbstractAutowireCapableBeanFactory.java:1642）org中的[spring-beans-4.3.3.RELEASE.jar：4.3.3.RELEASE] .springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean（AbstractAutowireCapableBeanFactory.java:1579）[spring-beans-4.3.3.RELEASE.jar：4.3.3.RELEASE] org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory .doCreateBean（AbstractAutowireCapableBeanFactory.java:545）[spring-beans-4.3.3.RELEASE.jar：4.3.3.RELEASE] org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean（AbstractAutowireCapableBeanFactory.java:482）[ spring-beans-4.3.3.RELEASE.jar：4.3.3.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory $ 1.getObject（AbstractBeanFactory.java:306）[spring-beans-4.3.3.RELEASE .jar：4.3.3.RELEASE] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSin org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean（AbstractBeanFactory.java:302）[spring-beans-4.3.3.RELEASE.jar：4.3.3.RELEASE] -beans-4.3.3.RELEASE.jar：4.3.3.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean（AbstractBeanFactory.java:197）[spring-beans-4.3.3.RELEASE.jar ：4.3.3.RELEASE]在org.springframework的org.springframework.context.support.AbstractApplicationContext.getBean（AbstractApplicationContext.java:1076）[spring-context-4.3.3.RELEASE.jar：4.3.3.RELEASE] . context.support.AbstractApplicationContext.finishBeanFactoryInitialization（AbstractApplicationContext.java:851）[spring-context-4.3.3.RELEASE.jar：4.3.3.RELEASE] org.springframework.context.support.AbstractApplicationContext.refresh（AbstractApplicationContext.java： 541）[spring-context-4.3.3.RELEASE.jar：4.3.3.RELEASE] atorg.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh（EmbeddedWebApplicationContext.java:122）[spring-boot-1.4.1.RELEASE.jar：1.4.1.RELEASE] org.springframework.boot.SpringApplication.refresh（ SpringApplication.java:761）[spring-boot-1.4.1.RELEASE.jar：1.4.1.RELEASE] org.springframework.boot.SpringApplication.refreshContext（SpringApplication.java:371）[spring-boot-1.4.1 .RELEASE.jar：1.4.1.RELEASE] org.springframework.boot.SpringApplication.run（SpringApplication.java:315）[spring-boot-1.4.1.RELEASE.jar：1.4.1.RELEASE] at org . springframework.boot.SpringApplication.run（SpringApplication.java:1186）[spring-boot-1.4.1.RELEASE.jar：1.4.1.RELEASE] org.springframework.boot.SpringApplication.run（SpringApplication.java:1175） [spring-boot-1.4.1.RELEASE.jar：1.4.1.RELEASE] at my.com.froggy.DemoApplication.main（DemoApplication.java:10）[classes /：na]引起：java.net.ConnectException ：拒绝连接：在java.net.DualStackPlainSocketImpl.connect0连接（本机M ethod）〜[na：1.8.0_102] java.net.DualStackPlainSocketImpl.socketConnect（DualStackPlainSocketImpl.java:79）〜[na：1.8.0_102] at java.net.AbstractPlainSocketImpl.doConnect（AbstractPlainSocketImpl.java:350)~ [ na：1.8.0_102] at java.net.AbstractPlainSocketImpl.connectToAddress（AbstractPlainSocketImpl.java:206）〜[na：1.8.0_102] at java.net.AbstractPlainSocketImpl.connect（AbstractPlainSocketImpl.java:188)~ [na：1.8 . 0_102] at java.net.PlainSocketImpl.connect（PlainSocketImpl.java:172）〜[na：1.8.0_102] at java.net.SocksSocketImpl.connect（SocksSocketImpl.java:392）〜[na：1.8.0_102] at java .net.Socket.connect（Socket.java:589）〜[na：1.8.0_102] at com.mysql.jdbc.StandardSocketFactory.connect（StandardSocketFactory.java:211）〜[mysql-connector-java-5.1.39 . jar：5.1.39]在com.mysql.jdbc.MysqlIO . （MysqlIO.java:300）〜[mysql-connector-java-5.1.39.jar：5.1.39] ... 59常见帧省略2016-09 -25 22：58：19.708 WARN 8452 --- [main] ohejeiJdbcEnvironmentInitiator：HHH000342：无法获得与qu的连接ery metadata：通信链路故障成功发送到服务器的最后一个数据包是0毫秒前 . 驱动程序未收到来自服务器的任何数据包 . 2016-09-25 22：58：19.711 WARN 8452 --- [main] ationConfigEmbeddedWebApplicationContext：在上下文初始化期间遇到异常 - 取消刷新尝试：org.springframework.beans.factory.BeanCreationException：创建名为'entityManagerFactory'的bean时出错class path resource [org / springframework / boot / autoconfigure / orm / jpa / HibernateJpaAutoConfiguration.class]：调用init方法失败;嵌套异常是org.hibernate.service.spi.ServiceException：无法创建请求的服务[org.hibernate.engine.jdbc.env.spi.JdbcEnvironment] 2016-09-25 22：58：19.714 INFO 8452 --- [main ] o.apache.catalina.core.StandardService：停止服务Tomcat 2016-09-25 22：58：19.726 INFO 8452 --- [main] utoConfigurationReportLoggingInitializer：启动ApplicationContext时出错 . 要显示自动配置报告，请在启用“debug”的情况下重新运行应用程序 . 2016-09-25 22：58：19.729 ERROR 8452 --- [main] osboot.SpringApplication：应用程序启动失败org.springframework.beans.factory.BeanCreationException：在类路径资源中定义名称为'entityManagerFactory'的bean创建错误[ org / springframework / boot / autoconfigure / orm / jpa / HibernateJpaAutoConfiguration.class]：调用init方法失败;嵌套异常是org.hibernate.service.spi.ServiceException：无法在org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean（AbstractAutowireCapableBeanFactory）中创建请求的服务[org.hibernate.engine.jdbc.env.spi.JdbcEnvironment] . java：1583）〜[spring-beans-4.3.3.RELEASE.jar：4.3.3.RELEASE] org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean（AbstractAutowireCapableBeanFactory.java:545）〜[spring-beans -4.3.3.RELEASE.jar：4.3.3.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean（AbstractAutowireCapableBeanFactory.java:482）〜[spring-beans-4.3.3.RELEASE.jar： 4.3.3.RELEASE] org.springframework.beans.factory.support.AbstractBeanFactory $ 1.getObject（AbstractBeanFactory.java:306）〜[spring-beans-4.3.3.RELEASE.jar：4.3.3.RELEASE] at org .springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton（DefaultSingletonBeanRegistry.java:230)~ [spring- bean-4.3.3.RELEASE.jar：4.3.3.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean（AbstractBeanFactory.java:302）〜[spring-beans-4.3.3.RELEASE.jar ：4.3.3.RELEASE] org.springframework.beans.factory.support.AbstractBeanFactory.getBean（AbstractBeanFactory.java:197）〜[spring-beans-4.3.3.RELEASE.jar：4.3.3.RELEASE] at org .springframework.context.support.AbstractApplicationContext.getBean（AbstractApplicationContext.java:1076）〜[spring-context-4.3.3.RELEASE.jar：4.3.3.RELEASE] atorg.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization（AbstractApplicationContext.java:851）〜[spring-context-4.3.3.RELEASE.jar：4.3.3.RELEASE] org.springframework.context.support.AbstractApplicationContext.refresh （AbstractApplicationContext.java:541）〜[spring-context-4.3.3.RELEASE.jar：4.3.3.RELEASE] org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh（EmbeddedWebApplicationContext.java:122)~ [ spring-boot-1.4.1.RELEASE.jar：1.4.1.RELEASE]在org.springframework.boot.SpringApplication.refresh（SpringApplication.java:761）[spring-boot-1.4.1.RELEASE.jar：1.4 . 1.RELEASE] org.springframework.boot.SpringApplication.refreshContext（SpringApplication.java:371）[spring-boot-1.4.1.RELEASE.jar：1.4.1.RELEASE] org.springframework.boot.SpringApplication.run （SpringApplication.java:315）[spring-boot-1.4.1.RELEASE.jar：1.4.1.RELEASE]在org.springframework.boot.SpringApplication.run（SpringApplication.java:1186）[spring-boot-1.4 . 1.RE LEASE.jar：1.4.1.RELEASE]在org.springframework.boot.SpringApplication.run（SpringApplication.java:1175）[spring-boot-1.4.1.RELEASE.jar：1.4.1.RELEASE] at my.com .froggy.DemoApplication.main（DemoApplication.java:10）[classes /：na]引起：org.hibernate.service.spi.ServiceException：无法创建请求的服务[org.hibernate.engine.jdbc.env.spi . JdbcEnvironment]在org.hibernate.service.internal的org.hibernate.service.internal.AbstractServiceRegistryImpl.createService（AbstractServiceRegistryImpl.java:264）〜[hibernate-core-5.0.11.Final.jar：5.0.11.Final] . 在org.hibernate.service.internal.AbstractServiceRegistryImpl.getService（AbstractServiceRegistryImpl.java:207）的AbstractServiceRegistryImpl.initializeService（AbstractServiceRegistryImpl.java:228）〜[hibernate-core-5.0.11.Final.jar：5.0.11.Final]〜 [hibernate-core-5.0.11.Final.jar：5.0.11.Final]在org.hibernate.engine.jdbc.internal.JdbcServicesImpl.configure（JdbcServicesImpl.java:51）〜[hibernate-core-5.0.11 . Final.jar：5.0.11.Final] at或org.hibernate.service.internal.AbstractServiceRegistryImpl中的g.hibernate.boot.registry.internal.StandardServiceRegistryImpl.configureService（StandardServiceRegistryImpl.java:94）〜[hibernate-core-5.0.11.Final.jar：5.0.11.Final] orin.hibernate.service.internal.AbstractServiceRegistryImpl.getService（AbstractServiceRegistryImpl.java:207）〜[ hibernate-core-5.0.11.Final.jar：5.0.11.Final] at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.handleTypes（MetadataBuildingProcess.java:352)~ [hibernate-core-5.0.11 .Final.jar：5.0.11.Final]在org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete（MetadataBuildingProcess.java:111）〜[hibernate-core-5.0.11.Final.jar：5.0 . 11.Final]在org.hibernate的org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.metadata（EntityManagerFactoryBuilderImpl.java:847）〜[hibernate-entitymanager-5.0.11.Final.jar：5.0.11.Final] . jpa.b oot.internal.EntityManagerFactoryBuilderImpl.build（EntityManagerFactoryBuilderImpl.java:874）〜[hibernate-entitymanager-5.0.11.Final.jar：5.0.11.Final] org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceProvider.createContainerEntityManagerFactory（SpringHibernateJpaPersistenceProvider） .java：60）〜[spring-orm-4.3.3.RELEASE.jar：4.3.3.RELEASE] org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory（LocalContainerEntityManagerFactoryBean.java:353）〜[spring-orm- 4.3.3.RELEASE.jar：4.3.3.RELEASE] at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.buildNativeEntityManagerFactory（AbstractEntityManagerFactoryBean.java:373)~ [spring-orm-4.3.3.RELEASE.jar：4.3.3 .RELEASE]在org.springframework.beans.factory的org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet（AbstractEntityManagerFactoryBean.java:362）〜[spring-orm-4.3.3.RELEASE.jar：4.3.3.RELEASE] .support.AbstractAutowireCapableBeanFactory.invokeInit方法（AbstractAutowireCapableBeanFactory.java:1642）〜[spring-beans-4.3.3.RELEASE.jar：4.3.3.RELEASE]在org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean（AbstractAutowireCapableBeanFactory.java:1579）〜 [spring-beans-4.3.3.RELEASE.jar：4.3.3.RELEASE] ...省略了16个常见帧引起：org.hibernate.HibernateException：当'hibernate.dialect'未设置为时，对DialectResolutionInfo的访问不能为null在org.hibernate.engine.jdbc上的org.hibernate.engine.jdbc.dialect.internal.DialectFactoryImpl.determineDialect（DialectFactoryImpl.java:100）〜[hibernate-core-5.0.11.Final.jar：5.0.11.Final] org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator中的.dialect.internal.DialectFactoryImpl.buildDialect（DialectFactoryImpl.java:54）〜[hibernate-core-5.0.11.Final.jar：5.0.11.Final] . initiateService（JdbcEnvironmentInitiator.java:137）〜[hibernate-core-5.0.11.Final.jar：5.0.11.Final] atorg.hibernate.engernate.boot.registry中的org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService（JdbcEnvironmentInitiator.java:35）〜[hibernate-core-5.0.11.Final.jar：5.0.11.Final] orin.hibernate.service.internal.AbstractServiceRegistryImpl.createService（AbstractServiceRegistryImpl.java：.internal.StandardServiceRegistryImpl.initiateService 254）〜[hibernate-core-5.0.11.Final.jar：5.0.11.Final] ...省略了32个常用帧

1 回答

1

我猜你错过了正确配置URL . MYSQL在端口3306上可用;但是，在你的网址中，你没有注意到该端口 .

回复于 2024-05-03T14:02:59+08:00

Spring Boot Hibernate MySQL无法创建池的初始连接

1 回答

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