我是个新手,正在尝试创建我的第一个RESTful服务。我是用Spring Boot实现的,JPA从MySQL数据库映射,并作为war工件部署到Tomcat。我还使用所有默认设置将MySQL数据库部署到AWS in RDC服务。在本地Tomcat上,所有这些都运行得很好。当在AWS tomcat上尝试相同的war工件时:使用所有默认设置的部署: web API工作: RESTful服务可以处理返回的java资源,但当尝试从数据库检索数据时,与数据库的连接不起作用。在日志中我可以看到:原因: com.mysql.jdbc.exceptions.jdbc4.CommunicationsExcepti
当spring引导版本为1.5.3.RELEASE,时,我在启动应用程序时出现了以下错误
Stacktrace:
java.lang.IllegalStateException: Restarter has not been initialized
at org.springframework.util.Assert.state(Assert.java:392) ~[spring-core-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at org.springframework.boot.devtools.restart.Restarter.getInst
尝试遵循中的指南,但是当我启动java应用程序时,它显示了以下错误:
Failed to configure a DataSource: 'url' attribute is not specified and no embedded datasource could be configured.
Reason: Failed to determine a suitable driver class
Action:
Consider the following:
If you want an embedded database (H2, HSQL or Derb
我正在尝试用Java9做一个Spring Boot Maven多模块应用程序,它可以在不添加Spring数据支持和@Entity类的情况下工作,但现在它不能启动。问题是以下例外情况:
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [org/springframework/boot/autoconfigure/orm/jpa/HibernateJp
在从Spring 2.5.2升级到2.5.3之后,我们得到以下错误:
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'flywayInitializer' defined in class path resource [org/springframework/boot/autoconfigure/flyway/FlywayAutoConfiguration$FlywayConfiguration.class]: Invocation of init m
嗨,我是Spring batch的新手,我得到了以下我无法解决的异常:
java.lang.IllegalStateException: Failed to execute CommandLineRunner
at org.springframework.boot.SpringApplication.callRunner(SpringApplication.java:800) [spring-boot-2.0.1.RELEASE.jar:2.0.1.RELEASE]
at org.springframework.boot.SpringApplication.callRunners(Spring