Java org.postgresql.util.PSQLException:致命：数据库；pma springbootdb"；

我正在开发我的第一个sprinboot应用程序，我试图在sprinboot应用程序中配置postgreSQL数据库的属性。当我运行此应用程序时，我遇到以下错误

**org.postgresql.util.PSQLException: FATAL: database "pma-springbootdb" does not exist**
    at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2533) ~[postgresql-42.2.12.jar:42.2.12]
    at org.postgresql.core.v3.QueryExecutorImpl.readStartupMessages(QueryExecutorImpl.java:2645) ~[postgresql-42.2.12.jar:42.2.12]
    at org.postgresql.core.v3.QueryExecutorImpl.<init>(QueryExecutorImpl.java:138) ~[postgresql-42.2.12.jar:42.2.12]
    at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:255) ~[postgresql-42.2.12.jar:42.2.12]
    at org.postgresql.core.ConnectionFactory.openConnection(ConnectionFactory.java:49) ~[postgresql-42.2.12.jar:42.2.12]
    at org.postgresql.jd
......
2020-06-03 09:33:13.052  WARN 1225 --- [         task-1] o.h.e.j.e.i.JdbcEnvironmentInitiator     : HHH000342: Could not obtain connection to query metadata : FATAL: database "pma-springbootdb" does not exist
2020-06-03 09:33:13.078  WARN 1225 --- [  restartedMain] ConfigServletWebServerApplicationContext : **Exception encountered during context initialization - cancelling refresh attempt: nested exception is org.springframework.beans.factory.BeanCreationException:** Error creating bean with name 'mvcConversionService' defined in class path resource [org/springframework/boot/autoconfigure/web/servlet/WebMvcAutoConfiguration$EnableWebMvcConfiguration.class]: Bean instantiation via factory method failed; nested exception is **org.springframework.beans.BeanInstantiationException: Failed to instantiate** 
**Related cause: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'requestMappingHandlerAdapter'** defined in class path resource [org/springframework/boot/autoconfigure/web/servlet/WebMvcAutoConfiguration$EnableWebMvcConfiguration.class]: Unsatisfied dependency expressed   : Invocation of destroy method failed on bean with name 'entityManagerFactory': org.hibernate.service.spi.ServiceException: Unable to create requested service [org.hibernate.engine.jdbc.env.spi.JdbcEnvironment]
2020-06-03 09:33:13.079  INFO 1225 --- [  restartedMain] o.s.s.concurrent.ThreadPoolTaskExecutor  : Shutting down ExecutorService 'applicationTaskExecutor'
2020-06-03 09:33:13.084  INFO 1225 --- [  restartedMain] o.apache.catalina.core.StandardService   : Stopping service [Tomcat]
2020-06-03 09:33:13.112  INFO 1225 --- [  restartedMain] ConditionEvaluationReportLoggingListener 
**Caused by: org.springframework.beans.factory.BeanCreationException:** Error creating bean with name 'mvcConversionService' defined in class path resource [org/springframework/boot/autoconfigure/web/servlet/WebMvcAutoConfiguration$EnableWebMvcConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.format.support.FormattingConversionService]: Factory method 'mvcConversionService' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'employeeRepository' defined in com.jrp.pma.dao.EmployeeRepository defined in @EnableJpaRepositories declared on JpaRepositoriesRegistrar.EnableJpaRepositoriesConfiguration: Cannot resolve reference to bean 'jpaMappingContext'

SQL查询

如果不存在员工，则创建序列

CREATE TABLE IF NOT EXISTS employee (

employee_id BIGINT NOT NULL DEFAULT nextval('employee_seq') PRIMARY KEY,
email VARCHAR(100) NOT NULL,
first_name VARCHAR(100) NOT NULL,
last_name VARCHAR(100) NOT NULL

);

CREATE SEQUENCE IF NOT EXISTS project_seq;

CREATE TABLE IF NOT EXISTS project (

project_id BIGINT NOT NULL DEFAULT nextval('project_seq') PRIMARY KEY,
name VARCHAR(100) NOT NULL,
stage VARCHAR(100) NOT NULL,
description VARCHAR(500) NOT NULL

);


CREATE TABLE IF NOT EXISTS project_employee (

project_id BIGINT REFERENCES project, 
employee_id BIGINT REFERENCES employee

);

Project.java

*

• Employee.java

*

---

消息

数据库“pma springbootdb”不存在

是不言自明的

在端口为5432的

localhost

上运行的PostgreSQL实例中不存在此数据库。要么是错误的数据库名称，要么是错误的实例

---

请仔细检查：pma springbootdb与pma springbootbd

我添加了postgreSQL数据库的屏幕截图，其中显示了pma springbootdb。我认为这不是问题所在。您真的确定此实例在端口为5432的

localhost

上运行吗？请发布

显示监听地址的输出；显示端口\l

（将使用

psql

CLI运行）。谢谢，我犯了一个拼写错误。即使在更正了文件名之后，我还是得到了“由以下原因引起的：org.springframework.beans.factory.BeanCreationException:”请在Java代码中双重检查您拥有的

pma springbootdb

在PostgreSQL中您拥有的

pma springbootbd

db

不同于

bd

如果您有另一条错误消息，请询问另一个问题，并显示完整的错误消息。我回滚了您上次的编辑。如果你在修正错别字后有不同的问题，请提出新的问题。不要把你的问题变成完全不同的问题。您可以删除此问题，因为它只是由打字错误引起的。当然可以。非常感谢。

CREATE TABLE IF NOT EXISTS employee (

employee_id BIGINT NOT NULL DEFAULT nextval('employee_seq') PRIMARY KEY,
email VARCHAR(100) NOT NULL,
first_name VARCHAR(100) NOT NULL,
last_name VARCHAR(100) NOT NULL

);

CREATE SEQUENCE IF NOT EXISTS project_seq;

CREATE TABLE IF NOT EXISTS project (

project_id BIGINT NOT NULL DEFAULT nextval('project_seq') PRIMARY KEY,
name VARCHAR(100) NOT NULL,
stage VARCHAR(100) NOT NULL,
description VARCHAR(500) NOT NULL

);


CREATE TABLE IF NOT EXISTS project_employee (

project_id BIGINT REFERENCES project, 
employee_id BIGINT REFERENCES employee

);

 @Entity
    public class Project {

@Id
    @GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "project_seq")

private Long projectId;
    ....
    ....
     }

@Entity
public class Employee {
@Id
    @GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "employee_seq")
    private long employeeId;
...
..
}