例外：oracle.jdbc.driver.T4CConnection.isValid(I)Z 尝试使用 Spring Boot 访问 Oracle 时

Question

我正在尝试使用 oracle 11g xe 运行示例 spring boot jpa 应用程序。我收到错误：java.lang.AbstractMethodError: oracle.jdbc.driver.T4CConnection.isValid(I)Z。

我正在使用以下内容：
Java 8
Oracle xe 11.2.0
春天 2.4.0

下面是一些代码sn-p和细节：

POM.xml

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>2.4.0</version>
    <relativePath/> <!-- lookup parent from repository -->
</parent>

<properties>
    <java.version>1.8</java.version>
</properties>
<dependencies>
    <dependency>
        <groupId>com.oracle.database.jdbc</groupId>
        <artifactId>ojdbc8</artifactId>
    </dependency>
    <dependency>
        <groupId>org.projectlombok</groupId>
        <artifactId>lombok</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-jdbc</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-jpa</artifactId>
    </dependency>
</dependencies>

Application.properties

spring.datasource.url=jdbc:oracle:thin:@voided-pc:1521:xe
spring.datasource.username=local
spring.datasource.password=oracle
spring.datasource.driverClassName=oracle.jdbc.OracleDriver 
spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.Oracle10gDialect

主类

    @SpringBootApplication
public class OracleApplication implements CommandLineRunner{
    
    @Autowired
    private JdbcTemplate jdbc;

    public static void main(String[] args) {
        SpringApplication.run(OracleApplication.class, args);
    }

    @Override
    public void run(String... args) throws Exception {
        
        String sql = "select * from emp";
        List<Emp> res = jdbc.query(sql, BeanPropertyRowMapper.newInstance(Emp.class));
        System.out.println(res);
    }

}

DTO

@Entity
@Table(name =  "Emp")
@Getter @Setter
public class Emp implements Serializable{

    private static final long serialVersionUID = -8048548873630679159L;
    
    @Id
    @Column(name = "EMPNO", unique = true, nullable = false)
    private Long empNo;
    
    @Column(name = "ENAME")
    private String eName;
    
    @Column(name = "JOB")
    private String job;
    
    @Column(name = "MGR")
    private Long mgr;
    
    @Column(name = "HIREDATE")
    private Date hireDate;
    
    @Column(name = "SAL")
    private Double sal;
    
    @Column(name = "COMM")
    private Double comm;
    
    @Column(name = "DEPTNO")
    private Integer deptNo;
}

Oracle 详细信息

C:\Users\new>lsnrctl status

LSNRCTL for 64-bit Windows: Version 11.2.0.2.0 - Production on 29-OCT-2021 02:06:23

Copyright (c) 1991, 2014, Oracle.  All rights reserved.

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1)))
STATUS of the LISTENER
------------------------
Alias                     LISTENER
Version                   TNSLSNR for 64-bit Windows: Version 11.2.0.2.0 - Production
Start Date                28-OCT-2021 23:47:50
Uptime                    0 days 2 hr. 18 min. 33 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Default Service           XE
Listener Parameter File   C:\oraclexe\app\oracle\product\11.2.0\server\network\admin\listener.ora
Listener Log File         C:\oraclexe\app\oracle\diag\tnslsnr\voided-pc\listener\alert\log.xml
Listening Endpoints Summary...
  (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(PIPENAME=\\.\pipe\EXTPROC1ipc)))
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=voided-pc)(PORT=1521)))
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=voided-pc)(PORT=8080))(Presentation=HTTP)(Session=RAW))
Services Summary...
Service "CLRExtProc" has 1 instance(s).
  Instance "CLRExtProc", status UNKNOWN, has 1 handler(s) for this service...
Service "PLSExtProc" has 1 instance(s).
  Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
Service "XEXDB" has 1 instance(s).
  Instance "xe", status READY, has 1 handler(s) for this service...
Service "xe" has 1 instance(s).
  Instance "xe", status READY, has 1 handler(s) for this service...
The command completed successfully

我已经尝试过以下操作，但收到同样的错误：

1. Spring boot 和 ojdbc 的版本变化
2. 下载 ojdbc8 jar 并将其添加为系统路径

谁能帮忙解决一下。

Answer 1

您的类路径中一定有一些旧版本的 ojdbc jar，尝试删除所有旧版本的 jdbc jar 并升级到 ojdbc8 jar。这应该可以解决问题。