【发布时间】：2020-08-22 07:58:15
【问题描述】：
创建名为 'org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaConfiguration' 的 bean 时出错：通过构造函数参数 0 表示的依赖关系不满足；嵌套异常是 org.springframework.beans.factory.BeanCreationException：在类路径资源 [org/springframework/boot/autoconfigure/jdbc/DataSourceConfiguration$Hikari.class] 中定义名称为“dataSource”的 bean 创建时出错：通过工厂方法进行 Bean 实例化失败;嵌套异常是 org.springframework.beans.BeanInstantiationException：无法实例化 [com.zaxxer.hikari.HikariDataSource]：工厂方法 'dataSource' 抛出异常；嵌套异常是 java.lang.IllegalStateException：无法加载驱动程序类：oracle.jdbc.driver.OracleDriver
pom.xml 文件 https://maven.apache.org/xsd/maven-4.0.0.xsd"> 4.0.0
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.2.6.RELEASE</version>
</parent>
<groupId>com.Projectdashboardtool</groupId>
<artifactId>Project</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>Project</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</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-jersey</artifactId>
</dependency> -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
<!-- <dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web-services</artifactId>
</dependency> -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>com.oracle</groupId>
<artifactId>ojdbc8</artifactId>
<version>12.1.0</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
</exclusion>
</exclusions>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
控制器类
@RestController
@RequestMapping("/project")
public class ProjectController {
@Autowired
private ProjectRepository projectRepository;
@GetMapping
public List<Project> list(){
//List<Project> project=new ArrayList<>();
return projectRepository.findAll();
}
@PostMapping
@ResponseStatus(HttpStatus.OK)
public void create(@RequestBody Project project) {
projectRepository.save(project);
}
@GetMapping("/{id}")
public Project get(@PathVariable("id") long id) {
return projectRepository.getOne(id);
}
}
模型类
package com.Projectdashboardtool.Project.Model;
import java.sql.Date;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import com.fasterxml.jackson.annotation.JsonFormat;
import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
@Entity
@JsonIgnoreProperties({"hiberanateLazyInitializer", "handler"})
public class Project {
@Id
@GeneratedValue(strategy=GenerationType.AUTO)
private Long id;
private String dg_number;
private String project;
private String release_level;
private String release_area;
private String release_number;
@JsonFormat(shape=JsonFormat.Shape.STRING, pattern="dd-MM-yyyy")
private Date planned_release_date;
private Date release_date;
public String getDg_number() {
return dg_number;
}
public void setDg_number(String dg_number) {
this.dg_number = dg_number;
}
public String getProject() {
return project;
}
public void setProject(String project) {
this.project = project;
}
public String getRelease_level() {
return release_level;
}
public void setRelease_level(String release_level) {
this.release_level = release_level;
}
public String getRelease_area() {
return release_area;
}
public void setRelease_area(String release_area) {
this.release_area = release_area;
}
public String getRelease_number() {
return release_number;
}
public void setRelease_number(String release_number) {
this.release_number = release_number;
}
public Date getPlanned_release_date() {
return planned_release_date;
}
public void setPlanned_release_date(Date planned_release_date) {
this.planned_release_date = planned_release_date;
}
public Date getRelease_date() {
return release_date;
}
public void setRelease_date(Date release_date) {
this.release_date = release_date;
}
public String getRelease_type() {
return release_type;
}
public void setRelease_type(String release_type) {
this.release_type = release_type;
}
private String release_type;
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
@Override
public String toString() {
return "Project [id=" + id + ", dg_number=" + dg_number + ", project=" + project + ", release_level="
+ release_level + ", release_area=" + release_area + ", release_number=" + release_number
+ ", planned_release_date=" + planned_release_date + ", release_date=" + release_date
+ ", release_type=" + release_type + "]";
}
}
application.properties file
spring.jpa.hibernate.ddl-auto=update
spring.jpa.database-platform=org.hibernate.dialect.SQLServer2012Dialect
spring.datasource.url=jdbc:oracle:thin:@//hostname/servicename
spring.datasource.username=username
spring.datasource.password=password
spring.datasource.driver-class-name=oracle.jdbc.driver.OracleDriver
【问题讨论】：
-
能否请您显示您的数据源 bean 类
-
@GauravDhiman : 你问的是更新的数据吗？
-
请提供一些关于您的问题的附加信息。和 cmets 秀一样，你的问题还有改进的余地。
-
你创建了数据源bean吗？如果是，请分享该类，否则分享您声明的数据源属性
-
@GauravDhiman：除了这些类之外，我还有邮件类和一个存储库。我正在尝试新的应用程序。如果我错过了什么，请指导我。
标签： java spring spring-boot