我已经引用了URL：https://o7planning.org/en/11727/understanding-spring-cloud-config-client-with-example 没有任何自定义，但试图简单地运行面临以下错误的代码。谁能指导我有什么问题？
Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2018-04-08 23:45:00.960 ERROR 5476 --- [ main] o.s.b.d.LoggingFailureAnalysisReporter :
***************************
APPLICATION FAILED TO START
***************************
Description:
Field dataSource in org.o7planning.aboutcompany.MainController required a bean of type 'javax.sql.DataSource' that could not be found.
- Bean method 'dataSource' not loaded because @ConditionalOnProperty (spring.datasource.jndi-name) did not find property 'jndi-name'
- Bean method 'dataSource' not loaded because @ConditionalOnClass did not find required class 'javax.transaction.TransactionManager'
Action:
Consider revisiting the conditions above or defining a bean of type 'javax.sql.DataSource' in your configuration.
这是供参考的代码bootstrap.properties
spring.application.name=app-about-company
spring.cloud.config.uri=http://localhost:8888
management.security.enabled=false
应用程序属性
server.port=7777
主控制器
@RefreshScope
@RestController
public class MainController {
@Value("${text.copyright: Default Copyright}")
private String copyright;
@Value("${spring.datasource.driver-class-name}")
private String driverClassName;
@Value("${spring.datasource.url}")
private String url;
@Value("${spring.datasource.username}")
private String userName;
@Value("${spring.datasource.password}")
private String password;
@Autowired
private DataSource dataSource;
@RequestMapping("/showConfig")
@ResponseBody
public String showConfig() {
String configInfo = "Copy Right: " + copyright //
+ "<br/>spring.datasource.driver-class-name=" + driverClassName //
+ "<br/>spring.datasource.url=" + url //
+ "<br/>spring.datasource.username=" + userName //
+ "<br/>spring.datasource.password=" + password;
return configInfo;
}
@RequestMapping("/pingDataSource")
@ResponseBody
public String pingDataSource() {
try {
return this.dataSource.toString();
} catch (Exception e) {
e.printStackTrace();
return "Error: " + e.getMessage();
}
}
}
绒球.xml
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.1.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>
<spring-cloud.version>Finchley.BUILD-SNAPSHOT</spring-cloud.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-config</artifactId>
</dependency>
<dependency>
<groupId>com.microsoft.sqlserver</groupId>
<artifactId>mssql-jdbc</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.postgresql</groupId>
<artifactId>postgresql</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>${spring-cloud.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
<repositories>
<repository>
<id>spring-snapshots</id>
<name>Spring Snapshots</name>
<url>https://repo.spring.io/snapshot</url>
<snapshots>
<enabled>true</enabled>
</snapshots>
</repository>
<repository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/milestone</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
</repositories>
你缺少一个DataSource豆。根据错误消息，此 Bean 的自动注册失败：
- Bean method 'dataSource' not loaded because @ConditionalOnProperty (spring.datasource.jndi-name) did not find property 'jndi-name'
- Bean method 'dataSource' not loaded because @ConditionalOnClass did not find required class 'javax.transaction.TransactionManager'
基于上述内容，您很可能需要包含javax.transaction:javax.transaction-api:1.2依赖项才能提供javax.transaction.TransactionManager类。 根据代码读取spring.datasource.*连接属性，您没有使用 JNDI。
您可以通过运行mvn dependency:tree来检查您是否已经具有此依赖项。很难说你已经有什么依赖关系，因为你没有提供完整的pom.xml。