问 Spring boot 2 IllegalArgumentException:属性“”driverClassName“”不能为空

EN

我正尝试在spring boot 2应用程序中建立2个数据库连接。我得到了下面的错误：

java.lang.IllegalArgumentException: Property 'driverClassName' must not be empty

这是我在主数据库上的配置

@Configuration
@EnableTransactionManagement
@EnableJpaRepositories(
    entityManagerFactoryRef = "myEntityManagerFactory",
    basePackages = {"com.cmp.myapp.repository"})
 public class PrimDBConfig {
@Primary
@Bean(name = "primaryDataSource")
@ConfigurationProperties(prefix = "spring.datasource")
public DataSource dataSource() {
    return DataSourceBuilder.create().build();
@PersistenceContext(unitName = "primdb")
@Primary
@Bean(name = "entityManagerFactory")
public LocalContainerEntityManagerFactoryBean entityManagerFactory(
        EntityManagerFactoryBuilder builder,
        @Qualifier("primaryDataSource") DataSource dataSource) {
    return builder
            .dataSource(dataSource)
            .packages("com.cmp.myapp.dto")
            .persistenceUnit("primdb")
            .build();
@Primary
@Bean(name = "transactionManager")
public PlatformTransactionManager transactionManager(
        @Qualifier("myEntityManagerFactory") EntityManagerFactory entityManagerFactory) {
    return new JpaTransactionManager(entityManagerFactory);
}

下面是辅助数据库连接

@Configuration
public class SecDBConfig {
@Autowired
Environment env;
@Bean(name = "secDataSource")
@ConfigurationProperties(prefix = "secondary.datasource")
public DataSource wiseDataSource() {
    DriverManagerDataSource ds = new DriverManagerDataSource();
    ds.setUrl(env.getProperty("secondary.datasource.jdbc-url"));
    ds.setDriverClassName(env.getProperty("secondary.datasource.driverClassName"));
    ds.setUsername(env.getProperty("secondary.datasource.username"));
    ds.setPassword(env.getProperty("secondary.datasource.password"));
    return ds;
}

我的application.properties文件如下：

spring.datasource.jdbc-url=jdbc:sqlserver://xxx
spring.datasource.driverClassName=com.microsoft.sqlserver.jdbc.SQLServerDriver
spring.datasource.username=xxxx
spring.datasource.password=xxxx
spring.datasource.validation-query=select 1
spring.datasource.testOnBorrow=true