创建数据源时出错

Question

我得到一个 spring 引导应用程序并尝试创建一个由 Java 配置定义的 DataSource bean：

@Bean(name = "dsBD") @Primary
public DataSource dsBD() {
  return DataSourceBuilder.create()
    .url("jdbc:mysql://localhost:3306/‌database?autoReconne‌ct=true")
    .username("‌root")
    .password("mysql")
    .driverClassName("com.mysql.jdbc.Drive‌r")
    .build();
}

@Bean(name = "jdbcBD") @Autowired
public JdbcTemplate jdbcBD(@Qualifier("dsBD") DataSource dsBD) {
  return new JdbcTemplate(dsBD);
}

但是在启动应用程序时，出现以下错误：

Caused by: java.lang.IllegalStateException: No supported DataSource type found
    at org.springframework.boot.autoconfigure.jdbc.DataSourceBuilder.getType(DataSourceBuilder.java:138) ~[spring-boot-autoconfigure-1.5.4.RELEASE.jar:1.5.4.RELEASE]
    at org.springframework.boot.autoconfigure.jdbc.DataSourceBuilder.build(DataSourceBuilder.java:69) ~[spring-boot-autoconfigure-1.5.4.RELEASE.jar:1.5.4.RELEASE]
    at com.package.DatabaseConfig.dsBD(DatabaseConfig.java:29) ~[classes/:na]
    at com.package.DatabaseConfig$$EnhancerBySpringCGLIB$$ac56d75a.CGLIB$dsBD[=11=](<generated>) ~[classes/:na]
    at com.package.DatabaseConfig$$EnhancerBySpringCGLIB$$ac56d75a$$FastClassBySpringCGLIB$9befb3.invoke(<generated>) ~[classes/:na]
    at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228) ~[spring-core-4.3.9.RELEASE.jar:4.3.9.RELEASE]
    at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:358) ~[spring-context-4.3.9.RELEASE.jar:4.3.9.RELEASE]
    at com.package.DatabaseConfig$$EnhancerBySpringCGLIB$$ac56d75a.dsBD(<generated>) ~[classes/:na]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_131]
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_131]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_131]
    at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_131]
    at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:162) ~[spring-beans-4.3.9.RELEASE.jar:4.3.9.RELEASE]
    ... 46 common frames omitted

Answer 1

就使用 DataSourceBuilder 而言，您需要在类路径中包含以下内容之一：

COMMONS-DBCP
TOMCAT-JDBC
HIKARICP

否则，您将得到 IllegalStateException 表示不支持的类型，就像您现在得到的那样。

创建数据源时出错

Error when create DataSource

spring-jdbc

spring-boot