尝试连接到mariDB数据库时,我总是遇到以下异常,我无法弄清楚如何正确定义dataSource。
No bean could be found in the registry for: myDataSource of type: javax.sql.DataSource
我的代码非常简单,如下所示:
protected RouteBuilder createRouteBuilder() {
return new RouteBuilder() {
@Override
public void configure() throws Exception {
String url = "jdbc:mariadb://localhost:3306/testDB";
BasicDataSource ds = new BasicDataSource();
ds.setUsername("user");
ds.setDriverClassName("com.mysql.jdbc.Driver");
ds.setPassword("password");
ds.setUrl(url);
SimpleRegistry registry = new SimpleRegistry();
registry.put("myDataSource", ds);
CamelContext context = new DefaultCamelContext(registry);
this.setContext(context);
//poll the mySQL Database every x minutes.
from("timer://Timer?period=6000")
.to("sql:select * from testDB?dataSource=myDataSource");
}
};
}
我已经尝试过定义dataSource的Blueprint版本,但是无法运行它。
这是否以正确的方式设置? 我可能错过了一个依赖项,或者我指定了错误的驱动程序?
答案 0 :(得分:1)
在查看示例后,我发现了如何解决我的问题。
在CamelTestSupport的JDSL中,使用createCamelContext方法注册上下文,并将dataSource添加到上下文中。
public class IntegrationTest extends CamelTestSupport{
@Override
public CamelContext createCamelContext() {
String url = "jdbc:mysql://localhost:3306/";
DataSource dataSource = setupDataSource(url);
SimpleRegistry registry = new SimpleRegistry();
registry.put("myDataSource", dataSource);
CamelContext context = new DefaultCamelContext(registry);
return context;
}
private static DataSource setupDataSource(String connectURI) {
BasicDataSource ds = new BasicDataSource();
ds.setUsername("username");
ds.setPassword("password");
ds.setDriverClassName("com.mysql.cj.jdbc.Driver");
ds.setUrl(connectURI);
return ds;
}
protected RouteBuilder createRouteBuilder() {
return new RouteBuilder() {
@Override
public void configure() throws Exception {
from("timer://Timer?period=6000")
.to("sql:select * from testdb.testTable
+ " ?dataSource=myDataSource" )
.to("mock:result");
}
};
}
在蓝图文件中,需要设置/配置bean,然后由SQL组件以下列方式引用:
<bean id="dataSource" class="org.apache.commons.dbcp2.BasicDataSource" destroy-method="close">
<property name="driverClassName" value="com.mysql.cj.jdbc.Driver"/>
<property name="url" value="http:localhost:3306"/>
<property name="username" value="username"/>
<property name="password" value="password"/>
</bean>
<bean id="sql" class="org.apache.camel.component.sql.SqlComponent">
<property name="dataSource" ref="dataSource"/>
</bean>