[英]Import Groovy Bean definition in Spring 4?
我已經使用groovy dsl定義了一些bean,並試圖像我之前在dispatcher-servlet.xml中使用bean的xml定義一樣添加它們:
<import resource="/WEB-INF/config.groovy"/>
但這不起作用。 怎么了?
我的bean定義如下:
import org.apache.commons.dbcp.BasicDataSource
beans {
dataSource(BasicDataSource) {
driverClassName = "com.mysql.jdbc.Driver"
url = "jdbc:mysql://localhost:3306/test"
username = "root"
password = "root"
}
}
通過定義我自己的BeanPostprocessor來解決它:
public class GroovyConfigImporter implements BeanDefinitionRegistryPostProcessor {
private static final Logger log = LoggerFactory.getLogger(GroovyConfigImporter.class);
private final String config;
public GroovyConfigImporter(String config) {
this.config = config;
}
@Override
public void postProcessBeanDefinitionRegistry(BeanDefinitionRegistry registry) throws BeansException {
log.info("Loading Groovy config '{}'", config);
GroovyBeanDefinitionReader reader = new GroovyBeanDefinitionReader(registry);
try {
reader.importBeans(config);
} catch (IOException e) {
throw new ApplicationContextException("Can't open Groovy config '" + config + "'");
}
}
@Override
public void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory) throws BeansException {
}
}
然后在XML中定義:
<bean class="my.package.GroovyConfigImporter">
<constructor-arg value="myConfig.groovy"/>
</bean>
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