Java中如何获取spring中配置文件.properties中属性值

通过spring配置properties文件

<bean id="propertyConfigurer"
  class="com.hapishop.util.ProjectDBinfoConfigurer">
  <property name="ignoreResourceNotFound" value="true" />
  <property name="locations">
      <list>
          <value>/WEB-INF/config/dbinfo.properties</value>
      </list>
  </property>
</bean>

其中class为自己定义的类

自定义类ProjectDBinfoConfigurer

import java.util.HashMap;
import java.util.Map;
import java.util.Properties;
 
import org.springframework.beans.BeansException;
import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
import org.springframework.beans.factory.config.PropertyPlaceholderConfigurer;
 
/**
 * 自定义ProjectDBinfoConfigurer返回properties内容
 * @ClassName: ProjectDBinfoConfigurer
 * @Description: TODO (请用一句话描述该类做什么)
 * @author ZhangYQ iitshare@itblood.com
 * @date: 2012-11-20 下午11:48:32
 */
public class ProjectDBinfoConfigurer extends PropertyPlaceholderConfigurer {
    private static Map ctxPropertiesMap;
 
    @Override
    protected void processProperties(
            ConfigurableListableBeanFactory beanFactoryToProcess,
            Properties props) throws BeansException {
        super.processProperties(beanFactoryToProcess, props);
        ctxPropertiesMap = new HashMap();
        for (Object key : props.keySet()) {
            String keyStr = key.toString();
            String value = props.getProperty(keyStr);
            ctxPropertiesMap.put(keyStr, value);
        }
    }
    public static Object getContextProperty(String name) {
        return ctxPropertiesMap.get(name);
    }
}

这样就可以通过ProjectDBinfoConfigurer类来获取properties属性文件中的内容了

如何获取属性文件的内容

String url= (String) ProjectDBinfoConfigurer.getContextProperty(“jdbc.url”);

摘自 : http://blog.itblood.com/java-to-get-the-value-of-the-spring-configuration-file.html