1.通过spring 配置properties文件

    
      
         
           
       
        classpath:shishuocms.properties
            
           
        
     
    

2.编写自定义的类PropertyUtils  继承PropertyPlaceholderConfigurer，重写processProperties 方法

import java.util.Enumeration;import java.util.HashMap;import java.util.Map;import java.util.Properties;import org.apache.commons.lang3.StringUtils;import org.apache.log4j.Logger;import org.springframework.beans.BeansException;import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;import org.springframework.beans.factory.config.PropertyPlaceholderConfigurer;import com.shishuo.cms.exception.PropertyIsNullException;/** * 属性工具类 *  * @author Herbert *  */public class PropertyUtils extends PropertyPlaceholderConfigurer {	public static final Logger logger = Logger.getLogger(PropertyUtils.class);	private static Map
    
      propertyMap;	@Override	protected void processProperties(			ConfigurableListableBeanFactory beanFactoryToProcess,			Properties props) throws BeansException {		super.processProperties(beanFactoryToProcess, props);		propertyMap = new HashMap
     
      ();		for (Object key : props.keySet()) {			String keyStr = key.toString();			String value = props.getProperty(keyStr);			propertyMap.put(keyStr, value);		}	}	public static String getValue(String name) throws PropertyIsNullException {		String value = propertyMap.get(name);		if (StringUtils.isBlank(value)) {			String error = "属性[" + name + "]的值为空";			logger.fatal(error);			throw new PropertyIsNullException(error);		} else {			return value;		}	}	}
     
    

3.获取properties 参数值

String val = propertyConfigurer.getValue("oracle.url");