package com.chainfin.common.utils;
import java.io.InputStream;
import java.util.Properties;
public class InterfaceUtil
{

   public static final String DEFAULT_INTERFACE_FILENAME="interfaceUrl.properties";
   private static InterfaceUtil instance = null;
   private Properties props = null ;
   private static 
 
InterfaceUtil getInstatance(String filePath){
      instance = new InterfaceUtil("/"+filePath);
      return instance;
}
   
   private InterfaceUtil(String filePath){
      loadProps(filePath);
}

   private void loadProps(String filePath) {
      props = new Properties();
InputStream in = null;
      try 
 
{
         in = getClass().getResourceAsStream(filePath);
props.load(in);
}
      catch (Exception e) {
         //此處可根據你的日誌框架進行記錄
System.err.println("Error reading conf properties in PropertyManager.loadProps() " + e);
e.printStackTrace();
}
      finally {
         try {
            in.close();
} catch 
 
(Exception e) {
            e.printStackTrace();
//此處可根據你的日誌框架進行記錄
}
      }
   }
   
   private String getProp(String key) {
      String value = props.getProperty(key);
      return value == null ? "" : value.trim();
}
   
   /**
    * 根據key獲取對應value
    * @param filePath 檔案路徑
    * @param key 
* @return
*/
public static String getValue(String filePath,String key){
      return getInstatance(filePath).getProp(key);
}
   
   /**
    * 根據key獲取對應value，如果為空則返回預設的value
    * @param key
* @param defaultValue
* @return
*/
public static String getValue(String filePath,String key,String defaultValue){
      String value = getInstatance(filePath).getProp(key);
      return "".equals(value) ? defaultValue : value;
}

   public static void main(String[] args) {
      String url = InterfaceUtil.getValue("config.properties","jdbc.url");
System.out.println("url = " + url);
}
}

用法：

比如controller：