为什么没建立PropertiesUtil这个java class啊,不是MD5里需要这个吗?
来源:6-8 获取用户详细信息功能开发及MD5加密补充
 
			qq_perseverance_5
2017-08-08
1回答
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				  无尘扫地僧 2017-08-09 public class PropertiesUtil { 
 private static Logger logger = LoggerFactory.getLogger(PropertiesUtil.class);
 private static Properties props;
 static {
 String fileName = "mmall.properties";
 props = new Properties();
 try {
 props.load(new InputStreamReader(PropertiesUtil.class.getClassLoader().getResourceAsStream(fileName),"UTF-8"));
 } catch (IOException e) {
 logger.error("配置文件读取异常",e);
 }
 }
 public static String getProperty(String key){
 String value = props.getProperty(key.trim());
 if(StringUtils.isBlank(value)){
 return null;
 }
 return value.trim();
 }
 public static String getProperty(String key,String defaultValue){
 String value = props.getProperty(key.trim());
 if(StringUtils.isBlank(value)){
 value = defaultValue;
 }
 return value.trim();
 }
 }00
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