code: protected String getDataSourceKey() {
  		if(JeesuiteMybatisInterceptor.isRwRouteEnabled() == false){
  			return master;
  		}
  		
  		DataSourceContextVals vals = contextVals.get();
  		if(vals == null){
  			vals = new DataSourceContextVals();
  			contextVals.set(vals);
  			return master;
  		}
  		
  		String dsKey = null;
  		
          if (vals.forceMaster || !vals.userSlave){
  			dsKey = master;
  		}else{
  			dsKey = selectSlave();
  		}
  		
  		vals.dsKey = dsKey;
  		logger.debug("current route rule is:userSlave[{}]|forceMaster[{}], use dataSource key is [{}]!",vals.userSlave,vals.forceMaster,vals.dsKey);
  		
  		return dsKey;
  	}
docs: 获取当前数据源名
  
  @return