code: public boolean set(long index, String newValue) {
  		try {
  			return getJedisCommands(groupName).lset(key, index, newValue).equals(RESP_OK);
  		} finally {
  			getJedisProvider(groupName).release();
  		}
  	}
docs: 设置指定位置的值
  
  @param index
  @param newValue
  @return