code: public static URI toURI(String location) throws UtilException {
  		try {
  			return new URI(location.replace(" ", "%20"));
  		} catch (URISyntaxException e) {
  			throw new UtilException(e);
  		}
  	}
docs: 转字符串为URI
  
  @param location 字符串路径
  @return URI
  @exception UtilException 包装URISyntaxException