The entity "nbsp" was referenced, but not declared

The entity nbsp was referenced, but not declared.问题? ????? 使用xhtmlrenderer将网页转成PDF时报Th

The entity "nbsp" was referenced, but not declared.
问题?

????? 使用xhtmlrenderer将网页转成PDF时报The entity "nbsp" was referenced, but not declared.异常;而某些页面却是正常。这个问题是页面中包含了 导致的,而这个标记在页面中使用是很正常且频繁了。

原因

????? 该问题是由于未定义HTML的DOCTYPE,致使SAX将内容按照xml默认定义进行解析,而xml中&开头表示可解析的实体,这个实体被DTD预先定义

解决

加入正确的DOCTYPE,如:<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">