No grammar constraints (DTD or XML Schema) referenced in the document.
2016-12-18 03:12
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方法1
关闭XML验证
工具栏：windows => preferences => xml => xml files => validation => Indicate when no grammar is specified:选择Ignore即可。
方法2
添加 内容如下
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/2002/xmlspec/dtd/2.10/xmlspec.dtd">
方法3（spring配置文件会报错）
添加 内容如下
<!DOCTYPE xml>
关闭XML验证
工具栏：windows => preferences => xml => xml files => validation => Indicate when no grammar is specified:选择Ignore即可。
方法2
添加 内容如下
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/2002/xmlspec/dtd/2.10/xmlspec.dtd">
方法3（spring配置文件会报错）
添加 内容如下
<!DOCTYPE xml>
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