没有为文档检测到语法约束(DTD或XML模式)

我有这个dtd: http://fast-code.sourceforge.net/template.dtd 但是当我在xml中包含时，我得到警告: 没有为文档检测到语法约束(DTD或XML模式)。 xml是:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE templates PUBLIC "//UNKNOWN/" "http://fast-code.sourceforge.net/template.dtd">

<templates>
<template type="INSTANCE_OF_CLASS">
    <description>Used to Create instance of class</description>
    <variation>asasa</variation>
    <variation-field>asasa</variation-field>
    <class-pattern>asasa</class-pattern>
    <getter-setter>setter</getter-setter>
    <allowed-file-extensions>java</allowed-file-extensions>
    <number-required-classes>1</number-required-classes>
    <allow-multiple-variation>false</allow-multiple-variation>
    <template-body>
        <![CDATA[
            // Creating new instance of ${class_name}
            final ${class_name} ${instance} = new ${class_name}();
            #foreach ($field in ${fields})
                ${instance}.${field.setter}(${field.value});
            #end
        ]]>
    </template-body>
</template>
</templates>

编辑:我改变了xml，我现在得到这个错误:

元素类型“template”的内容必须匹配“(description,variation?，variation-field?,允许 multiple-variation ?,阶级结构? getter-setter ? allowed-file-extensions吗?阈值- 类?模板体内)”。

当前回答

What I found to be the solution was something very very simple that I think you should try before tinkering with the preferences. In my case I had this problem in a strings file that had as a base tag "resources" ...all I did was delete the tag from the top and the bottom, clean the project, save the file and reinsert the tag. The problem has since disappeared and never gave me any warnings. It may sound to simple to be true but hey, sometimes it's the simplest things that solve the problems. Cheers

2014-12-10 13:51:02

其他回答

您是否尝试将模式添加到xml目录?

在eclipse中，为避免“没有为文档检测到语法约束(dtd或XML模式)”，我使用XSD模式文件添加到下的XML编目

“窗口\首选项\ xml \ xml目录\用户指定的条目”。

点击右侧的“添加”按钮。

例子:

<?xml version="1.0" encoding="UTF-8"?>
<HolidayRequest xmlns="http://mycompany.com/hr/schemas">
    <Holiday>
        <StartDate>2006-07-03</StartDate>
        <EndDate>2006-07-07</EndDate>
    </Holiday>
    <Employee>
        <Number>42</Number>
        <FirstName>Arjen</FirstName>
        <LastName>Poutsma</LastName>
    </Employee>
</HolidayRequest>

从这个xml中我生成并保存了一个xsd: /home/my_user/xsd/my_xsd.xsd

As位置:/home/my_user/xsd/my_xsd.xsd

As键类型:命名空间名称

作为键:http://mycompany.com/hr/schemas

关闭并重新打开xml文件并做一些更改来违反模式，您应该会收到通知

2012-05-31 14:09:42

对我来说，这是一个字符编码和unix文件模式在Windows上运行eclipse的问题:

只需标记完整的代码，剪切并粘贴回来(简而言之:CtrlA-CtrlX-CtrlV)，一切都很好-没有“没有语法限制…”警告

2013-11-22 18:24:53

2014-12-10 13:51:02

我在eclipse中使用web.xml文件时也遇到了同样的问题它向我展示了这个“文档中没有引用语法约束”

但可以通过添加标签来解决在XML标记之后，即<?xml version = "1.0" encoding = "UTF-8"?>