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

我在xsi:noNamespaceSchemaLocation中使用了相对路径来提供本地xsd文件(因为我不能在实例xml中使用名称空间)。

<?xml version="1.0" encoding="UTF-8"?>
<root xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:noNamespaceSchemaLocation="../project/schema.xsd">
</root>

验证有效，警告被修复(没有被忽略)。

https://www.w3schools.com/xml/schema_example.asp

2018-01-26 14:49:24

其他回答

添加DOCTYPE标签…

在这种情况下:

<!DOCTYPE xml>

添加后:

<?xml version="1.0" encoding="UTF-8"?>

So:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE xml>

2017-07-14 09:00:06

这可能是由于关闭了eclipse中的验证。

2010-12-31 04:35:51

在记事本中复制您的整个代码。临时以任何名称保存文件[在保存文件时使用"encoding" = UTF-8(或更高，但UTF)]。关闭文件。再打开一遍。复制粘贴到代码中。

错误必须消失。

2016-01-15 14:26:51

我知道这是旧的，但我通过同样的问题，并在春季文档中找到了解决方案，以下xml配置已经为我解决了这个问题。

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc" 
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/mvc 
http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd
http://www.springframework.org/schema/tx 

<!-- THIS IS THE LINE THAT SOLVE MY PROBLEM -->
http://www.springframework.org/schema/tx/spring-tx-3.0.xsd 

http://www.springframework.org/schema/beans 
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context 
http://www.springframework.org/schema/context/spring-context-3.0.xsd">

在我把上面的行建议在这个论坛的主题，我有同样的警告信息，并把这个…

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE xml>

它给了我以下警告信息…

The content of element type "template" must match "
(description,variation?,variation-field?,allow- multiple-variation?,class-
pattern?,getter-setter?,allowed-file-extensions?,number-required- 
classes?,template-body)".

因此，请尝试使用我的XML配置中的建议行。

2017-07-26 18:55:28

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

没有为文档检测到语法约束(DTD或XML模式)

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