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

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。

其他回答

我真的不能说为什么会出现“No grammar constraints…”警告,但是我可以在Eclipse中通过完全删除DOCTYPE声明来引起它。当我把声明放回去并再次验证时,我得到了这个错误消息:

元素类型template的内容 必须匹配 ”(描述+、变异? variation-field ?, allow-multiple-variation ?,阶级结构?,getter-setter ?, allowed-file-extensions ?,模板体内+)。

我相信这是正确的(“number-required-classes”元素是不允许的)。

真正的解决方案:

添加一个< !DOCTYPE >到每个有问题的XML的开头,

在XML标记<?XML版本="1.0"编码="utf-8"?>

你可以为doctype写任何东西,但基本上它应该是manifest, activity等,从我的理解

这可能是由于关闭了eclipse中的验证。

一种新的干净的方法可能是这样写xml:

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

<rootElement>
 ....
</rootElement>

以上内容适用于Eclipse Juno+

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