Java 代码模板的 Eclipse 自定义变量
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Eclipse Custom Variable for Java Code Templates
提问by Paul Croarkin
How do you add a new variable to be inserted into a Java code template. How do I add a variable to the list in Window->Preferences->Java->Code Style->Code Templates->Code->New Java Files->Edit->Insert Variable... ?
如何添加要插入到 Java 代码模板中的新变量。如何在 Window->Preferences->Java->Code Style->Code Templates->Code->New Java Files->Edit->Insert Variable... 中的列表中添加变量？
Currently my new files get created with:
目前我的新文件是通过以下方式创建的：
${filecomment}
${package_declaration}
${typecomment}
${type_declaration}
I'd like them to get created with something like:
我希望它们能够通过以下方式创建：
${begin_filecomment}
${package_declaration}
${typecomment}
${type_declaration}
${end_filecomment}
where begin_filecomment and end_filecomment appear in the Insert Variable list.
其中 begin_filecomment 和 end_filecomment 出现在插入变量列表中。
采纳答案by matt b
I'm pretty sure that the list of "variables" is generated by Eclipse and there is no way to add a new template variable.
我很确定“变量”列表是由 Eclipse 生成的，并且无法添加新的模板变量。
What do you want ${begin_filecomment}and ${end_filecomment}to be? Just type the content into the Edit box - there is nothing that says you cannot put static content in there.
你想要什么${begin_filecomment}，并${end_filecomment}要？只需在编辑框中输入内容 - 没有任何内容表明您不能将静态内容放入其中。
回答by Paul Croarkin
Yes, you can indeed add a variable to this list. See the extension point called
是的，您确实可以在此列表中添加一个变量。查看名为的扩展点
org.eclipse.ui.editors.templates
org.eclipse.ui.editors.templates
and you'll find out how.
你会知道怎么做的。
回答by Rich Seller
To contribute a new variable, you need to create a plugin and implement the org.eclipse.ui.editors.templates extension-point.
要贡献一个新变量，您需要创建一个插件并实现 org.eclipse.ui.editors.templates 扩展点。
You have to contribute a sub-class of org.eclipse.jface.text.templates.TemplateVariableResolver that will implement the various resolve methods to resolve the placeholder to your desired value(s).
您必须贡献一个 org.eclipse.jface.text.templates.TemplateVariableResolver 的子类，它将实现各种解析方法以将占位符解析为您想要的值。
See herefor help on the extension point and an example that contributes the ant variables.
有关扩展点的帮助和提供 ant 变量的示例，请参见此处。
As matt b says, you often just need to define your text as boilerplate, so implementing a variable for that is overkill.
正如 matt b 所说，您通常只需要将文本定义为样板，因此为此实现一个变量是多余的。
回答by Sebastian Paul
回答by Sebastian Paul
回答by Hosam Aly
I didn't try it, but maybe you could edit the template files in the JDT jar:
我没有尝试过，但也许您可以编辑 JDT jar 中的模板文件：
eclipse\plugins\org.eclipse.jdt.ui_*.jar\templates\
回答by javaBean007
To add on to the conversation, I also wanted to insert a custom variable into a template. My issue was that I wanted to insert a variable from jsp/jstl definition inside the template.
为了添加到对话中，我还想在模板中插入一个自定义变量。我的问题是我想在模板中插入来自 jsp/jstl 定义的变量。
(I.E. <c:set var="myVariable" value="${requestScope.variableName}" />)
(IE <c:set var="myVariable" value="${requestScope.variableName}" />)
This apparently caused some issues because templates already use the ${}syntax to help resolve its own variables.
这显然引起了一些问题，因为模板已经使用${}语法来帮助解决它自己的变量。
So simple solution I included an additional $to the pattern in the template. Two $$signs resolves it to a single $sign, hence giving me exactly what I wanted. Hopefully this helps the poster or someone with similar situation.
如此简单的解决方案我$在模板中包含了一个额外的模式。两个$$符号将其解析为一个$符号，因此正是我想要的。希望这对海报或有类似情况的人有所帮助。
