如何使用Apache Velocity进行XML转义？ [英] How to XML escaping with Apache Velocity?

问题描述

我使用Apache Velocity生成XML。什么是最好的（最直接的）XML方式逃避输出？

（我看到有一个逃脱工具，但无法确定它的开发状态我也认为XML转义是直接可以直接支持的东西。）

解决方案

看看事件处理程序。

  eventhandler.referenceinsertion.class = org.apache.velocity.app.event.implement.EscapeXmlReference 
  

如果您只需要选择性引用（只有最近才发布最终版本的工具，但如果不是更长时间才能在2年之前，它才处于beta阶段），Escape工具也是准备就绪的。

  $ esc.xml（$ var）
  

如何初始化速度工具。

将velocity-tools.xml包含到y我们的项目并启用必要的工具：

 < tools> 
< data type =numberkey =TOOLS_VERSIONvalue =2.0/> 
< data type =booleankey =GENERIC_TOOLS_AVAILABLEvalue =true/> 
< toolbox scope =application> 
< tool class =org.apache.velocity.tools.generic.AlternatorTool/> 
< tool class =org.apache.velocity.tools.generic.DisplayTool/> 
< tool class =org.apache.velocity.tools.generic.MathTool/> 
< tool class =org.apache.velocity.tools.generic.NumberTool/> 
< tool class =org.apache.velocity.tools.generic.ComparisonDateTool/> 
< tool class =org.apache.velocity.tools.generic.ClassTool/> 
< tool class =org.apache.velocity.tools.generic.ConversionTool/> 
< tool class =org.apache.velocity.tools.generic.EscapeTool/> 
< tool class =org.apache.velocity.tools.generic.FieldTool/> 
< tool class =org.apache.velocity.tools.generic.ListTool/> 
< tool class =org.apache.velocity.tools.generic.ResourceTool/> 
< tool class =org.apache.velocity.tools.generic.SortTool/> 
< / toolbox> 
< toolbox scope =request> 
< tool class =org.apache.velocity.tools.generic.LoopTool/> 
< tool class =org.apache.velocity.tools.generic.ContextTool/> 
< tool class =org.apache.velocity.tools.generic.LinkTool/> 
< tool class =org.apache.velocity.tools.generic.RenderTool/> 
< / toolbox> 
< / tools> 
  

然后速度上下文创建过程将如下所示：

  ToolManager velocityToolManager = new ToolManager（）; 
 velocityToolManager.configure（velocity-tools.xml）; 
 VelocityContext context = new VelocityContext（velocityToolManager.createContext（））; 
  

I am generating XML using Apache Velocity. What is the best (most straight-forward) way to XML-escape the output?

(I saw there is an escape tool, but could not figure out it's dev state. I also think that XML escaping is something that is very likely supported by Velocity directly.)

解决方案

Take a look at event handlers.

eventhandler.referenceinsertion.class = org.apache.velocity.app.event.implement.EscapeXmlReference

Escape tool is a production ready as well if you need to escape only selective references (final version of tools was released just recently but it was in beta stage before that for 2 years if not longer)

$esc.xml($var)

How to init velocity tools.

Include velocity-tools.xml into your project and enable required tools:

<tools> 
    <data type="number" key="TOOLS_VERSION" value="2.0"/>
    <data type="boolean" key="GENERIC_TOOLS_AVAILABLE" value="true"/>
    <toolbox scope="application">
        <tool class="org.apache.velocity.tools.generic.AlternatorTool"/>
        <tool class="org.apache.velocity.tools.generic.DisplayTool"/>
        <tool class="org.apache.velocity.tools.generic.MathTool"/>
        <tool class="org.apache.velocity.tools.generic.NumberTool"/>
        <tool class="org.apache.velocity.tools.generic.ComparisonDateTool"/>
        <tool class="org.apache.velocity.tools.generic.ClassTool"/>
        <tool class="org.apache.velocity.tools.generic.ConversionTool"/>
        <tool class="org.apache.velocity.tools.generic.EscapeTool"/>
        <tool class="org.apache.velocity.tools.generic.FieldTool"/>
        <tool class="org.apache.velocity.tools.generic.ListTool"/>
        <tool class="org.apache.velocity.tools.generic.ResourceTool"/>
        <tool class="org.apache.velocity.tools.generic.SortTool"/>
    </toolbox>
    <toolbox scope="request">
        <tool class="org.apache.velocity.tools.generic.LoopTool"/>
        <tool class="org.apache.velocity.tools.generic.ContextTool"/>
        <tool class="org.apache.velocity.tools.generic.LinkTool"/>
        <tool class="org.apache.velocity.tools.generic.RenderTool"/>
    </toolbox>
</tools>

Then velocity context creation procedure would look like:

ToolManager velocityToolManager = new ToolManager();
velocityToolManager.configure("velocity-tools.xml");
VelocityContext context = new VelocityContext(velocityToolManager.createContext());

这篇关于如何使用Apache Velocity进行XML转义？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！