Question

在以下文件中:

<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="toc">section</string>
<string name="id">id17</string>
</resources>

我如何回馈价值:id17

我在安文档案中提出了以下目标:

  <target name="print"
    description="print the contents of the config.xml file in various ways" >

  <xmlproperty file="$config.xml" prefix="build"/>
  <echo message="name = ${build.resources.string}"/>
  </target>

我得到:

print:
        [echo] name = section,id17

是否有办法规定,我只想“id”资源?

Answer 1

我给你带来了好消息和坏消息。一个坏消息是,没有箱外解决办法。好消息是<条码>xmlproperty。由于暴露了保护的<代码>Node()方法,这项任务相当可扩展。在这方面,你可以做些什么:

1. 导言 • 制作和编辑ant.jar(在以下表格中可找到一个:,从Maven上找到):

package pl.sobczyk.piotr;

import org.apache.tools.ant.taskdefs.XmlProperty;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;

public class MyXmlProp extends XmlProperty{

@Override
public Object processNode(Node node, String prefix, Object container) {
    if(node.hasAttributes()){
        NamedNodeMap nodeAttributes = node.getAttributes();
        Node nameNode = nodeAttributes.getNamedItem("name");
        if(nameNode != null){
           String name = nameNode.getNodeValue();

           String value = node.getTextContent();
           if(!value.trim().isEmpty()){
               String propName = prefix + "[" + name + "]";
               getProject().setProperty(propName, value);
           }
       }
    }

    return super.processNode(node, prefix, container);
}

}

2. 结论现在,你只需要把这项任务看上去。简便方式:在名录中建立<条码>task的子中,有您的附本——和;拷贝汇编了MyXmlProp级,其目录结构为task。页: 1

3. Import task to your ant script, you should end up with something like:

<target name="print">
  <taskdef name="myxmlproperty" classname="pl.sobczyk.piotr.MyXmlProp">
    <classpath>
      <pathelement location="task"/>
    </classpath>
  </taskdef>
  <myxmlproperty file="config.xml" prefix="build"/>
  <echo message="name = ${build.resources.string[id]}"/>
</target>

4. 第四条第4款页: 1

What we did here is defining a special fancy square brackets syntax for your specific case :-). For some more general solution task extension may be a little more complex, but everything is possible :). Good luck.

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