我是xsl的新手。我在为每个循环而苦苦挣扎。我在input.xml下面，并且需要预期的output.xml。但我在中得到了所有后续结果。
input.xml
<?xml version="1.0" encoding="utf-8" ?>
<FOLDER-HIERARCHY>
<OBJECT>
<FOLDER-REF>_f9a2c991-0b91-40cb-a58c-ff1bdbd12d5b</FOLDER-REF>
</OBJECT>
<CHILDREN>
<FOLDER-HIERARCHY>
<OBJECT>
<FOLDER-REF>_ac767e78-1221-475f-a9f7-e31873fcaecc</FOLDER-REF>
</OBJECT>
<CHILDREN>
<OBJECT>
<SPEC-OBJECT-REF>_42d23e8b-3b0b-4753-93c3-61651a8a361b</SPEC-OBJECT-REF>
</OBJECT>
<FOLDER-HIERARCHY>
<OBJECT>
<FOLDER-REF>_FOLDER_1</FOLDER-REF>
</OBJECT>
<CHILDREN>
<OBJECT>
<SPEC-OBJECT-REF>_b7341e02-8bc4-4e7d-8099-6c5791c6008a</SPEC-OBJECT-REF>
</OBJECT>
<OBJECT>
<SPEC-OBJECT-REF>_0762a8b6-05ec-4c1e-a0f8-dd5801daa647</SPEC-OBJECT-REF>
</OBJECT>
<OBJECT>
<SPEC-OBJECT-REF>_55973a3d-a08e-40e1-bfa9-c709e3d68c71</SPEC-OBJECT-REF>
</OBJECT>
<OBJECT>
<SPEC-OBJECT-REF>_25346101-eecb-4966-b915-070d96721a1e</SPEC-OBJECT-REF>
</OBJECT>
<OBJECT>
<SPEC-OBJECT-REF>_6b4fbabe-85e6-489c-9e01-99a4db9cdbb7</SPEC-OBJECT-REF>
</OBJECT>
<OBJECT>
<SPEC-OBJECT-REF>_206c7a4b-e5d0-440d-8b88-21cb895fef82</SPEC-OBJECT-REF>
</OBJECT>
<OBJECT>
<SPEC-OBJECT-REF>_1082798f-3850-482d-a976-5824d962d7fc</SPEC-OBJECT-REF>
</OBJECT>
<OBJECT>
<SPEC-OBJECT-REF>_6e8ba622-8e53-458f-9ea6-735d866ecb6c</SPEC-OBJECT-REF>
</OBJECT>
<OBJECT>
<SPEC-OBJECT-REF>_9db12317-37ff-48c2-92c6-ade9fb18ab66</SPEC-OBJECT-REF>
</OBJECT>
<OBJECT>
<SPEC-OBJECT-REF>_8736d564-1577-4ded-8dea-a36fd2807429</SPEC-OBJECT-REF>
</OBJECT>
<OBJECT>
<SPEC-OBJECT-REF>_161bd8c7-f87a-49e9-bf95-fded2da04ccf</SPEC-OBJECT-REF>
</OBJECT>
<OBJECT>
<SPEC-OBJECT-REF>_5ae77274-b35b-4265-ad57-d65779e7dac6</SPEC-OBJECT-REF>
</OBJECT>
<OBJECT>
<SPEC-OBJECT-REF>_af78d1b5-2ff9-4076-baf3-75e4e5de7360</SPEC-OBJECT-REF>
</OBJECT>
<OBJECT>
<SPEC-OBJECT-REF>_60cb1be5-eaa5-403b-911b-1e39d8b65d68</SPEC-OBJECT-REF>
</OBJECT>
<OBJECT>
<SPEC-OBJECT-REF>_6f489ff2-fd20-48da-aeb2-e67d4f8d9797</SPEC-OBJECT-REF>
</OBJECT>
<OBJECT>
<SPEC-OBJECT-REF>_f239c20b-a7f7-4645-bc77-c4b27b11108e</SPEC-OBJECT-REF>
</OBJECT>
</CHILDREN>
</FOLDER-HIERARCHY>
<FOLDER-HIERARCHY>
<OBJECT>
<FOLDER-REF>_FOLDER_2</FOLDER-REF>
</OBJECT>
<CHILDREN>
<OBJECT>
<SPEC-OBJECT-REF>_10839c74-faf2-4add-96b1-65db4f90a851</SPEC-OBJECT-REF>
</OBJECT>
<OBJECT>
<SPEC-OBJECT-REF>_00bdbcff-8fba-4811-9d77-24461c0bd447</SPEC-OBJECT-REF>
</OBJECT>
<OBJECT>
<SPEC-OBJECT-REF>_e0500607-393d-4e9b-8e11-8864f81fbeb2</SPEC-OBJECT-REF>
</OBJECT>
<OBJECT>
<SPEC-OBJECT-REF>_77d7b866-68bf-41b9-b30e-d6e74db2a940</SPEC-OBJECT-REF>
</OBJECT>
<OBJECT>
<SPEC-OBJECT-REF>_52a278ad-8088-4caa-bb43-09f90393063c</SPEC-OBJECT-REF>
</OBJECT>
<OBJECT>
<SPEC-OBJECT-REF>_48792dd6-80e4-451b-9c0a-45d56beb1270</SPEC-OBJECT-REF>
</OBJECT>
<OBJECT>
<SPEC-OBJECT-REF>_4cfb2c9b-43cc-4dea-85d4-19f50adfbf54</SPEC-OBJECT-REF>
</OBJECT>
<OBJECT>
<SPEC-OBJECT-REF>_1eb413b1-68ce-4e73-8571-046f63e6e586</SPEC-OBJECT-REF>
</OBJECT>
</CHILDREN>
</FOLDER-HIERARCHY>
</CHILDREN>
</FOLDER-HIERARCHY>
</CHILDREN>
</FOLDER-HIERARCHY>
output.xml是：
<Folder>
<ul>_b7341e02-8bc4-4e7d-8099-6c5791c6008a</ul>
<ul>_0762a8b6-05ec-4c1e-a0f8-dd5801daa647</ul>
<ul>_55973a3d-a08e-40e1-bfa9-c709e3d68c71</ul>
<ul>_25346101-eecb-4966-b915-070d96721a1e</ul>
<ul>_6b4fbabe-85e6-489c-9e01-99a4db9cdbb7</ul>
<ul>_206c7a4b-e5d0-440d-8b88-21cb895fef82</ul>
<ul>_1082798f-3850-482d-a976-5824d962d7fc</ul>
<ul>_6e8ba622-8e53-458f-9ea6-735d866ecb6c</ul>
<ul>_9db12317-37ff-48c2-92c6-ade9fb18ab66</ul>
<ul>_8736d564-1577-4ded-8dea-a36fd2807429</ul>
<ul>_161bd8c7-f87a-49e9-bf95-fded2da04ccf</ul>
<ul>_5ae77274-b35b-4265-ad57-d65779e7dac6</ul>
<ul>_af78d1b5-2ff9-4076-baf3-75e4e5de7360</ul>
<ul>_60cb1be5-eaa5-403b-911b-1e39d8b65d68</ul>
<ul>_6f489ff2-fd20-48da-aeb2-e67d4f8d9797</ul>
<ul>_f239c20b-a7f7-4645-bc77-c4b27b11108e</ul>
</Folder>
<Folder>
<ul>_10839c74-faf2-4add-96b1-65db4f90a851</ul>
<ul>_00bdbcff-8fba-4811-9d77-24461c0bd447</ul>
<ul>_e0500607-393d-4e9b-8e11-8864f81fbeb2</ul>
<ul>_77d7b866-68bf-41b9-b30e-d6e74db2a940</ul>
<ul>_52a278ad-8088-4caa-bb43-09f90393063c</ul>
<ul>_48792dd6-80e4-451b-9c0a-45d56beb1270</ul>
<ul>_4cfb2c9b-43cc-4dea-85d4-19f50adfbf54</ul>
<ul>_1eb413b1-68ce-4e73-8571-046f63e6e586</ul>
</Folder>
您可以看到，我想根据_FOLDER_1和_FOLDER_2将其分为两组。 当我使用下面的xsl代码进行迭代时，会得到所有结果，并且不会根据_FOLDER_1和_FOLDER_2进行区分。
xsl：
<xsl:template match="/">
<Folder>
<xsl:for-each select="FOLDER-HIERARCHY/CHILDREN/FOLDER-HIERARCHY/CHILDREN/FOLDER-HIERARCHY/CHILDREN/OBJECT/SPEC-OBJECT-REF">
<xsl:variable name="specObjectRef" select="."/>
<ul><xsl:value-of select="$specObjectRef"/></ul>
</xsl:for-each>
</Folder>
</xsl:template>
如果我使用2 for循环，FOLDER的外部循环和子元素的inner循环，可以得到理想的结果。但是由于某些原因，我无法使用该方法，因为我需要在另一个外部循环中使用此数据。 请帮忙。提前致谢。
答案 0 :(得分：1)
您只需要将xsl:for-each分成两部分并嵌套即可。外部的将选择主FOLDER-HIERARCHY，然后为每个Folder创建一个SPEC-OBJECT-REF。然后，在其中，您可以选择<xsl:template match="/">
<xsl:for-each select="FOLDER-HIERARCHY/CHILDREN/FOLDER-HIERARCHY/CHILDREN/FOLDER-HIERARCHY">
<Folder>
<xsl:for-each select="CHILDREN/OBJECT/SPEC-OBJECT-REF">
<ul><xsl:value-of select="."/></ul>
</xsl:for-each>
</Folder>
</xsl:for-each>
</xsl:template>
尝试此模板：
public List<String> findUrls(String url) {
List<String> urls = null;
InputStream response = null;
try {
response = new URL(url).openStream();
System.err.println("opened stream");
@SuppressWarnings("resource")
Scanner scanner = new Scanner(response);
String responseBody = scanner.useDelimiter("\\A").next();
urls = getUrls(responseBody);
} catch (IOException ex) {
ex.printStackTrace();
System.err.println("Error finding articles");
} finally {
try {
response.close();
} catch (Exception ex) {
ex.printStackTrace();
}
}
return urls;
}
@Scheduled(fixedDelay = 86400000)
public void autoUpload() {
System.out.println("Method executed at every 24 hours. Current time is :: " + new Date());
List<String> urls = findUrls(
"https://www.google.com/search?q=site:foxnews.com&tbas=0&tbs=qdr:d&tbm=nws&tbas=0&source=lnt&sa=X&ved=0ahUKEwiY6On-1L3eAhUBQhoKHb2rBfIQpwUIHw&biw=1540&bih=832&dpr=1.09");
createArticles(urls);
}