如何在 Java 中从 String 创建 XML 对象？

发布于 2024-12-07 11:55:27 字数 867 浏览 0 评论 0原文

我正在尝试编写一段代码来帮助我创建 XML 对象。例如，我将提供一个字符串作为函数的输入，它将返回一个 XMLObject。

XMLObject convertToXML(String s) {}

当我在网上搜索时，通常会看到有关创建XML文档的示例。我所看到的所有关于创建 XML、写入文件并创建文件的内容。但我做了类似的事情：

Document document = new Document();
Element child = new Element("snmp");
child.addContent(new Element("snmpType").setText("snmpget"));
child.addContent(new Element("IpAdress").setText("127.0.0.1"));
child.addContent(new Element("OID").setText("1.3.6.1.2.1.1.3.0"));
document.setContent(child);

你认为创建一个 XML 对象就足够了吗？另外你能帮我看看如何从 XML 中获取数据吗？例如，如何从该 XML 中获取 IpAdress？

非常感谢大家

编辑1：实际上现在我想也许对我来说拥有一个像base.xml这样的文件会更容易，我会写所有基本的东西例如：

<snmp>
<snmpType><snmpType>
<OID></OID>
</snmp>

然后使用此文件创建 XML 对象。你对此有何看法？

原文

I am trying to write a code that helps me to create a XML object. For example, I will give a string as input to a function and it will return me a XMLObject.

XMLObject convertToXML(String s) {}

When I was searching on the net, generally I saw examples about creating XML documents. So all the things I saw about creating an XML and write on to a file and create the file. But I have done something like that:

Document document = new Document();
Element child = new Element("snmp");
child.addContent(new Element("snmpType").setText("snmpget"));
child.addContent(new Element("IpAdress").setText("127.0.0.1"));
child.addContent(new Element("OID").setText("1.3.6.1.2.1.1.3.0"));
document.setContent(child);

Do you think it is enough to create an XML object? and also can you please help me how to get data from XML? For example, how can I get the IpAdressfrom that XML?

Thank you all a lot

EDIT 1: Actually now I thought that maybe it would be much easier for me to have a file like base.xml, I will write all basic things into that for example:

<snmp>
<snmpType><snmpType>
<OID></OID>
</snmp>

and then use this file to create a XML object. What do you think about that?

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笑咖 2024-12-14 11:55:27

如果您可以创建一个字符串 xml，您可以轻松地将其转换为 xml 文档对象，例如 -

String xmlString = "<?xml version=\"1.0\" encoding=\"utf-8\"?><a><b></b><c></c></a>";  

DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();  
DocumentBuilder builder;  
try {  
    builder = factory.newDocumentBuilder();  
    Document document = builder.parse(new InputSource(new StringReader(xmlString)));  
} catch (Exception e) {  
    e.printStackTrace();  
}

您可以使用文档对象和 xml 解析库或 xpath 来获取 IP 地址。

If you can create a string xml you can easily transform it to the xml document object e.g. -

String xmlString = "<?xml version=\"1.0\" encoding=\"utf-8\"?><a><b></b><c></c></a>";  

DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();  
DocumentBuilder builder;  
try {  
    builder = factory.newDocumentBuilder();  
    Document document = builder.parse(new InputSource(new StringReader(xmlString)));  
} catch (Exception e) {  
    e.printStackTrace();  
}

You can use the document object and xml parsing libraries or xpath to get back the ip address.

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百善笑为先 2024-12-14 11:55:27

尝试类似的东西

public static Document loadXML(String xml) throws Exception
{
   DocumentBuilderFactory fctr = DocumentBuilderFactory.newInstance();
   DocumentBuilder bldr = fctr.newDocumentBuilder();
   InputSource insrc = new InputSource(new StringReader(xml));
   return bldr.parse(insrc);
}

try something like

public static Document loadXML(String xml) throws Exception
{
   DocumentBuilderFactory fctr = DocumentBuilderFactory.newInstance();
   DocumentBuilder bldr = fctr.newDocumentBuilder();
   InputSource insrc = new InputSource(new StringReader(xml));
   return bldr.parse(insrc);
}

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