Question

我有一个XML转换过程，我将输出转换的XML写入文件。但不是将其存储在文件中，而是将其存储在字符串变量中。我创建了一个字符串变量，请告知我如何将生成的XML存储在字符串变量中（msgxml而不是写入文件）。

String msgxml;  

System.setProperty("javax.xml.transform.TransformerFactory",
                "org.apache.xalan.processor.TransformerFactoryImpl"); 

FileInputStream xml = new FileInputStream(xmlInput);
FileInputStream xsl = new FileInputStream(xslInput);
FileOutputStream os = new FileOutputStream(outputXmlFile);

TransformerFactory tFactory = TransformerFactory.newInstance();
// Use the TransformerFactory to process the stylesheet source and produce a Transformer 
StreamSource styleSource = new StreamSource(xsl);
Transformer transformer = tFactory.newTransformer(styleSource);


StreamSource xmlSource = new StreamSource(xml);
StreamResult result = new StreamResult(os);

//here we are storing it in a file , 
try {
    transformer.transform(xmlSource, result);
} catch (TransformerException e) {
    e.printStackTrace();
}

Answer 1

一种方法是使用ByteArrayOutputStream代替FileOutputStream：

ByteArrayOutputStream baos = new ByteArrayOutputStream();
TransformerFactory tFactory = TransformerFactory.newInstance();

...

StreamSource xmlSource = new StreamSource(xml);
StreamResult result = new StreamResult(baos);  // write to the byte array stream

//here we are storing it in a file , 
try {
    transformer.transform(xmlSource, result);
}
...

msgxml = baos.toString("UTF-8");  // get contents of stream using UTF-8 encoding

另一种解决方案是使用java.io.StringWriter：

StringWriter stringWriter = new StringWriter();
StreamResult result = new StreamResult(stringWriter);

...

msgxml = stringWriter.toString();

将内容存储在String变量而不是文件中

1 个答案: