Java 如何更改 JAXB Marshaller 行分隔符？
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How to change JAXB Marshaller line separator?
提问by user2601995
What property is used to change the Marshaller (javax.xml.bind.Marshaller) line separator (carriage return, new line, line break)?
什么属性用于更改 Marshaller ( javax.xml.bind.Marshaller) 行分隔符（回车、换行、换行）？
I believe the marshaller is using the systems's line separator.
我相信编组员正在使用系统的行分隔符。
System.getProperty("line.separator")
However a different escape sequence is needed (i.e. \r\nneeds to be changed to \nor vice versa).
然而，需要不同的转义序列（即\r\n需要更改为\n，反之亦然）。
marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
marshaller.setProperty("line.separator", "\r\n");
采纳答案by Paul Vargas
There is no a property that you can customize. Most implementationssend directly to the buffer the line separator:
没有可以自定义的属性。大多数实现将行分隔符直接发送到缓冲区：
write('\n');
However, you can replace the result.
但是，您可以替换结果。
Marshaller marshaller = ctx.createMarshaller();
marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
marshaller.setProperty(Marshaller.JAXB_ENCODING, "UTF-8");
StringWriter writer = new StringWriter(1024); // 2 KB
marshaller.marshal(obj, writer);
String str = writer.toString();
str = str.replaceAll("\r?\n", "\r\n"); // only convert if necessary
To avoid any effect on the performance, you must set the approximate size (e.g. 1024 -> 2 KB) in the constructor for java.io.StringWriter.
为避免对性能产生任何影响，您必须1024 -> 2 KB在构造函数中为设置近似大小（例如）java.io.StringWriter。
