如何从 Java 中的 stringbuilder 对象创建一个 utf8 文件
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How to create an utf8 file from stringbuilder object in Java
提问by Alberto
I have a problem with file encoding. I have a method which exports my DB to a XML in a format I created. The problem is that the file is created with ANSI encodingand I need UTF-8 encoding(some spanish characters aren't shown propperly on ANSI).
我有文件编码问题。我有一种方法可以将我的数据库以我创建的格式导出到 XML。问题是该文件是用ANSI 编码创建的，我需要UTF-8 编码（某些西班牙语字符在 ANSI 上没有正确显示）。
The XML file is generated from a StringBuilderobject: I write the data from my DB to this StringBuilder object and when I have copied all the data I create the file.
XML 文件是从StringBuilder对象生成的：我将数据从我的数据库写入这个 StringBuilder 对象，当我复制了所有数据时，我创建了该文件。
Any help is gratefully received. Thanks in advace.
非常感谢任何帮助。预先感谢。
Edit: This is part of my source: XMLBuilder class:
编辑：这是我的来源的一部分： XMLBuilder 类：
...
public XmlBuilder() throws IOException {
this.sb = new StringBuilder();
}
...
public String xmlBuild() throws IOException{
this.sb.append(CLOSE_DB);
return this.sb.toString();
}
...
Service class where I generate the XML file:
我在其中生成 XML 文件的服务类：
XmlBuilder xml = new XmlBuilder();
... (adding to xml)...
xmlString = xml.build();
file = createXml(xmlString);
...
createXml:
创建XML：
public File createXml(String textToFile) {
File folder = new File("xml/exported/");
if (!folder.exists()) {
folder.mkdirs();
}
file = new File("xml/exported/exportedData.xml");
try (FileOutputStream fop = new FileOutputStream(file)) {
// if file doesn't exists, then create it
if (!file.exists()) {
file.createNewFile();
}
//if file exists, then delete it and create it
else {
file.delete();
file.createNewFile();
}
// get the content in bytes
byte[] contentInBytes = textToFile.getBytes();
fop.write(contentInBytes);
fop.flush();
fop.close();
System.out.println("Done");
} catch (IOException e) {
e.printStackTrace();
}
return file;
}
采纳答案by Keith
File file = new File("file.xml");
Writer writer = new OutputStreamWriter(new FileOutputStream(file), "UTF-8");
writer.write("<file content>");
writer.close();
