使用DOM4J的XMLWriter輸出UTF-8編碼的XML文件時，出現亂碼

    public static void writToXml(Document document) throws IOException
    {
        OutputFormat format=OutputFormat.createPrettyPrint();
        XMLWriter writer=new XMLWriter(new FileOutputStream(fillpath),format);
        writer.write(document);//寫入文件
        
        format
 
=OutputFormat.createPrettyPrint();
        writer=new XMLWriter(System.out,format);//輸出到屏幕
        writer.write(document);
    }

第二段代碼在輸出屏幕的時候，輸出中文是亂碼的。

修改如下後即輸出中文了：

    public static void writToXml(Document document) throws IOException
    {
        OutputFormat format=OutputFormat.createPrettyPrint();
        XMLWriter writer
 
=new XMLWriter(new FileOutputStream(fillpath),format);
        writer.write(document);
        
        format=OutputFormat.createPrettyPrint();
        format.setEncoding("gb2312");
        writer=new XMLWriter(System.out,format);
        writer.write(document);
    }

dom4j 輸出UTF-8 XML時中文亂碼