如何将异常打印到日志文件中

public static String getTrace(Throwable t) {
        StringWriter stringWriter= new StringWriter();
        PrintWriter writer= new PrintWriter(stringWriter);
        t.printStackTrace(writer);
        StringBuffer buffer= stringWriter.getBuffer();
        return buffer.toString();
    }
 
调用方法：
try(){
 
}catch(IoException e)
   e.printStackTrace();
   logger.error(getTrace(e)); //将异常输出到文件
}