Java打印详细的报错信息

public class ExceptionLog {
    public static String writeExcepDetailLog(Throwable e){
        String error="";
        if(e!=null){
            StringWriter trace = new StringWriter();
            e.printStackTrace(new PrintWriter(trace));
            //System.out.println("错误日志："+trace.toString());
            error=trace.toString();
        }
        return error;
    }
}