生成临时文件

//package com.nowjava;// 来 自 N  o w  J a v a . c o m

import java.io.File;

import java.io.IOException;


public class Main {


    public static File generateTempFile(String prefix, String suffix) {

        File result = null;

        try {

            result = File.createTempFile(prefix, suffix);

        } catch (IOException e) {

            e.printStackTrace();

        }

        if (result == null) {

            int rand = (int) (Math.random() * 0xFFFFFFFF);

            result = new File(prefix +