2017-03-09//此方法转载人家的  个人觉得写的比较经典

package cn.itsource.pss.service;import java.io.ByteArrayInputStream;import java.io.File;import java.io.FileInputStream;import java.io.FileOutputStream;import java.io.InputStream;/** * 将二进制流转换成图片文件 *  * @author 晚风工作室 www.soservers.com * */public class ImgErToFileUtil {/** * 将接收的字符串转换成图片保存 *  * @param imgStr *            二进制流转换的字符串 * @param imgPath *            图片的保存路径 * @param imgName *            图片的名称 * @return 1：保存正常 0：保存失败 */public static int saveToImgByStr(String imgStr, String imgPath, String imgName) {try {System.out.println("===imgStr.length()====>" + imgStr.length() + "=====imgStr=====>" + imgStr);} catch (Exception e) {e.printStackTrace();}int stateInt = 1;if (imgStr != null && imgStr.length() > 0) {try {// 将字符串转换成二进制，用于显示图片// 将上面生成的图片格式字符串 imgStr，还原成图片显示byte[] imgByte = hex2byte(imgStr);System.out.println(imgByte);InputStream in = new ByteArrayInputStream(imgByte);File file = new File(imgPath, imgName);// 可以是任何图片格式.jpg,.png等FileOutputStream fos = new FileOutputStream(file);byte[] b = new byte[1024];int nRead = 0;while ((nRead = in.read(b)) != -1) {fos.write(b, 0, nRead);}fos.flush();fos.close();in.close();} catch (Exception e) {stateInt = 0;e.printStackTrace();} finally {}}return stateInt;}/** * 将二进制转换成图片保存 * 将图片转换成二进制保存 * @param imgStr *            二进制流转换的字符串 * @param imgPath *            图片的保存路径 * @param imgName *            图片的名称 * @return 1：保存正常 0：保存失败 */public static int saveToImgByBytes(File imgFile, String imgPath, String imgName) {int stateInt = 1;if (imgFile.length() > 0) {try {File file = new File(imgPath, imgName);// 可以是任何图片格式.jpg,.png等FileOutputStream fos = new FileOutputStream(file);FileInputStream fis = new FileInputStream(imgFile);byte[] b = new byte[1024];int nRead = 0;while ((nRead = fis.read(b)) != -1) {fos.write(b, 0, nRead);}fos.flush();fos.close();fis.close();} catch (Exception e) {stateInt = 0;e.printStackTrace();} finally {}}return stateInt;}/** * 二进制转字符串 *  * @param b * @return */public static String byte2hex(byte[] b) // 二进制转字符串{StringBuffer sb = new StringBuffer();String stmp = "";for (int n = 0; n < b.length; n++) {stmp = Integer.toHexString(b[n] & 0XFF);if (stmp.length() == 1) {sb.append("0" + stmp);} else {sb.append(stmp);}}return sb.toString();}/** * 字符串转二进制 *  * @param str *            要转换的字符串 * @return 转换后的二进制数组 */public static byte[] hex2byte(String str) { // 字符串转二进制if (str == null)return null;str = str.trim();int len = str.length();if (len == 0 || len % 2 == 1)return null;byte[] b = new byte[len / 2];try {for (int i = 0; i < str.length(); i += 2) {b[i / 2] = (byte) Integer.decode("0X" + str.substring(i, i + 2)).intValue();}return b;} catch (Exception e) {return null;}}}