package com.buy.tools;
import java.io.*;
public class FileTools {
/**
* 检查目录是否存在
* @param path 由Jsp页面传来的application.getRealPath("")再连接相对路径
* @param foldername 要检查的目录名
* */
public boolean haveFolder(String path, String foldername){
try{
File d=new File(path+"\\"+foldername);//建立代表foldername目录的File对象，并得到它的一个引用
if(d.exists()){//检查foldername目录是否存在
//存在
return true;
}else{
//不存在
return false;
}
}catch(Exception e){
System.err.println("com.buy.tools.FileTools.haveFolder() error: "+e.getMessage());
return false;
}
}
/**
* 建立目录
* @param path 由Jsp页面传来的application.getRealPath("")再连接相对路径
* @param foldername 要检查的目录名
* */
public void createFolder(String path, String foldername){
try{
File f=new File(path+"\\"+foldername);//建立代表foldername目录的File对象，并得到它的一个引用
if(!f.exists()){//检查foldername目录是否存在
f.mkdir();//建立foldername目录
}
}catch(Exception e){
System.err.println("com.buy.tools.FileTools.createFolder() error: "+e.getMessage());
}
}
/**
* 删除目录（未确认目录为空）
* @param path 由Jsp页面传来的application.getRealPath("")再连接相对路径
* @param foldername 要检查的目录名
* */
public void deleteFolder(String path, String foldername){
try{
File f=new File(path,foldername);
if(f.exists()){
String fileList[] = getList(path+"\\"+foldername, "file");
String folderList[] = getList(path+"\\"+foldername, "folder");
if(fileList!=null){
for(int i=0;i<fileList.length;i++){
deleteFile(path+"\\"+foldername, fileList[i]);
}
}
if(folderList!=null){
for(int i=0;i<folderList.length;i++){
deleteFolder(path+"\\"+foldername, folderList[i]);
}
}
fileList = null;
folderList = null;
f.delete();
}
}catch(Exception e){
System.err.println("com.buy.tools.FileTools.deleteFolder() error: "+e.getMessage());
}
}
/**
* 检查文件是否存在
* @param path 由Jsp页面传来的application.getRealPath("")再连接相对路径
* @param filename 要检查的文件名
* */
public boolean haveFile(String path, String filename){
try{
File f=new File(path,filename);
if(f.exists()){//检查File.txt是否存在
//存在
return true;
}else{
//不存在
return false;
}
}catch(Exception e){
System.err.println("com.buy.tools.FileTools.haveFile() error: "+e.getMessage());
return false;
}
}
/**
* 建立纯文本文件
* @param path 由Jsp页面传来的application.getRealPath("")再连接相对路径
* @param filename 要建立的文件名（带扩展名）
* */
public void createFile(String path, String filename){
try{
File f=new File(path,filename);
if(!f.exists()){
f.createNewFile();//在当前目录下建立一个名为filename的文件
}
}catch(Exception e){
System.err.println("com.buy.tools.FileTools.createFile() error: "+e.getMessage());
}
}
/**
* 删除文件
* @param path 由Jsp页面传来的application.getRealPath("")再连接相对路径
* @param filename 要删除的文件名（带扩展名）
* */
public void deleteFile(String path, String filename){
try{
File f=new File(path,filename);
if(f.exists()){
f.delete();
}
}catch(Exception e){
System.err.println("com.buy.tools.FileTools.deleteFile() error: "+e.getMessage());
}
}
/**
* 取出目录中的目录/文件
* @param path 由Jsp页面传来的application.getRealPath("")再连接相对路径
* @param type 类型 有二取值："file"、"folder"
* */
public String[] getList(String path, String type){
try{
File d=new File(path);//建立当前目录中文件的File对象
File list[]=d.listFiles();//取得代表目录中所有文件的File对象数组
int j=0;
for(int i=0;i<list.length;i++){
if(type.equals("file")){
if(list[i].isFile()){
j++;
}
}else{
if(list[i].isDirectory()){
j++;
}
}
}
if(j!=0){
String returnValue[] = new String[j];
for(j=0;j<list.length;j++){
if(type.equals("file")){
if(list[j].isFile()){
returnValue[j] = list[j].getName();
}
}else{
if(list[j].isDirectory()){
returnValue[j] = list[j].getName();
}
}
}
return returnValue;
}else{
return null;
}
}catch(Exception e){
System.err.println("com.buy.tools.FileTools.getList() error: "+e.getMessage());
return null;
}
}
/**
* 判断是否为空白文件
* @param path 由Jsp页面传来的application.getRealPath("")再连接相对路径
* @param filename 要检查的文件名（带扩展名）
* @return true：有数据 false：没有数据
* */
public boolean fileIsNull(String path, String filename) throws FileNotFoundException {
FileReader fr=new FileReader(path + "\\"+filename);//建立FileReader对象，并实例化为fr//对FileReader类生成的对象使用read()方法，可以从字符流中读取下一个字符。
try{
if(fr.read()==-1){//判断是否已读到文件的结尾
//没有数据
return false;
}else{
//有数据
return true;
}
}catch(Exception e){
System.err.println("com.buy.tools.FileTools.fileIsNull() error: fileIsNull"+e.getMessage());
return false;
}finally{
try{
fr.close();
}catch(IOException ioe){
System.err.println("com.buy.tools.FileTools.fileIsNull() IOE: fileIsNull"+ioe.getMessage());
}
}
}
/**
* 读取所有数据
* @param path 由Jsp页面传来的application.getRealPath("")再连接相对路径
* @param filename 文件名（带扩展名）
* */
public String readFileAllText(String path, String filename) throws FileNotFoundException{
FileReader fr=new FileReader(path+"\\"+filename);
try{
int c=fr.read();//从文件中读取一个字符
//判断是否已读到文件结尾
StringBuffer sb = new StringBuffer("");
while(c!=-1){
sb.append((char)c);//输出读到的数据
c=fr.read();//从文件中继续读取数据
if(c==13){//判断是否为断行字符
sb.append("\n");//输出分行标签
fr.skip(1);//略过这个字符
//c=fr.read();//读取一个字符
}
}
fr.close();
return sb.toString();
}catch(Exception e){
System.err.println("com.buy.tools.FileTools.readFileAllText() error: "+e.getMessage());
return null;
}finally{
try{
fr.close();
}catch(IOException ioe){
System.err.println("com.buy.tools.FileTools.readFileAllText() IOE: fileIsNull"+ioe.getMessage());
}
}
}
/**
* 将数据追加写入到文件
* @param path 由Jsp页面传来的application.getRealPath("")再连接相对路径
* @param filename 文件名（带扩展名）
* @param str 要写入的字符串
* */
public void appendToFile(String path, String filename, String str) throws FileNotFoundException {
RandomAccessFile rf=new RandomAccessFile(path + "\\"+filename,"rw");//定义一个类RandomAccessFile的对象，并实例化
try{
rf.seek(rf.length());//将指针移动到文件末尾
rf.writeBytes(str);
}catch(Exception e){
System.err.println("com.buy.tools.FileTools.appendToFile() error: "+e.getMessage());
}finally{
try{
rf.close();
}catch(IOException ioe){
System.err.println("com.buy.tools.FileTools.appendToFile() IOE: fileIsNull"+ioe.getMessage());
}
}
}
/**
* 将数据覆盖式写入到文件
* @param path 由Jsp页面传来的application.getRealPath("")再连接相对路径
* @param filename 文件名（带扩展名）
* @param str 要写入的字符串
* */
public void writeToFile(String path, String filename, String str) throws FileNotFoundException {
try{
FileWriter fw=new FileWriter(path + "\\" + filename);//建立FileWriter对象，并实例化fw
fw.write(str);
fw.close();
}catch(Exception e){
System.err.println("com.buy.tools.FileTools.writeToFile() error: "+e.getMessage());
}
}
}
代码:
package com.buy.tools;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStream;
import java.util.HashSet;
import java.util.Properties;
import java.util.Set;
import java.util.StringTokenizer;
import java.util.Vector;
import sun.misc.BASE64Decoder;
public class Tools{
public Tools(){
}
/**
* 将字符串进行base64编码
* */
public static String getBASE64(String s) {
if (s == null) return "";
return (new sun.misc.BASE64Encoder()).encode(s.getBytes());
}
/**
* 将字符串进行base64解码
* */
public static String getFromBASE64(String s) {
if (s == null) return "";
BASE64Decoder decoder = new BASE64Decoder();
try {
byte[] b = decoder.decodeBuffer(s);
return new String(b);
} catch (Exception e) {
return null;
}
}
/**
* 将字符串中的所有单引号替换成一对单引号，为空则返回空字符串而不是null
*/
public static String getLegalStr(String str){
try{
if(str==null){
return "";
}else{
str=str.trim();
str = str.replaceAll("'","''");
return str;
}
}catch(Exception e){
return "";
}
}
//检测字符串中是否有非法字符 开始
public static boolean havenoLawless(String str)
{
String lawless[] = new String[33];
lawless[0] = "`"; lawless[1] = "~"; lawless[2] = "!"; lawless[3] = "@";
lawless[4] = "#"; lawless[5] = "$"; lawless[6] = "%"; lawless[7] = "^";
lawless[8] = "&"; lawless[9] = "*"; lawless[10] = "("; lawless[11] = ")";
lawless[12] = "_"; lawless[13] = "+"; lawless[14] = "-"; lawless[15] = "=";
lawless[16] = "["; lawless[17] = "]"; lawless[18] = "\\"; lawless[19] = "{";
lawless[20] = "}"; lawless[21] = "|"; lawless[22] = ";"; lawless[23] = "'";
lawless[24] = ":"; lawless[25] = "\""; lawless[26] = ","; lawless[27] = ".";
lawless[28] = "/"; lawless[29] = "<"; lawless[30] = ">"; lawless[31] = "?";
lawless[32] = " ";
String temp="";
//for(int i=0;i<str.length();i++){
for(int i=0;i<str.length();i++){
temp = str.substring(i,i+1);
for(int j=0;j<lawless.length;j++){
if(temp.equals(lawless[j])){
return false;
}
}
}
return true;
}
//转换中文 开始
public static String getStr(String str){
try{
String temp_p=str;
if(temp_p==null || temp_p.trim().length()==0){
return "";
}
byte[] temp_t=temp_p.getBytes("ISO8859_1");
String temp=new String(temp_t,"gb2312");
return temp;
} catch(Exception e){
System.err.println("com.buy.tools.Tools.getStr() error: " + e.getMessage());
return "";
}
}
//转换html关键字 开始**********
public static String formatStr(String fString) {
if(fString==null) return "";
try {
fString = repstr(fString, """, "\"");
fString = repstr(fString, "<", "<");
fString = repstr(fString, ">", ">");
fString = repstr(fString, " ", "\r");
fString = repstr(fString, "<br>", "\n");
return (fString);
} catch (Exception e) {
System.err.println("com.buy.tools.Tools.formatStr() error: " +
e.getMessage());
return null;
}
}
//转换html关键字 结束**********
//得到数组里面不重复的元素 开始
public Object[] noRepeat(String[] args){
Vector v = new Vector();
int j=0;
for(int i=0;i<args.length;i++){
if(!v.contains(args[i])){
v.add(j, args[i]);
j++;
}
}
Object o[] = v.toArray();
return o;
}
//得到数组里面不重复的元素 结束
//生成随机密码 开始************
public static String getRandomPassword() {
try {
String charList[] = {"q", "w", "e", "r", "t", "y", "u", "i", "o",
"p", "a", "s", "d", "f", "g", "h", "j", "k",
"l", "z", "x", "c", "v", "b", "n", "m", "Q",
"W", "E", "R", "T", "Y", "U", "I", "O", "P",
"A", "S", "D", "F", "G", "H", "J", "K", "L",
"Z", "X", "C", "V", "B", "N", "M", "1", "2",
"3", "4", "5", "6", "7", "8", "9", "0", "-",
"=", "[", "]", ";", ",", ".", "/", "<", ">",
"?", ":", "{", "}", "~", "!", "@", "#", "$",
"%", "^", "&", "*", "(", ")", "_", "+", "|"};
//该数组长度90，应生成0到89的整数
int where = 0;
String returnValue = "";
for (int i = 0; i < 12; i++) {
where = (int) (Math.random() * 89);
returnValue += String.valueOf(charList[where]);
}
for (int i = 0; i < 90; i++) {
charList[i] = null;
}
charList = null;
return returnValue;
} catch (Exception e) {
System.err.println(
"com.buy.tools.Tools.getRandomPassword() error: " +
e.getMessage());
return null;
}
}
//生成随机密码 结束************
//拆分字符串 开始**************
public static String[] splitString(String str,String str2){
if(str!=null){
StringTokenizer st = new StringTokenizer(str, str2); //分界符str2
int count = st.countTokens();
String[] strArray = new String[count];
int i = 0;
while (st.hasMoreTokens()) {
strArray[i] = st.nextToken();
i++;
}
return strArray;
}else{
return null;
}
}
//拆分字符串 结束**************
//如果字符串为空或空字符串，给它赋值为空字符串，否则直接返回
public static String delnull(String str){
String aa="";
if(str==null || str.length()==0){
aa="";
}else{
aa=str;
}
return aa;
}
public static String mgroup(String[] arr) { //把字符串数组连成一个字符串
StringBuffer sb = new StringBuffer("");
for (int i = 0; i < arr.length; i++) {
sb.append(arr[i]);
}
return sb.toString();
}
}
代码:
package com.buy.tools;
public class MD5 {
/* 下面这些S11-S44实际上是一个4*4的矩阵，在原始的C实现中是用#define 实现的，
这里把它们实现成为static final是表示了只读，切能在同一个进程空间内的多个
Instance间共享*/
static final int S11 = 7;
static final int S12 = 12;
static final int S13 = 17;
static final int S14 = 22;
static final int S21 = 5;
static final int S22 = 9;
static final int S23 = 14;
static final int S24 = 20;
static final int S31 = 4;
static final int S32 = 11;
static final int S33 = 16;
static final int S34 = 23;
static final int S41 = 6;
static final int S42 = 10;
static final int S43 = 15;
static final int S44 = 21;
static final byte[] PADDING = { -128, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
/* 下面的三个成员是MD5计算过程中用到的3个核心数据，在原始的C实现中被定义到MD5_CTX结构中 */
private long[] state = new long[4]; // state (ABCD)
private long[] count = new long[2]; // number of bits, modulo 2^64 (lsb first)
private byte[] buffer = new byte[64]; // input buffer
/* digestHexStr是MD5的唯一一个公共成员，是最新一次计算结果的
16进制ASCII表示. */
public String digestHexStr;
/* digest,是最新一次计算结果的2进制内部表示，表示128bit的MD5值. */
private byte[] digest = new byte[16];
/* getMD5ofStr是类MD5最主要的公共方法，入口参数是你想要进行MD5变换的字符串
返回的是变换完的结果，这个结果是从公共成员digestHexStr取得的．*/
public String getMD5ofStr(String inbuf) {
md5Init();
md5Update(inbuf.getBytes(), inbuf.length());
md5Final();
digestHexStr = "";
for (int i = 0; i < 16; i++) {
digestHexStr += byteHEX(digest[i]);
}
return digestHexStr;
}
// 这是MD5这个类的标准构造函数，JavaBean要求有一个public的并且没有参数的构造函数
public MD5() {
md5Init();
return;
}
/* md5Init是一个初始化函数，初始化核心变量，装入标准的幻数 */
private void md5Init() {
count[0] = 0L;
count[1] = 0L;
/* Load magic initialization constants.*/
state[0] = 0x67452301L;
state[1] = 0xefcdab89L;
state[2] = 0x98badcfeL;
state[3] = 0x10325476L;
return;
}
/* F, G, H ,I 是4个基本的MD5函数，在原始的MD5的C实现中，由于它们是
简单的位运算，可能出于效率的考虑把它们实现成了宏，在java中，我们把它们
实现成了private方法，名字保持了原来C中的。 */
private long F(long x, long y, long z) {
return (x & y) | ((~x) & z);
}
private long G(long x, long y, long z) {
return (x & z) | (y & (~z));
}
private long H(long x, long y, long z) {
return x ^ y ^ z;
}
private long I(long x, long y, long z) {
return y ^ (x | (~z));
}
/* FF,GG,HH和II将调用F,G,H,I进行近一步变换
FF, GG, HH, and II transformations for rounds 1, 2, 3, and 4.
Rotation is separate from addition to prevent recomputation. */
private long FF(long a, long b, long c, long d, long x, long s,
long ac) {
a += F (b, c, d) + x + ac;
a = ((int) a << s) | ((int) a >>> (32 - s));
a += b;
return a;
}
private long GG(long a, long b, long c, long d, long x, long s,
long ac) {
a += G (b, c, d) + x + ac;
a = ((int) a << s) | ((int) a >>> (32 - s));
a += b;
return a;
}
private long HH(long a, long b, long c, long d, long x, long s,
long ac) {
a += H (b, c, d) + x + ac;
a = ((int) a << s) | ((int) a >>> (32 - s));
a += b;
return a;
}
private long II(long a, long b, long c, long d, long x, long s,
long ac) {
a += I (b, c, d) + x + ac;
a = ((int) a << s) | ((int) a >>> (32 - s));
a += b;
return a;
}
/* md5Update是MD5的主计算过程，inbuf是要变换的字节串，inputlen是长度，这个
函数由getMD5ofStr调用，调用之前需要调用md5init，因此把它设计成private的 */
private void md5Update(byte[] inbuf, int inputLen) {
int i, index, partLen;
byte[] block = new byte[64];
index = (int)(count[0] >>> 3) & 0x3F;
/* Update number of bits */
if ((count[0] += (inputLen << 3)) < (inputLen << 3))
count[1]++;
count[1] += (inputLen >>> 29);
partLen = 64 - index;
// Transform as many times as possible.
if (inputLen >= partLen) {
md5Memcpy(buffer, inbuf, index, 0, partLen);
md5Transform(buffer);
for (i = partLen; i + 63 < inputLen; i += 64) {
md5Memcpy(block, inbuf, 0, i, 64);
md5Transform (block);
}
index = 0;
} else
i = 0;
/* Buffer remaining input */
md5Memcpy(buffer, inbuf, index, i, inputLen - i);
}
/* md5Final整理和填写输出结果 */
private void md5Final () {
byte[] bits = new byte[8];
int index, padLen;
/* Save number of bits */
Encode (bits, count, 8);
/* Pad out to 56 mod 64. */
index = (int)(count[0] >>> 3) & 0x3f;
padLen = (index < 56) ? (56 - index) : (120 - index);
md5Update (PADDING, padLen);
/* Append length (before padding) */
md5Update(bits, 8);
/* Store state in digest */
Encode (digest, state, 16);
}
/* md5Memcpy是一个内部使用的byte数组的块拷贝函数，从input的inpos开始把len长度的
字节拷贝到output的outpos位置开始 */
private void md5Memcpy (byte[] output, byte[] input,int outpos, int inpos, int len)
{
int i;
for (i = 0; i < len; i++)
output[outpos + i] = input[inpos + i];
}
/* md5Transform是MD5核心变换程序，有md5Update调用，block是分块的原始字节 */
private void md5Transform (byte block[]) {
long a = state[0], b = state[1], c = state[2], d = state[3];
long[] x = new long[16];
Decode (x, block, 64);
/* Round 1 */
a = FF (a, b, c, d, x[0], S11, 0xd76aa478L); /* 1 */
d = FF (d, a, b, c, x[1], S12, 0xe8c7b756L); /* 2 */
c = FF (c, d, a, b, x[2], S13, 0x242070dbL); /* 3 */
b = FF (b, c, d, a, x[3], S14, 0xc1bdceeeL); /* 4 */
a = FF (a, b, c, d, x[4], S11, 0xf57c0fafL); /* 5 */
d = FF (d, a, b, c, x[5], S12, 0x4787c62aL); /* 6 */
c = FF (c, d, a, b, x[6], S13, 0xa8304613L); /* 7 */
b = FF (b, c, d, a, x[7], S14, 0xfd469501L); /* 8 */
a = FF (a, b, c, d, x[8], S11, 0x698098d8L); /* 9 */
d = FF (d, a, b, c, x[9], S12, 0x8b44f7afL); /* 10 */
c = FF (c, d, a, b, x[10], S13, 0xffff5bb1L); /* 11 */
b = FF (b, c, d, a, x[11], S14, 0x895cd7beL); /* 12 */
a = FF (a, b, c, d, x[12], S11, 0x6b901122L); /* 13 */
d = FF (d, a, b, c, x[13], S12, 0xfd987193L); /* 14 */
c = FF (c, d, a, b, x[14], S13, 0xa679438eL); /* 15 */
b = FF (b, c, d, a, x[15], S14, 0x49b40821L); /* 16 */
/* Round 2 */
a = GG (a, b, c, d, x[1], S21, 0xf61e2562L); /* 17 */
d = GG (d, a, b, c, x[6], S22, 0xc040b340L); /* 18 */
c = GG (c, d, a, b, x[11], S23, 0x265e5a51L); /* 19 */
b = GG (b, c, d, a, x[0], S24, 0xe9b6c7aaL); /* 20 */
a = GG (a, b, c, d, x[5], S21, 0xd62f105dL); /* 21 */
d = GG (d, a, b, c, x[10], S22, 0x2441453L); /* 22 */
c = GG (c, d, a, b, x[15], S23, 0xd8a1e681L); /* 23 */
b = GG (b, c, d, a, x[4], S24, 0xe7d3fbc8L); /* 24 */
a = GG (a, b, c, d, x[9], S21, 0x21e1cde6L); /* 25 */
d = GG (d, a, b, c, x[14], S22, 0xc33707d6L); /* 26 */
c = GG (c, d, a, b, x[3], S23, 0xf4d50d87L); /* 27 */
b = GG (b, c, d, a, x[8], S24, 0x455a14edL); /* 28 */
a = GG (a, b, c, d, x[13], S21, 0xa9e3e905L); /* 29 */
d = GG (d, a, b, c, x[2], S22, 0xfcefa3f8L); /* 30 */
c = GG (c, d, a, b, x[7], S23, 0x676f02d9L); /* 31 */
b = GG (b, c, d, a, x[12], S24, 0x8d2a4c8aL); /* 32 */
/* Round 3 */
a = HH (a, b, c, d, x[5], S31, 0xfffa3942L); /* 33 */
d = HH (d, a, b, c, x[8], S32, 0x8771f681L); /* 34 */
c = HH (c, d, a, b, x[11], S33, 0x6d9d6122L); /* 35 */
b = HH (b, c, d, a, x[14], S34, 0xfde5380cL); /* 36 */
a = HH (a, b, c, d, x[1], S31, 0xa4beea44L); /* 37 */
d = HH (d, a, b, c, x[4], S32, 0x4bdecfa9L); /* 38 */
c = HH (c, d, a, b, x[7], S33, 0xf6bb4b60L); /* 39 */
b = HH (b, c, d, a, x[10], S34, 0xbebfbc70L); /* 40 */
a = HH (a, b, c, d, x[13], S31, 0x289b7ec6L); /* 41 */
d = HH (d, a, b, c, x[0], S32, 0xeaa127faL); /* 42 */
c = HH (c, d, a, b, x[3], S33, 0xd4ef3085L); /* 43 */
b = HH (b, c, d, a, x[6], S34, 0x4881d05L); /* 44 */
a = HH (a, b, c, d, x[9], S31, 0xd9d4d039L); /* 45 */
d = HH (d, a, b, c, x[12], S32, 0xe6db99e5L); /* 46 */
c = HH (c, d, a, b, x[15], S33, 0x1fa27cf8L); /* 47 */
b = HH (b, c, d, a, x[2], S34, 0xc4ac5665L); /* 48 */
/* Round 4 */
a = II (a, b, c, d, x[0], S41, 0xf4292244L); /* 49 */
d = II (d, a, b, c, x[7], S42, 0x432aff97L); /* 50 */
c = II (c, d, a, b, x[14], S43, 0xab9423a7L); /* 51 */
b = II (b, c, d, a, x[5], S44, 0xfc93a039L); /* 52 */
a = II (a, b, c, d, x[12], S41, 0x655b59c3L); /* 53 */
d = II (d, a, b, c, x[3], S42, 0x8f0ccc92L); /* 54 */
c = II (c, d, a, b, x[10], S43, 0xffeff47dL); /* 55 */
b = II (b, c, d, a, x[1], S44, 0x85845dd1L); /* 56 */
a = II (a, b, c, d, x[8], S41, 0x6fa87e4fL); /* 57 */
d = II (d, a, b, c, x[15], S42, 0xfe2ce6e0L); /* 58 */
c = II (c, d, a, b, x[6], S43, 0xa3014314L); /* 59 */
b = II (b, c, d, a, x[13], S44, 0x4e0811a1L); /* 60 */
a = II (a, b, c, d, x[4], S41, 0xf7537e82L); /* 61 */
d = II (d, a, b, c, x[11], S42, 0xbd3af235L); /* 62 */
c = II (c, d, a, b, x[2], S43, 0x2ad7d2bbL); /* 63 */
b = II (b, c, d, a, x[9], S44, 0xeb86d391L); /* 64 */
state[0] += a;
state[1] += b;
state[2] += c;
state[3] += d;
}
/*Encode把long数组按顺序拆成byte数组，因为java的long类型是64bit的，
只拆低32bit，以适应原始C实现的用途 */
private void Encode (byte[] output, long[] input, int len) {
int i, j;
for (i = 0, j = 0; j < len; i++, j += 4) {
output[j] = (byte)(input[i] & 0xffL);
output[j + 1] = (byte)((input[i] >>> 8) & 0xffL);
output[j + 2] = (byte)((input[i] >>> 16) & 0xffL);
output[j + 3] = (byte)((input[i] >>> 24) & 0xffL);
}
}
/*Decode把byte数组按顺序合成成long数组，因为java的long类型是64bit的，
只合成低32bit，高32bit清零，以适应原始C实现的用途 */
private void Decode (long[] output, byte[] input, int len) {
int i, j;
for (i = 0, j = 0; j < len; i++, j += 4)
output[i] = b2iu(input[j]) |
(b2iu(input[j + 1]) << 8) |
(b2iu(input[j + 2]) << 16) |
(b2iu(input[j + 3]) << 24);
return;
}
/* b2iu是我写的一个把byte按照不考虑正负号的原则的＂升位＂程序，因为java没有unsigned运算 */
public static long b2iu(byte b) {
return b < 0 ? b & 0x7F + 128 : b;
}
/*byteHEX()，用来把一个byte类型的数转换成十六进制的ASCII表示，
因为java中的byte的toString无法实现这一点，我们又没有C语言中的
sprintf(outbuf,"%02X",ib)
如果把byteHEX函数中小写的a b c d e f 改为大写的A B C D E F 输出结果即为大写的英文字符，反之亦反。*/
public static String byteHEX(byte ib) {
char[] Digit = { '0','1','2','3','4','5','6','7','8','9',
'a','b','c','d','e','f' };
char [] ob = new char[2];
ob[0] = Digit[(ib >>> 4) & 0X0F];
ob[1] = Digit[ib & 0X0F];
String s = new String(ob);
return s;
}
}
SendMail.java
代码:
package com.buy.mail;
import javax.mail.*;
import javax.mail.internet.*;
import java.util.*;
import java.io.*;
public class SendMail {
public SendMail() {
}
/**
* 发送邮件
* 参数：
* @param tto 目标邮件地址
* @param ttitle 邮件标题
* @param tcontent 邮件正文
*/
public boolean send(String tto, String ttitle, String tcontent) throws
ClassNotFoundException, IllegalAccessException,
InstantiationException {
String sourceMail = "";
String smtp = "";
String username = "";
String password = "";
Properties prop = new Properties();
try {
InputStream is = getClass().getResourceAsStream("mail.properties");
prop.load(is);
if (is != null) {
is.close();
}
} catch (IOException e) {
System.err.println("com.buy.mail.sendMail.getMailAccounts() error： The file 'mail.properties' can't open ");
return false;
}
sourceMail = prop.getProperty("sourceMail");
smtp = prop.getProperty("smtp");
username = prop.getProperty("username");
password = prop.getProperty("password");
try{
if (sendHtml(tto, ttitle, tcontent, sourceMail, smtp, username, password)){
return true;
}else{
return false;
}
}catch(Exception e){
System.err.println("com.buy.mail.SendMail.send(String, String, String) error: "+e.getMessage());
return false;
}
}
/**
* 发送纯文本邮件
* 参数：
* @param tto ---------------------- 目标邮件地址
* @param ttitle ------------------- 邮件标题
* @param tcontent ----------------- 邮件正文
* @param sourceMail --------------- 发送邮件地址
* @param smtp --------------------- SMTP服务器地址
* @param username ----------------- 发邮件的帐号名
* @param password ----------------- 发邮件的密码
*/
public static boolean send(String tto, String ttitle, String tcontent,
String sourceMail, String smtp,
String username, String password) {
try {
Properties props = new Properties(); //也可用Properties props = System.getProperties();
props.put("mail.smtp.host", smtp); //存储发送邮件服务器的信息
props.put("mail.smtp.auth", "true"); //同时通过验证
Session s = Session.getInstance(props); //根据属性新建一个邮件会话
s.setDebug(false);
MimeMessage message = new MimeMessage(s); //由邮件会话新建一个消息对象
//设置邮件
InternetAddress from = new InternetAddress(sourceMail);
message.setFrom(from); //设置发件人
InternetAddress to = new InternetAddress(tto);
message.setRecipient(Message.RecipientType.TO, to); //设置收件人,并设置其接收类型为TO
message.setSubject(ttitle); //设置主题
message.setText(tcontent); //设置信件内容
message.setSentDate(new Date()); //设置发信时间
//发送邮件
message.saveChanges(); //存储邮件信息
Transport transport = s.getTransport("smtp");
transport.connect(smtp, username, password); //以smtp方式登录邮箱
transport.sendMessage(message, message.getAllRecipients()); //发送邮件,其中第二个参数是所有
//已设好的收件人地址
transport.close();
return true;
} catch (MessagingException e) {
System.err.println("com.buy.mail.SendMail.send(String, String, String, String, String, String) error: "+e.toString());
return false;
}
}
/**
* 发送HTML格式邮件
* 参数：
* @param tto ---------------------- 目标邮件地址
* @param ttitle ------------------- 邮件标题
* @param tcontent ----------------- 邮件正文
* @param sourceMail --------------- 发送邮件地址
* @param smtp --------------------- SMTP服务器地址
* @param username ----------------- 发邮件的帐号名
* @param password ----------------- 发邮件的密码
*/
public static boolean sendHtml(String tto, String ttitle, String tcontent,
String sourceMail, String smtp,
String username, String password) {
try {
Properties props = new Properties(); //也可用Properties props = System.getProperties();
props.put("mail.smtp.host", smtp); //存储发送邮件服务器的信息
props.put("mail.smtp.auth", "true"); //同时通过验证
Session s = Session.getInstance(props); //根据属性新建一个邮件会话
s.setDebug(false);
MimeMessage message = new MimeMessage(s); //由邮件会话新建一个消息对象
//设置邮件
InternetAddress from = new InternetAddress(sourceMail);
message.setFrom(from); //设置发件人
InternetAddress to = new InternetAddress(tto);
message.setRecipient(Message.RecipientType.TO, to); //设置收件人,并设置其接收类型为TO
message.setSubject(ttitle); //设置主题
//message.setText(tcontent); //设置信件内容
message.setSentDate(new Date()); //设置发信时间
//给消息对象设置内容
BodyPart mdp=new MimeBodyPart();//新建一个存放信件内容的BodyPart对象
mdp.setContent(tcontent,"text/html;charset=gb2312");//给BodyPart对象设置内容和格式/编码方式
Multipart mm=new MimeMultipart();//新建一个MimeMultipart对象用来存放BodyPart对象(事实上可以存放多个)
mm.addBodyPart(mdp);//将BodyPart加入到MimeMultipart对象中(可以加入多个BodyPart)
message.setContent(mm);//把mm作为消息对象的内容
//发送邮件
message.saveChanges(); //存储邮件信息
Transport transport = s.getTransport("smtp");
transport.connect(smtp, username, password); //以smtp方式登录邮箱
transport.sendMessage(message, message.getAllRecipients()); //发送邮件,其中第二个参数是所有
//已设好的收件人地址
transport.close();
return true;
} catch (MessagingException e) {
System.err.println("com.buy.mail.SendMail.send(String, String, String, String, String, String) error: "+e.toString());
return false;
}
}
}
同目录下的mail.properties：
代码:
sourceMail="你的邮箱名称"<你的邮箱帐号@163.com>
smtp=smtp.163.com
username=你的邮箱帐号
password=你的邮箱密码
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