日期转换工具类 CommUtil.java
-
package com.util;
-
-
import java.text.ParseException;
-
import java.text.SimpleDateFormat;
-
import java.util.Date;
-
-
-
-
-
public class CommUtil {
-
-
-
-
-
-
-
-
public static String dateToString(Date time) {
-
-
SimpleDateFormat formatter = new SimpleDateFormat ("yyyy-MM-dd");
-
String stringTime = formatter.format(time);
-
-
return stringTime;
-
-
}
-
-
-
-
-
-
-
public static String dateTimeToString(Date time) {
-
-
SimpleDateFormat formatter = new SimpleDateFormat ("yyyyMMdd");
-
String stringTime = formatter.format(time);
-
-
return stringTime;
-
-
}
-
-
-
-
-
-
-
-
-
public static Date dateToDate(Date time) {
-
-
SimpleDateFormat formatter = new SimpleDateFormat ("yyyy-MM-dd");
-
String stringTime = formatter.format(time);
-
Date date = null;
-
try {
-
date = formatter.parse(stringTime);
-
} catch (ParseException e) {
-
e.printStackTrace();
-
}
-
return date;
-
-
}
-
-
-
-
-
-
public static String getDate(){
-
Date date = new Date();
-
return CommUtil.dateToString(date);
-
}
-
}
日期转换类 DateConverter.java
-
package com.util;
-
-
import java.text.DateFormat;
-
import java.text.SimpleDateFormat;
-
import java.util.Date;
-
import java.util.Map;
-
-
import com.opensymphony.xwork2.conversion.impl.DefaultTypeConverter;
-
-
-
-
-
-
public class DateConverter extends DefaultTypeConverter {
-
private static final DateFormat[] ACCEPT_DATE_FORMATS = {
-
new SimpleDateFormat("dd/MM/yyyy"),
-
new SimpleDateFormat("yyyy-MM-dd"),
-
new SimpleDateFormat("yyyy/MM/dd") };
-
-
@Override
-
public Object convertValue(Map context, Object value, Class toType) {
-
if (toType == Date.class) {
-
Date date = null;
-
String dateString = null;
-
String[] params = (String[])value;
-
dateString = params[0];
-
for (DateFormat format : ACCEPT_DATE_FORMATS) {
-
try {
-
return format.parse(dateString);
-
} catch(Exception e) {
-
continue;
-
}
-
}
-
return null;
-
}
-
else if (toType == String.class) {
-
Date date = (Date)value;
-
return new SimpleDateFormat("yyyy-MM-dd").format(date);
-
}
-
-
return null;
-
}
-
}
功能更强大的格式化工具类 FormatUtils.java
分页工具类 SharePager.java
-
package com.util;
-
-
-
-
-
-
-
public class SharePager {
-
private int totalRows;
-
private int pageSize = 20;
-
private int currentPage;
-
private int totalPages;
-
private int startRow;
-
-
-
-
-
-
public SharePager()
-
{
-
-
}
-
-
-
-
-
public SharePager(int totalRows)
-
{
-
this.totalRows = totalRows;
-
-
totalPages =(int) Math.ceil((double)totalRows / (double)pageSize);
-
startRow = 0;
-
}
-
-
-
-
-
-
-
public SharePager(int totalRows, int pageSize)
-
{
-
this.totalRows = totalRows;
-
this.pageSize = pageSize;
-
if(this.pageSize<1)
-
this.pageSize=1;
-
else if(pageSize>20)
-
this.pageSize=20;
-
-
-
-
-
-
-
-
totalPages =(int) Math.ceil((double)totalRows / (double)this.pageSize);
-
currentPage = 1;
-
startRow = 0;
-
}
-
-
-
-
-
public void first()
-
{
-
this.currentPage = 1;
-
this.startRow = 0;
-
}
-
-
-
-
-
public void previous()
-
{
-
if (currentPage == 1)
-
{
-
return;
-
}
-
currentPage--;
-
startRow = (currentPage-1) * pageSize;
-
}
-
-
-
-
-
public void next()
-
{
-
if (currentPage < totalPages)
-
{
-
currentPage++;
-
}
-
startRow = (currentPage-1) * pageSize;
-
}
-
-
-
-
-
public void last()
-
{
-
this.currentPage = totalPages;
-
if(currentPage<1){
-
currentPage = 1;
-
}
-
this.startRow = (currentPage-1) * this.pageSize;
-
totalPages =(int) Math.ceil((double)totalRows / (double)this.pageSize);
-
-
}
-
-
-
-
-
-
public void refresh(int currentPage)
-
{
-
-
if(currentPage < 0)
-
{
-
first();
-
}
-
if (currentPage > totalPages)
-
{
-
last();
-
}else{
-
this.currentPage = currentPage;
-
this.startRow = (currentPage-1) * this.pageSize;
-
}
-
-
}
-
-
-
public int getStartRow()
-
{
-
return startRow;
-
}
-
-
public int getTotalPages()
-
{
-
return totalPages;
-
}
-
-
public int getCurrentPage()
-
{
-
return currentPage;
-
}
-
-
public int getPageSize()
-
{
-
return pageSize;
-
}
-
-
public void setTotalRows(int totalRows)
-
{
-
this.totalRows = totalRows;
-
}
-
-
public void setStartRow(int startRow)
-
{
-
this.startRow = startRow;
-
}
-
-
public void setTotalPages(int totalPages)
-
{
-
this.totalPages = totalPages;
-
}
-
-
public void setCurrentPage(int currentPage)
-
{
-
this.currentPage = currentPage;
-
}
-
-
public void setPageSize(int pageSize)
-
{
-
this.pageSize = pageSize;
-
}
-
-
public int getTotalRows()
-
{
-
return totalRows;
-
}
-
}
-
读取Config文件工具类 PropertiesConfig.java
-
package com.util;
-
-
import java.io.BufferedInputStream;
-
import java.io.FileInputStream;
-
import java.io.InputStream;
-
import java.util.Properties;
-
-
-
-
-
-
public class PropertiesConfig {
-
-
-
-
-
-
public static Properties readData(String filePath) {
-
filePath = getRealPath(filePath);
-
Properties props = new Properties();
-
try {
-
InputStream in = new BufferedInputStream(new FileInputStream(filePath));
-
props.load(in);
-
in.close();
-
return props;
-
} catch (Exception e) {
-
e.printStackTrace();
-
return null;
-
}
-
}
-
-
private static String getRealPath(String filePath) {
-
-
return PropertiesConfig.class.getResource("/" + filePath).toString().substring(6);
-
}
-
}
MD5编码工具类 MD5Code.java
-
package com.util;
-
-
-
-
-
public class MD5Code {
-
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 };
-
-
private long[] state = new long[4];
-
-
private long[] count = new long[2];
-
-
-
-
private byte[] buffer = new byte[64];
-
-
-
public String digestHexStr;
-
-
private byte[] digest = new byte[16];
-
-
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;
-
}
-
-
public MD5Code() {
-
md5Init();
-
return;
-
}
-
-
private void md5Init() {
-
count[0] = 0L;
-
count[1] = 0L;
-
-
state[0] = 0x67452301L;
-
state[1] = 0xefcdab89L;
-
state[2] = 0x98badcfeL;
-
state[3] = 0x10325476L;
-
return;
-
}
-
-
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));
-
}
-
-
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;
-
}
-
-
private void md5Update(byte[] inbuf, int inputLen) {
-
int i, index, partLen;
-
byte[] block = new byte[64];
-
index = (int) (count[0] >>> 3) & 0x3F;
-
-
if ((count[0] += (inputLen << 3)) < (inputLen << 3))
-
count[1]++;
-
count[1] += (inputLen >>> 29);
-
partLen = 64 - index;
-
-
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;
-
-
md5Memcpy(buffer, inbuf, index, i, inputLen - i);
-
}
-
-
private void md5Final() {
-
byte[] bits = new byte[8];
-
int index, padLen;
-
-
Encode(bits, count, 8);
-
-
index = (int) (count[0] >>> 3) & 0x3f;
-
padLen = (index < 56) ? (56 - index) : (120 - index);
-
md5Update(PADDING, padLen);
-
-
md5Update(bits, 8);
-
-
Encode(digest, state, 16);
-
}
-
-
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];
-
}
-
-
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);
-
-
a = FF(a, b, c, d, x[0], S11, 0xd76aa478L);
-
d = FF(d, a, b, c, x[1], S12, 0xe8c7b756L);
-
c = FF(c, d, a, b, x[2], S13, 0x242070dbL);
-
b = FF(b, c, d, a, x[3], S14, 0xc1bdceeeL);
-
a = FF(a, b, c, d, x[4], S11, 0xf57c0fafL);
-
d = FF(d, a, b, c, x[5], S12, 0x4787c62aL);
-
c = FF(c, d, a, b, x[6], S13, 0xa8304613L);
-
b = FF(b, c, d, a, x[7], S14, 0xfd469501L);
-
a = FF(a, b, c, d, x[8], S11, 0x698098d8L);
-
d = FF(d, a, b, c, x[9], S12, 0x8b44f7afL);
-
c = FF(c, d, a, b, x[10], S13, 0xffff5bb1L);
-
b = FF(b, c, d, a, x[11], S14, 0x895cd7beL);
-
a = FF(a, b, c, d, x[12], S11, 0x6b901122L);
-
d = FF(d, a, b, c, x[13], S12, 0xfd987193L);
-
c = FF(c, d, a, b, x[14], S13, 0xa679438eL);
-
b = FF(b, c, d, a, x[15], S14, 0x49b40821L);
-
-
a = GG(a, b, c, d, x[1], S21, 0xf61e2562L);
-
d = GG(d, a, b, c, x[6], S22, 0xc040b340L);
-
c = GG(c, d, a, b, x[11], S23, 0x265e5a51L);
-
b = GG(b, c, d, a, x[0], S24, 0xe9b6c7aaL);
-
a = GG(a, b, c, d, x[5], S21, 0xd62f105dL);
-
d = GG(d, a, b, c, x[10], S22, 0x2441453L);
-
c = GG(c, d, a, b, x[15], S23, 0xd8a1e681L);
-
b = GG(b, c, d, a, x[4], S24, 0xe7d3fbc8L);
-
a = GG(a, b, c, d, x[9], S21, 0x21e1cde6L);
-
d = GG(d, a, b, c, x[14], S22, 0xc33707d6L);
-
c = GG(c, d, a, b, x[3], S23, 0xf4d50d87L);
-
b = GG(b, c, d, a, x[8], S24, 0x455a14edL);
-
a = GG(a, b, c, d, x[13], S21, 0xa9e3e905L);
-
d = GG(d, a, b, c, x[2], S22, 0xfcefa3f8L);
-
c = GG(c, d, a, b, x[7], S23, 0x676f02d9L);
-
b = GG(b, c, d, a, x[12], S24, 0x8d2a4c8aL);
-
-
a = HH(a, b, c, d, x[5], S31, 0xfffa3942L);
-
d = HH(d, a, b, c, x[8], S32, 0x8771f681L);
-
c = HH(c, d, a, b, x[11], S33, 0x6d9d6122L);
-
b = HH(b, c, d, a, x[14], S34, 0xfde5380cL);
-
a = HH(a, b, c, d, x[1], S31, 0xa4beea44L);
-
d = HH(d, a, b, c, x[4], S32, 0x4bdecfa9L);
-
c = HH(c, d, a, b, x[7], S33, 0xf6bb4b60L);
-
b = HH(b, c, d, a, x[10], S34, 0xbebfbc70L);
-
a = HH(a, b, c, d, x[13], S31, 0x289b7ec6L);
-
d = HH(d, a, b, c, x[0], S32, 0xeaa127faL);
-
c = HH(c, d, a, b, x[3], S33, 0xd4ef3085L);
-
b = HH(b, c, d, a, x[6], S34, 0x4881d05L);
-
a = HH(a, b, c, d, x[9], S31, 0xd9d4d039L);
-
d = HH(d, a, b, c, x[12], S32, 0xe6db99e5L);
-
c = HH(c, d, a, b, x[15], S33, 0x1fa27cf8L);
-
b = HH(b, c, d, a, x[2], S34, 0xc4ac5665L);
-
-
a = II(a, b, c, d, x[0], S41, 0xf4292244L);
-
d = II(d, a, b, c, x[7], S42, 0x432aff97L);
-
c = II(c, d, a, b, x[14], S43, 0xab9423a7L);
-
b = II(b, c, d, a, x[5], S44, 0xfc93a039L);
-
a = II(a, b, c, d, x[12], S41, 0x655b59c3L);
-
d = II(d, a, b, c, x[3], S42, 0x8f0ccc92L);
-
c = II(c, d, a, b, x[10], S43, 0xffeff47dL);
-
b = II(b, c, d, a, x[1], S44, 0x85845dd1L);
-
a = II(a, b, c, d, x[8], S41, 0x6fa87e4fL);
-
d = II(d, a, b, c, x[15], S42, 0xfe2ce6e0L);
-
c = II(c, d, a, b, x[6], S43, 0xa3014314L);
-
b = II(b, c, d, a, x[13], S44, 0x4e0811a1L);
-
a = II(a, b, c, d, x[4], S41, 0xf7537e82L);
-
d = II(d, a, b, c, x[11], S42, 0xbd3af235L);
-
c = II(c, d, a, b, x[2], S43, 0x2ad7d2bbL);
-
b = II(b, c, d, a, x[9], S44, 0xeb86d391L);
-
state[0] += a;
-
state[1] += b;
-
state[2] += c;
-
state[3] += d;
-
}
-
-
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);
-
}
-
}
-
-
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;
-
}
-
-
public static long b2iu(byte b) {
-
return b < 0 ? b & 0x7F + 128 : b;
-
}
-
-
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;
-
}
-
}

文件上传工具类 UploadUtil.java
-
package com.util;
-
-
import java.io.BufferedInputStream;
-
import java.io.BufferedOutputStream;
-
import java.io.File;
-
import java.io.FileInputStream;
-
import java.io.FileOutputStream;
-
import java.io.InputStream;
-
import java.io.OutputStream;
-
import java.util.Calendar;
-
-
-
-
-
-
public class UploadUtil {
-
private static final int BUFFER_SIZE = 16 * 1024;
-
-
public static synchronized void copy(File src, File newFile) {
-
-
try {
-
InputStream is = null;
-
OutputStream os = null;
-
try {
-
is = new BufferedInputStream(new FileInputStream(src),
-
BUFFER_SIZE);
-
os = new BufferedOutputStream(new FileOutputStream(newFile),
-
BUFFER_SIZE);
-
byte[] buffer = new byte[BUFFER_SIZE];
-
while (is.read(buffer) > 0) {
-
os.write(buffer);
-
}
-
} finally {
-
if (null != is) {
-
is.close();
-
}
-
if (null != os) {
-
os.close();
-
}
-
}
-
} catch (Exception e) {
-
e.printStackTrace();
-
}
-
}
-
-
-
-
-
-
@SuppressWarnings("static-access")
-
public static synchronized String getTime() {
-
Calendar calendar = Calendar.getInstance();
-
String year = calendar.get(calendar.YEAR) + "";
-
String month = (calendar.get(calendar.MONTH) + 1) + "";
-
String day = calendar.get(calendar.DAY_OF_MONTH) + "";
-
String hour = calendar.get(calendar.HOUR_OF_DAY) + "";
-
String minute = calendar.get(calendar.MINUTE) + "";
-
String second = calendar.get(calendar.SECOND) + "";
-
String milliSecond = calendar.get(calendar.MILLISECOND) + "";
-
int r = (int)(Math.random()*100000);
-
String random = String.valueOf(r);
-
return year + month + day + hour + minute + second + milliSecond + random+"a";
-
}
-
-
}
常用工具类封装
原文:https://www.cnblogs.com/jpfss/p/9293335.html