Java 常用的30个通用功能工具类梳理(如:CookieCounter、MD5工具类、分页split_page.jsp、获取绝对路径 .java、记录log日志文件等)
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java常见的30个工具类
我们在java开发中有很多常见的功能,像常见的字符串、日期、cookie的操作、日志、文件等的操作,加解密操作,这些每次都是用到了然后再去百度,很浪费时间,这里给大家梳理了常见的这些工具类,可以帮助你在开发中节省很多搜索的时间。同时,对这些常见的操作,多加练习,也可以稳固提升自己的编程能力。
工具类截图
part1:
part2:
工具清单
[工具类] CookieCounter .java.txt
[工具类] Java中计算任意两个日期之间的工作天
[工具类] java抓取网页 .java.txt
[工具类] MD5 .java.txt
[工具类] MD5强化版 .java.txt
[工具类] MD5超强化版 .java.txt
[工具类] XML 实用工具类 .java.txt
[工具类] XML工具类2 .java.txt
[工具类] 一个压缩工具类.java.txt
[工具类] 中文验证.jsp.txt
[工具类] 使用Java程序来实现HTTP文件的队列下
[工具类] 分页split_page.jsp .jsp.txt
[工具类] 序列化保存为XML文件的工具类 .java.
[工具类] 文件FileUtil.java
[工具类] 文件操作工具类 .java.txt
[工具类] 日期DateUtil.java
[工具类] 时间Time.java
[工具类] 时间工具TimeUtil.java
[工具类] 框架StringUtil.java
[工具类] 测试Mysql的最大连接数 .java.txt
[工具类] 用java编写简单UDP网络通信程序 .jav
[工具类] 获取绝对路径 .java.txt
[工具类] 获得汉字拼音首字母的java工具类.jav
[工具类] 记录log日志文件的工具类 .java.txt
[工具类] 读取、打印输出、保存xml .java.txt
[工具类] 连接数据库的工具类 .java.txt
[工具类] 连数据库ConnectDB.java
[工具类] 通信客户端simpleClient.java
[工具类] 通信服务端simpleServer.java
[工具类] 验证码img .jsp.txt
工具类分类
1、文件(IO、文件、日志读写)操作类
2、通信类
3、jsp相关操作类
4、日期处理类
5、加解密操作类
6、字符串操作类
7、数据库操作类
8、其他
代码
[工具类] CookieCounter .java
import java.io.*;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;
/**
* <p>Title: servlet读取cookie</p>
* <p>Description: 这个servlet演示怎样创建和获取cookie并设置cookie的期限</p>
* <p>Copyright: Copyright (c) 2003</p>
* <p>Filename: CookieCounter.java</p>
* @author 杜江
* @version 1.0
*/
//必须继承HttpServlet类
public class CookieCounter extends HttpServlet {
private int pageCount = 0;
/**
*<br>方法说明:初始化
*<br>输入参数:ServletConfig config 服务器配置对象
*<br>返回类型:
*/
public void init(ServletConfig config) throws ServletException {
super.init(config);
}
/**
*<br>方法说明:实现service方法
*<br>输入参数:HttpServletRequest req 客户请求对象
*<br>输入参数:HttpServletResponse res 服务器应答对象
*<br>返回类型:
*/
public void service(HttpServletRequest req, HttpServletResponse res)
throws IOException
{
boolean cookieFound = false;
Cookie thisCookie = null;
// 设置内容类型
res.setContentType("text/html; charset=GB2312");
// 调用getWriter()
PrintWriter out = res.getWriter();
// 从请求获取coolies
Cookie[] cookies = req.getCookies();
if(cookies!=null){
for(int i=0; i < cookies.length; i++) {
thisCookie = cookies[i];
//检查是否存在CookieCount数据
if (thisCookie.getName().equals("CookieCount")) {
cookieFound = true;
break;
}
}
}
if (cookieFound == false) {
// 创建新的Cookie并设置它的存活期
thisCookie = new Cookie("CookieCount", "1");
thisCookie.setMaxAge(60*1);
// 在response对象中加入cookie
res.addCookie(thisCookie);
}
//输出页面
out.println("<html><head>\n" + "<title>Cookie计数器</title></head><body>\n" +
"<center><h1>Cookie 计数器</h1></center></font>");
pageCount++;
out.println("<p>");
out.println("<font color=blue size=+1>");
out.println("<p><br><br><br>这个页面您已经拜访了 " + pageCount +
" 次.\n");
// 显示客户端详细信息,是否存在计数器cookie
if (cookieFound) {
int cookieCount = Integer.parseInt(thisCookie.getValue());
cookieCount++;
// 设置cookie的新值, 加到相应对象中
thisCookie.setValue(String.valueOf(cookieCount));
thisCookie.setMaxAge(10);
res.addCookie(thisCookie);
out.println("<p>这是你近10秒内第 " +
thisCookie.getValue() +
" 次拜访这一页\n");
} else {
out.println("<p>你在近10秒内没有拜访过此页或者你的浏览器不支持cookie "+
"如果你的浏览器支持cookie,请确认是否打开了!\n");
}
out.println("</body></html>");
}
}
[工具类] 连数据库ConnectDB.java:
package com.common.database;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
/**
* 功能描述:连接数据库-mysql/oracle
*
* @author :FangHewei
* @Date :Jul 18, 2008
* @Time :3:28:59 PM
* @version :1.0
*/
public class ConnectDB {
private static final String MYSQL = "jdbc:mysql://";
private static final String ORACLE = "jdbc:oracle:thin:@";
private static final String SQLSERVER = "jdbc:microsoft:sqlserver://";
private ConnectDB() {
}
public static Connection getConnection(String DBType, String url,
String user, String password) throws SQLException {
if ("mysql".equalsIgnoreCase(DBType))
return getMySqlConn(url, user, password);
if ("oracle".equalsIgnoreCase(DBType))
return getOracleConn(url, user, password);
if ("sqlserver".equals(DBType)){
return getSqlServerConn(url, user, password);
}
return null;
}
public static void closeConn(Connection conn) {
if (conn != null) {
try {
conn.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
}
private static Connection getMySqlConn(String url, String user,
String password) throws SQLException {
Connection conn = null;
try {
Class.forName("com.mysql.jdbc.Driver");// 加载驱动
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
conn = DriverManager.getConnection(MYSQL + url, "root", "root");
return conn;
}
private static Connection getOracleConn(String url, String user,
String password) throws SQLException {
Connection conn = null;
try {
Class.forName("oracle.jdbc.driver.OracleDriver");// 加载驱动
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
conn = DriverManager.getConnection(ORACLE + url, "scott", "tiger");
return conn;
}
private static Connection getSqlServerConn(String url, String user,
String password) throws SQLException {
Connection conn = null;
try {
Class.forName("com.microsoft.jdbc.sqlserver.SQLServerDriver");// 加载驱动
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
conn = DriverManager.getConnection(SQLSERVER + url, "root", "root");
return conn;
}
public static void main(String[] args) {
try {
Connection conn = getConnection("MySQL", "127.0.0.1", "root",
"root");
if (conn == null) {
System.out.println("Connection the database is failled !");
} else {
System.out.println(conn.toString());
}
} catch (SQLException e) {
e.printStackTrace();
}
}
}
[工具类] MD5 .java:
/************************************************
MD5 算法的Java Bean
Last Modified:10,Mar,2001
*************************************************/
import java.lang.reflect.*;
/*************************************************
md5 类实现了RSA Data Security, Inc.在提交给IETF
的RFC1321中的MD5 message-digest 算法。
*************************************************/
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));
}
/*
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)
*/
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;
}
}
[工具类] 分页split_page.jsp:
<%@ page contentType="text/html;charset=gbk"%>
<%
// 页面连接路径
String jspUrl = null ;
// 定义如下分页变量
// 1、定义没页要显示的记录数,默认是10条每页
int lineSize = 10 ;
// 2、定义一个当前是第几页
int currentPage = 1 ;
// 计算出总页数
int pageSize = 0 ;
// 总记录数 / 每页显示的记录数
int allRecorders = 0 ;
// 加入查询关键字变量
String keyWord = null ;
// 加入一个检索标记
String searchFlag = "F" ;
%>
<%
// 需要从外面接收以下参数
// 当前页、每页显示的记录数、总记录数、查询关键字、连接地址
jspUrl = request.getParameter("jspUrl") ;
keyWord = request.getParameter("keyWord") ;
searchFlag = request.getParameter("searchFlag") ;
try
{
lineSize = Integer.parseInt(request.getParameter("lineSize")) ;
currentPage = Integer.parseInt(request.getParameter("currentPage")) ;
allRecorders = Integer.parseInt(request.getParameter("allRecorders")) ;
}
catch(Exception e)
{
// s
}
%>
<%
// 计算总页数
pageSize = (allRecorders+lineSize-1)/lineSize ;
%>
<script language="javaScript">
function openPage(curpage)
{
document.spage.cp.value = curpage ;
// alert(cupage) ;
document.spage.submit() ;
}
function selOpenPage()
{
document.spage.cp.value = document.spage.selpage.value ;
document.spage.submit() ;
}
function change()
{
if(document.spage.kw.value!="")
{
document.spage.status.value = "selectlike" ;
}
}
</script>
<form name="spage" action="<%=jspUrl%>" onSubmit="change()">
<input type="hidden"
name="status" value="${status}"> <input type="hidden"
name="${param.flagname}" value=${param.flagvalue}> <%
if ("T".equals(searchFlag)) {
%> 输入查询关键字:<input type="text" name="kw"
value="<%=keyWord.equals("null") ? "" : keyWord%>"> <input
type="submit" value="查询"> <br>
<br>
<%
}
%> <%
if (allRecorders > 0) {
%> <input type="button" value="首页" onClick="openPage(1)"
<%=currentPage == 1 ? "disabled" : ""%>> <input type="button"
value="上一页" onClick="openPage(<%=currentPage - 1%>)"
<%=currentPage == 1 ? "disabled" : ""%>> <input type="button"
value="下一页" onClick="openPage(<%=currentPage + 1%>)"
<%=currentPage == pageSize ? "disabled" : ""%>> <input type="button"
value="尾页" onClick="openPage(<%=pageSize%>)"
<%=currentPage == pageSize ? "disabled" : ""%>> <input type="hidden"
name="cp" value=""> <font color="red" size="5"><%=currentPage%></font>
/ <font color="red" size="5"><%=pageSize%></font> 跳转到 <select
name="selpage" onChange="selOpenPage()">
<%
for (int x = 1; x <= pageSize; x++) {
%>
<option value="<%=x%>" <%=currentPage == x ? "selected" : ""%>><%=x%></option>
<%
}
%>
</select> 页 <%
}
%>
</form>
写在最后
(代码由于太多贴不全,如果有问题或者需要所有源码,可以加博主V交流: Code2Life2)