<%@ page contentType="image/jpeg" import="java.awt.*,java.awt.image.*,java.util.*,javax.imageio.*" %>
<%!
Color getRandColor(int fc,int bc){//给定范围获得随机颜色

        Random random = new Random();
        if(fc>255) fc=255;
        if(bc>255) bc=255;
 

public class MD5Code {
/*
* 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;

DATABASE---------MYSQL

CREATE TABLE student (
id varchar(100) NOT NULL default '',
name varchar(20) default '',
`cardId` varchar(20) NOT NULL default '',
age int(11) default '0',
PRIMARY KEY (id)
) ENGINE = InnoDB
CHARACTER SET utf8 COLLATE utf8_general_ci;

编写持久层代码

1

Name

public class Name {
private String firstname;
private String lastname;
public String getFirstname() {
   return firstname;
}
public void setFirstname(String firstname) {
   this.firstname = firstname;
}
public String getLastname() {
   return lastname;
}
public void setLastname(String lastname) {
  

hibernate.cfg.xml

<?xml version='1.0' encoding='UTF-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
          "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
          "

Person

package com.study.vo;

public class Person {
private String id;

private String name;

private String password;

public String getId() {
   return id;
}

public void setId(String id

JavaBean开发完成之后,在jsp中调用过程:

1:使用<%@page import=""%>使用导入指令

   <jsp:useBean

    id="ss"

package com.study.lesson7;

import java.util.*;

public class TestMap {

public static void main(String[] args) {
   Map m1 = new HashMap();
   Map m2 = new TreeMap();
//   m1.put("one", new Integer(1));
   m1.put("one", 1);
//   m1.put("two", new Integer(

public class Name implements Comparable {
private String firstName, lastName;

public Name(String firstName, String lastName) {
   this.firstName = firstName;
   this.lastName = lastName;

}

public String getFirstName() {
   return firstName;