这是我的表结构：
DROP TABLE IF EXISTS `animalphotos`;
CREATE TABLE `animalphotos` (
`photo_id` int NOT NULL AUTO_INCREMENT COMMENT ' 照片ID',
`animal_id` int NULL DEFAULT NULL COMMENT ' 所属动物ID',
`photo_url` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NOT NULL COMMENT '图片路径或URL',
PRIMARY KEY (`photo_id`) USING BTREE,
INDEX `animal_id`(`animal_id` ASC) USING BTREE,
CONSTRAINT `animalphotos_ibfk_1` FOREIGN KEY (`animal_id`) REFERENCES `animals` (`animal_id`) ON DELETE RESTRICT ON UPDATE RESTRICT
) ENGINE
= InnoDB AUTO_INCREMENT
= 1 CHARACTER SET
= utf8mb4 COLLATE
= utf8mb4_0900_ai_ci ROW_FORMAT
= Dynamic;
-- ----------------------------
-- Table structure for animals
-- ----------------------------
DROP TABLE IF EXISTS `animals`;
CREATE TABLE `animals` (
`animal_id` int NOT NULL AUTO_INCREMENT COMMENT '动物唯一标识',
`name` varchar(50) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NOT NULL COMMENT '名称',
`species` varchar(25) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NULL DEFAULT NULL COMMENT ' 种类',
`gender` enum('雄','雌') CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NOT NULL COMMENT ' 性别',
`age` int NULL DEFAULT NULL COMMENT ' 年龄',
`user_id` int NULL DEFAULT NULL COMMENT ' 关联饲养者/管理者（Users
.user_id）',
`zone` varchar(100) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NULL DEFAULT NULL COMMENT '动物位置',
PRIMARY KEY (`animal_id`) USING BTREE,
INDEX `caretaker_id`(`user_id` ASC) USING BTREE,
INDEX `species_id`(`species` ASC) USING BTREE,
CONSTRAINT `animals_ibfk_1` FOREIGN KEY (`user_id`) REFERENCES `users` (`user_id`) ON DELETE RESTRICT ON UPDATE RESTRICT
) ENGINE
= InnoDB AUTO_INCREMENT
= 1 CHARACTER SET
= utf8mb4 COLLATE
= utf8mb4_0900_ai_ci ROW_FORMAT
= Dynamic;
-- ----------------------------
-- Table structure for animaltraits
-- ----------------------------
DROP TABLE IF EXISTS `animaltraits`;
CREATE TABLE `animaltraits` (
`trait_id` int NOT NULL AUTO_INCREMENT COMMENT ' 特征ID',
`animal_id` int NULL DEFAULT NULL COMMENT '动物ID（Animals）',
`nature` varchar(20) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NOT NULL COMMENT '性格 ',
`favourite` text CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NULL COMMENT ' 喜好描述',
PRIMARY KEY (`trait_id`) USING BTREE,
INDEX `animal_id`(`animal_id` ASC) USING BTREE,
CONSTRAINT `animaltraits_ibfk_1` FOREIGN KEY (`animal_id`) REFERENCES `animals` (`animal_id`) ON DELETE RESTRICT ON UPDATE RESTRICT
) ENGINE
= InnoDB AUTO_INCREMENT
= 1 CHARACTER SET
= utf8mb4 COLLATE
= utf8mb4_0900_ai_ci ROW_FORMAT
= Dynamic;
-- ----------------------------
-- Table structure for users
-- ----------------------------
DROP TABLE IF EXISTS `users`;
CREATE TABLE `users` (
`user_id` int NOT NULL AUTO_INCREMENT COMMENT ' 用户唯一标识',
`username` varchar(20) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NOT NULL COMMENT '用户名',
`password` varchar(30) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NOT NULL COMMENT '密码（加密）',
`role` enum('游客','饲养者','管理员') CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NOT NULL COMMENT ' 角色：游客/饲养者/管理员',
`status` enum('在线','离线') CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NULL DEFAULT NULL COMMENT '用户状态(是否在线)',
PRIMARY KEY (`user_id`) USING BTREE
) ENGINE
= InnoDB AUTO_INCREMENT
= 9 CHARACTER SET
= utf8mb4 COLLATE
= utf8mb4_0900_ai_ci ROW_FORMAT
= Dynamic;
SET FOREIGN_KEY_CHECKS
= 1;
这是我的实体类：
// User 类
public class User {
private int user_id;
private String username;
private String password;
private String role;
private String status;
private List<Animals> animals; // 用户与动物是一对多关系
// getter 和 setter 方法
}
// Animals 类
public class Animals {
private int animal_id;
private String name;
private String gender; // 雄/雌
private Integer age;
private String species;
private String zone;
private User user; // 动物与用户是一对多关系（反向关联）
private List<AnimalPhoto> animalPhotos; // 动物与照片是一对多关系
// getter 和 setter 方法
}
// AnimalPhoto 类
public class AnimalPhoto {
private int photo_id;
private Animals animal; // 照片与动物是一对多关系（反向关联）
private String photo_url;
// getter 和 setter 方法
}
// AnimalTrait 类
public class AnimalTrait {
private int trait_id;
private Animals animal; // 特征与动物是一对一关系（反向关联）
private String nature; // 性格
private String favourite; // 喜好描述
// getter 和 setter 方法
}
用户 (users) 与动物 (animals) 之间是一对多关系。
动物 (animals) 与照片 (animalphotos) 之间是一对多关系。
动物 (animals) 与特征 (animaltraits) 之间是一对一关系。
这是我登录注册代码：
package com
.cxy
.Controller;
import com
.cxy
.Pojo
.User;
import com
.cxy
.Service
.UserService;
import org
.springframework
.beans
.factory
.annotation
.Autowired;
import org
.springframework
.stereotype
.Controller;
import org
.springframework
.ui
.Model;
import org
.springframework
.web
.bind
.annotation
.*;
import
javax
.servlet
.http
.HttpSession;
import
java.text
.SimpleDateFormat;
import
java.util
.Date;
@Controller
public class UserController {
@Autowired
private UserService userService;
// 显示登录页面
@GetMapping("/login")
public String login
Page(@
RequestParam(value
= "error", required
= false) String error, Model model) {
if (error !
= null) {
model
.addAttribute("error", true);
}
return "/login/login
.jsp"; // 返回登录页面
}
// 处理登录请求
@PostMapping("/login")
public String login(@
RequestParam String username, @
RequestParam String password, HttpSession session, Model model) {
User user
= userService
.login(username, password);
if (user !
= null) {
// 更新数据库中的在线状态
userService
.updateUserStatus(user
.getUserId(), "在线");
// 将用户信息存入 session
session
.setAttribute("user", user);
session
.setAttribute("username", user
.getUsername()); // 存储用户名
session
.setAttribute("role", user
.getRole()); // 存储角色
session
.setAttribute("status", "在线"); // 存储状态
session
.setAttribute("loginTime", new SimpleDateFormat("yyyy-MM-dd HH:mm:ss")
.format(new Date())); // 登录时间
return "redirect:/index
.jsp"; // 登录成功，跳转到主页
}
// 登录失败，返回登录页面并传递错误信息
model
.addAttribute("loginError", "用户名或密码错误，请重新尝试。");
return "login/login
.jsp";
}
// 显示注册页面
@GetMapping("/register")
public String register
Page() {
return "/login/register
.jsp"; // 返回注册页面
}
// 处理注册请求
@PostMapping("/register")
public String register(User user, Model model) {
if (userService
.register(user)) {
return "/login/login
.jsp"; // 注册成功，跳转到登录页面
}
model
.addAttribute("registerError", "用户名已存在"); // 用户名已存在
return "/login/register
.jsp"; // 注册失败，返回注册页面
}
// 处理退出登录
@GetMapping("/logout")
public String logout(HttpSession session) {
User user
= (User) session
.getAttribute("user");
if (user !
= null) {
userService
.updateUserStatus(user
.getUserId(), "离线");
}
session
.invalidate(); // 清除session
return "redirect:/login/login
.jsp"; // 返回登录页面
}
}
这是我实现登录注册的配置：
<?xml version
="1
.0" encoding
="UTF-8"?>
<!DOCTYPE mapper
PUBLIC "-//mybatis
.org//DTD Mapper 3
.0//EN"
"http://mybatis
.org/dtd/mybatis-3-mapper
.dtd">
<mapper namespace
="com
.cxy
.Mapper
.UserMapper">
<!-- 查询用户 -->
<select id
="findByUsername" resultType
="com
.cxy
.Pojo
.User">
SELECT * FROM users WHERE username
= #{username}
</select>
<!-- 插入新用户 -->
<insert id
="insertUser" parameterType
="com
.cxy
.Pojo
.User">
INSERT INTO users (username, password, role)
VALUES (#{username}, #{password}, #{role})
</insert>
<!-- 更新在线状态 -->
<update id
="updateStatus">
UPDATE users SET status
= #{status} WHERE user_id
= #{user_id}
</update>
</mapper>
application-dao
.xml:<?xml version
="1
.0" encoding
="UTF-8"?>
<beans xmlns
="http://www
.springframework
.org/schema/beans"
xmlns:xsi
="http://www
.w3
.org/2001/XMLSchema-instance"
xmlns:context
="http://www
.springframework
.org/schema/context"
xsi:schemaLocation
="http://www
.springframework
.org/schema/beans
http://www
.springframework
.org/schema/beans/spring-beans
.xsd
http://www
.springframework
.org/schema/context
http://www
.springframework
.org/schema/context/spring-context
.xsd">
<context:property-placeholder location
="classpath:jdbc
.properties"/>
<!-- 配置数据源 -->
<bean id
="dataSource" class
="com
.alibaba
.druid
.pool
.DruidDataSource">
<property name
="driverClassName" value
="
${jdbc
.driverClassName}"/>
<property name
="url" value
="
${jdbc
.url}"/>
<property name
="username" value
="
${jdbc
.username}"/>
<property name
="password" value
="
${jdbc
.password}"/>
</bean>
<bean id
="sqlSessionFactory"
class
="org
.mybatis
.spring
.SqlSessionFactoryBean">
<property name
="dataSource" ref
="dataSource"/>
</bean>
<bean class
="org
.mybatis
.spring
.mapper
.MapperScannerConfigurer">
<property name
="basePackage" value
="com
.cxy
.Mapper"/>
</bean>
</beans>
application-service
.xml:<?xml version
="1
.0" encoding
="UTF-8"?>
<beans xmlns
="http://www
.springframework
.org/schema/beans"
xmlns:xsi
="http://www
.w3
.org/2001/XMLSchema-instance"
xmlns:context
="http://www
.springframework
.org/schema/context"
xsi:schemaLocation
="http://www
.springframework
.org/schema/beans
http://www
.springframework
.org/schema/beans/spring-beans
.xsd
http://www
.springframework
.org/schema/context
http://www
.springframework
.org/schema/context/spring-context
.xsd">
<!-- 配置组件扫描 -->
<context:component-scan base-package
="com
.cxy
.Service"/>
</beans>
spring-mvc
.xml:<?xml version
="1
.0" encoding
="UTF-8"?>
<beans xmlns
="http://www
.springframework
.org/schema/beans"
xmlns:context
="http://www
.springframework
.org/schema/context"
xmlns:mvc
="http://www
.springframework
.org/schema/mvc"
xmlns:xsi
="http://www
.w3
.org/2001/XMLSchema-instance"
xsi:schemaLocation
="http://www
.springframework
.org/schema/beans
http://www
.springframework
.org/schema/beans/spring-beans
.xsd
http://www
.springframework
.org/schema/mvc
http://www
.springframework
.org/schema/mvc/spring-mvc
.xsd
http://www
.springframework
.org/schema/context
http://www
.springframework
.org/schema/context/spring-context
.xsd">
<context:component-scan base-package
="com
.cxy
.Controller"/>
<mvc:annotation-driven/>
<mvc:resources mapping
="/css/**" location
="/css/" />
</beans>
web
.xml:<?xml version
="1
.0" encoding
="UTF-8"?>
<web-app xmlns
="http://xmlns
.jcp
.org/xml/ns/
javaee"
xmlns:xsi
="http://www
.w3
.org/2001/XMLSchema-instance"
xsi:schemaLocation
="http://xmlns
.jcp
.org/xml/ns/
javaee http://xmlns
.jcp
.org/xml/ns/
javaee/web-app_4_0
.xsd"
version
="4
.0">
<filter>
<filter-name>encodingFilter</filter-name>
<filter-class>org
.springframework
.web
.filter
.CharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
<init-param>
<param-name>forceEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>encodingFilter</filter-name>
<url-
pattern>/*</url-
pattern>
</filter-mapping>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:application-*
.xml</param-value>
</context-param>
<listener>
<listener-class>org
.springframework
.web
.context
.ContextLoaderListener</listener-class>
</listener>
<!-- Spring DispatcherServlet -->
<servlet>
<servlet-name>Dispatcher</servlet-name>
<servlet-class>
org
.springframework
.web
.servlet
.DispatcherServlet
</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring-mvc
.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<!-- 配置 Spring DispatcherServlet 映射 -->
<servlet-mapping>
<servlet-name>Dispatcher</servlet-name>
<url-
pattern>/</url-
pattern>
</servlet-mapping>
index
.jsp：
<%@
page language
="
java" contentType
="text/html; charset
=UTF-8"
pageEncoding
="UTF-8"%>
<%@
page import
="
java.util
.Date" %>
<%@ taglib uri
="http://
java.sun
.com/jsp/jstl/core" prefix
="c" %>
<!DOCTYPE html>
<html>
<head>
<title>动物园数字档案管理系统</title>
<link rel
="stylesheet" type
="text/css"
href="
${
pageContext.request.contextPath}/css/index
.css">
</head>
<body>
<!-- 顶部导航栏 -->
<header>
<div class
="logo">
<img src
="<%
= request.get
ContextPath() %>/images/zoo-logo
.png" alt
="Zoo Logo">
</div>
<nav>
<ul>
<li><a
href="
${
pageContext.request.contextPath}/index
.jsp">首页</a></li>
<li><a
href="
${
pageContext.request.contextPath}/animal
.jsp">动物信息</a></li>
<li><a
href="
${
pageContext.request.contextPath}/activities
.jsp">活动预约</a></li>
<li><a
href="
${
pageContext.request.contextPath}/forum
.jsp">用户交流</a></li>
<%
String username
= (String) session
.getAttribute("username");
String userRole
= (String) session
.getAttribute("role");
String userStatus
= (String) session
.getAttribute("status");
if ("饲养者"
.equals(userRole)) {
out
.println("<li><a
href='" +
request.get
ContextPath() + "/animal/list'>我的动物</a></li>");
} else if ("管理员"
.equals(userRole)) {
out
.println("<li><a
href='" +
request.get
ContextPath() + "/animal/list'>所有动物</a></li>");
}
if (username
== null) {
out
.println("<li><a
href='" +
request.get
ContextPath() + "/login/login
.jsp'>登录/注册</a></li>");
} else {
out
.println("<li><a
href='" +
request.get
ContextPath() + "/logout'>退出登录</a></li>");
out
.println("<li><span>登录时间: " + session
.getAttribute("loginTime") + "</span></li>");
}
%>
</ul>
</nav>
</header>
<!-- 主要内容 -->
<div class
="content">
<%
if ("游客"
.equals(userRole)) {
%>
<div class
="animal-search">
<h2>探索动物世界</h2>
<input type
="text" placeholder
="搜索动物
...">
<button onclick
="window
.location
.href='
${
pageContext.request.contextPath}/activities
.jsp'">立即预约活动</button>
</div>
<%
} else if ("饲养者"
.equals(userRole)) {
%>
<div class
="manage-animals">
<h2>饲养者面板</h2>
<p>欢迎，<%
= username %>！您当前状态：<%
= userStatus %></p>
</div>
<%
} else if ("管理员"
.equals(userRole)) {
%>
<div class
="admin-panel">
<h2>管理员面板</h2>
<p>欢迎，<%
= username %>！您当前状态：<%
= userStatus %></p>
</div>
<%
} else {
%>
<div class
="welcome-message">
<h2>欢迎来到动物园数字档案管理系统</h2>
<p>请登录或注册以获取更多功能。</p>
<button onclick
="window
.location
.href='
${
pageContext.request.contextPath}/login/login
.jsp'">登录/注册</button>
</div>
<%
}
%>
</div>
<!-- 底部信息栏 -->
<footer>
<div class
="footer-content">
<p>©2023 动物园数字档案管理系统</p>
<p>联系我们：info@zoodatabase
.com</p>
</div>
</footer>
</body>
</html>
add_animal
.jsp:
<%@
page language
="
java" contentType
="text/html; charset
=UTF-8"
pageEncoding
="UTF-8"%>
<%@ taglib uri
="http://
java.sun
.com/jsp/jstl/core" prefix
="c"%>
<!DOCTYPE html>
<html>
<head>
<title>添加动物 - 动物园数字档案管理系统</title>
<link rel
="stylesheet" type
="text/css"
href="
${
pageContext.request.contextPath}/css/animal_form
.css">
</head>
<body>
<jsp:include
page="/header
.jsp"/>
<div class
="container">
<h1>添加新动物</h1>
<form
action="
${
pageContext.request.contextPath}/animal/add" method
="post" enctype
="multipart/form-data">
<div class
="form-group">
<label for
="name">动物名称:</label>
<input type
="text" id
="name" name
="name" required>
</div>
<div class
="form-group">
<label for
="species">种类:</label>
<input type
="text" id
="species" name
="species" required>
</div>
<div class
="form-group">
<label for
="gender">性别:</label>
<select id
="gender" name
="gender" required>
<option value
="">请选择</option>
<option value
="雄">雄</option>
<option value
="雌">雌</option>
</select>
</div>
<div class
="form-group">
<label for
="age">年龄:</label>
<input type
="number" id
="age" name
="age" min
="0" required>
</div>
<div class
="form-group">
<label for
="zone">位置:</label>
<input type
="text" id
="zone" name
="zone" required>
</div>
<div class
="form-group">
<label for
="photo_url">上传照片:</label>
<input type
="file" id
="photo_url" name
="photo_url" multiple>
</div>
<div class
="form-group">
<label for
="nature">性格:</label>
<input type
="text" id
="nature" name
="nature" required>
</div>
<div class
="form-group">
<label for
="favourite">喜好描述:</label>
<textarea id
="favourite" name
="favourite"></textarea>
</div>
<div class
="form-
actions">
<button type
="submit" class
="btn btn-primary">添加动物</button>
<a
href="
${
pageContext.request.contextPath}/animal/list" class
="btn btn-secondary">取消</a>
</div>
</form>
</div>
注意：查询查的是动物完整的信息（包括图片），添加也要添加动物完整的信息，可以对数据库插入动物图片。这需要对表进行关联。
请根据我的配置和我给出的添加动物页面add_aniaml
.jsp，用
javaee的ssm整合框架实现饲养者和管理者对动物的增删改查，，以及写出对应的jsp页面：在/animal/目录内，并修改index页面。包括(controller接口,mapper接口,service,serviceimpl和Mapper新配置)。其中饲养者登录时：显示我的动物导航栏，点击进入页面只能对自己添加的动物进行修改数据和删除，也可以在该页面添加新的动物。而管理者登录时：显示所有动物导航栏，点击进入页面，可以对全部动物信息增删改。饲养者和管理者可以对动物所有信息进行写入。
本文展示了如何在Struts框架中使用动态方法调用和通配符映射实现URL路由，通过示例代码演示了不同场景下的应用。
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