java项目之大学生校园兼职系统（ssm+mysql+jsp）

**大学生校园兼职系统**

**系统概述**

大学生校园兼职系统是一款基于Java的SSM框架（Spring + Spring MVC + MyBatis）开发的校园兼职平台。该系统旨在为大学生提供一个兼职信息发布和管理的平台，方便学生找到兼职机会，并且可以帮助学校管理兼职信息。

**系统功能**

1. **用户注册和登录**
* 用户可以注册成为兼职者或雇主* 用户可以登录后查看自己的信息和历史兼职记录2. **兼职信息发布**
* 兼职者可以发布兼职信息，包括兼职名称、描述、要求等* 雇主可以浏览兼职信息并选择感兴趣的兼职3. **兼职申请和管理**
* 兼职者可以申请成为兼职者或雇主* 雇主可以查看兼职者的申请状态，并且可以同意或拒绝兼职者的申请4. **兼职评价和反馈**
* 兼职者和雇主都可以对兼职进行评价和反馈**系统设计**

###1.数据库设计

sqlCREATE TABLE user (
 id INT PRIMARY KEY AUTO_INCREMENT,
 username VARCHAR(255) NOT NULL,
 password VARCHAR(255) NOT NULL,
 role VARCHAR(255) NOT NULL);

CREATE TABLE job (
 id INT PRIMARY KEY AUTO_INCREMENT,
 title VARCHAR(255) NOT NULL,
 description TEXT NOT NULL,
 requirements TEXT NOT NULL,
 user_id INT NOT NULL,
 FOREIGN KEY (user_id) REFERENCES user(id)
);

CREATE TABLE application (
 id INT PRIMARY KEY AUTO_INCREMENT,
 job_id INT NOT NULL,
 user_id INT NOT NULL,
 status VARCHAR(255) NOT NULL,
 FOREIGN KEY (job_id) REFERENCES job(id),
 FOREIGN KEY (user_id) REFERENCES user(id)
);

###2.Java类设计#### User.java

javapublic class User {
 private int id;
 private String username;
 private String password;
 private String role;

 // getter和setter方法}

#### Job.java

javapublic class Job {
 private int id;
 private String title;
 private String description;
 private String requirements;
 private User user;

 // getter和setter方法}

#### Application.java

javapublic class Application {
 private int id;
 private Job job;
 private User user;
 private String status;

 // getter和setter方法}

###3.控制器设计#### UserController.java

java@Controller@RequestMapping("/user")
public class UserController {
 @Autowired private UserService userService;

 @GetMapping("/register")
 public String register() {
 return "register";
 }

 @PostMapping("/register")
 public String register(@Valid User user, BindingResult bindingResult) {
 if (bindingResult.hasErrors()) {
 return "register";
 }
 userService.register(user);
 return "redirect:/user/login";
 }

 @GetMapping("/login")
 public String login() {
 return "login";
 }

 @PostMapping("/login")
 public String login(@Valid User user, BindingResult bindingResult) {
 if (bindingResult.hasErrors()) {
 return "login";
 }
 userService.login(user);
 return "redirect:/user/profile";
 }
}

#### JobController.java

java@Controller@RequestMapping("/job")
public class JobController {
 @Autowired private JobService jobService;

 @GetMapping("/list")
 public String list() {
 return "job/list";
 }

 @PostMapping("/publish")
 public String publish(@Valid Job job, BindingResult bindingResult) {
 if (bindingResult.hasErrors()) {
 return "job/publish";
 }
 jobService.publish(job);
 return "redirect:/job/list";
 }
}

#### ApplicationController.java

java@Controller@RequestMapping("/application")
public class ApplicationController {
 @Autowired private ApplicationService applicationService;

 @GetMapping("/list")
 public String list() {
 return "application/list";
 }

 @PostMapping("/apply")
 public String apply(@Valid Application application, BindingResult bindingResult) {
 if (bindingResult.hasErrors()) {
 return "application/apply";
 }
 applicationService.apply(application);
 return "redirect:/application/list";
 }
}

###4.服务层设计#### UserService.java

java@Servicepublic class UserService {
 @Autowired private UserMapper userMapper;

 public void register(User user) {
 userMapper.insert(user);
 }

 public void login(User user) {
 // TODO: implement login logic }
}

#### JobService.java

java@Servicepublic class JobService {
 @Autowired private JobMapper jobMapper;

 public void publish(Job job) {
 jobMapper.insert(job);
 }
}

#### ApplicationService.java

java@Servicepublic class ApplicationService {
 @Autowired private ApplicationMapper applicationMapper;

 public void apply(Application application) {
 applicationMapper.insert(application);
 }
}

###5.mapper层设计#### UserMapper.java

java@Mapperpublic interface UserMapper {
 void insert(User user);
}

#### JobMapper.java

java@Mapperpublic interface JobMapper {
 void insert(Job job);
}

#### ApplicationMapper.java

java@Mapperpublic interface ApplicationMapper {
 void insert(Application application);
}

###6.配置文件#### spring.xml

xml<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns=" /> xmlns:xsi=" /> xsi:schemaLocation="  />
 <!-- 配置数据源 -->
 <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
 <property name="driverClass" value="com.mysql.jdbc.Driver"/>
 <property name="jdbcUrl" value="jdbc:mysql://localhost:3306/test"/>
 <property name="user" value="root"/>
 <property name="password" value="123456"/>
 </bean>

 <!-- 配置MyBatis -->
 <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
 <property name="dataSource" ref="dataSource"/>
 <property name="configLocation" value="classpath:mybatis-config.xml"/>
 </bean>

 <!-- 配置扫描器 -->
 <bean class="org.springframework.context.annotation.ComponentScan"
 base-package="com.example"/>

</beans>

#### mybatis-config.xml

xml<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config3.0//EN"
 " /><configuration>

 <!-- 配置环境 -->
 <environments default="development">
 <environment id="development">
 <transactionManager type="JDBC"/>
 <dataSource type="POOLED">
 <property name="driver" value="com.mysql.jdbc.Driver"/>
 <property name="url" value="jdbc:mysql://localhost:3306/test"/>
 <property name="username" value="root"/>
 <property name="password" value="123456"/>
 </dataSource>
 </environment>
 </environments>

</configuration>

###7.启动类#### Application.java

java@SpringBootApplicationpublic class Application {
 public static void main(String[] args) {
 SpringApplication.run(Application.class, args);
 }
}

以上就是大学生校园兼职系统的设计和实现。