员工管理系统

一、项目搭建
- 1.1 初始化项目依赖
二、ems的前端
三、ems的后端
- config
- pojo
- Controller
- server
- server.impl
- mapper
- mapper.xml
结果演示

一、项目搭建

1.1 初始化项目依赖

pom.xml

    <parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>2.7.2</version><relativePath/> <!-- lookup parent from repository --></parent><properties><maven.compiler.source>11</maven.compiler.source><maven.compiler.target>11</maven.compiler.target><java.version>11</java.version></properties><dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId><scope>test</scope></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-thymeleaf</artifactId></dependency><dependency><groupId>org.mybatis.spring.boot</groupId><artifactId>mybatis-spring-boot-starter</artifactId><version>2.1.4</version></dependency><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId><version>8.0.25</version></dependency><dependency><groupId>org.mybatis</groupId><artifactId>mybatis</artifactId><version>3.5.7</version></dependency><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId></dependency><dependency><groupId>log4j</groupId><artifactId>log4j</artifactId><version>1.2.14</version></dependency><dependency><groupId>com.alibaba</groupId><artifactId>druid-spring-boot-starter</artifactId><version>1.2.5</version></dependency></dependencies>

banner.txt

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▂▂╱┈ ▕▂▂▂▏
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by coffeeMao

application.properties

server.port=80
#spring.favicon.enabled=false
spring.thymeleaf.cache=false
#server.servlet.context-path=/mao
spring.messages.basename=i18n.login
spring.mvc.format.date=yyyy-MM-hhspring.datasource.username=root
spring.datasource.password=123456
spring.datasource.url=jdbc:mysql://localhost:3306/ems?serverTimezone-UTC&useUnicode=true&characterEncoding=utf-8
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
spring.datasource.type=com.alibaba.druid.pool.DruidDataSourcemybatis.type-aliases-package=com.mao.entity
mybatis.mapper-locations=classpath:mapper/*.xml

这里注意项目使用到了国际化功能，所以文件编码统一设置为UTF-8

二、ems的前端

common公共页面侧边栏 + 导航栏的提取

<!DOCTYPE html>
<html lang="en"><!--头部导航栏--><nav class="navbar navbar-dark sticky-top bg-dark flex-md-nowrap p-0" th:fragment="topbar"><a class="navbar-brand col-sm-3 col-md-2 mr-0" th:href="@{/user/logout}">[[${session.loginUser}]]</a>
<!--  <input class="form-control form-control-dark w-100" name="id" type="text" placeholder="Search" aria-label="Search">--><form class="form-control form-control-dark w-100" th:action="@{/query}" method="get"><input class="form-control-dark" name="id" type="text" placeholder="Search" aria-label="Search"><input type="submit"  value="查询"></form><ul class="navbar-nav px-3"><li class="nav-item text-nowrap"><a class="nav-link" th:href="@{/user/logout}">注销</a></li></ul>
</nav><!--侧边导航栏--><nav class="col-md-2 d-none d-md-block bg-light sidebar" th:fragment="sidebar"><div class="sidebar-sticky"><ul class="nav flex-column"><li class="nav-item"><a th:class="${active=='main.html' ? 'nav-link active' : 'nav-link'}" th:href="@{/index.html}"><svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-home"><path d="M3 9l9-7 9 7v11a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2z"></path><polyline points="9 22 9 12 15 12 15 22"></polyline></svg>主页<span class="sr-only">(current)</span></a></li><li class="nav-item"><a th:class="${active=='list.html' ? 'nav-link active' : 'nav-link'}" th:href="@{/emps}"><svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-users"><path d="M17 21v-2a4 4 0 0 0-4-4H5a4 4 0 0 0-4 4v2"></path><circle cx="9" cy="7" r="4"></circle><path d="M23 21v-2a4 4 0 0 0-3-3.87"></path><path d="M16 3.13a4 4 0 0 1 0 7.75"></path></svg>员工管理</a></li></ul></div>
</nav>
</html>

index.html 登录界面

<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no"><meta name="description" content=""><meta name="author" content=""><title>Signin Template for Bootstrap</title><!-- Bootstrap core CSS --><link th:href="@{/css/bootstrap.min.css}" rel="stylesheet"><!-- Custom styles for this template --><link th:href="@{/css/signin.css}" rel="stylesheet"></head><body class="text-center"><form class="form-signin" th:action="@{/user/login}"><img class="mb-4" th:src="@{/img/bootstrap-solid.svg}" alt="" width="72" height="72"><h1 class="h3 mb-3 font-weight-normal" th:text="#{login.btn}">Please sign in</h1><p style="color: red" th:text="${msg}" th:if="${not #strings.isEmpty(msg)}"></p>
<!--         <label class="sr-only" th:text="#{login.username}">Username</label>--><input type="text" name="username" class="form-control" th:placeholder="#{login.username}" required="" autofocus="">
<!--         <label class="sr-only"th:text="#{login.password}">Password</label>--><input type="password" name="password" class="form-control" th:placeholder="#{login.password}" required=""><div class="checkbox mb-3"><label><input type="checkbox" value="remember-me"> [[#{login.remember}]]</label></div><button class="btn btn-lg btn-primary btn-block" type="submit">[[#{login.btn}]]</button><p class="mt-5 mb-3 text-muted">© 2022-至今</p><a class="btn btn-sm" th:href="@{/index.html(mkt='zh-CN')}">中文</a><a class="btn btn-sm" th:href="@{/index.html(mkt='en-US')}">English</a></form></body></html>

404错误页面，替换掉公共部分，定制自己的404页面

 <body><div th:replace="~{commons/commons::topbar}"></div><div class="container-fluid"><div class="row"><div th:replace="~{commons/commons::sidebar(active='list.html')}"></div><main role="main" class="col-md-9 ml-sm-auto col-lg-10 pt-3 px-4"><h1>404</h1></main></div></div>

list.html员工展示

<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no"><meta name="description" content=""><meta name="author" content=""><title>Dashboard Template for Bootstrap</title><!-- Bootstrap core CSS --><link th:href="@{/css/bootstrap.min.css}" rel="stylesheet"><!-- Custom styles for this template --><link th:href="@{/css/dashboard.css}" rel="stylesheet"><style type="text/css">/* Chart.js */@-webkit-keyframes chartjs-render-animation {from {opacity: 0.99}to {opacity: 1}}@keyframes chartjs-render-animation {from {opacity: 0.99}to {opacity: 1}}.chartjs-render-monitor {-webkit-animation: chartjs-render-animation 0.001s;animation: chartjs-render-animation 0.001s;}</style></head><body>
<!-- 头部导航栏--><div th:replace="~{commons/commons::topbar}"></div><div class="container-fluid"><div class="row">
<!--             侧边栏--><div th:replace="~{commons/commons::sidebar(active='list.html')}"></div><main role="main" class="col-md-9 ml-sm-auto col-lg-10 pt-3 px-4">
<!--                 点过去是get请求--><h2><a class="btn btn-sm btn-success" th:href="@{/emp}">添加员工</a></h2>
<!--                 <h2><a class="btn btn-sm btn-success" th:href="@{/emp}">添加员工</a></h2>--><div class="table-responsive"><table class="table table-striped table-sm"><thead><tr><th>id</th><th>姓名</th><th>电子邮箱</th><th>性别</th><th>所属部门</th><th>出生日期</th></tr></thead><tbody><tr th:each="emp:${emps}"><td th:text="${emp.getId()}"></td><td th:text="${emp.getLastName()}"></td><td th:text="${emp.getEmail()}"></td><td th:text="${emp.getGender() == 0 ? '女' : '男'}"></td><td th:text="${emp.department.getDepartmentName()}"></td><td th:text="${#dates.format(emp.getBirth(),'yyyy-MM-dd')}"></td><td><a class="btn btn-sm btn-primary" th:href="@{/emp/}+${emp.getId()}">编辑</a><a class="btn btn-sm btn-danger" th:href="@{/delemp/}+${emp.getId()}">删除</a></td></tr></tbody></table></div></main></div></div><!-- Bootstrap core JavaScript================================================== --><!-- Placed at the end of the document so the pages load faster --><script type="text/javascript" src="asserts/js/jquery-3.2.1.slim.min.js"></script><script type="text/javascript" src="asserts/js/popper.min.js"></script><script type="text/javascript" src="asserts/js/bootstrap.min.js"></script><!-- Icons --><script type="text/javascript" src="asserts/js/feather.min.js"></script><script>feather.replace()</script><!-- Graphs --><script type="text/javascript" src="asserts/js/Chart.min.js"></script><script>var ctx = document.getElementById("myChart");var myChart = new Chart(ctx, {type: 'line',data: {labels: ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"],datasets: [{data: [15339, 21345, 18483, 24003, 23489, 24092, 12034],lineTension: 0,backgroundColor: 'transparent',borderColor: '#007bff',borderWidth: 4,pointBackgroundColor: '#007bff'}]},options: {scales: {yAxes: [{ticks: {beginAtZero: false}}]},legend: {display: false,}}});</script></body></html>

add.html员工修改页面

<!--  头部导航栏--><div th:replace="~{commons/commons::topbar}"></div><div class="container-fluid"><div class="row">
<!--             侧边栏--><div th:replace="~{commons/commons::sidebar(active='list.html')}"></div><main role="main" class="col-md-9 ml-sm-auto col-lg-10 pt-3 px-4"><form th:action="@{/emp}" method="post"><div class="form-group"><label>姓名</label><input type="text" name="lastName" class="form-control" placeholder="姓名"></div><div class="form-group"><label>电子邮箱</label><input type="email" name="email" class="form-control" placeholder="邮箱"></div><div class="form-group"><label>性别</label><br><div class="form-check form-check-inline"><label class="form-check-label"><input class="form-check-input" type="radio" checked name="gender" value="1">男</label></div><div class="form-check form-check-inline"><label class="form-check-label"><input class="form-check-input" type="radio" name="gender" value="0">女</label></div></div><div class="form-group"><label>所属部门</label><select class="form-control" name="department.id"><option value="none" selected disabled hidden>------</option><option th:each="department:${departments}" th:text="${department.getDepartmentName()}" th:value="${department.getId()}"></option></select></div><div class="form-group"><label>出生日期</label>
<!--                         <input type="text" name="birth" class="form-control" placeholder="birth:yyyy/MM/dd">--><input type="date" name="birth" class="form-control"></div><button type="submit" class="btn btn-primary">添加</button></form></main></div></div>

update.html修改员工的页面

<!--  头部导航栏--><div th:replace="~{commons/commons::topbar}"></div><div class="container-fluid"><div class="row">
<!--             侧边栏--><div th:replace="~{commons/commons::sidebar(active='list.html')}"></div><main role="main" class="col-md-9 ml-sm-auto col-lg-10 pt-3 px-4"><form th:action="@{/updateEmp}" method="post"><input type="hidden" name="id" th:value="${emp.getId()}"><div class="form-group"><label>姓名</label><input th:value="${emp.getLastName()}" name="lastName" class="form-control" placeholder="姓名"></div><div class="form-group"><label>电子邮箱</label><input th:value="${emp.getEmail()}" name="email" class="form-control" placeholder="邮箱"></div><div class="form-group"><label>性别</label><br/><div class="form-check form-check-inline"><label class="form-check-label"><input th:checked= "${emp.getGender()==1}" class="form-check-input" type="radio" name="gender" value="1">男</label></div><div class="form-check form-check-inline"><label class="form-check-label"><input th:checked= "${emp.getGender()==0}" class="form-check-input" type="radio" name="gender" value="0">女</label></div></div><div class="form-group"><label>所属部门</label><!--注意这里的name是department.id，因为传入的参数为id--><select class="form-control" name="department.id"><option th:selected="${department.getId()==emp.getDepartment().getId()}" th:each="department:${departments}" th:text="${department.getDepartmentName()}" th:value="${department.getId()}"></option></select></div><div class="form-group"><label>出生日期</label><input th:value="${#dates.format(emp.getBirth(),'yyyy-MM-dd')}" name="birth" type="date" class="form-control"></div><button type="submit" class="btn btn-primary">修改</button></form></main></div></div>

query.html查询员工的页面

<!--  头部导航栏-->
<div th:replace="~{commons/commons::topbar}"></div><div class="container-fluid"><div class="row"><!--               侧边栏--><div th:replace="~{commons/commons::sidebar(active='list.html')}"></div><main role="main" class="col-md-9 ml-sm-auto col-lg-10 pt-3 px-4"><div class="table-responsive"><table class="table table-striped table-sm"><thead><tr><th>id</th><th>姓名</th><th>电子邮箱</th><th>性别</th><th>所属部门</th><th>出生日期</th></tr></thead><tbody><tr th:each="emp:${emp}"><td th:text="${emp.getId()}"></td><td th:text="${emp.getLastName()}"></td><td th:text="${emp.getEmail()}"></td><td th:text="${emp.getGender() == 0 ? '女' : '男'}"></td>
<!--                     后端SQL 查询出来的是 id--><td th:text="${emp.department.getDepartmentName()}"></td><td th:text="${#dates.format(emp.getBirth(),'yyyy-MM-dd')}"></td><td><a class="btn btn-sm btn-primary" th:href="@{/emp/}+${emp.getId()}">编辑</a><a class="btn btn-sm btn-danger" th:href="@{/delemp/}+${emp.getId()}">删除</a></td></tr></tbody></table></div></main></div>
</div>

国际化文件就是建立一个资源包，login_en_US.properties，login_zh_CN.properties，login.properties三个资源文件，自己翻译好写入文件就行

三、ems的后端

config

LoginHandlerInterceptor.java 手动的登录拦截器

public class LoginHandlerInterceptor implements HandlerInterceptor {@Overridepublic boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {Object loginUser = request.getSession().getAttribute("loginUser");if (loginUser == null){request.setAttribute("msg","没有权限，请先登录!");request.getRequestDispatcher("/index.html").forward(request,response);return false;}else {return true;}}
}

MyLocaleResolver.java 自定义的国际化处理文件

public class MyLocaleResolver implements LocaleResolver {@Overridepublic Locale resolveLocale(HttpServletRequest request) {String language = request.getParameter("mkt");Locale locale = Locale.getDefault();if (!StringUtils.isEmpty(language)){String[] split = language.split("-");locale= new Locale(split[0], split[1]);}return locale;}@Overridepublic void setLocale(HttpServletRequest request, HttpServletResponse response, Locale locale) {}
}

MyMvcConfig.java 自定义的MVC配置，添加了视图控制器自定义的拦截器，国际化对象

@Configuration
public class MyMvcConfig implements WebMvcConfigurer {@Overridepublic void addViewControllers(ViewControllerRegistry registry) {registry.addViewController("/").setViewName("index");registry.addViewController("/index.html").setViewName("index");registry.addViewController("/main.html").setViewName("dashboard");}@Beanpublic LocaleResolver localeResolver(){return new MyLocaleResolver();}@Overridepublic void addInterceptors(InterceptorRegistry registry) {registry.addInterceptor(new LoginHandlerInterceptor()).addPathPatterns("/**").excludePathPatterns("/index.html","/","/img/*","/user/login","/css/*","/js/**");}
}

pojo

Department.java

public class Department {private Integer id;private String departmentName;public String getDepartmentName() {return departmentName;}}

Employee.java

public class Employee {private Integer id;private String lastName;private String email;private Integer gender;private Department department;@DateTimeFormat(pattern = "yyyy-MM-dd")private Date birth;}

Controller

LoginController.java

@Controller
public class LoginController {@RequestMapping("/user/login")public String login(@RequestParam("username") String username,@RequestParam("password") String password,Model model,HttpSession session){if (!StringUtils.isEmpty(username) && password.equals("123456")){session.setAttribute("loginUser",username);return "redirect:/main.html";}else {model.addAttribute("msg", "用户名或者密码错误!");return "index";}}@RequestMapping("/user/logout")public String login(HttpSession session){session.invalidate();return "redirect:/index.html";}
}

EmployeeController.java 员工控制器，负责员工的CRU的控制

@Controller
public class EmployeeController {@Autowiredprivate DepartmentService departmentService;@Autowiredprivate EmployeeService employeeService;// 查询所有员工之后进行展示@RequestMapping("/emps")public String list(Model model){Collection<Employee> employees = employeeService.getAll();model.addAttribute("emps",employees);return "emp/list";}@GetMapping("/emp")public String addPage(Model model){Collection<Department> departments = departmentService.getDepartments();model.addAttribute("departments", departments);return "emp/add";}@PostMapping("/emp")public String addEmp(Employee employee){// 调用底层业务方法保存员工信息employeeService.addEmployee(employee);System.out.println(employee.toString());// 重定向到/emps,刷新列表,返回到list页面return "redirect:/emps";}@GetMapping("/emp/{id}")public String toUpdateEmp(@PathVariable("id")Integer id, Model model){Employee employee = employeeService.getEmployeeById(id);model.addAttribute("emp",employee);//查出所有部门的信息Collection<Department> departments = departmentService.getDepartments();model.addAttribute("departments", departments);return "emp/update";}@PostMapping("/updateEmp")public String updateEmp(Employee employee){employeeService.update(employee);return "redirect:/emps";}// 删除员工@GetMapping("/delemp/{id}")public String deleteEmp(@PathVariable("id") int id){employeeService.remove(id);return "redirect:/emps";}@GetMapping("/query")public String queryPage(@RequestParam( required = false,value = "id") Integer id, Model model){if (employeeService.queryIds().contains(id)){Employee employee = employeeService.getEmployeeById(id);model.addAttribute("emp",employee);return "emp/query";}else{return "redirect:/emps";}}
}

server

public interface EmployeeService {Collection<Employee> getAll();void update(Employee employee);void addEmployee(Employee employee);Employee getEmployeeById(Integer id);void remove(Integer id);List<Integer> queryIds();
}public interface DepartmentService {Collection<Department> getDepartments();Department getDepartmentById(Integer id);
}

server.impl

@Service
public class DepartmentServiceImpl implements DepartmentService {@Autowiredprivate DepartmentMapper departmentMapper;@Overridepublic Collection<Department> getDepartments(){return departmentMapper.getDepartments();}@Overridepublic Department getDepartmentById(Integer id){return departmentMapper.getDepartmentById(id);}
}@Service
public class EmployeeServiceImpl implements EmployeeService {@Autowiredprivate EmployeeMapper employeeMapper;@Overridepublic Collection<Employee> getAll(){return employeeMapper.getAll();}@Overridepublic void update(Employee employee){employeeMapper.update(employee);}@Overridepublic void addEmployee(Employee employee){employeeMapper.addEmployee(employee);}@Overridepublic Employee getEmployeeById(Integer id){return employeeMapper.getEmployeeById(id);}@Overridepublic void remove(Integer id){employeeMapper.remove(id);}@Overridepublic List<Integer> queryIds(){return employeeMapper.queryIds();}
}

mapper

DepartmentMapper.java

@Mapper
@Repository
public interface DepartmentMapper {/*** 获取全部的部门* @return*/Collection<Department> getDepartments();/*** 根据 id 获取部门* @param id* @return*/Department  getDepartmentById(Integer id);
}

EmployeeMapper.java

@Mapper
@Repository
public interface EmployeeMapper {void update(Employee employee);void addEmployee(Employee employee);/*** 查询所有的员工* @return*/Collection<Employee> getAll();Employee getEmployeeById(Integer id);void remove(Integer id);List<Integer> queryIds();
}

mapper.xml

DepartmentMapper.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapperPUBLIC "-//mybatis.org//DTD Mapper 3.0//EN""http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.mao.mapper.DepartmentMapper"><select id="getDepartments" resultType="com.mao.entity.Department">select * from department;</select><select id="getDepartmentById" resultType="com.mao.entity.Department">select * from department where id=#{id};</select></mapper>

EmployeeMapper.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapperPUBLIC "-//mybatis.org//DTD Mapper 3.0//EN""http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<!--suppress MybatisXMapperXmlInspection -->
<mapper namespace="com.mao.mapper.EmployeeMapper"><resultMap id="EmployeeResultMap" type="Employee"><id property="id" column="id"/><result property="lastName" column="lastname"/><result property="email" column="email"/><result property="gender" column="gender"/><result property="department.id" column="departmentId"/><result property="department.departmentName" column="departmentName"/><result property="birth" column="birth"/></resultMap><select id="getAll" resultMap="EmployeeResultMap">SELECT * FROM employee,department WHERE employee.departmentId=department.id and employee.deleted = 0;</select><!-- 增加员工 --><insert id="addEmployee" parameterType="Employee">INSERT INTO employee (lastname,email,gender,departmentId,birth) values ( #{lastName},#{email},#{gender},#{department.id},#{birth})</insert><!-- 通过员工id获得员工信息 联表查询  SELECT * FROM employee 查出来只是 id,联表 将id 转 name--><select id="getEmployeeById" parameterType="int" resultMap="EmployeeResultMap">SELECT * FROM employee, department WHERE employee.id=#{id} and employee.departmentId=department.id</select><select id="queryIds" resultType="java.lang.Integer">select id from employee where deleted = 0;</select><!-- 更新员工 --><update id="update" parameterType="Employee">UPDATE employee<set><if test="lastName != null">lastname = #{lastName},</if><if test="email != null">email = #{email},</if><if test="gender != null">gender = #{gender},</if><if test="department.id != null">departmentId = #{department.id},</if><if test="birth != null">birth = #{birth},</if></set><where>id=#{id}</where></update><!-- 删除员工 --><update id="remove" parameterType="Employee">update employee set deleted = 1 where id=#{id};</update>
</mapper>

结果演示

学习网址链接
https://www.bilibili.com/video/BV1PE411i7CV?p=20

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ems-员工管理系统