这篇的主要目的是锻炼使用Result风格的接口开发。数据是假数据(并未真正连接到数据库)、页面使用BootStrap大致构建一下(不至于那么丑)
项目地址:F:\workspace\SpringMVC代码\SpringMVC-rest
项目的搭建过程、如何配置Tomcat过程略、改专栏系列之前有些。此处不做赘述
1、项目结构
2、源码
2.1、web.xml文件
<?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">
<!--配置过滤器编码-->
<filter>
<filter-name>CharacterEncodingFilter</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>forceResponseEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>CharacterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<filter>
<filter-name>HiddenHttpMethodFilter</filter-name>
<filter-class>org.springframework.web.filter.HiddenHttpMethodFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>HiddenHttpMethodFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!-- 配置SpringMVC的前端控制器,对浏览器发送的请求统一进行处理 -->
<servlet>
<servlet-name>springMVC</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!-- 通过初始化参数指定SpringMVC配置文件的位置和名称 -->
<init-param>
<!-- contextConfigLocation为固定值 -->
<param-name>contextConfigLocation</param-name>
<!-- 使用classpath:表示从类路径查找配置文件,例如maven工程中的
src/main/resources -->
<param-value>classpath:springMVC.xml</param-value>
</init-param>
<!--
作为框架的核心组件,在启动过程中有大量的初始化操作要做
而这些操作放在第一次请求时才执行会严重影响访问速度
因此需要通过此标签将启动控制DispatcherServlet的初始化时间提前到服务器启动时
-->
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springMVC</servlet-name>
<!--
设置springMVC的核心控制器所能处理的请求的请求路径
/所匹配的请求可以是/login或.html或.js或.css方式的请求路径
但是/不能匹配.jsp请求路径的请求
-->
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
2.2 springMVC.xml文件
<?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"
xmlns:mvc="http://www.springframework.org/schema/mvc"
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 http://www.springframework.org/schema/mvc https://www.springframework.org/schema/mvc/spring-mvc.xsd">
<!--扫描组件-->
<context:component-scan base-package="com.zyz.mvc"></context:component-scan>
<!-- 配置Thymeleaf视图解析器 -->
<bean
class="org.thymeleaf.spring5.view.ThymeleafViewResolver">
<property name="order" value="1"/>
<property name="characterEncoding" value="UTF-8"/>
<property name="templateEngine">
<bean class="org.thymeleaf.spring5.SpringTemplateEngine">
<property name="templateResolver">
<bean class="org.thymeleaf.spring5.templateresolver.SpringResourceTemplateResolver">
<!-- 视图前缀 -->
<property name="prefix" value="/WEB-INF/templates/"/>
<!-- 视图后缀 -->
<property name="suffix" value=".html"/>
<property name="templateMode" value="HTML5"/>
<property name="characterEncoding" value="UTF-8"/>
</bean>
</property>
</bean>
</property>
</bean>
<!--配置视图控制器-->
<mvc:view-controller path="/" view-name="index"></mvc:view-controller>
<mvc:view-controller path="/addEmployee" view-name="employee_add"></mvc:view-controller>
<!--开放对静态资源的访问-->
<mvc:default-servlet-handler/>
<!--开启mvc的注解驱动-->
<mvc:annotation-driven/>
</beans>
2.3 EmployeeController.java
package com.zyz.mvc.controller;
import com.zyz.mvc.dao.EmployeeDao;
import com.zyz.mvc.pojo.Employee;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import java.util.Collection;
/**
* @author zyz
* @version 1.0
* @data 2022/11/28 22:00
* @Description:
*/
@Controller
public class EmployeeController {
@Autowired
private EmployeeDao employeeDao;
/**
* 查询所有员工信息
* @param model
* @return
*/
@RequestMapping(value = "/employee",method = RequestMethod.GET)
public String getAllEmployee(Model model){
Collection<Employee> employeeList = employeeDao.getAll();
model.addAttribute("employeeList",employeeList);
return "employee_list";
}
/**
* 删除员工信息
* @param id
* @return
*/
@RequestMapping(value = "/employee/{id}",method = RequestMethod.DELETE)
public String deleteEmployee(@PathVariable("id") Integer id ){
employeeDao.delete(id);
return "redirect:/employee";
}
/**
* 添加用户信息
* @param employee
* @return
*/
@RequestMapping(value = "/employee",method = RequestMethod.POST)
public String addEmployee(Employee employee){
employeeDao.save(employee);
return "redirect:/employee";
}
/**
* 跳转修改员工信息
* @param id
* @param model
* @return
*/
@RequestMapping(value = "/employee/{id}",method = RequestMethod.GET)
public String toUpdateEmployee(@PathVariable("id") Integer id,Model model){
Employee employee = employeeDao.get(id);
model.addAttribute("employee",employee);
return "employee_update";
}
/**
* 修改用户信息
* @param employee
* @return
*/
@RequestMapping(value = "/employee",method = RequestMethod.PUT)
public String upDateEmployee(Employee employee){
employeeDao.save(employee);
return "redirect:/employee";
}
}
2.4 EmployeeDao.java
假数据模拟
package com.zyz.mvc.dao;
import com.zyz.mvc.pojo.Employee;
import org.springframework.stereotype.Repository;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
/**
* @author zyz
* @version 1.0
* @data 2022/11/28 21:56
* @Description:
*/
@Repository
public class EmployeeDao {
private static Map<Integer, Employee> employees = null;
static {
employees = new HashMap<Integer, Employee>();
employees.put(1001, new Employee(1001, "E-AA", "aa@163.com", 1));
employees.put(1002, new Employee(1002, "E-BB", "bb@163.com", 1));
employees.put(1003, new Employee(1003, "E-CC", "cc@163.com", 0));
employees.put(1004, new Employee(1004, "E-DD", "dd@163.com", 0));
employees.put(1005, new Employee(1005, "E-EE", "ee@163.com", 1));
}
private static Integer initId = 1006;
public void save(Employee employee) {
if (employee.getId() == null) {
employee.setId(initId++);
}
employees.put(employee.getId(), employee);
}
public Collection<Employee> getAll() {
return employees.values();
}
public Employee get(Integer id) {
return employees.get(id);
}
public void delete(Integer id) {
employees.remove(id);
}
}
2.5 Employee.java
实体类 使用Lombok
package com.zyz.mvc.pojo;
import lombok.AllArgsConstructor;
import lombok.Data;
/**
* @author zyz
* @version 1.0
* @data 2022/11/28 21:54
* @Description:
*/
@Data
@AllArgsConstructor
public class Employee {
private Integer id;
private String lastName;
private String email;
private Integer gender;
}
2.6 employee_list.html
<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
<meta charset="UTF-8">
<title>员工信息</title>
<style type="text/css">
a {
text-decoration: none;
}
</style>
<!-- 新 Bootstrap 核心 CSS 文件 -->
<link href="https://cdn.staticfile.org/twitter-bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
</head>
<body>
<div class="container">
<div class="row clearfix">
<div class="col-md-12 column">
<div class="page-header">
<small>员工信息----------显示所有员工信息</small>
</div>
</div>
</div>
<div class="row ">
<div class="col-md-4 column">
<a rel="nofollow" class="btn btn-primary btn-sm" th:href="@{/addEmployee}">添加员工</a>
</div>
<div class="col-md-4 column">
</div>
</div>
<div class="row clearfix">
<div class="col-md-12 column">
<table class="table table-hover table-striped">
<thead>
<tr>
<th>编号</th>
<th>姓名</th>
<th>邮箱</th>
<th>性别</th>
<th colspan="2">操作</th>
</tr>
</thead>
<!--查询用户处理-->
<tbody>
<tr th:each="employee : ${employeeList}">
<td th:text="${employee.id}"></td>
<td th:text="${employee.lastName}"></td>
<td th:text="${employee.email}"></td>
<td>
<div th:switch="${employee.gender}">
<span th:case="1">男</span>
<span th:case="0">女</span>
</div>
</td>
<td>
<a rel="nofollow" class="btn btn-danger btn-xs" @click="deleteEmployee"
th:href="@{'/employee/'+${employee.id}}">删除</a>
<a rel="nofollow" class="btn btn-primary btn-xs" th:href="@{'/employee/'+${employee.id}}">修改</a>
</td>
</tr>
</tbody>
</table>
</div>
</div>
</div>
<form method="post">
<input type="hidden" name="_method" value="DELETE">
</form>
<script type="text/javascript" th:src="@{/static/js/vue.js}"></script>
<script type="text/javascript">
var vue = new Vue({
el: "#mydataTable",
methods: {
deleteEmployee: function (event) {
var deleteForm = document.getElementById("deleteForm");
deleteForm.action = event.target.href;
deleteForm.submit();
event.preventDefault();
}
}
})
</script>
</body>
</html>
2.6 employee_add.html
<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
<meta charset="UTF-8">
<title>添加</title>
<!-- 新 Bootstrap 核心 CSS 文件 -->
<link href="https://cdn.staticfile.org/twitter-bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
</head>
<body>
<div class="container">
<div class="row clearfix">
<div class="col-md-12 column">
<div class="page-header">
<small>添加员工</small>
</div>
</div>
</div>
<form th:action="@{/employee}" method="post">
<div class="form-group">
<label>姓名</label>
<input type="text" class="form-control" name="lastName">
</div>
<div class="form-group">
<label>邮箱</label>
<input type="text" class="form-control" name="email">
</div>
<div class="form-group">
<label>性别 </label>
<input type="radio" name="gender" value="1" checked>男
<input type="radio" name="gender" value="0">女
</div>
<input type="submit" class="btn btn-default" value="添加">
</form>
</div>
</div>
</body>
</html>
2.6 employee_update.html
<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
<meta charset="UTF-8">
<title>修改</title>
<!-- 新 Bootstrap 核心 CSS 文件 -->
<link href="https://cdn.staticfile.org/twitter-bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
</head>
<body>
<div class="container">
<div class="row clearfix">
<div class="col-md-12 column">
<div class="page-header">
<small>修改信息</small>
</div>
</div>
</div>
<form th:action="@{/employee}" method="post">
<input type="hidden" name="_method" value="put">
<input type="hidden" name="id" th:value="${employee.id}">
<div class="form-group">
<label>姓名</label>
<input type="text" class="form-control" name="lastName" th:value="${employee.lastName}">
</div>
<div class="form-group">
<label>邮箱</label>
<input type="text" class="form-control" name="email" th:value="${employee.email}">
</div>
<div class="form-group">
<label >性别 </label>
<input type="radio" name="gender" value="1" th:field="${employee.gender}">男
<input type="radio" name="gender" value="0" th:field="${employee.gender}">女
</div>
<input type="submit" class="btn btn-default" value="保存">
</form>
</div>
</div>
</body>
</html>
2.6 index.html
<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
<meta charset="UTF-8">
<title>首页</title>
<style type="text/css">
a{
text-decoration: none;
color: black;
font-size: 18px;
}
h3{
width: 180px;
height: 38px;
margin:100px auto;
text-align: center;
line-height: 38px;
background: deepskyblue;
border-radius: 5px;
}
</style>
</head>
<body>
<h3>
<a rel="nofollow" th:href="@{/employee}">查看所有员工信息</a><br>
</h3>
<h3>
<a rel="nofollow" th:href="@{/addEmployee}">添加员工</a>
</h3>
</body>
</html>
3、实现的效果
3.1 首页
3.2 全部员工信息
3.3 添加员工
3.4 删除员工
3.5 修改信息
4、后语
这一章节主要练习RESTful、其它的暂不考虑。。。。。。