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929 lines
20 KiB
HTML
929 lines
20 KiB
HTML
<!DOCTYPE html>
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<title>11 WebFlux 实战图书管理系统.md.html</title>
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<a href="/专栏/案例上手 Spring Boot WebFlux（完）/01 导读：课程概要.md.html">01 导读：课程概要.md.html</a>
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<a href="/专栏/案例上手 Spring Boot WebFlux（完）/02 WebFlux 快速入门实践.md.html">02 WebFlux 快速入门实践.md.html</a>
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<a href="/专栏/案例上手 Spring Boot WebFlux（完）/03 WebFlux Web CRUD 实践.md.html">03 WebFlux Web CRUD 实践.md.html</a>
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<a href="/专栏/案例上手 Spring Boot WebFlux（完）/04 WebFlux 整合 MongoDB.md.html">04 WebFlux 整合 MongoDB.md.html</a>
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<a href="/专栏/案例上手 Spring Boot WebFlux（完）/05 WebFlux 整合 Thymeleaf.md.html">05 WebFlux 整合 Thymeleaf.md.html</a>
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<a href="/专栏/案例上手 Spring Boot WebFlux（完）/06 WebFlux 中 Thymeleaf 和 MongoDB 实践.md.html">06 WebFlux 中 Thymeleaf 和 MongoDB 实践.md.html</a>
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<a href="/专栏/案例上手 Spring Boot WebFlux（完）/07 WebFlux 整合 Redis.md.html">07 WebFlux 整合 Redis.md.html</a>
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<a href="/专栏/案例上手 Spring Boot WebFlux（完）/08 WebFlux 中 Redis 实现缓存.md.html">08 WebFlux 中 Redis 实现缓存.md.html</a>
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<a href="/专栏/案例上手 Spring Boot WebFlux（完）/09 WebFlux 中 WebSocket 实现通信.md.html">09 WebFlux 中 WebSocket 实现通信.md.html</a>
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<a href="/专栏/案例上手 Spring Boot WebFlux（完）/10 WebFlux 集成测试及部署.md.html">10 WebFlux 集成测试及部署.md.html</a>
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<a class="current-tab" href="/专栏/案例上手 Spring Boot WebFlux（完）/11 WebFlux 实战图书管理系统.md.html">11 WebFlux 实战图书管理系统.md.html</a>
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<div class="sidebar-toggle" onclick="sidebar_toggle()" onmouseover="add_inner()" onmouseleave="remove_inner()">
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<script>
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function add_inner() {
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inner.classList.remove('show')
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function sidebar_toggle() {
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let sidebar_toggle = document.querySelector('.sidebar-toggle')
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content.classList.remove('extend')
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sidebar_toggle.classList.add('extend')
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let sidebar = document.querySelector('.book-sidebar')
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}
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</script>
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<div class="book-navbar">
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<!-- For Responsive Layout -->
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<header class="navbar">
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<section class="navbar-section">
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<a onclick="open_sidebar()">
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</section>
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overflow-x: auto;
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overflow-y: hidden;">
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<div class="book-post">
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<p id="tip" align="center"></p>
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<div><h1>11 WebFlux 实战图书管理系统</h1>
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<h3>前言</h3>
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<p>本篇内容我们会实现如下图所示的城市管理系统，因为上面案例都用的是 City，所以这里直接使用城市作为对象，写一个简单的城市管理系统，如图所示：</p>
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<p><img src="assets/99e91edf11b6ff64025c7a74c4a1db561525504.png" alt="file" /></p>
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<h3>结构</h3>
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<p>类似上面讲的工程搭建，新建一个工程编写此案例。工程如图：</p>
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<p><img src="assets/1a05190038e9565a3ffa1b876a63f4701525504.png" alt="img" /></p>
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<p>下面目录和上面类似，这边不重复讲解：</p>
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<ul>
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<li>pom.xml Maven 依赖配置</li>
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<li>application.properties 配置文件，配置 mongo 连接属性配置</li>
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<li>dao 数据访问层</li>
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</ul>
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<p><a href="https://github.com/JeffLi1993/springboot-learning-example">单击这里查看源代码</a>。</p>
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<p>本文主要介绍：</p>
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<ul>
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<li>controller 控制层实现</li>
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<li>static 存放 css 图片静态资源</li>
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<li>templates 编写页面逻辑</li>
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</ul>
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<h3>CityController 控制层</h3>
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<p>使用注解驱动的模式来进行开发，代码如下：</p>
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<pre><code>/**
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* city 控制层
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* <p>
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* Created by bysocket
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*/
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@Controller
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@RequestMapping(value = "/city")
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public class CityController {
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private static final String CITY_FORM_PATH_NAME = "cityForm";
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private static final String CITY_LIST_PATH_NAME = "cityList";
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private static final String REDIRECT_TO_CITY_URL = "redirect:/city";
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@Autowired
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CityService cityService;
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@RequestMapping(method = RequestMethod.GET)
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public String getCityList(final Model model) {
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model.addAttribute("cityList", cityService.findAll());
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return CITY_LIST_PATH_NAME;
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}
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@RequestMapping(value = "/create", method = RequestMethod.GET)
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public String createCityForm(final Model model) {
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model.addAttribute("city", new City());
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model.addAttribute("action", "create");
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return CITY_FORM_PATH_NAME;
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}
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@RequestMapping(value = "/create", method = RequestMethod.POST)
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public String postCity(@ModelAttribute City city) {
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cityService.insertByCity(city);
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return REDIRECT_TO_CITY_URL;
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}
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@RequestMapping(value = "/update/{id}", method = RequestMethod.GET)
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public String getCity(@PathVariable Long id, final Model model) {
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final Mono<City> city = cityService.findById(id);
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model.addAttribute("city", city);
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model.addAttribute("action", "update");
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return CITY_FORM_PATH_NAME;
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}
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@RequestMapping(value = "/update", method = RequestMethod.POST)
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public String putBook(@ModelAttribute City city) {
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cityService.update(city);
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return REDIRECT_TO_CITY_URL;
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}
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@RequestMapping(value = "/delete/{id}", method = RequestMethod.GET)
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public String deleteCity(@PathVariable Long id) {
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cityService.delete(id);
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return CITY_LIST_PATH_NAME;
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}
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}
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</code></pre>
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<p>可以创建不同功能的控制层，来处理不同的 HTTP 业务请求，比如 CityFrontController、CityAdminController 等分别处理不同场景的问题。</p>
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<ul>
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<li>getCityList 方法：处理“/city”的 GET 请求，用来获取 City 列表。</li>
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<li>getCity 方法：处理“/city/update/{id}”的 GET 请求，用来获取 City 信息。</li>
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<li>postCity 方法：处理“/book/create”的 POST 请求，用来新建 Book 信息；通过 @ModelAttribut 绑定实体参数，也通过 @RequestBody @RequestParam 传递参数。</li>
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<li>putCity 方法：处理“/update”的 PUT 请求，用来更新 City 信息，并使用 redirect 重定向到列表页面。</li>
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</ul>
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<h3>cityForm 提交表单页面</h3>
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<p>表单页面如下：</p>
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<pre><code><!DOCTYPE html>
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<html lang="zh-CN">
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<head>
|
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<script type="text/javascript" th:src="@{https://cdn.bootcss.com/jquery/3.2.1/jquery.min.js}"></script>
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<link th:href="@{https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css}" rel="stylesheet"/>
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<link th:href="@{/css/default.css}" rel="stylesheet"/>
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||
|
||
<link rel="icon" th:href="@{/images/favicon.ico}" type="image/x-icon"/>
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<meta charset="UTF-8"/>
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||
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<title>城市管理</title>
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</head>
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||
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<body>
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||
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||
<div class="contentDiv">
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||
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||
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<legend>
|
||
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<strong>城市管理</strong>
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||
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||
</legend>
|
||
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<form th:action="@{/city/{action}(action=${action})}" method="post" class="form-horizontal">
|
||
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||
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||
<div class="form-group">
|
||
|
||
<label for="city_id" class="col-sm-2 control-label">城市编号:</label>
|
||
|
||
<div class="col-xs-4">
|
||
|
||
<input type="text" class="form-control" id="city_id" name="id" th:value="${city.id}"/>
|
||
|
||
</div>
|
||
|
||
</div>
|
||
|
||
|
||
|
||
<div class="form-group">
|
||
|
||
<label for="city_name" class="col-sm-2 control-label">城市名称:</label>
|
||
|
||
<div class="col-xs-4">
|
||
|
||
<input type="text" class="form-control" id="city_name" name="cityName" th:value="${city.cityName}"/>
|
||
|
||
</div>
|
||
|
||
</div>
|
||
|
||
|
||
|
||
<div class="form-group">
|
||
|
||
<label for="city_description" class="col-sm-2 control-label">城市描述:</label>
|
||
|
||
<div class="col-xs-4">
|
||
|
||
<input class="form-control" id="city_description" rows="3" name="description"
|
||
|
||
th:value="${city.description}" />
|
||
|
||
|
||
|
||
</div>
|
||
|
||
</div>
|
||
|
||
|
||
|
||
<div class="form-group">
|
||
|
||
<label for="city_provinceId" class="col-sm-2 control-label">省份编号:</label>
|
||
|
||
<div class="col-xs-4">
|
||
|
||
<input type="text" class="form-control" id="city_provinceId" name="provinceId" th:value="${city.provinceId}"
|
||
|
||
/>
|
||
|
||
</div>
|
||
|
||
</div>
|
||
|
||
|
||
|
||
<div class="form-group">
|
||
|
||
<div class="col-sm-offset-2 col-sm-10">
|
||
|
||
<input class="btn btn-primary" type="submit" value="提交"/>&nbsp;&nbsp;
|
||
|
||
<input class="btn" type="button" value="返回" onclick="history.back()"/>
|
||
|
||
</div>
|
||
|
||
</div>
|
||
|
||
</form>
|
||
|
||
</div>
|
||
|
||
</body>
|
||
|
||
</html>
|
||
|
||
|
||
|
||
</code></pre>
|
||
|
||
<p>利用的是 Thymeleaf 语法，上面章节也讲过具体使用方法，这里实现新增城市和更新城市两个操作。巧妙利用了 action 字段去动态判断请求是新增还是更新的控制层方法，然后进行 form 表单提交。</p>
|
||
|
||
<h3>cityList 城市列表页面</h3>
|
||
|
||
<p>列表页面代码如下：</p>
|
||
|
||
<pre><code><!DOCTYPE html>
|
||
|
||
<html lang="zh-CN">
|
||
|
||
<head>
|
||
|
||
<script type="text/javascript" th:src="@{https://cdn.bootcss.com/jquery/3.2.1/jquery.min.js}"></script>
|
||
|
||
<link th:href="@{https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css}" rel="stylesheet"/>
|
||
|
||
<link th:href="@{/css/default.css}" rel="stylesheet"/>
|
||
|
||
<link rel="icon" th:href="@{/images/favicon.ico}" type="image/x-icon"/>
|
||
|
||
<meta charset="UTF-8"/>
|
||
|
||
<title>城市列表</title>
|
||
|
||
</head>
|
||
|
||
|
||
|
||
<body>
|
||
|
||
|
||
|
||
<div class="contentDiv">
|
||
|
||
|
||
|
||
<table class="table table-hover table-condensed">
|
||
|
||
<legend>
|
||
|
||
<strong>城市列表</strong>
|
||
|
||
</legend>
|
||
|
||
<thead>
|
||
|
||
<tr>
|
||
|
||
<th>城市编号</th>
|
||
|
||
<th>城市名称</th>
|
||
|
||
<th>描述</th>
|
||
|
||
<th>省份编号</th>
|
||
|
||
<th>管理</th>
|
||
|
||
</tr>
|
||
|
||
</thead>
|
||
|
||
<tbody>
|
||
|
||
<tr th:each="city : ${cityList}">
|
||
|
||
<th scope="row" th:text="${city.id}"></th>
|
||
|
||
<td><a th:href="@{/city/update/{cityId}(cityId=${city.id})}" th:text="${city.cityName}"></a></td>
|
||
|
||
<td th:text="${city.description}"></td>
|
||
|
||
<td th:text="${city.provinceId}"></td>
|
||
|
||
<td><a class="btn btn-danger" th:href="@{/city/delete/{cityId}(cityId=${city.id})}">删除</a></td>
|
||
|
||
</tr>
|
||
|
||
|
||
|
||
</tbody>
|
||
|
||
</table>
|
||
|
||
|
||
|
||
<div><a class="btn btn-primary" href="/city/create" role="button">新增城市</a></div>
|
||
|
||
</div>
|
||
|
||
|
||
|
||
</body>
|
||
|
||
</html>
|
||
|
||
|
||
|
||
</code></pre>
|
||
|
||
<p>这里编写了一个列表对象的循环和简单的页面跳转逻辑，下面看看这两个页面组合使用的运行场景。</p>
|
||
|
||
<h3>运行工程</h3>
|
||
|
||
<p>一个 CRUD 的 Spring Boot Webflux 工程就开发完毕了，下面运行工程验证一下。使用 IDEA 右侧工具栏，点击 Maven Project Tab 选项，单击使用下 Maven 插件的 install 命令；或者使用命令行的形式，在工程根目录下，执行 Maven 清理和安装工程的指令：</p>
|
||
|
||
<pre><code>cd springboot-webflux-10-book-manage-sys
|
||
|
||
mvn clean install
|
||
|
||
|
||
|
||
</code></pre>
|
||
|
||
<p>在控制台中看到成功的输出：</p>
|
||
|
||
<pre><code>... 省略
|
||
|
||
[INFO] ------------------------------------------------------------------------
|
||
|
||
[INFO] BUILD SUCCESS
|
||
|
||
[INFO] ------------------------------------------------------------------------
|
||
|
||
[INFO] Total time: 01:30 min
|
||
|
||
[INFO] Finished at: 2017-10-15T10:00:54+08:00
|
||
|
||
[INFO] Final Memory: 31M/174M
|
||
|
||
[INFO] ------------------------------------------------------------------------
|
||
|
||
|
||
|
||
</code></pre>
|
||
|
||
<p>在 IDEA 中执行 Application 类启动，任意正常模式或者 Debug 模式，可以在控制台看到成功运行的输出：</p>
|
||
|
||
<pre><code>... 省略
|
||
|
||
2018-04-10 08:43:39.932 INFO 2052 --- [ctor-http-nio-1] r.ipc.netty.tcp.BlockingNettyContext : Started HttpServer on /0:0:0:0:0:0:0:0:8080
|
||
|
||
2018-04-10 08:43:39.935 INFO 2052 --- [ main] o.s.b.web.embedded.netty.NettyWebServer : Netty started on port(s): 8080
|
||
|
||
2018-04-10 08:43:39.960 INFO 2052 --- [ main] org.spring.springboot.Application : Started Application in 6.547 seconds (JVM running for 9.851)
|
||
|
||
|
||
|
||
</code></pre>
|
||
|
||
<p>打开浏览器，输入地址：http://localhost:8080/city，即打开城市列表页面：</p>
|
||
|
||
<p><img src="assets/99e91edf11b6ff64025c7a74c4a1db561525504-1608971466446.png" alt="file" /></p>
|
||
|
||
<p>然后新增，或者单击城市名称修改，到表单提交页面：</p>
|
||
|
||
<p><img src="assets/e9364ebeb39e5a17cb8ee10bdd1736381525505.png" alt="file" /></p>
|
||
|
||
<h3>总结</h3>
|
||
|
||
<p>这里，初步实现了小案例城市管理系统，基本满足日常的 CRUD 业务流程操作。上手教程只是上手，具体复杂逻辑，欢迎一起多交流学习。</p>
|
||
|
||
</div>
|
||
|
||
</div>
|
||
|
||
<div>
|
||
|
||
<div style="float: left">
|
||
|
||
<a href="/专栏/案例上手 Spring Boot WebFlux（完）/10 WebFlux 集成测试及部署.md.html">上一页</a>
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|
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|
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</div>
|
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|
||
</div>
|
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