• 【spring-boot】spring-boot-Restful学习


    6、RestfulCRUD

    1)、默认访问首页

    //使用WebMvcConfigurerAdapter可以来扩展SpringMVC的功能
    //@EnableWebMvc   不要接管SpringMVC
    @Configuration
    public class MyMvcConfig extends WebMvcConfigurerAdapter {
    ​
        @Override
        public void addViewControllers(ViewControllerRegistry registry) {
           // super.addViewControllers(registry);
            //浏览器发送 /atguigu 请求来到 success
            registry.addViewController("/atguigu").setViewName("success");
        }
    ​
        //所有的WebMvcConfigurerAdapter组件都会一起起作用
        @Bean //将组件注册在容器
        public WebMvcConfigurerAdapter webMvcConfigurerAdapter(){
            WebMvcConfigurerAdapter adapter = new WebMvcConfigurerAdapter() {
                @Override
                public void addViewControllers(ViewControllerRegistry registry) {
                    registry.addViewController("/").setViewName("login");
                    registry.addViewController("/index.html").setViewName("login");
                }
            };
            return adapter;
        }
    }
    ​
    //使用WebMvcConfigurerAdapter可以来扩展SpringMVC的功能
    //@EnableWebMvc   不要接管SpringMVC
    @Configuration
    public class MyMvcConfig extends WebMvcConfigurerAdapter {
    ​
        @Override
        public void addViewControllers(ViewControllerRegistry registry) {
           // super.addViewControllers(registry);
            //浏览器发送 /atguigu 请求来到 success
            registry.addViewController("/atguigu").setViewName("success");
        }
    ​
        //所有的WebMvcConfigurerAdapter组件都会一起起作用
        @Bean //将组件注册在容器
        public WebMvcConfigurerAdapter webMvcConfigurerAdapter(){
            WebMvcConfigurerAdapter adapter = new WebMvcConfigurerAdapter() {
                @Override
                public void addViewControllers(ViewControllerRegistry registry) {
                    registry.addViewController("/").setViewName("login");
                    registry.addViewController("/index.html").setViewName("login");
                }
            };
            return adapter;
        }
    }
    ​

    2)、国际化

    1)、编写国际化配置文件;

    2)、使用ResourceBundleMessageSource管理国际化资源文件

    3)、在页面使用fmt:message取出国际化内容

    步骤:

    1)、编写国际化配置文件,抽取页面需要显示的国际化消息

    2)、SpringBoot自动配置好了管理国际化资源文件的组件;

    @ConfigurationProperties(prefix = "spring.messages")
    public class MessageSourceAutoConfiguration {
        
        /**
         * Comma-separated list of basenames (essentially a fully-qualified classpath
         * location), each following the ResourceBundle convention with relaxed support for
         * slash based locations. If it doesn't contain a package qualifier (such as
         * "org.mypackage"), it will be resolved from the classpath root.
         */
        private String basename = "messages";  
        //我们的配置文件可以直接放在类路径下叫messages.properties;
        
        @Bean
        public MessageSource messageSource() {
            ResourceBundleMessageSource messageSource = new ResourceBundleMessageSource();
            if (StringUtils.hasText(this.basename)) {
                //设置国际化资源文件的基础名(去掉语言国家代码的)
                messageSource.setBasenames(StringUtils.commaDelimitedListToStringArray(
                        StringUtils.trimAllWhitespace(this.basename)));
            }
            if (this.encoding != null) {
                messageSource.setDefaultEncoding(this.encoding.name());
            }
            messageSource.setFallbackToSystemLocale(this.fallbackToSystemLocale);
            messageSource.setCacheSeconds(this.cacheSeconds);
            messageSource.setAlwaysUseMessageFormat(this.alwaysUseMessageFormat);
            return messageSource;
        }(prefix = "spring.messages")
    public class MessageSourceAutoConfiguration {
        
        /**
         * Comma-separated list of basenames (essentially a fully-qualified classpath
         * location), each following the ResourceBundle convention with relaxed support for
         * slash based locations. If it doesn't contain a package qualifier (such as
         * "org.mypackage"), it will be resolved from the classpath root.
         */
        private String basename = "messages";  
        //我们的配置文件可以直接放在类路径下叫messages.properties;
        
        @Bean
        public MessageSource messageSource() {
            ResourceBundleMessageSource messageSource = new ResourceBundleMessageSource();
            if (StringUtils.hasText(this.basename)) {
                //设置国际化资源文件的基础名(去掉语言国家代码的)
                messageSource.setBasenames(StringUtils.commaDelimitedListToStringArray(
                        StringUtils.trimAllWhitespace(this.basename)));
            }
            if (this.encoding != null) {
                messageSource.setDefaultEncoding(this.encoding.name());
            }
            messageSource.setFallbackToSystemLocale(this.fallbackToSystemLocale);
            messageSource.setCacheSeconds(this.cacheSeconds);
            messageSource.setAlwaysUseMessageFormat(this.alwaysUseMessageFormat);
            return messageSource;
        }

    3)、去页面获取国际化的值;

    <!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 href="asserts/css/bootstrap.min.css" th:href="@{/webjars/bootstrap/4.0.0/css/bootstrap.css}" rel="stylesheet">
            <!-- Custom styles for this template -->
            <link href="asserts/css/signin.css" th:href="@{/asserts/css/signin.css}" rel="stylesheet">
        </head><body class="text-center">
            <form class="form-signin" action="dashboard.html">
                <img class="mb-4" th:src="@{/asserts/img/bootstrap-solid.svg}" src="asserts/img/bootstrap-solid.svg" alt="" width="72" height="72">
                <h1 class="h3 mb-3 font-weight-normal" th:text="#{login.tip}">Please sign in</h1>
                <label class="sr-only" th:text="#{login.username}">Username</label>
                <input type="text" class="form-control" placeholder="Username" th:placeholder="#{login.username}" required="" autofocus="">
                <label class="sr-only" th:text="#{login.password}">Password</label>
                <input type="password" class="form-control" placeholder="Password" 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" th:text="#{login.btn}">Sign in</button>
                <p class="mt-5 mb-3 text-muted">© 2017-2018</p>
                <a class="btn btn-sm">中文</a>
                <a class="btn btn-sm">English</a>
            </form></body></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 href="asserts/css/bootstrap.min.css" th:href="@{/webjars/bootstrap/4.0.0/css/bootstrap.css}" rel="stylesheet">
            <!-- Custom styles for this template -->
            <link href="asserts/css/signin.css" th:href="@{/asserts/css/signin.css}" rel="stylesheet">
        </head><body class="text-center">
            <form class="form-signin" action="dashboard.html">
                <img class="mb-4" th:src="@{/asserts/img/bootstrap-solid.svg}" src="asserts/img/bootstrap-solid.svg" alt="" width="72" height="72">
                <h1 class="h3 mb-3 font-weight-normal" th:text="#{login.tip}">Please sign in</h1>
                <label class="sr-only" th:text="#{login.username}">Username</label>
                <input type="text" class="form-control" placeholder="Username" th:placeholder="#{login.username}" required="" autofocus="">
                <label class="sr-only" th:text="#{login.password}">Password</label>
                <input type="password" class="form-control" placeholder="Password" 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" th:text="#{login.btn}">Sign in</button>
                <p class="mt-5 mb-3 text-muted">© 2017-2018</p>
                <a class="btn btn-sm">中文</a>
                <a class="btn btn-sm">English</a>
            </form></body></html>

    效果:根据浏览器语言设置的信息切换了国际化;

    原理:

    ​ 国际化Locale(区域信息对象);LocaleResolver(获取区域信息对象);

            @Bean
            @ConditionalOnMissingBean
            @ConditionalOnProperty(prefix = "spring.mvc", name = "locale")
            public LocaleResolver localeResolver() {
                if (this.mvcProperties
                        .getLocaleResolver() == WebMvcProperties.LocaleResolver.FIXED) {
                    return new FixedLocaleResolver(this.mvcProperties.getLocale());
                }
                AcceptHeaderLocaleResolver localeResolver = new AcceptHeaderLocaleResolver();
                localeResolver.setDefaultLocale(this.mvcProperties.getLocale());
                return localeResolver;
            }
    默认的就是根据请求头带来的区域信息获取Locale进行国际化    @Bean
            @ConditionalOnMissingBean
            @ConditionalOnProperty(prefix = "spring.mvc", name = "locale")
            public LocaleResolver localeResolver() {
                if (this.mvcProperties
                        .getLocaleResolver() == WebMvcProperties.LocaleResolver.FIXED) {
                    return new FixedLocaleResolver(this.mvcProperties.getLocale());
                }
                AcceptHeaderLocaleResolver localeResolver = new AcceptHeaderLocaleResolver();
                localeResolver.setDefaultLocale(this.mvcProperties.getLocale());
                return localeResolver;
            }
    默认的就是根据请求头带来的区域信息获取Locale进行国际化

    4)、点击链接切换国际化

    /**
     * 可以在连接上携带区域信息
     */
    public class MyLocaleResolver implements LocaleResolver {
        
        @Override
        public Locale resolveLocale(HttpServletRequest request) {
            String l = request.getParameter("l");
            Locale locale = Locale.getDefault();
            if(!StringUtils.isEmpty(l)){
                String[] split = l.split("_");
                locale = new Locale(split[0],split[1]);
            }
            return locale;
        }
    ​
        @Override
        public void setLocale(HttpServletRequest request, HttpServletResponse response, Locale locale) {
    ​
        }
    }
    ​
    ​
     @Bean
        public LocaleResolver localeResolver(){
            return new MyLocaleResolver();
        }
    }
    ​
    ​
     * 可以在连接上携带区域信息
     */
    public class MyLocaleResolver implements LocaleResolver {
        
        @Override
        public Locale resolveLocale(HttpServletRequest request) {
            String l = request.getParameter("l");
            Locale locale = Locale.getDefault();
            if(!StringUtils.isEmpty(l)){
                String[] split = l.split("_");
                locale = new Locale(split[0],split[1]);
            }
            return locale;
        }
    ​
        @Override
        public void setLocale(HttpServletRequest request, HttpServletResponse response, Locale locale) {
    ​
        }
    }
    ​
    ​
     @Bean
        public LocaleResolver localeResolver(){
            return new MyLocaleResolver();
        }
    }
    ​
    ​

    3)、登陆

    开发期间模板引擎页面修改以后,要实时生效

    1)、禁用模板引擎的缓存

    # 禁用缓存
    spring.thymeleaf.cache=false 
    
    
    

    2)、页面修改完成以后ctrl+f9:重新编译;

    登陆错误消息的显示

    <p style="color: red" th:text="${msg}" th:if="${not #strings.isEmpty(msg)}"></p>p style="color: red" th:text="${msg}" th:if="${not #strings.isEmpty(msg)}"></p>

    4)、拦截器进行登陆检查

    拦截器

    /**
     * 登陆检查,
     */
    public class LoginHandlerInterceptor implements HandlerInterceptor {
        //目标方法执行之前
        @Override
        public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
            Object user = request.getSession().getAttribute("loginUser");
            if(user == null){
                //未登陆,返回登陆页面
                request.setAttribute("msg","没有权限请先登陆");
                request.getRequestDispatcher("/index.html").forward(request,response);
                return false;
            }else{
                //已登陆,放行请求
                return true;
            }
    ​
        }
    ​
        @Override
        public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
    ​
        }
    ​
        @Override
        public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
    ​
        }
    }
    ​
    /**
     * 登陆检查,
     */
    public class LoginHandlerInterceptor implements HandlerInterceptor {
        //目标方法执行之前
        @Override
        public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
            Object user = request.getSession().getAttribute("loginUser");
            if(user == null){
                //未登陆,返回登陆页面
                request.setAttribute("msg","没有权限请先登陆");
                request.getRequestDispatcher("/index.html").forward(request,response);
                return false;
            }else{
                //已登陆,放行请求
                return true;
            }
    ​
        }
    ​
        @Override
        public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
    ​
        }
    ​
        @Override
        public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
    ​
        }
    }
    ​

    注册拦截器

      //所有的WebMvcConfigurerAdapter组件都会一起起作用
        @Bean //将组件注册在容器
        public WebMvcConfigurerAdapter webMvcConfigurerAdapter(){
            WebMvcConfigurerAdapter adapter = new WebMvcConfigurerAdapter() {
                @Override
                public void addViewControllers(ViewControllerRegistry registry) {
                    registry.addViewController("/").setViewName("login");
                    registry.addViewController("/index.html").setViewName("login");
                    registry.addViewController("/main.html").setViewName("dashboard");
                }
    ​
                //注册拦截器
                @Override
                public void addInterceptors(InterceptorRegistry registry) {
                    //super.addInterceptors(registry);
                    //静态资源;  *.css , *.js
                    //SpringBoot已经做好了静态资源映射
                    registry.addInterceptor(new LoginHandlerInterceptor()).addPathPatterns("/**")
                            .excludePathPatterns("/index.html","/","/user/login");
                }
            };
            return adapter;
        }//所有的WebMvcConfigurerAdapter组件都会一起起作用
        @Bean //将组件注册在容器
        public WebMvcConfigurerAdapter webMvcConfigurerAdapter(){
            WebMvcConfigurerAdapter adapter = new WebMvcConfigurerAdapter() {
                @Override
                public void addViewControllers(ViewControllerRegistry registry) {
                    registry.addViewController("/").setViewName("login");
                    registry.addViewController("/index.html").setViewName("login");
                    registry.addViewController("/main.html").setViewName("dashboard");
                }
    ​
                //注册拦截器
                @Override
                public void addInterceptors(InterceptorRegistry registry) {
                    //super.addInterceptors(registry);
                    //静态资源;  *.css , *.js
                    //SpringBoot已经做好了静态资源映射
                    registry.addInterceptor(new LoginHandlerInterceptor()).addPathPatterns("/**")
                            .excludePathPatterns("/index.html","/","/user/login");
                }
            };
            return adapter;
        }

    5)、CRUD-员工列表

    实验要求:

    1)、RestfulCRUD:CRUD满足Rest风格;

    URI: /资源名称/资源标识 HTTP请求方式区分对资源CRUD操作

      普通CRUD(uri来区分操作) RestfulCRUD
    查询 getEmp emp---GET
    添加 addEmp?xxx emp---POST
    修改 updateEmp?id=xxx&xxx=xx emp/{id}---PUT
    删除 deleteEmp?id=1 emp/{id}---DELETE

    2)、实验的请求架构;

    实验功能 请求URI 请求方式
    查询所有员工 emps GET
    查询某个员工(来到修改页面) emp/1 GET
    来到添加页面 emp GET
    添加员工 emp POST
    来到修改页面(查出员工进行信息回显) emp/1 GET
    修改员工 emp PUT
    删除员工 emp/1 DELETE

    3)、员工列表:

    thymeleaf公共页面元素抽取

    1、抽取公共片段
    <div th:fragment="copy">
    &copy; 2011 The Good Thymes Virtual Grocery
    </div>
    ​
    2、引入公共片段
    <div th:insert="~{footer :: copy}"></div>
    ~{templatename::selector}:模板名::选择器
    ~{templatename::fragmentname}:模板名::片段名
    ​
    3、默认效果:
    insert的公共片段在div标签中
    如果使用th:insert等属性进行引入,可以不用写~{}:
    行内写法可以加上:[[~{}]];[(~{})];
    <div th:fragment="copy">
    &copy; 2011 The Good Thymes Virtual Grocery
    </div>
    ​
    2、引入公共片段
    <div th:insert="~{footer :: copy}"></div>
    ~{templatename::selector}:模板名::选择器
    ~{templatename::fragmentname}:模板名::片段名
    ​
    3、默认效果:
    insert的公共片段在div标签中
    如果使用th:insert等属性进行引入,可以不用写~{}:
    行内写法可以加上:[[~{}]];[(~{})];

    三种引入公共片段的th属性:

    th:insert:将公共片段整个插入到声明引入的元素中

    th:replace:将声明引入的元素替换为公共片段

    th:include:将被引入的片段的内容包含进这个标签中

    <footer th:fragment="copy">
    &copy; 2011 The Good Thymes Virtual Grocery
    </footer>
    ​
    引入方式
    <div th:insert="footer :: copy"></div>
    <div th:replace="footer :: copy"></div>
    <div th:include="footer :: copy"></div>
    ​
    效果
    <div>
        <footer>
        &copy; 2011 The Good Thymes Virtual Grocery
        </footer>
    </div><footer>
    &copy; 2011 The Good Thymes Virtual Grocery
    </footer><div>
    &copy; 2011 The Good Thymes Virtual Grocery
    </div>footer th:fragment="copy">
    &copy; 2011 The Good Thymes Virtual Grocery
    </footer>
    ​
    引入方式
    <div th:insert="footer :: copy"></div>
    <div th:replace="footer :: copy"></div>
    <div th:include="footer :: copy"></div>
    ​
    效果
    <div>
        <footer>
        &copy; 2011 The Good Thymes Virtual Grocery
        </footer>
    </div><footer>
    &copy; 2011 The Good Thymes Virtual Grocery
    </footer><div>
    &copy; 2011 The Good Thymes Virtual Grocery
    </div>

    引入片段的时候传入参数:

    <nav class="col-md-2 d-none d-md-block bg-light sidebar" id="sidebar">
        <div class="sidebar-sticky">
            <ul class="nav flex-column">
                <li class="nav-item">
                    <a class="nav-link active"
                       th:class="${activeUri=='main.html'?'nav-link active':'nav-link'}"
                       href="#" th:href="@{/main.html}">
                        <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-home">
                            <path d="M3 9l9-7 9 7v11a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2z"></path>
                            <polyline points="9 22 9 12 15 12 15 22"></polyline>
                        </svg>
                        Dashboard <span class="sr-only">(current)</span>
                    </a>
                </li><!--引入侧边栏;传入参数-->
    <div th:replace="commons/bar::#sidebar(activeUri='emps')"></div>
    <nav class="col-md-2 d-none d-md-block bg-light sidebar" id="sidebar">
        <div class="sidebar-sticky">
            <ul class="nav flex-column">
                <li class="nav-item">
                    <a class="nav-link active"
                       th:class="${activeUri=='main.html'?'nav-link active':'nav-link'}"
                       href="#" th:href="@{/main.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>
                        Dashboard <span class="sr-only">(current)</span>
                    </a>
                </li><!--引入侧边栏;传入参数-->
    <div th:replace="commons/bar::#sidebar(activeUri='emps')"></div>

    6)、CRUD-员工添加

    添加页面

    <form>
        <div class="form-group">
            <label>LastName</label>
            <input type="text" class="form-control" placeholder="zhangsan">
        </div>
        <div class="form-group">
            <label>Email</label>
            <input type="email" class="form-control" placeholder="zhangsan@atguigu.com">
        </div>
        <div class="form-group">
            <label>Gender</label><br/>
            <div class="form-check form-check-inline">
                <input class="form-check-input" type="radio" name="gender"  value="1">
                <label class="form-check-label"></label>
            </div>
            <div class="form-check form-check-inline">
                <input class="form-check-input" type="radio" name="gender"  value="0">
                <label class="form-check-label"></label>
            </div>
        </div>
        <div class="form-group">
            <label>department</label>
            <select class="form-control">
                <option>1</option>
                <option>2</option>
                <option>3</option>
                <option>4</option>
                <option>5</option>
            </select>
        </div>
        <div class="form-group">
            <label>Birth</label>
            <input type="text" class="form-control" placeholder="zhangsan">
        </div>
        <button type="submit" class="btn btn-primary">添加</button>
    </form>form>
        <div class="form-group">
            <label>LastName</label>
            <input type="text" class="form-control" placeholder="zhangsan">
        </div>
        <div class="form-group">
            <label>Email</label>
            <input type="email" class="form-control" placeholder="zhangsan@atguigu.com">
        </div>
        <div class="form-group">
            <label>Gender</label><br/>
            <div class="form-check form-check-inline">
                <input class="form-check-input" type="radio" name="gender"  value="1">
                <label class="form-check-label"></label>
            </div>
            <div class="form-check form-check-inline">
                <input class="form-check-input" type="radio" name="gender"  value="0">
                <label class="form-check-label"></label>
            </div>
        </div>
        <div class="form-group">
            <label>department</label>
            <select class="form-control">
                <option>1</option>
                <option>2</option>
                <option>3</option>
                <option>4</option>
                <option>5</option>
            </select>
        </div>
        <div class="form-group">
            <label>Birth</label>
            <input type="text" class="form-control" placeholder="zhangsan">
        </div>
        <button type="submit" class="btn btn-primary">添加</button>
    </form>

    提交的数据格式不对:生日:日期;

    2017-12-12;2017/12/12;2017.12.12;

    日期的格式化;SpringMVC将页面提交的值需要转换为指定的类型;

    2017-12-12---Date; 类型转换,格式化;

    默认日期是按照/的方式;

    7)、CRUD-员工修改

    修改添加二合一表单

    <!--需要区分是员工修改还是添加;-->
    <form th:action="@{/emp}" method="post">
        <!--发送put请求修改员工数据-->
        <!--
    1、SpringMVC中配置HiddenHttpMethodFilter;(SpringBoot自动配置好的)
    2、页面创建一个post表单
    3、创建一个input项,name="_method";值就是我们指定的请求方式
    -->
        <input type="hidden" name="_method" value="put" th:if="${emp!=null}"/>
        <input type="hidden" name="id" th:if="${emp!=null}" th:value="${emp.id}">
        <div class="form-group">
            <label>LastName</label>
            <input name="lastName" type="text" class="form-control" placeholder="zhangsan" th:value="${emp!=null}?${emp.lastName}">
        </div>
        <div class="form-group">
            <label>Email</label>
            <input name="email" type="email" class="form-control" placeholder="zhangsan@atguigu.com" th:value="${emp!=null}?${emp.email}">
        </div>
        <div class="form-group">
            <label>Gender</label><br/>
            <div class="form-check form-check-inline">
                <input class="form-check-input" type="radio" name="gender" value="1" th:checked="${emp!=null}?${emp.gender==1}">
                <label class="form-check-label"></label>
            </div>
            <div class="form-check form-check-inline">
                <input class="form-check-input" type="radio" name="gender" value="0" th:checked="${emp!=null}?${emp.gender==0}">
                <label class="form-check-label"></label>
            </div>
        </div>
        <div class="form-group">
            <label>department</label>
            <!--提交的是部门的id-->
            <select class="form-control" name="department.id">
                <option th:selected="${emp!=null}?${dept.id == emp.department.id}" th:value="${dept.id}" th:each="dept:${depts}" th:text="${dept.departmentName}">1</option>
            </select>
        </div>
        <div class="form-group">
            <label>Birth</label>
            <input name="birth" type="text" class="form-control" placeholder="zhangsan" th:value="${emp!=null}?${#dates.format(emp.birth, 'yyyy-MM-dd HH:mm')}">
        </div>
        <button type="submit" class="btn btn-primary" th:text="${emp!=null}?'修改':'添加'">添加</button>
    </form>
    <form th:action="@{/emp}" method="post">
        <!--发送put请求修改员工数据-->
        <!--
    1、SpringMVC中配置HiddenHttpMethodFilter;(SpringBoot自动配置好的)
    2、页面创建一个post表单
    3、创建一个input项,name="_method";值就是我们指定的请求方式
    -->
        <input type="hidden" name="_method" value="put" th:if="${emp!=null}"/>
        <input type="hidden" name="id" th:if="${emp!=null}" th:value="${emp.id}">
        <div class="form-group">
            <label>LastName</label>
            <input name="lastName" type="text" class="form-control" placeholder="zhangsan" th:value="${emp!=null}?${emp.lastName}">
        </div>
        <div class="form-group">
            <label>Email</label>
            <input name="email" type="email" class="form-control" placeholder="zhangsan@atguigu.com" th:value="${emp!=null}?${emp.email}">
        </div>
        <div class="form-group">
            <label>Gender</label><br/>
            <div class="form-check form-check-inline">
                <input class="form-check-input" type="radio" name="gender" value="1" th:checked="${emp!=null}?${emp.gender==1}">
                <label class="form-check-label"></label>
            </div>
            <div class="form-check form-check-inline">
                <input class="form-check-input" type="radio" name="gender" value="0" th:checked="${emp!=null}?${emp.gender==0}">
                <label class="form-check-label"></label>
            </div>
        </div>
        <div class="form-group">
            <label>department</label>
            <!--提交的是部门的id-->
            <select class="form-control" name="department.id">
                <option th:selected="${emp!=null}?${dept.id == emp.department.id}" th:value="${dept.id}" th:each="dept:${depts}" th:text="${dept.departmentName}">1</option>
            </select>
        </div>
        <div class="form-group">
            <label>Birth</label>
            <input name="birth" type="text" class="form-control" placeholder="zhangsan" th:value="${emp!=null}?${#dates.format(emp.birth, 'yyyy-MM-dd HH:mm')}">
        </div>
        <button type="submit" class="btn btn-primary" th:text="${emp!=null}?'修改':'添加'">添加</button>
    </form>

    8)、CRUD-员工删除

    <tr th:each="emp:${emps}">
        <td th:text="${emp.id}"></td>
        <td>[[${emp.lastName}]]</td>
        <td th:text="${emp.email}"></td>
        <td th:text="${emp.gender}==0?'女':'男'"></td>
        <td th:text="${emp.department.departmentName}"></td>
        <td th:text="${#dates.format(emp.birth, 'yyyy-MM-dd HH:mm')}"></td>
        <td>
            <a class="btn btn-sm btn-primary" th:href="@{/emp/}+${emp.id}">编辑</a>
            <button th:attr="del_uri=@{/emp/}+${emp.id}" class="btn btn-sm btn-danger deleteBtn">删除</button>
        </td>
    </tr>
    ​
    ​
    <script>
        $(".deleteBtn").click(function(){
            //删除当前员工的
            $("#deleteEmpForm").attr("action",$(this).attr("del_uri")).submit();
            return false;
        });
    </script>tr th:each="emp:${emps}">
        <td th:text="${emp.id}"></td>
        <td>[[${emp.lastName}]]</td>
        <td th:text="${emp.email}"></td>
        <td th:text="${emp.gender}==0?'女':'男'"></td>
        <td th:text="${emp.department.departmentName}"></td>
        <td th:text="${#dates.format(emp.birth, 'yyyy-MM-dd HH:mm')}"></td>
        <td>
            <a class="btn btn-sm btn-primary" th:href="@{/emp/}+${emp.id}">编辑</a>
            <button th:attr="del_uri=@{/emp/}+${emp.id}" class="btn btn-sm btn-danger deleteBtn">删除</button>
        </td>
    </tr>
    ​
    ​
    <script>
        $(".deleteBtn").click(function(){
            //删除当前员工的
            $("#deleteEmpForm").attr("action",$(this).attr("del_uri")).submit();
            return false;
        });
    </script>
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  • 原文地址:https://www.cnblogs.com/qxlxi/p/12860976.html
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