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  • SpringMVC获取服务器时间

    SpringMVC获取服务器时间

    题目:

    前端页面显示后台服务器时间

    1、新建项目工程

    2、配置Tomcat

    3、配置pom.xml文件

    <?xml version="1.0" encoding="UTF-8"?>
    <project xmlns="http://maven.apache.org/POM/4.0.0"
             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
        <modelVersion>4.0.0</modelVersion>
    
        <groupId>com.xiang</groupId>
        <artifactId>mvcText</artifactId>
        <version>1.0-SNAPSHOT</version>
        <name>dateDemo</name>
        <packaging>war</packaging>
        <!-- 依赖软件包版本 -->
        <properties>
            <commons-lang.version>2.6</commons-lang.version>
            <spring.version>5.3.9</spring.version>
            <slf4j.version>2.0.0-alpha5</slf4j.version>
            <maven.compiler.target>1.8</maven.compiler.target>
            <maven.compiler.source>1.8</maven.compiler.source>
            <junit.version>5.7.1</junit.version>
        </properties>
        <!-- 配置依赖管理包 -->
        <dependencyManagement>
            <dependencies>
                <dependency>
                    <groupId>org.springframework</groupId>
                    <artifactId>spring-framework-bom</artifactId>
                    <version>${spring.version}</version>
                    <type>pom</type>
                    <scope>import</scope>
                </dependency>
            </dependencies>
        </dependencyManagement>
    
        <!--  依赖配置节点-->
        <dependencies>
            <!--springMVC依赖包-->
            <!-- https://mvnrepository.com/artifact/org.springframework/spring-webmvc -->
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-webmvc</artifactId>
                <version>5.3.9</version>
            </dependency>
    
            <!-- 通用依赖包  -->
            <dependency>
                <groupId>commons-lang</groupId>
                <artifactId>commons-lang</artifactId>
                <version>${commons-lang.version}</version>
            </dependency>
    
            <!--jstl-->
            <dependency>
                <groupId>javax.servlet</groupId>
                <artifactId>jstl</artifactId>
                <version>1.2</version>
            </dependency>
    
        </dependencies>
    
        <build>
            <plugins>
                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-war-plugin</artifactId>
                    <version>3.3.1</version>
                </plugin>
            </plugins>
        </build>
    </project>
    

    4、配置mvc-dispatcher-servlet.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
            http://www.springframework.org/schema/mvc/spring-mvc.xsd">
    
        <!-- 扫描控制器 -->
        <context:component-scan base-package="com.xiang">
            <context:include-filter type="annotation"
                                    expression="org.springframework.stereotype.Controller"/>
        </context:component-scan>
        <!-- 扩充了注解驱动,可以将请求参数绑定到控制器参数 -->
        <mvc:annotation-driven/>
    
        <!-- 静态资源处理, css, js, imgs -->
        <!--    <mvc:resources mapping="/resource/css/**" location="/resource/css/" />-->
        <!--    <mvc:resources mapping="/resource/js/**" location="/resource/js/" />-->
        <!--    <mvc:resources mapping="/resource/image/**" location="/resource/image/" />-->
    
        <!-- 配置试图解析器 -->
        <bean
                class="org.springframework.web.servlet.view.InternalResourceViewResolver">
            <property name="viewClass"
                      value="org.springframework.web.servlet.view.JstlView"></property>
            <!-- 配置jsp文件前缀及后缀 -->
            <property name="prefix" value="/"></property>
            <property name="suffix" value=".jsp"></property>
        </bean>
    
        <!--    自动注册最合适的处理器映射器、处理器适配器-->
        <mvc:annotation-driven/>
    </beans>
    

    5、配置springApplication.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"
           xsi:schemaLocation="http://www.springframework.org/schema/beans
    		http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
    		">
    </beans>
    

    6、编写controller.HomeController类

    package com.xiang.controller;
    
    import org.springframework.stereotype.Controller;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.servlet.ModelAndView;
    
    import java.text.SimpleDateFormat;
    import java.time.LocalDateTime;
    import java.time.format.DateTimeFormatter;
    import java.util.Calendar;
    import java.util.Date;
    
    /**
     * Created by IntelliJ IDEA.
     * User: xiang
     * Date: 2021/9/11 17:30
     */
    
    @Controller
    
    public class HomeController {
        private  Date date = new Date();
    
        @RequestMapping("/date")
        public ModelAndView test01() {
            date = new Date(); //服务器时间
            SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:ss:mm");
            String format = dateFormat.format(date);
    
            SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");//设置日期格式
            String s = df.format(date);
    
            new SimpleDateFormat("yyyy-MM-dd 'at' HH:mm:ss z");
            date = new Date(System.currentTimeMillis());
    
            LocalDateTime.now(); // get the current date and time
            DateTimeFormatter timeFormatter = DateTimeFormatter.ofPattern("dd-MM-yyyy HH:mm:ss");
    
            Calendar calendar = Calendar.getInstance(); // get current instance of the calendar
            SimpleDateFormat formatter = new SimpleDateFormat("dd-MM-yyyy HH:mm:ss");
            formatter.format(calendar.getTime());
    
    
    //        返回服务器时间到前端
    //        封装了数据和页面信息 ModelAndView
            ModelAndView modelAndView = new ModelAndView();
            modelAndView.addObject("format", format);
            modelAndView.addObject("date", date);
            modelAndView.addObject("df", df);
            modelAndView.addObject("timeFormatter", timeFormatter);
            modelAndView.addObject("formatter", formatter);
            modelAndView.addObject("s", s);
    
    //        视图解析
            modelAndView.setViewName("date/date");
            return modelAndView;
        }
    }
    

    7、编写date.date.jsp文件

    <%--
      Created by IntelliJ IDEA.
      User: Xiang
      Date: 2021/9/11
      Time: 17:38
      To change this template use File | Settings | File Templates.
    --%>
    <%@ page contentType="text/html;charset=UTF-8" language="java" %>
    <html>
    <head>
        <title>date</title>
    </head>
    <body>
    <h3>
        跳转成功,当前服务器时间: ${format}
    </h3>
    <h3>
        跳转成功,当前服务器时间: ${date}
    </h3>
    <h3>
        跳转成功,当前服务器时间: ${df}
    </h3>
    <h3>
        跳转成功,当前服务器时间: ${timeFormatter}
    </h3>
    <h3>
        跳转成功,当前服务器时间: ${formatter}
    </h3>
    <h3 style="color: red">
        跳转成功,当前服务器时间: ${s}
    </h3>
    
    </body>
    </html>
    
    

    8、项目工程结构目录

    9、项目工程运行结果

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  • 原文地址:https://www.cnblogs.com/d534/p/15257174.html
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