当前位置： 首页 > news >正文

多容器SSM整合

news 来源：原创 2024/5/18 15:41:08

文章目录

  • SSM整合
    • ContextLoaderListener
    • 准备工作
    • 配置web.xml
    • 创建SpringMVC的配置文件并配置
    • 搭建MyBatis环境
    • 创建Spring的配置文件并配置
    • 测试功能

【尚硅谷】SSM框架全套教程-讲师：杨博超

保持热爱、奔赴山河

SSM整合

ContextLoaderListener

Spring提供了监听器ContextLoaderListener，实现ServletContextListener接口，可监听ServletContext的状态，在web服务器的启动，读取Spring的配置文件，创建Spring的IOC容器。web应用中必须在web.xml中配置

<!-- 配置监听器,用于加载applicationContion.xml文件 -->
<listener>
	<!--
	配置Spring的监听器，在服务器启动时加载Spring的配置文件
	Spring配置文件默认位置和名称：/WEB-INF/applicationContext.xml
	可通过上下文参数自定义Spring配置文件的位置和名称
	-->
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!--自定义Spring配置文件的位置和名称-->
<context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:spring.xml</param-value>
</context-param>

准备工作

①创建Maven Module
②导入依赖

<packaging>war</packaging>
<properties>
    <spring.version>5.3.22</spring.version>
</properties>
<dependencies>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-context</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-beans</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <!--springmvc-->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-web</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-webmvc</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-jdbc</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-aspects</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-test</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <!-- Mybatis核心 -->
    <dependency>
        <groupId>org.mybatis</groupId>
        <artifactId>mybatis</artifactId>
        <version>3.5.10</version>
    </dependency>
    <!--mybatis和spring的整合包-->
    <dependency>
        <groupId>org.mybatis</groupId>
        <artifactId>mybatis-spring</artifactId>
        <version>2.0.7</version>
    </dependency>
    <!-- 连接池 -->
    <dependency>
        <groupId>com.alibaba</groupId>
        <artifactId>druid</artifactId>
        <version>1.2.11</version>
    </dependency>
    <!-- junit测试 -->
    <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <version>4.12</version>
        <scope>test</scope>
    </dependency>
    <!-- MySQL驱动 -->
    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>8.0.29</version>
    </dependency>
    <!-- log4j日志 -->
    <dependency>
        <groupId>log4j</groupId>
        <artifactId>log4j</artifactId>
        <version>1.2.17</version>
    </dependency>
    <dependency>
        <groupId>com.github.pagehelper</groupId>
        <artifactId>pagehelper</artifactId>
        <version>5.2.0</version>
    </dependency>
    <!-- 日志 -->
    <dependency>
        <groupId>ch.qos.logback</groupId>
        <artifactId>logback-classic</artifactId>
        <version>1.2.3</version>
    </dependency>
    <!-- ServletAPI -->
    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>javax.servlet-api</artifactId>
        <version>4.0.1</version>
        <scope>provided</scope>
    </dependency>
    <dependency>
        <groupId>com.fasterxml.jackson.core</groupId>
        <artifactId>jackson-databind</artifactId>
        <version>2.12.1</version>
    </dependency>
    <dependency>
        <groupId>commons-fileupload</groupId>
        <artifactId>commons-fileupload</artifactId>
        <version>1.4</version>
    </dependency>
    <!-- Spring5和Thymeleaf整合包 -->
    <dependency>
        <groupId>org.thymeleaf</groupId>
        <artifactId>thymeleaf-spring5</artifactId>
        <version>3.0.12.RELEASE</version>
    </dependency>
</dependencies>

③创建表

CREATE TABLE `t_emp` (
	`emp_id` int(11) NOT NULL AUTO_INCREMENT,
	`emp_name` varchar(20) DEFAULT NULL,
	`age` int(11) DEFAULT NULL,
	`sex` char(1) DEFAULT NULL,
	`email` varchar(50) DEFAULT NULL,
	PRIMARY KEY (`emp_id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8

配置web.xml

<?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springMVC的编码过滤器 -->
    <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>forceEncoding</param-name>
            <param-value>true</param-value>
        </init-param>
    </filter>
    <filter-mapping>
        <filter-name>CharacterEncodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
    <!-- 配置springMVC获取请求方式过滤器，配合RESTful风格使用 -->
    <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>
    <!-- 配置前端控制器 -->
    <servlet>
        <servlet-name>springmvc</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:springmvc.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>springmvc</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>
    <!-- 配置监听器,用于加载applicationContion.xml文件 -->
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:spring.xml</param-value>
    </context-param>
</web-app>

创建SpringMVC的配置文件并配置

<?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 https://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/mvc https://www.springframework.org/schema/mvc/spring-mvc.xsd">

    <!-- 开启注解扫描,只扫描mvc注解 -->
    <context:component-scan base-package="pers.tianyu.controller"/>
    <!-- 配置Thymeleaf视图解析器 -->
    <bean id="viewResolver" 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>
    <!--配置默认的servlet处理静态资源-->
    <mvc:default-servlet-handler/>
    <!--开启对mvc注解支持-->
    <mvc:annotation-driven/>
    <!--视图控制器-->
    <mvc:view-controller path="/" view-name="index"/>
    <!--文件上传解析器-->
    <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
    </bean>
</beans>

搭建MyBatis环境

①创建属性文件jdbc.properties

jdbc.driverClassName=com.mysql.cj.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/mybatis?userUnicode=true&characterEncoding=utf8&useSSL=true&serverTime=GMT%2B8
jdbc.username=root
jdbc.password=root

②创建MyBatis的核心配置文件mybatis-config.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration
        PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>

    <settings>
        <!--将下划线映射为驼峰-->
        <setting name="mapUnderscoreToCamelCase" value="true"/>
    </settings>
    <!--实体类别名-->
    <typeAliases>
        <package name="pers.tianyu.pojo"/>
    </typeAliases>
    <!--分页插件-->
    <plugins>
        <plugin interceptor="com.github.pagehelper.PageInterceptor"></plugin>
    </plugins>
    <!--引入映射文件-->
    <!--    <mappers>-->
    <!--        <mapper resource="mappers/UserMapper.xml"/>-->
    <!--    </mappers>-->
</configuration>

③创建Mapper接口和映射文件

public interface EmployeeMapper {

    /**
     * 查询所有的员工信息
     * @return
     */
    List<Employee> getAllEmployee();
}

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
        PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="pers.tianyu.mapper.EmployeeMapper">
    <!--List<Employee> getAllEmployee();-->
    <select id="getAllEmployee" resultType="employee">
        select * from t_emp
    </select>
</mapper>

④创建日志文件log4j.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
<log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/">
    <appender name="STDOUT" class="org.apache.log4j.ConsoleAppender">
        <param name="Encoding" value="UTF-8"/>
        <layout class="org.apache.log4j.PatternLayout">
            <param name="ConversionPattern" value="%-5p %d{MM-dd HH:mm:ss,SSS}
%m (%F:%L) \n"/>
        </layout>
    </appender>
    <logger name="java.sql">
        <level value="debug"/>
    </logger>
    <logger name="org.apache.ibatis">
        <level value="info"/>
    </logger>
    <root>
        <level value="debug"/>
        <appender-ref ref="STDOUT"/>
    </root>
</log4j:configuration>

创建Spring的配置文件并配置

<?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:tx="http://www.springframework.org/schema/tx"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">

    <!--扫面组件-->
    <context:component-scan base-package="pers.tianyu">
        <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
    </context:component-scan>
    <!-- 引入jdbc.properties -->
    <context:property-placeholder location="classpath:jdbc.properties"></context:property-placeholder>
    <!--配置Druid数据源-->
    <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
        <property name="driverClassName" value="${jdbc.driverClassName}"/>
        <property name="url" value="${jdbc.url}"/>
        <property name="username" value="${jdbc.username}"/>
        <property name="password" value="${jdbc.password}"/>
    </bean>
    <!--配置用于创建SqlSessionFactory的工厂bean-->
    <bean class="org.mybatis.spring.SqlSessionFactoryBean">
        <!--设置数据源-->
        <property name="dataSource" ref="dataSource"></property>
        <!--设置MyBatis配置文件的路径（可以不设置）-->
        <property name="configLocation" value="classpath:mybatis-config.xml"></property>
        <!--当前映射文和mapper接口所在的包一致，并且有MapperScannerConfigurer，可以不用设置，不一致需要单独设置-->
        <!--<property name="mapperLocations" value="classpath:mapper/*.xml"></property>-->
    </bean>

    <!--事务管理器-->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"></property>
    </bean>

    <!--开启事务注解驱动-->
    <tx:annotation-driven transaction-manager="transactionManager"/>

    <!--扫描mapper包下所有mapper接口，通过SqlSessionFactory获取SqlSession在获取
    mapper接口对应的代理类，将代理类交给spring容器管理
    -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="pers.tianyu.mapper"></property>
    </bean>
</beans>

测试功能

①创建组件
实体类Employee

public class Employee {
    private Integer empId;
    private String empName;
    private Integer age;
    private String sex;
    private String email;

    public Employee() {
    }

    public Employee(Integer empId, String empName, Integer age, String sex, String email) {
        this.empId = empId;
        this.empName = empName;
        this.age = age;
        this.sex = sex;
        this.email = email;
    }

    public Integer getEmpId() {
        return empId;
    }

    public void setEmpId(Integer empId) {
        this.empId = empId;
    }

    public String getEmpName() {
        return empName;
    }

    public void setEmpName(String empName) {
        this.empName = empName;
    }

    public Integer getAge() {
        return age;
    }

    public void setAge(Integer age) {
        this.age = age;
    }

    public String getSex() {
        return sex;
    }

    public void setSex(String sex) {
        this.sex = sex;
    }

    public String getEmail() {
        return email;
    }

    public void setEmail(String email) {
        this.email = email;
    }

    @Override
    public String toString() {
        return "EmployeeMapper{" +
                "empId=" + empId +
                ", empName='" + empName + '\'' +
                ", age=" + age +
                ", sex='" + sex + '\'' +
                ", email='" + email + '\'' +
                '}';
    }
}

创建控制层组件EmployeeController

@Controller
public class EmployeeController {

    @Autowired
    private EmployeeService employeeService;

    // 查询所有的员工信息--->/employee--->get
    @RequestMapping(value = "/employee/page/{pageNum}",method = RequestMethod.GET)
    public String getAllEmployee(@PathVariable("pageNum") Integer pageNum, Model model){
        //查询所有的员工信息
        PageInfo<Employee> page = employeeService.getAllEmployee(pageNum);
        //将员工信息在请求域中共享
        model.addAttribute("page",page);
        //跳转/employee_list.html
        return "employee_list";
    }
    // 根据id查询员工信息--->/employee/id--->get
    // 跳转到添加页面--->/to/add--->get
    // 添加员工信息--->/employee--->post
    // 修改员工信息--->/employee--->put
    // 删除员工信息--->/employee/1--->delete
}

创建接口EmployeeService

public interface EmployeeService {

    /**
     * 查询所有的员工信息
     * @return
     */
    PageInfo<Employee> getAllEmployee(Integer pageNum);
}

创建实现类EmployeeServiceImpl

@Service
@Transactional
public class EmployeeServiceImpl implements EmployeeService {

    @Autowired
    private EmployeeMapper employeeMapper;

    @Override
    public PageInfo<Employee> getAllEmployee(Integer pageNum) {
        PageHelper.startPage(pageNum,4);
        List<Employee> list = employeeMapper.getAllEmployee();
        PageInfo<Employee> page = new PageInfo<>(list,5);
        return page;
    }
}

②创建页面

<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>员工列表</title>
    <link rel="stylesheet" th:href="@{/static/css/index_work.css}">
</head>
<body>
<table>
    <tr>
        <th colspan="6">员工列表</th>
    </tr>
    <tr>
        <th>流水号</th>
        <th>员工姓名</th>
        <th>年龄</th>
        <th>性别</th>
        <th>邮箱</th>
        <th>操作</th>
    </tr>
    <tr th:each="employee,status:${page.list}">
        <td th:text="${status.count}"></td>
        <td th:text="${employee.empName}"></td>
        <td th:text="${employee.age}"></td>
        <td th:text="${employee.sex}"></td>
        <td th:text="${employee.email}"></td>
        <td>
            删除|修改
            <!--            <a th:href="">删除</a>-->
            <!--            <a th:href="">修改</a>-->
        </td>
    </tr>
    <tr>
        <td colspan="6">
            <span th:if="${page.hasPreviousPage}">
                <a th:href="@{/employee/page/1}">首页</a>
                <a th:href="@{'/employee/page/'+${page.prePage}}">上一页</a>
            </span>
            <span th:each="num:${page.navigatepageNums}">
                <a th:if="${page.pageNum == num}" th:href="@{'/employee/page/'+${num}}" th:text="'['+${num}+']'"
                   style="color: red;"></a>
                <a th:if="${page.pageNum != num}" th:href="@{'/employee/page/'+${num}}" th:text="${num}"></a>
            </span>
            <span th:if="${page.isFirstPage}">
                <a th:href="@{'/employee/page/' + ${page.nextPage}}">下一页</a>
                <a th:href="@{'/employee/page/' + ${page.pages}}">末页</a>
            </span>
        </td>
    </tr>
</table>
</body>
</html>

③访问测试分页功能

<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>首页</title>
</head>
<body>
<h1>index.html</h1>
<a th:href="@{/employee/page/1}">分页查询员工</a>
</body>
</html>

相关文章：

  • 如何用架构的思维为云原生做减法？
  • 程序员面试必备软技能，值得收藏！
  • IDEA社区版(Community Edition)创建Springboot-Web项目，Java
  • 全能赛道、热门方向、稀缺数据，“嬴彻-清华AIR杯”自动驾驶技术大赛火热开赛中
  • 案例分享 | 高性能材料企业官网3D可视化升级
  • 深度学习——day22 知识回顾class1：什么是神经网络
  • Kubernetes基础服务安装
  • 怎么画深度优先生成树和广度优先生成树【简答题】
  • 谷歌成功利用一台 54 量子比特的量子计算机
  • 零基础搭建网站，快解析远程调试无需公网IP
  • 计算机与操作系统
  • 月薪3W，互联网“降本增效”后，这些人开始被疯抢
  • 【CSS】选择器优先级，值与单位
  • 在群晖NAS部署_开源在线项目任务管理工具【dooTask】
  • 拼多多出评多久生效？如何评价？拼多多过滤评价标准？拼多多出评助手
  • 【407天】跃迁之路——程序员高效学习方法论探索系列（实验阶段164-2018.03.19）...
  • 〔开发系列〕一次关于小程序开发的深度总结
  • ES6简单总结（搭配简单的讲解和小案例）
  • Hexo+码云+git快速搭建免费的静态Blog
  • MyEclipse 8.0 GA 搭建 Struts2 + Spring2 + Hibernate3 （测试）
  • node和express搭建代理服务器（源码）
  • Python3爬取英雄联盟英雄皮肤大图
  • Solarized Scheme
  • Unix命令
  • 从零开始在ubuntu上搭建node开发环境
  • 番外篇1：在Windows环境下安装JDK
  • 给自己的博客网站加上酷炫的初音未来音乐游戏？
  • 简单数学运算程序（不定期更新）
  • 理解在java “”i=i++;”所发生的事情
  • 如何用vue打造一个移动端音乐播放器
  • 想写好前端，先练好内功
  • 用jQuery怎么做到前后端分离
  • 追踪解析 FutureTask 源码
  • Nginx实现动静分离
  • ​​​​​​​​​​​​​​Γ函数
  • #mysql 8.0 踩坑日记
  • #QT（一种朴素的计算器实现方法）
  • （11）工业界推荐系统-小红书推荐场景及内部实践【粗排三塔模型】
  • （八）Docker网络跨主机通讯vxlan和vlan
  • （第9篇）大数据的的超级应用——数据挖掘-推荐系统
  • （二）正点原子I.MX6ULL u-boot移植
  • （附源码）spring boot校园健康监测管理系统 毕业设计 151047
  • （附源码）ssm旅游企业财务管理系统 毕业设计 102100
  • （简单有案例）前端实现主题切换、动态换肤的两种简单方式
  • (免费领源码）Java#Springboot#mysql农产品销售管理系统47627-计算机毕业设计项目选题推荐
  • (四)docker：为mysql和java jar运行环境创建同一网络，容器互联
  • （已解决）报错：Could not load the Qt platform plugin “xcb“
  • ../depcomp: line 571: exec: g++: not found
  • .locked1、locked勒索病毒解密方法|勒索病毒解决|勒索病毒恢复|数据库修复
  • .NET CLR Hosting 简介
  • .net core webapi Startup 注入ConfigurePrimaryHttpMessageHandler
  • .NET Core 实现 Redis 批量查询指定格式的Key
  • .NET Framework 和 .NET Core 在默认情况下垃圾回收（GC）机制的不同（局部变量部分）
  • .NET 反射 Reflect
  • .net 前台table如何加一列下拉框_如何用Word编辑参考文献