ssm整合

目錄

• 1、整合的準備工作
  • 1.匯入依賴
  • 2.建立資料表
  • 3.配置web.xml
  • 4.配置springmvc配置
  • 5.搭建MyBatis
  • 6.建立屬性檔案
  • 7.建立核心配置檔案
  • 8.建立日誌
  • 9.建立spring配置檔案
• 2、開始測試，要把相應的包建立完成
  • 1.建立pojo
  • 3.建立Mapper介面和對映檔案
  • 3.建立service和實現類
  • 4.Controller

1、整合的準備工作

1.匯入依賴

<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.qcby.ssm</groupId>
    <artifactId>ssmtest</artifactId>
    <version>1.0-SNAPSHOT</version>
    <packaging>war</packaging>

    <properties>
        <maven.compiler.source>8</maven.compiler.source>
        <maven.compiler.target>8</maven.compiler.target>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <!--版本號-->
        <spring.version>5.3.1</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>3.5.7</version>
        </dependency>
        <!--mybatis和spring的整合包-->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>2.0.6</version>
        </dependency>
        <!-- 連線池 -->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.0.9</version>
        </dependency>
        <!-- junit測試 -->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
            <scope>test</scope>
        </dependency>
        <!-- MySQL驅動 -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.6</version>
        </dependency>
        <!-- log4j日誌 -->
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>1.2.17</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/com.github.pagehelper/pagehelper -->
        <dependency>
            <groupId>com.github.pagehelper</groupId>
            <artifactId>pagehelper</artifactId>
            <version>5.2.0</version>
        </dependency>
        <!-- 日誌 -->
        <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>3.1.0</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>1.3.1</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>
</project>

2.建立資料表

3.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Spring的編碼過濾器-->
    <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>

    <!--配置處理請求方式的過濾器-->
    <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DispatcherServlet-->
    <servlet>
        <servlet-name>SpringMVC</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <!--設定SpringMVC配置檔案自定義的位置和名稱-->
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:springmvc.xml</param-value>
        </init-param>
        <!--將DispatcherServlet的初始化時間提前到伺服器啟動時-->
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>SpringMVC</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>

    <!--配置Spring的監聽器，在伺服器啟動時載入Spring的配置檔案-->
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>

    <!--設定Spring配置檔案自定義的位置和名稱-->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:spring.xml</param-value>
    </context-param>
</web-app>

4.配置springmvc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
         http://www.springframework.org/schema/mvc/spring-mvc.xsd">

    <!--掃描控制層元件-->
    <context:component-scan base-package="com.qcby.ssm.controller"></context:component-scan>

    <!-- 配置Thymeleaf檢視解析器 -->
    <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">
                        <!-- 檢視字首 -->
                        <property name="prefix" value="/WEB-INF/pages/"/>
                        <!-- 檢視字尾 -->
                        <property name="suffix" value=".html"/>
                        <property name="templateMode" value="HTML5"/>
                        <property name="characterEncoding" value="UTF-8"/>
                    </bean>
                </property>
            </bean>
        </property>
    </bean>


    <!--配置預設的servlet處理靜態資源-->
    <mvc:default-servlet-handler/>

    <!--開啟mvc的註解驅動-->
    <mvc:annotation-driven/>

    <!--配置檢視控制器-->
    <mvc:view-controller path="/" view-name="index"></mvc:view-controller>

    <!--配置檔案上傳解析器-->
    <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"></bean>
</beans>

5.搭建MyBatis

6.建立屬性檔案

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/mybatis_demo
jdbc.username=root
jdbc.password=root

7.建立核心配置檔案

<?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>
    <!--
           MyBatis核心配置檔案中，標籤的順序：
           properties?,settings?,typeAliases?,typeHandlers?,
           objectFactory?,objectWrapperFactory?,reflectorFactory?,
           plugins?,environments?,databaseIdProvider?,mappers?
       -->
    <settings>
        <!--將資料庫欄位名的下劃線對映為駝峰-->
        <setting name="mapUnderscoreToCamelCase" value="true"/>
        <!--開啟延遲載入-->
        <setting name="lazyLoadingEnabled" value="true"/>
        <!--按需載入-->
        <setting name="aggressiveLazyLoading" value="false"/>
    </settings>

    <plugins>
        <!--配置分頁外掛-->
        <plugin interceptor="com.github.pagehelper.PageInterceptor"></plugin>
    </plugins>

</configuration>

8.建立日誌

<?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>

9.建立spring配置檔案

<?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">

    <!--掃描元件（除控制層）-->
    <context:component-scan base-package="com.qcby.ssm">
        <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>

    <!--配置資料來源-->
    <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
        <property name="driverClassName" value="${jdbc.driver}"></property>
        <property name="url" value="${jdbc.url}"></property>
        <property name="username" value="${jdbc.username}"></property>
        <property name="password" value="${jdbc.password}"></property>
    </bean>

    <!--配置事務管理器-->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"></property>
    </bean>

    <!--
        開啟事務的註解驅動
        將使用註解@Transactional標識的方法或類中所有的方法進行事務管理
    -->
    <tx:annotation-driven transaction-manager="transactionManager" />

    <!--配置SqlSessionFactoryBean，可以直接在Spring的IOC中獲取SqlSessionFactory-->
    <bean class="org.mybatis.spring.SqlSessionFactoryBean">
        <!--設定MyBatis的核心配置檔案的路徑-->
        <property name="configLocation" value="classpath:mybatis-config.xml"></property>
        <!--設定資料來源-->
        <property name="dataSource" ref="dataSource"></property>
        <!--設定型別別名所對應的包-->
        <property name="typeAliasesPackage" value="com.qcby.ssm.pojo"></property>
        <!--設定對映檔案的路徑，只有對映檔案的包和mapper介面的包不一致時需要設定-->
        <!--<property name="mapperLocations" value="classpath:mappers/*.xml"></property>-->
    </bean>

    <!--
        配置mapper介面的掃描，可以將指定包下所有的mapper介面
        透過SqlSession建立代理實現類物件，並將這些物件交給IOC容器管理
    -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.qcby.ssm.mapper"></property>
    </bean>
</beans>

2、開始測試，要把相應的包建立完成

1.建立pojo

package com.qcby.ssm.pojo;

/**
 * @Author che
 * @Date 2024/6/19 21:25
 * Description:TODO
 * Version 1.0
 */
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 "Employee{" +
                "empId=" + empId +
                ", empName='" + empName + '\'' +
                ", age=" + age +
                ", sex='" + sex + '\'' +
                ", email='" + email + '\'' +
                '}';
    }
}

3.建立Mapper介面和對映檔案

package com.qcby.ssm.mapper;

import com.qcby.ssm.pojo.Employee;

import java.util.List;

/**
 * @Author che
 * @Date 2024/6/19 21:25
 * Description:TODO
 * Version 1.0
 */
public interface EmployeeMapper {
    /**
     * 查詢所有員工資訊
     * @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="com.qcby.ssm.mapper.EmployeeMapper">
    <select id="getAllEmployee" resultType="employee">
        select * from emp
    </select>
</mapper>

3.建立service和實現類

package com.qcby.ssm.service;

import com.github.pagehelper.PageInfo;
import com.qcby.ssm.pojo.Employee;

import java.util.List;

/**
 * @Author che
 * @Date 2024/6/19 21:29
 * Description:TODO
 * Version 1.0
 */
public interface EmployeeService {
    /**
     * 查詢所有員工
     * @return
     */
    List<Employee> getAllEmployee();

    /**
     * 獲取員工的分頁資訊
     * @param pageNum
     * @return
     */
    PageInfo<Employee> getEmployeeByPage(Integer pageNum);
}

package com.qcby.ssm.service.impl;

import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
import com.qcby.ssm.mapper.EmployeeMapper;
import com.qcby.ssm.pojo.Employee;
import com.qcby.ssm.service.EmployeeService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.util.List;

/**
 * @Author che
 * @Date 2024/6/19 21:31
 * Description:TODO
 * Version 1.0
 */
@Service
@Transactional
public class EmployeeServiceImpl implements EmployeeService {

    @Autowired
    private EmployeeMapper employeeMapper;
    @Override
    public List<Employee> getAllEmployee() {
        //處理業務邏輯
        return employeeMapper.getAllEmployee();
    }

    @Override
    public PageInfo<Employee> getEmployeeByPage(Integer pageNum) {
        //開啟分頁功能
        PageHelper.startPage(pageNum,4);
        //查詢所有員工資訊
        List<Employee> employees = employeeMapper.getAllEmployee();
        //獲取分頁相關資料
        PageInfo<Employee> page = new PageInfo<>(employees,5);
        return page;
    }
}

4.Controller

package com.qcby.ssm.controller;

import com.github.pagehelper.PageInfo;
import com.qcby.ssm.pojo.Employee;
import com.qcby.ssm.service.EmployeeService;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;

import javax.annotation.Resource;
import java.util.List;

/**
 * @Author che
 * @Date 2024/6/19 21:35
 * Description:TODO
 * Version 1.0
 */
@Controller
public class EmployeeController {
    @Resource
    private EmployeeService employeeService;


    @GetMapping("/employee/page/{pageNum}")
    public String getEmployeePage(@PathVariable("pageNum") Integer pageNum, Model model){
        //獲取員工的分頁資訊
        PageInfo<Employee> page = employeeService.getEmployeeByPage(pageNum);
        //資訊在請求域中共享
        model.addAttribute("page",page);
        return "employee_list";
    }

    @GetMapping("/employee")
    public String getEmployee(Model model){
        //查詢
        List<Employee> employees = employeeService.getAllEmployee();
        //資訊在請求域中共享
        model.addAttribute("employees",employees);
        return "employee_list";
    }
}

頁面

<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>首頁</title>
</head>
<body>
<h1>index.html</h1>
<a th:href="@{/employee/page/1}">查詢員工的分頁資訊</a>
</body>
</html>

<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>員工列表</title>
    <link rel="stylesheet" th:href="@{/static/css/index_work.css}">
</head>
<body>
<table>
    <tr>
        <th colspan="6">員工列表</th>
    </tr>
    <tr>
        <th>流水號</th>
        <th>員工姓名</th>
        <th>年齡</th>
        <th>性別</th>
        <th>郵箱</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>
            <a href="">刪除</a>
            <a href="">修改</a>
        </td>
    </tr>
</table>
<div style="text-align: center;">
    <a th:if="${page.hasPreviousPage}" th:href="@{/employee/page/1}">首頁</a>
    <a th:if="${page.hasPreviousPage}" th:href="@{'/employee/page/'+${page.prePage}}">上一頁</a>
    <span th:each="num : ${page.navigatepageNums}">
        <a th:if="${page.pageNum == num}" style="color: red;" th:href="@{'/employee/page/'+${num}}" th:text="'['+${num}+']'"></a>
        <a th:if="${page.pageNum != num}" th:href="@{'/employee/page/'+${num}}" th:text="${num}"></a>
    </span>
    <a th:if="${page.hasNextPage}" th:href="@{'/employee/page/'+${page.nextPage}}">下一頁</a>
    <a th:if="${page.hasNextPage}" th:href="@{'/employee/page/'+${page.pages}}">末頁</a>
</div>
</body>
</html>