Spring + springMVC + mybatis Framework Integration Small Case (intégration SSM)

Others 2020-09-26 11:44:18 views: null

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Ce cas est basé sur la vidéo ssm du cheval noir à la station B. Il s'agit d'un simple formulaire de données stockées de la page jsp frontale à la base de données, et des opérations simples de requête et d'ajout sont réalisées. Il est principalement utilisé pour comprendre comment le framework SSM est intégré Fini, ne dis pas grand-chose, juste du code!
Ce boîtier est construit avec le projet Maven, en utilisant IDEA!
La structure des répertoires est illustrée dans la figure:
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Page de garde

<%--
  Created by IntelliJ IDEA.
  User: Cocowy
  Date: 2020/4/12
  Time: 12:43
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" isELIgnored="false" %>
<html>
<head>
    <title>Title</title>
</head>
<body>
<form action="account/save" method="post">
    姓名：<input type="text" name="name"><br/>
    金额：<input type="text" name="money"><br/>
    <input type="submit" value="提交">
</form>

</body>

<%--
  Created by IntelliJ IDEA.
  User: Cocowy
  Date: 2020/4/12
  Time: 12:46
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<html>
<head>
    <title>Title</title>
</head>
<body>
<h1>查询所有的账户信息</h1>
<c:forEach items="${list}" var="account">
    ${account.name} ${account.money}  <br/>
</c:forEach>
</body>
</html>

Le front-end télécharge simplement la page de formulaire et imprime la page de résultats de la requête,
puis télécharge le code de table de compte de la base de données

Table de base de données

CREATE TABLE account(    
id INT PRIMARY KEY AUTO_INCREMENT,    
NAME VARCHAR(20),    
money DOUBLE );

pom.xml

    <properties>
        <spring.version>5.0.2.RELEASE</spring.version>
        <slf4j.version>1.6.6</slf4j.version>
        <log4j.version>1.2.12</log4j.version>
        <mysql.version>5.1.6</mysql.version>
        <mybatis.version>3.4.5</mybatis.version>
    </properties>

    <dependencies>
        <!-- spring -->
        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjweaver</artifactId>
            <version>1.6.8</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aop</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <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-test</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-tx</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
            <scope>compile</scope>
        </dependency>

        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>${mysql.version}</version>
        </dependency>

        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>servlet-api</artifactId>
            <version>2.5</version>
            <scope>provided</scope>
        </dependency>

        <dependency>
            <groupId>javax.servlet.jsp</groupId>
            <artifactId>jsp-api</artifactId>
            <version>2.0</version>
            <scope>provided</scope>
        </dependency>

        <dependency>
            <groupId>jstl</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>

        <!-- log start -->
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>${log4j.version}</version>
        </dependency>

        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
            <version>${slf4j.version}</version>
        </dependency>

        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-log4j12</artifactId>
            <version>${slf4j.version}</version>
        </dependency>
        <!-- log end -->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>${mybatis.version}</version>
        </dependency>
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>1.3.0</version>
        </dependency>
        <dependency>
            <groupId>c3p0</groupId>
            <artifactId>c3p0</artifactId>
            <version>0.9.1.2</version>
            <type>jar</type>
            <scope>compile</scope>
        </dependency>
    </dependencies>
    <build>
        <finalName>ssm</finalName>
        <pluginManagement>
            <plugins>
                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-compiler-plugin</artifactId>
                    <version>3.2</version>
                    <configuration>
                        <source>1.8</source>
                        <target>1.8</target>
                        <encoding>UTF-8</encoding>
                        <showWarnings>true</showWarnings>
                    </configuration>
                </plugin>
            </plugins>
        </pluginManagement>
    </build>

fichier de configuration springmvc.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:mvc="http://www.springframework.org/schema/mvc"
       xmlns:context="http://www.springframework.org/schema/context"
       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.xsd
       http://www.springframework.org/schema/mvc
       http://www.springframework.org/schema/mvc/spring-mvc.xsd
       http://www.springframework.org/schema/context
       http://www.springframework.org/schema/context/spring-context.xsd">
    <!--开启注解扫描,只扫描Controller注解-->
    <context:component-scan base-package="com.hncu">
        <!--只扫描这个注解，别的不进行处理-->
        <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
    </context:component-scan>
    <!--配置视图解析器-->
    <bean id="internalResourceViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/pages/"/>
        <property name="suffix" value=".jsp"/>
    </bean>
    <!--配置静态资源-->
    <mvc:resources location="/css/" mapping="/css/**"/>
    <mvc:resources location="/images/" mapping="/images/**"/>
    <mvc:resources location="/js/" mapping="/js/**"/>
    <!--开启springMVC注解支持-->
    <mvc:annotation-driven/>

</beans>

Fichier de configuration log4j.properties (facultatif)

# Set root category priority to INFO and its only appender to CONSOLE.
#log4j.rootCategory=INFO, CONSOLE            debug   info   warn error fatal
log4j.rootCategory=debug, CONSOLE, LOGFILE

# Set the enterprise logger category to FATAL and its only appender to CONSOLE.
log4j.logger.org.apache.axis.enterprise=FATAL, CONSOLE

# CONSOLE is set to be a ConsoleAppender using a PatternLayout.
log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender
log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout
log4j.appender.CONSOLE.layout.ConversionPattern=%d{ISO8601} %-6r [%15.15t] %-5p %30.30c %x - %m\n

# LOGFILE is set to be a File appender using a PatternLayout.
log4j.appender.LOGFILE=org.apache.log4j.FileAppender
log4j.appender.LOGFILE.File=d:\axis.log
log4j.appender.LOGFILE.Append=true
log4j.appender.LOGFILE.layout=org.apache.log4j.PatternLayout
log4j.appender.LOGFILE.layout.ConversionPattern=%d{ISO8601} %-6r [%15.15t] %-5p %30.30c %x - %m\n

applicationContext.xml (fichier de configuration de printemps)

<?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:aop="http://www.springframework.org/schema/aop" 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
       http://www.springframework.org/schema/context/spring-context.xsd
       http://www.springframework.org/schema/aop
       http://www.springframework.org/schema/aop/spring-aop.xsd
       http://www.springframework.org/schema/tx
       http://www.springframework.org/schema/tx/spring-tx.xsd">
    <!--开启注解的扫描，只希望处理service和dao，controller不需要spring框架去处理-->
    <context:component-scan base-package="com.hncu">
        <!--配置哪些注解不扫描-->
        <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
    </context:component-scan>

    <!--spring整合Mybatis框架-->
    <!--配置连接池-->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="com.mysql.jdbc.Driver"/>
        <property name="jdbcUrl" value="jdbc:mysql://localhost:3306/（数据库名）"/>
        <property name="user" value="root"/>
        <property name="password" value="（密码）"/>
    </bean>
    <!--配置SqlSessionFactory工厂-->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"></property>
    </bean>
    <!--配置接口AccontDao所在的包-->
    <bean id="mapperScanner" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.hncu.dao"></property>
    </bean>

    <!--配置spring框架申明式事务管理-->

    <!--配置事务管理器-->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"></property>
    </bean>
    <!--配置事务通知-->
    <tx:advice id="txAdvice" transaction-manager="transactionManager">
        <tx:attributes>
            <tx:method name="find*" read-only="true"/>
            <tx:method name="*" isolation="DEFAULT"/>
        </tx:attributes>
    </tx:advice>
    <!--配置AOP增强-->
    <aop:config>
        <aop:advisor advice-ref="txAdvice" pointcut="execution(* com.hncu.service.impl.*Serviceimpl.*(..))"/>
    </aop:config>

</beans>

Classe d'entité (correspondant aux champs de base de données et aux champs de formulaire):

/**
 * 账户信息，对应数据库的account表
 *
 * @author Cocowwy
 * @create 2020-04-04-11:29
 */
public class Account {
    private Integer id;
    private String name;
    private Double money;

    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public Double getMoney() {
        return money;
    }

    public void setMoney(Double money) {
        this.money = money;
    }

    @Override
    public String toString() {
        return "Account{" +
                "id=" + id +
                ", name='" + name + '\'' +
                ", money=" + money +
                '}';
    }
}

Couche contrôleur

/**
 * web层
 *
 * @author Cocowwy
 * @create 2020-04-04-11:44
 */
@Controller
@RequestMapping("/account")
public class AccountController {
    @Autowired
    private IAccountService accountService;

    /**
     * 查询
     *
     * @param model
     * @return
     */
    @RequestMapping("/findAll")
    public String findAll(Model model) {
        System.out.println("表现层，查询所有的账户信息");
        //调用业务层方法
        List<Account> list = accountService.findAll();
        model.addAttribute("list", list);
        System.out.println(list + "ccc");
        return "list";
    }

    /**
     * 保存
     *
     * @param account
     * @return
     */
    @RequestMapping("/save")
    public void save(Account account, HttpServletRequest request, HttpServletResponse response) throws IOException {
        //调用业务层方法
        accountService.saveAccount(account);
        response.sendRedirect(request.getContextPath()+"/account/findAll");
    }
}

dao (pas besoin d'écrire une classe d'implémentation)

/**账户dao接口
 * @author Cocowwy
 * @create 2020-04-04-11:33
 */
@Repository
public interface IAccountDao {
    //查询所有账户信息
    @Select("select * from account")
    public List<Account> findAll();

    //保存用户信息
    @Insert("insert into account(name,money) values(#{name},#{money})")
    public  void  saveAccount(Account account);
}

Interface de la couche de service

/**
 * @author Cocowwy
 * @create 2020-04-04-11:37
 */
public interface IAccountService {
    //查询所有账户信息
    public List<Account> findAll();

    //保存用户信息
    public  void  saveAccount(Account account);
}

Classe d'implémentation de la couche de service

@Service("accountService")
public class IAccountServiceimpl implements IAccountService {
    @Autowired
    private IAccountDao accountDao;

    @Override
    public List<Account> findAll() {
        System.out.println("业务层查询所有的账户信息");
        return accountDao.findAll();
    }

    @Override
    public void saveAccount(Account account) {
        System.out.println("业务层保存账户");
        accountDao.saveAccount(account);

    }
}

Ce qui précède est toute la configuration, puis démarrez tomcat pour exécuter l'effet comme suit:
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précède est un petit cas d'intégration basé sur le framework SSM!
S'il y a une erreur, pardonnez-moi, tout le monde est invité à le signaler, merci!

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