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SSM整合攻略【全】Spring、SpringMVC、Mybats

分类：XML作者：编程之家原文地址AI导航网

首先：
需要配置的是pom.xml

<?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>org.example</groupId>
    <artifactId>SSMTest</artifactId>
    <version>1.0-SNAPSHOT</version>
    <!--Spring context-->
    <!-- https://mvnrepository.com/artifact/org.springframework/spring-context -->
    <dependencies>
        <!--spring context-->
        <!-- https://mvnrepository.com/artifact/org.springframework/spring-context -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>5.2.10.RELEASE</version>
        </dependency>

        <!--Spring aop-->
        <!-- https://mvnrepository.com/artifact/org.springframework/spring-aop -->
        <!-- https://mvnrepository.com/artifact/org.springframework/spring-aop -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aop</artifactId>
            <version>5.2.10.RELEASE</version>
        </dependency>

        <!--aspect-->
        <!--Spring web   mvc-->
        <!-- https://mvnrepository.com/artifact/org.springframework/spring-web -->
        <!-- https://mvnrepository.com/artifact/org.springframework/spring-web -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
            <version>5.2.10.RELEASE</version>
        </dependency>

        <!--spring webmvc  mvc-->
        <!-- https://mvnrepository.com/artifact/org.springframework/spring-webmvc -->
        <!-- https://mvnrepository.com/artifact/org.springframework/spring-webmvc -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>5.2.10.RELEASE</version>
        </dependency>

        <!--spring test 单元测试-->
        <!-- https://mvnrepository.com/artifact/org.springframework/spring-test -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>5.0.0.RELEASE</version>
            <scope>test</scope>
        </dependency>
        <!--spring tx (spring transaction) 事务-->
        <!-- https://mvnrepository.com/artifact/org.springframework/spring-tx -->
        <!-- https://mvnrepository.com/artifact/org.springframework/spring-tx -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-tx</artifactId>
            <version>5.2.10.RELEASE</version>
        </dependency>

        <!--MysqL connector java  8.0.12-->
        <!-- https://mvnrepository.com/artifact/MysqL/mysql-connector-java -->
        <dependency>
            <groupId>MysqL</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>8.0.12</version>
        </dependency>
        <!--spring jdbc  是jdbc模板技术-->
        <!-- https://mvnrepository.com/artifact/org.springframework/spring-jdbc -->
        <!-- https://mvnrepository.com/artifact/org.springframework/spring-jdbc -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
            <version>5.2.10.RELEASE</version>
        </dependency>

        <!--servlet api-->
        <!-- https://mvnrepository.com/artifact/javax.servlet/javax.servlet-api -->
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <version>3.1.0</version>
            <scope>provided</scope>
        </dependency>
        <!--jsp-->
        <!-- https://mvnrepository.com/artifact/javax.servlet.jsp/jsp-api -->
        <dependency>
            <groupId>javax.servlet.jsp</groupId>
            <artifactId>jsp-api</artifactId>
            <version>2.1</version>
            <scope>provided</scope>
        </dependency>
        <!--jstl-->
        <!-- https://mvnrepository.com/artifact/javax.servlet.jsp.jstl/jstl -->
        <dependency>
            <groupId>javax.servlet.jsp.jstl</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>
        <!--log start-->
        <!--log4j-->
        <!-- https://mvnrepository.com/artifact/log4j/log4j -->
<!--        <dependency>-->
<!--            <groupId>log4j</groupId>-->
<!--            <artifactId>log4j</artifactId>-->
<!--            <version>1.2.17</version>-->
<!--        </dependency>-->
<!--        &lt;!&ndash;slf4j&ndash;&gt;-->
<!--        &lt;!&ndash; https://mvnrepository.com/artifact/org.slf4j/slf4j-api &ndash;&gt;-->
<!--        <dependency>-->
<!--            <groupId>org.slf4j</groupId>-->
<!--            <artifactId>slf4j-api</artifactId>-->
<!--            <version>1.7.25</version>-->
<!--            <scope>compile</scope>-->
<!--        </dependency>-->
        <!--log end-->
        <!--mybatis-->
        <!-- https://mvnrepository.com/artifact/org.mybatis/mybatis -->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.4.6</version>
        </dependency>
        <!--mybatis - spring-->
        <!-- https://mvnrepository.com/artifact/org.mybatis/mybatis-spring -->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>1.3.2</version>
        </dependency>
        <!--c3p0-->
        <!-- https://mvnrepository.com/artifact/com.mchange/c3p0 -->
        <dependency>
            <groupId>com.mchange</groupId>
            <artifactId>c3p0</artifactId>
            <version>0.9.5.2</version>
        </dependency>
        <dependency>
            <groupId>org.junit.jupiter</groupId>
            <artifactId>junit-jupiter</artifactId>
            <version>RELEASE</version>
            <scope>test</scope>
        </dependency>
        <!--报错家的包-->
<!--        <dependency>-->
<!--            <groupId>org.slf4j</groupId>-->
<!--            <artifactId>slf4j-api</artifactId>-->
<!--            <version>1.5.6</version>-->
<!--            <type>jar</type>-->
<!--        </dependency>-->

<!--        <dependency>-->
<!--            <groupId>slf4j-simple</groupId>-->
<!--            <artifactId>slf4j-simple</artifactId>-->
<!--            <version>1.5.2</version>-->
<!--        </dependency>-->
    </dependencies>
</project>

项目结构：

项目结构

一：Spring
配置applicationContext.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:tx="http://www.springframework.org/schema/tx"
       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/aop
       http://www.springframework.org/schema/aop/spring-aop.xsd
       http://www.springframework.org/schema/context
       http://www.springframework.org/schema/context/spring-context.xsd
       http://www.springframework.org/schema/tx
       http://www.springframework.org/schema/tx/spring-tx.xsd
">
        <!--开启注解扫描,希望处理service & dao,不希望Spring框架去处理-->
    <context:component-scan base-package="com">
        <!--配置一些不需要扫描的包-->
        <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
    </context:component-scan>
</beans>

测试类：

class AccountServiceImpltest {
    @Test
    public void test(){
        //加载配置文件
//        FileSystemXmlApplicationContext context=new FileSystemXmlApplicationContext("/Webroot/WEB-INF/applicationContext.xml");
        ApplicationContext context = new ClasspathXmlApplicationContext("classpath:applicationContext.xml");
        //获取对象：accountService是在Impl上声明的注解对象，但其实可以继承为父类接口的对象
        AccountService accountService = context.getBean("accountService", AccountService.class);
        //调用方法
        accountService.findAll();
    }
}

二：SpringMVC:
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">

    <welcome-file-list>
        <welcome-file>index.jsp</welcome-file>
    </welcome-file-list>




    <!--配置SpringMVC的一步：前端控制器-->
    <servlet>
        <servlet-name>dispatcherServlet</servlet-name>
        <servlet-class>org.springframework.web.servlet.dispatcherServlet</servlet-class>
        <!--第二步：加载springmvc.xml配置文件-->
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:springMVC.xml</param-value>
        </init-param>
        <!--配置参数:一启动就创建该servlet-->
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>dispatcherServlet</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>
    <!--3.设置中文乱码的问题-->
    <filter>
        <filter-name>characterEncodingFilter</filter-name>
        <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
        <!--设置字符集-->
        <init-param>
            <param-name>encoding</param-name>
            <param-value>UTF-8</param-value>
        </init-param>
    </filter>
    <filter-mapping>
        <filter-name>characterEncodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
</web-app>

配置springmbc.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:tx="http://www.springframework.org/schema/tx"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 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/aop
       http://www.springframework.org/schema/aop/spring-aop.xsd
       http://www.springframework.org/schema/context
       http://www.springframework.org/schema/context/spring-context.xsd
       http://www.springframework.org/schema/tx
       http://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/mvc https://www.springframework.org/schema/mvc/spring-mvc.xsd">
    <!--1.开启注解扫描，只扫描Controller注解-->
    <!--SpringMVC配置文件-->
    <context:component-scan base-package="com">
        <!--spring不扫描controller,MVC就得扫描，分工明确-->
        <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
    </context:component-scan>
    <!--2.配置的视图解析器对象-->
    <bean id="internalResourceViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <!--前-->
        <property name="prefix" value="/WEB-INF/pages/"></property>
        <!--后-->
        <property name="suffix" value=".jsp"></property>
    </bean>
    <!--3.过滤静态资源-->
    <mvc:resources mapping="/css/" location="/css/**"></mvc:resources>
    <mvc:resources mapping="/images/" location="/images/**"></mvc:resources>
    <mvc:resources mapping="/js/" location="/js/**"></mvc:resources>
    <!--4.开启SpringMVC注解支持-->
    <mvc:annotation-driven></mvc:annotation-driven>
</beans>

测试类

package com.young.controller;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

/**
 * Create by wuyang9769@163.com
 * Decorate:
 * web controller
 * @author young_wu
 * @date 2020/11/23 0023 16:17
 * You can't be killed, it will only make you stronger
 */
@Controller
@RequestMapping("/account")
public class AccountController {
    @RequestMapping("/test")
    public String test(){
        System.out.println("控制器调转！");
        return "success";
    }
}

三：Spring & SpringMVC
思路是将业务层的对象和控制层的对象放在容器里，
方式使用DI，
那么就要就要加载Spring的配置文件
配置web.xml用监听器来加载Spring的配置文件

<?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">

    <welcome-file-list>
        <welcome-file>index.jsp</welcome-file>
    </welcome-file-list>
    <!--三：整合Spring & SpringMVC 利用监听器，加载默认为：WEB-INF/applicationContext.xml-->
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>

    </listener>
    <!--设置配置文件的路径-->
    <context-param>
        <!--这里是类路径下的-->
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:applicationContext.xml</param-value>
    </context-param>

    <!--配置SpringMVC的一步：前端控制器-->
    <servlet>
        <servlet-name>dispatcherServlet</servlet-name>
        <servlet-class>org.springframework.web.servlet.dispatcherServlet</servlet-class>
        <!--第二步：加载springmvc.xml配置文件-->
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:springMVC.xml</param-value>
        </init-param>
        <!--配置参数:一启动就创建该servlet-->
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>dispatcherServlet</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>
    <!--3.设置中文乱码的问题-->
    <filter>
        <filter-name>characterEncodingFilter</filter-name>
        <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
        <!--设置字符集-->
        <init-param>
            <param-name>encoding</param-name>
            <param-value>UTF-8</param-value>
        </init-param>
    </filter>
    <filter-mapping>
        <filter-name>characterEncodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
</web-app>

测试类：

@Controller
@RequestMapping("/account")
public class AccountController {

    /*依赖注入*/
    @Autowired
    private AccountService accountService;

    /*视图解析*/
    @RequestMapping("/test")
    public String test(){
        System.out.println("控制层方法实现");
        accountService.findAll();
        return "success";
    }
}

四：MyBatis
配置mybatis的环境

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
          "http://mybatis.org/dta//mybatis-3-config.dtd">
<configuration>
    <!--1.配置环境-->
    <environments default="MysqL">
        <environment id="MysqL">
            <transactionManager type="JDBC"></transactionManager>
            <dataSource type="POOLED">
                <property name="driver" value="com.MysqL.cj.jdbc.Driver"/>
                <property name="url" value="jdbc:MysqL://127.0.0.1/girls?&amp; useSSL=false&amp; serverTimezone=UTC"/>
                <property name="username" value="root"/>
                <property name="password" value="123"/>
            </dataSource>
        </environment>
    </environments>
    <!--2.引入配置文件-->
    <mappers>
        <!--写法一：-->
<!--        <mapper resource="com/young/dao/xx.xml"></mapper>-->
        <!--写法二：扫描报下所有文件-->
        <package name="com.young.dao"/>
        <!--写法三：只扫描AccountDao-->
<!--        <mapper class="com.young.dao.AccountDao"></mapper>-->

    </mappers>
</configuration>

Dao的注解：

public interface AccountDao {

    //查询所有账户
    @Select("select * from admin")
    public List<Account> findAll();

    //存储用户信息
    @Insert("insert into admin (id,username,password)  values(#{id},#{username},#{password})")
    public void saveAccount(Account account);
}

测试类：

package com.young.dao;

import com.young.domain.Account;
import org.apache.ibatis.io.Resources;
import org.apache.ibatis.session.sqlSession;
import org.apache.ibatis.session.sqlSessionFactory;
import org.apache.ibatis.session.sqlSessionFactoryBuilder;
import org.junit.jupiter.api.Test;

import java.io.IOException;
import java.io.InputStream;
import java.util.List;

/**
 * Create by wuyang9769@163.com
 * Decorate:
 *
 * @author young_wu
 * @date 2020/11/23 0023 19:27
 * You can't be killed, it will only make you stronger
 */
class AccountDaoTest {
    /*测试查询*/
    @Test
    public void test() throws IOException {
        /*1.加载配置文件*/
        InputStream is = Resources.getResourceAsstream("sqlMapConfig.xml");
        /*2.创建sqlSessionFactory对象*/
        sqlSessionFactory  factory= new sqlSessionFactoryBuilder().build(is);
        /*3.创建sqlSession对象*/
        sqlSession session = factory.openSession();
        /*4.获取代理对象*/
        AccountDao mapper = session.getMapper(AccountDao.class);

        /*查询*/
        List<Account> list = mapper.findAll();
        for(Account account : list){
            System.out.println(account);
        }
        /*5.关闭资源*/
        is.close();
        session.close();

    }
    /*测试save*/
    @Test
    public void test1() throws IOException {
        Account account  = new Account();
        account.setId(77);
        account.setUsername("fuck");
        account.setPassword("qwqwq");
        /*1.加载配置文件*/
        InputStream is = Resources.getResourceAsstream("sqlMapConfig.xml");
        /*2.创建sqlSessionFactory对象*/
        sqlSessionFactory  factory= new sqlSessionFactoryBuilder().build(is);
        /*3.创建sqlSession对象*/
        sqlSession session = factory.openSession();
        /*4.获取代理对象*/
        AccountDao mapper = session.getMapper(AccountDao.class);
        //这一地步没有用，没有提交事务
        mapper.saveAccount(account);
        //提交事务
        session.commit();
        /*5.关闭资源*/
        is.close();
        session.close();
    }
}

五：整合SpringMVC & MyBatis
编写配置文件web.xml：

<!--1.Spring整合MyBatis框架-->
    <!--2.配置连接池-->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="com.MysqL.cj.jdbc.Driver"></property>
        <property name="jdbcUrl"     value="jdbc:MysqL://127.0.0.1/girls?&amp; useSSL=false&amp; serverTimezone=UTC"></property>
        <property name="user"        value="root"></property>
        <property name="password"    value="123"></property>
    </bean>
    <!--3.配置sqlSessionFactory工厂-->
    <bean id="factory" class="org.mybatis.spring.sqlSessionfactorybean">
        <property name="dataSource" ref="dataSource"></property>

    </bean>
    <!--4.配置AccountDao接口所在包-->
    <bean id="mapperScannerConfigurer"  class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage"  value="com.young.dao"></property>
    </bean>
</beans>

测试前：在AccoutDao加注解@Repository,且将sqlMapConfig.xml
测试类：

@Controller
@RequestMapping("/account")
public class AccountController {

    /*依赖注入*/
    @Autowired
    private AccountService accountService;

    /*视图解析*/
    @RequestMapping("/test")
    public String test(Model model){
        System.out.println("表现层方法实现");
        //调用service方法
        List<Account> list = accountService.findAll();
        model.addAttribute("list",list);
        return "success";
    }
}

JSP：

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
  <head>
    <title>$Title$</title>
  </head>
  <body>
  $END$
  <a href="account/test">this is index.jsp</a>
  </body>
</html>

success.jsp

<%@ page contentType="text/html;charset=UTF-8" language="java" isELIgnored="false" %>
<html>
<head>
    <title>Title</title>
    <%--引入JSTL标签库便利list--%>
    <%@ taglib prefix="c"  uri="http://java.sun.com/jsp/jstl/core"%>
</head>
<body>
<h1>this is success!</h1>
<c:forEach items="${list}" var="account">
    ${account.username}
</c:forEach>
</body>
</html>

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