SSM框架整合（IDEA版本，包含Maven配置）

于 2020-06-11 23:35:25 发布
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文章标签： java spring mysql
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本文链接：https://blog.youkuaiyun.com/u014330065/article/details/106699457
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本文使用IDEA进行搭建SSM整合

Maven 配置文件准备

首先准备maven配置文件，确保依赖包导入成功

<?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.shang</groupId>
    <artifactId>ssmbuild</artifactId>
    <version>1.0-SNAPSHOT</version>

    <dependencies>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version> 4.13</version>
            <scope>test</scope>
        </dependency>

        <!--数据库驱动-->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.49</version>
        </dependency>

        <!--数据库连接池-->
        <dependency>
            <groupId>com.mchange</groupId>
            <artifactId>c3p0</artifactId>
            <version>0.9.5.5</version>
        </dependency>

        <!--servlet jsp-->
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>servlet-api</artifactId>
            <version>3.0-alpha-1</version>
        </dependency>
        <dependency>
            <groupId>javax.servlet.jsp</groupId>
            <artifactId>jsp-api</artifactId>
            <version>2.2.1-b03</version>
        </dependency>
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>

        <!--mybatis-->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.5.5</version>
        </dependency>
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>2.0.5</version>
        </dependency>

        <!--spring-->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version> 5.2.6.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
            <version> 5.2.6.RELEASE</version>
        </dependency>

        <!--lombok-->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.18.12</version>
        </dependency>
    </dependencies>

    <!--静态资源导出问题-->
    <build>
        <resources>
            <resource>
                <directory>src/main/java</directory>
                <includes>
                    <include>**/*.properties</include>
                    <include>**/*.xml</include>
                </includes>
                <filtering>false</filtering>
            </resource>
            <resource>
                <directory>src/main/resources</directory>
                <includes>
                    <include>**/*.properties</include>
                    <include>**/*.xml</include>
                </includes>
                <filtering>false</filtering>
            </resource>
        </resources>
    </build>


</project>

1. 整合Mybatis

  • 编写mybatis.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>

    <typeAliases>
        <package name=""/>
    </typeAliases>
    <mappers>
        <mapper class=""/>
    </mappers>
</configuration>

配置文件中注意写入和

  • 创建database.properties文件
driver = com.mysql.jdbc.Driver
url = jdbc:mysql://localhost:3306/mysql?useSSL=false&useUnicode=true&characterEncoding=UTF-8&allowPublicKeyRetrieval=true
name = root
password = 123456

注意修改url路径

  • 将spring与mybatis整合，编写spring-dao.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"
       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">

    <!--关联数据库配置文件-->
    <context:property-placeholder location="classpath:db.properties"/>

    <!--连接池，使用c3p0-->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="${driver}"/>
        <property name="jdbcUrl" value="${url}"/>
        <property name="user" value="${name}"/> <!--当db.properties文件中用户名为username时，连接报错，为name是不报错-->
        <property name="password" value="${password}"/>

        <!--c3p0连接池私有属性，可以不配置-->
<!--        <property name="maxPoolSize" value="30"/>-->
<!--        <property name="minPoolSize" value="10"/>-->
        <!--关闭后不自动commit-->
<!--        <property name="autoCommitOnClose" value="false"/>-->
        <!--连接超时时间-->
<!--        <property name="checkoutTimeout" value="10000"/>-->
        <!--重试次数-->
<!--        <property name="acquireRetryAttempts" value="3"/>-->
        <!--60秒不用的连接自动关闭，测试过程中尝试了多次连接未关闭后数据库连接报错：too many connections-->
        <property name="maxIdleTime" value="60"/>
    </bean>

    <!--sqlSessionFactor-->
    <bean id="sqlSessionFactor" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="configLocation" value="classpath:mybatis-config.xml"/>
        <property name="dataSource" ref="dataSource"/>
    </bean>

    <!--配置Dao接口扫描包，动态实现Dao接口注入spring中-->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactor"/>
        <property name="basePackage" value="com.shang.dao"/>
    </bean>
</beans>
  • 在dao中编写接口进行测试，在同目录下编写接口的Mapper.xml文件
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
        PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.shang.dao.BookMapper">
   
</mapper>

注意namespace的路径地址，编写完后要到mybatis.xml文件中进行绑定

2.整合Spring

创建spring-servoce.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"
      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">

   <context:component-scan base-package="com.shang.service"/>

   <!--声明式事务配置-->
   <bean class="org.springframework.jdbc.datasource.DataSourceTransactionManager" id="transactionManager">
       <property name="dataSource" ref="dataSource"/>
   </bean>
</beans>

3.整合SpringMVC

  • 在IDEA中添加web支持，编写web.xml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">
  <!--配置DispatcherServlet-->
  <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:beans.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spring乱码过滤-->
  <filter>
      <filter-name>encoding</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>
  </filter>
  <filter-mapping>
      <filter-name>encoding</filter-name>
      <url-pattern>/*</url-pattern>
  </filter-mapping>

  <!--Session-->
  <session-config>
      <session-timeout>15</session-timeout>
  </session-config>
</web-app>
  • 编写spring-mvc.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:mvc="http://www.springframework.org/schema/mvc"
     xmlns:context="http://www.springframework.org/schema/context"
     xsi:schemaLocation="http://www.springframework.org/schema/beans
     http://www.springframework.org/schema/beans/spring-beans.xsd
     http://www.springframework.org/schema/mvc
     https://www.springframework.org/schema/mvc/spring-mvc.xsd
     http://www.springframework.org/schema/context
     https://www.springframework.org/schema/context/spring-context.xsd">

  <!--注解驱动-->
  <mvc:annotation-driven/>
  <!--静态资源过滤-->
  <mvc:default-servlet-handler/>
  <!--扫面包：controller-->
  <context:component-scan base-package="com.shang.controller"/>
  <!--视图解析器-->
  <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" id="viewResolver">
      <property name="prefix" value="/WEB-INF/jsp/"/>
      <property name="suffix" value=".jsp"/>
  </bean>
</beans>
  • 创建applicationContext.xml文件，整合各个spring配置文件
<?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.xsd">

    <import resource="spring-mvc.xml"/>
    <import resource="spring-dao.xml"/>
    <import resource="spring-service.xml"/>
</beans>

总结

  • 以上文件中，内容基本不需要改变，要注意各个文件中的命名空间问题

  • 在整合测试中，database.propertise文件使用username字段连接数据库失败，改名name字段连接成功

框架整合测试博客

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