SSM 框架 整合<SpringMVC+Spring+MyBatis>

一 框架的搭建
1.建立一个maven项目

2.建立五个module（entity，dao,service,action,web-view）

3.给予它们之间的依赖关系

dao-->entity　　service-->entity,dao

action-->service,entity　　web-view-->entity,dao,service,action

4.第三方的依赖包：

为了 使它们的版本 一样 兼容我们可以在依赖之前 加上：

<dependencies>
    <!-- https://mvnrepository.com/artifact/org.springframework/spring-context -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-context</artifactId>
        <version>5.1.1.RELEASE</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.springframework/spring-core -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-core</artifactId>
        <version>5.1.1.RELEASE</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.springframework/spring-beans -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-beans</artifactId>
        <version>5.1.1.RELEASE</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.springframework/spring-webmvc -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-webmvc</artifactId>
        <version>5.1.1.RELEASE</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.springframework/spring-webmvc -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-web</artifactId>
        <version>5.1.1.RELEASE</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-databind -->
    <dependency>
        <groupId>com.fasterxml.jackson.core</groupId>
        <artifactId>jackson-databind</artifactId>
        <version>2.9.7</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-core -->
    <dependency>
        <groupId>com.fasterxml.jackson.core</groupId>
        <artifactId>jackson-core</artifactId>
        <version>2.9.7</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-annotations -->
    <dependency>
        <groupId>com.fasterxml.jackson.core</groupId>
        <artifactId>jackson-annotations</artifactId>
        <version>2.9.7</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/javax.servlet/jstl -->
    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>jstl</artifactId>
        <version>1.2</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.mybatis/mybatis -->
    <dependency>
        <groupId>org.mybatis</groupId>
        <artifactId>mybatis</artifactId>
        <version>3.4.6</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.mybatis/mybatis-spring -->
    <dependency>
        <groupId>org.mybatis</groupId>
        <artifactId>mybatis-spring</artifactId>
        <version>1.3.2</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.springframework/spring-jdbc -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-jdbc</artifactId>
        <version>5.1.1.RELEASE</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/com.mchange/c3p0 -->
    <dependency>
        <groupId>com.mchange</groupId>
        <artifactId>c3p0</artifactId>
        <version>0.9.5.2</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.springframework/spring-tx -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-tx</artifactId>
        <version>5.1.1.RELEASE</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java -->
    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>8.0.13</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/junit/junit -->
    <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <version>4.12</version>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>org.aspectj</groupId>
        <artifactId>aspectjweaver</artifactId>
        <version>1.9.1</version>
    </dependency>
    <dependency>
        <groupId>org.aspectj</groupId>
        <artifactId>aspectjrt</artifactId>
        <version>1.9.1</version>
    </dependency>
    <dependency>
        <groupId>aopalliance</groupId>
        <artifactId>aopalliance</artifactId>
        <version>1.0</version>
    </dependency>
</dependencies>

不然就直接复制上面的代码 

如果你的数据库是Oracle的话就要再依赖一个ojdbc8的依赖：

<dependency>
    <groupId>com.oracle</groupId>
    <artifactId>ojdbc8</artifactId>
    <version>11.2.0.1.0</version>
</dependency>

 在下已经调试好了 各个都非常的兼容 不会冲突 

当我们从网上 获得的字段时，可以将版本号 的字段 就用  ${spring-version} 来使其兼容，其他同理

5配置SSM

在web-view的pom.xml里添加<packaging>war<packaging>因为Tomcat执行的是war包

5.0新建一个webapp目录，再该目录下再建一个WEB-INF的目录下添加一个web.xml的配置文件：

里面的代码就是给予Tomact需要的一些驱动：

<?xml version="1.0" encoding="UTF-8"?>

<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1">

 

<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>

</servlet>

 

<servlet-mapping>

<servlet-name>springmvc</servlet-name>

<url-pattern>/</url-pattern>

</servlet-mapping>

 

<context-param>

<param-name>contextConfigLocation</param-name>

<param-value>classpath:applicaitonContext.xml</param-value>

</context-param>

<!-- Spring监听器 -->

<listener>

<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>

</listener>

 

<!-- 界面添加入数据时防止乱码-->

<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>

 

 

</web-app>

 

 

由于原idea的默认路径中没有我们添加的文件的路径和名称，所以我们要给它一个识别的配置信息：

<build>
    <resources>
        <resource>
            <directory>resource</directory>
        </resource>
    </resources>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-war-plugin</artifactId>
            <version>3.2.2</version>
            <configuration>
                <webResources>
                    <resource>
                        <directory>webapp</directory>
                    </resource>
                </webResources>
            </configuration>
        </plugin>
    </plugins>
</build>

5.1新建一个resource目录（用来装IOC容器，数据库的链接文件，springmvc的配置文件）：

1、 配置jdbc.properties
在war包中module(web-view-module)的resources目录，添加jdbc.properties
jdbc.driverClassName=com.mysql.cj.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/batis?serverTimezone=GMT%2B8&useSSL=false&allowPublicKeyRetrieval=true
jdbc.username=root
jdbc.password=123456

2、 配置Spring的配置文件applicationContext.xml（包含融入mybatis相关内容）
在war包中module(web-view-module)的resources目录，添加applicationContext.xml
a. 配置自动扫描<context:component-scan>
b. 配置引入jdbc.properties文件（context:property-placeholder）
c. 配置c3p0的DataSource

d. 配置sqlSessionFactory
e. 配置MapperScannerConfigurer

f. 配置transactionManager
g. 配置<tx:annotation-driven>实现使用注解来执行事务

3、 配置SpringMVC的配置文件springmvc.xml
在war包中module(web-view-module)的resources目录，添加springmvc.xml
a． 配置自动扫描包<context:component-scan>

b． 配置注解驱动<mvc:annotation-driven> （@ResponseBody需要用上）
默认使用jackson
c． 配置试图解释器<bean class=”… InternalResourceViewResolver”>

4、 配置web容器一启动，就启动SpringMVC
在web.xml添加1个Servelt（DispatcherServlet，关联上springmvc.xml）
启动tomcat可以见到这一句话：
initServletBean FrameworkServlet 'springmvc': initialization started
5、 配置web容器一启动, 就启动Spring。
a. 配置<context-param>contextConfigLocation定义applicationContext.xml
b. 配置一个ContextLoaderListener（就是WebApplicationContext）

============================================================

这样，一个SSM的框架就