SSM整合案例演示（带注释）

其他 2021-03-30 18:31:58 阅读次数: 0

1 SSM 整合环境准备

1.1 创建库表

(1) 创建表空间、用户、用户授权

这里是Oracle数据库

--1.创建表空间
create tablespace itheima 
datafile 'c:/itheima.dbf' size 10m 
autoextend on next 10m;

--2.创建用户
create user itheima
identified by itheima
default tablespace itheima;

--3.给用户赋权限
grant dba to itheima;

​

建表语句：

--4.【产品表】
CREATE TABLE product(
  id int PRIMARY KEY,
  productNum VARCHAR2(50) NOT NULL UNIQUE,
  productName VARCHAR2(50),
  cityName VARCHAR2(50),
  DepartureTime date,
  productPrice NUMERIC(8,2),
  productDesc VARCHAR2(500),
  productStatus INT
);
-- Create sequence 
create sequence SEQ_PRODUCT
minvalue 1
maxvalue 999999999
start with 1
increment by 1
cache 10;

1.2 搭建系统架构

1.2.1 ssm-main 父项目

1.2.1.1 创建项目

(1) 创建Module，

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(2) 下一步，

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(3) 输入项目名称，

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(4) 最后

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1.2.1.2 pom.xml

<properties>
        <spring.version>5.0.2.RELEASE</spring.version>
        <spring.aspectj>1.6.8</spring.aspectj>
        <slf4j.version>1.6.6</slf4j.version>
        <log4j.version>1.2.12</log4j.version>
        <shiro.version>1.2.3</shiro.version>
        <mysql.version>5.1.6</mysql.version>
        <mybatis.version>3.4.5</mybatis.version>
        <spring.security.version>5.0.1.RELEASE</spring.security.version>
    </properties>

    <dependencies>
        <!-- spring -->
        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjweaver</artifactId>
            <version>${spring.aspectj}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aop</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context-support</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-orm</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-beans</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-tx</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
            <scope>test</scope>
        </dependency>

<dependency>
    <groupId>com.oracle</groupId>
    <artifactId>ojdbc14</artifactId>
    <version>10.2.0.4.0</version>
</dependency>

        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <version>3.1.0</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>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.1.10</version>
        </dependency>
        <dependency>
            <groupId>com.github.pagehelper</groupId>
            <artifactId>pagehelper</artifactId>
            <version>5.1.2</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-web</artifactId>
            <version>${spring.security.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-config</artifactId>
            <version>${spring.security.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-core</artifactId>
            <version>${spring.security.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-taglibs</artifactId>
            <version>${spring.security.version}</version>
        </dependency>
        <dependency>
            <groupId>javax.annotation</groupId>
            <artifactId>jsr250-api</artifactId>
            <version>1.0</version>
        </dependency>
    </dependencies>
</project>

1.2.2 ssm-domain

1.2.2.1 创建项目

选择Module

1.2.2.2 实体类

创建com.kmt.daomain包

public class Product {
    
    
    private Long id;
    private String productNum;
    private String productName;
    private String cityName;
    private Date departureTime;
    private double productPrice;
    private String productDesc;
    // 0 关闭； 1 开启
    private Integer productStatus;

1.2.3 ssm-dao

1.2.3.1 创建项目

添加依赖

<?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">
    <parent>
        <artifactId>ssm-main</artifactId>
        <groupId>com.kmt</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>ssm-dao</artifactId>


    <dependencies>
        <dependency>
            <groupId>com.kmt</groupId>
            <artifactId>ssm-domain</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>
    </dependencies>
</project>

1.2.3.2 接口

创建com.kmt.dao.IProduct包

public interface IProductDao {
    
    
    /**
     * 1. 查询全部
     */
@Select("select * from product")

    List<Product> findAll();
}

1.2.4 ssm-service

1.2.4.1 创建项目

添加依赖

<?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">
    <parent>
        <artifactId>ssm-main</artifactId>
        <groupId>com.kmt</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>ssm-service</artifactId>


    <dependencies>
        <dependency>
            <groupId>com.kmt</groupId>
            <artifactId>ssm-dao</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>

        <!--mybatis支持包-->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.4.4</version>
        </dependency>

    </dependencies>
</project>

1.2.4.2 接口

在这里插入图片描述

创建包com.kmt.service包

public interface IProductService {
    
    
    /**
     * 1. 查询全部
     */
    List<Product> findAll();
}

1.2.4.3 实现

创建包com.kmt.service.impl

// 对象加入容器，默认bena的id是类名称，且第一个字母小写（productServiceImpl）
@Service
// 使用Spring声明式事务注解支持
@Transactional
public class ProductServiceImpl implements IProductService {
    
    

    // 注入dao
    @Autowired
    private IProductDao productDao;

    @Override
    public List<Product> findAll() {
    
    
        return productDao.findAll();
    }
}

1.2.5 ssm-web

1.2.5.1 创建项目

添加依赖

<?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">  
  <parent> 
    <artifactId>ssm-main</artifactId>  
    <groupId>com.kmt</groupId>  
    <version>1.0-SNAPSHOT</version> 
  </parent>  
  <modelVersion>4.0.0</modelVersion>  
  <artifactId>ssm-web</artifactId>
  <packaging>war</packaging>
  <dependencies>
    <dependency>
      <groupId>com.kmt</groupId>
      <artifactId>ssm-service</artifactId>
      <version>1.0-SNAPSHOT</version>
    </dependency>


  </dependencies>
</project>

1.2.5.2 web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" version="2.5">
  <display-name>ssm_pages</display-name>
  <welcome-file-list>
    <welcome-file>index.html</welcome-file>
    <welcome-file>index.htm</welcome-file>
    <welcome-file>index.jsp</welcome-file>
    <welcome-file>default.html</welcome-file>
    <welcome-file>default.htm</welcome-file>
    <welcome-file>default.jsp</welcome-file>
  </welcome-file-list>

  <!--配置(ServletContext)监听器,在项目启动时候就加载配置文件。Spring容器创建-->
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>
  <!-- 配置加载类路径的配置文件 -->
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:applicationContext.xml</param-value>
  </context-param>

  <!-- 配置前端控制器：服务器启动必须加载，需要加载springmvc.xml配置文件
所有的SpringMVC请求，必须经过这里。所有的SpringMVC请求，必须经过这里-->
  <servlet>
    <servlet-name>dispatcherServlet</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <!-- 配置初始化参数，创建完DispatcherServlet对象，加载springmvc.xml配置文件 -->
    <init-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>classpath:springMVC.xml</param-value>
    </init-param>
    <!-- 服务器启动的时候，让DispatcherServlet对象创建 -->
<!--启动时候创建servlet(数字越小越先加载)-->
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>dispatcherServlet</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>
  <!-- 配置解决中文乱码的过滤器 -->
  <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>
  </filter>
  <filter-mapping>
    <filter-name>characterEncodingFilter</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>
</web-app>

1.2.5.3 jdbc.properties

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resource包下创建jdbc.properties

jdbc.driver=oracle.jdbc.OracleDriver
jdbc.url=jdbc:oracle:thin:@192.168.20.3:1521:orcl
jdbc.username=itheima
jdbc.password=itheima
jdbc.initialSize=3
jdbc.maxActive=10

1.2.5.4 applicationContext.xml

resource包下创建applicationContext.xml

<?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 http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">

    <!--1. 扫描service包-->
    <context:component-scan base-package="com.itheima.service"></context:component-scan>

    <!--加载jdbc.properties配置文件-->
    <context:property-placeholder location="classpath:jdbc.properties"></context:property-placeholder>

    <!--2. 创建连接池-->
    <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>
        <property name="initialSize" value="${jdbc.initialSize}"></property>
        <property name="maxActive" value="${jdbc.maxActive}"></property>
    </bean>

    <!--3. 创建SqlSessionFactoryBean，注入连接池，-->
<!--Spring整合Mybatis关键配置：SqlSessionFactoryBean。原来是要通过java的代码连接数据库。这里可以引入很多东西，包括分页插件等-->
    <bean class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"></property>
     </bean>

    <!--4. 创建包扫描器，指定扫描的dao接口所在包-->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.itheima.dao"></property>
    </bean>

    <!--5. Spring提供的事务管理器-->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"></property>
    </bean>

    <!--6. 开启声明式事务注解支持，这样就可以使用@Transactional注解
这里是通过注解的方式，有可以通过AOP配置的方式-->
    <tx:annotation-driven transaction-manager="transactionManager"></tx:annotation-driven>

</beans>

1.2.5.5 springMVC.xml

​ resource包下创建springMVC.xml

<?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 http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd">

    <!-- 扫描controller的注解，别的不扫描 -->
    <context:component-scan base-package="com.itheima.controller"></context:component-scan>

    <!-- 配置视图解析器 -->
    <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <!-- JSP文件所在的目录 -->
        <property name="prefix" value="/pages/" />
        <!-- 文件的后缀名 -->
        <property name="suffix" value=".jsp" />
    </bean>

    <!-- 开启对SpringMVC注解的支持，自动加载SpringMVC中的处理映射器和处理适配器
自动加载SpringMVC中的处理映射器和处理适配器-->
    <mvc:annotation-driven />

    <!-- 设置静态资源不过滤 -->
    <mvc:resources location="/css/" mapping="/css/**" />
    <mvc:resources location="/img/" mapping="/img/**" />
    <mvc:resources location="/plugins/" mapping="/plugins/**" />

</beans>

1.2.6 测试

id=“viewResolver” class=“org.springframework.web.servlet.view.InternalResourceViewResolver”>




<!-- 开启对SpringMVC注解的支持，自动加载SpringMVC中的处理映射器和处理适配器

自动加载SpringMVC中的处理映射器和处理适配器–>
<mvc:annotation-driven />

<!-- 设置静态资源不过滤 -->
<mvc:resources location="/css/" mapping="/css/**" />
<mvc:resources location="/img/" mapping="/img/**" />
<mvc:resources location="/plugins/" mapping="/plugins/**" />


 

### 1.2.6    测试

启动OK，说明SSM整合基本完成。

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