一、环境准备

1.1 创建表

产品表信息描述

序号	字段名称	字段名称	字段描述
1	id	varchar2(32)	无意义，主键uuid
2	productNum	varchar2(50)	产品编号，唯一，不为空
3	productName varchar2(50)	产品名称（路线名称）	varchar2(50)
4	cityName	varchar2(50)	出发城市
5	DepartureTime	timestamp	出发时间
6	productPrice	number	产品价格
7	productDesc	varchar2(500)	产品描述
8	productStatus	int	状态(0 关闭 1 开启)

创建表sql

CREATE TABLE product( 
	id varchar2(32) default SYS_GUID() PRIMARY KEY, 
	productNum VARCHAR2(50) NOT NULL, 
	productName VARCHAR2(50), 
	cityName VARCHAR2(50), 
	DepartureTime timestamp, 
	productPrice Number, 
	productDesc VARCHAR2(500), 
	productStatus INT, 
	CONSTRAINT product UNIQUE (id, productNum) 
)
insert into PRODUCT (id, productnum, productname, cityname, departuretime, productprice, productdesc, productstatus) values ('676C5BD1D35E429A8C2E114939C5685A', 'itcast-002', '北京三日游', '北京', to_timestamp('10- 10-2018 10:10:00.000000', 'dd-mm-yyyy hh24:mi:ss.ff'), 1200, '不错的旅行', 1); 
insert into PRODUCT (id, productnum, productname, cityname, departuretime, productprice, productdesc, productstatus) values ('12B7ABF2A4C544568B0A7C69F36BF8B7', 'itcast-003', '上海五日游', '上海', to_timestamp('25- 04-2018 14:30:00.000000', 'dd-mm-yyyy hh24:mi:ss.ff'), 1800, '魔都我来了', 0); 
insert into PRODUCT (id, productnum, productname, cityname, departuretime, productprice, productdesc, productstatus) values ('9F71F01CB448476DAFB309AA6DF9497F', 'itcast-001', '北京三日游', '北京', to_timestamp('10- 10-2018 10:10:00.000000', 'dd-mm-yyyy hh24:mi:ss.ff'), 1200, '不错的旅行', 1);

1.2 创建maven工程

在这里插入图片描述

创建子模块
itcast-ssm-web itcast-ssm-domain itcast-ssm-service itcast-ssm-dao itcast-ssm-utils,其中创建itcast-ssm-web时注意我们选择一个web工程

1.3 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>com.itheima.heima_ssm</groupId>
    <artifactId>heima_ssm</artifactId>
    <packaging>pom</packaging>
    <version>1.0-SNAPSHOT</version>


    <properties>
        <spring.version>5.0.2.RELEASE</spring.version>
        <slf4j.version>1.6.6</slf4j.version>
        <log4j.version>1.2.12</log4j.version>
        <oracle.version>11.2.0.1.0</oracle.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>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-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>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>${mybatis.version}</version>
        </dependency>
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>1.3.0</version>
        </dependency>
        <dependency>
            <groupId>c3p0</groupId>
            <artifactId>c3p0</artifactId>
            <version>0.9.1.2</version>
            <type>jar</type>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>com.github.pagehelper</groupId>
            <artifactId>pagehelper</artifactId>
            <version>5.1.2</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-web</artifactId>
            <version>${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>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>8.0.25</version>
        </dependency>

        <dependency>
            <groupId>javax.annotation</groupId>
            <artifactId>jsr250-api</artifactId>
            <version>1.0</version>
        </dependency>
    </dependencies>
    <build>
        <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>

    <modules>
        <module>heima_ssm_service</module>
        <module>heima_ssm_dao</module>
        <module>heima_ssm_domain</module>
        <module>heima_ssm_utils</module>
        <module>heima_ssm_web</module>
    </modules>
</project>

1.4编写实体类

public class Product { 
	private String id; // 主键 
	private String productNum; // 编号 唯一 
	private String productName; // 名称 
	private String cityName; // 出发城市 
	private Date departureTime; // 出发时间 
	private String departureTimeStr; 
	private double productPrice; // 产品价格 
	private String productDesc; // 产品描述 
	private Integer productStatus; // 状态 0 关闭 1 开启 
	private String productStatusStr; 
}

1.5遍写业务接口

public interface IProductService { 
	List<Product> findAll() throws Exception; 
}

1.6编写持久层接口

public interface IProductDao { 
	@Select("select * from product") 
	List<Product> findAll() throws Exception; 
}

二、SSM整合与产品查询

2.1 Spring环境搭建

2.1.1.编写Spring配置文件applicationContext.xml

<!-- 配置 spring 创建容器时要扫描的包 --> 
<!-- 开启注解扫描，管理service和dao --> 
<context:component-scan base-package="com.itheima.ssm.service"> </context:component-scan> 
<context:component-scan base-package="com.itheima.ssm.dao"> </context:component-scan>

2.1.2 使用注解配置业务层

@Service 
public class ProductServiceImpl implements IProductService{ 
	@Override 
	public List<Product> findAll() throws Exception { 
		return null; 
	} 
}

2.2 Spring MVC 环境搭建

2.2.1.web.xml配置Spring MVC核心控制器

<?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"
         version="3.1">

  <!-- 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>

  <!-- 配置监听器 -->
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>

  <!-- 前端控制器（加载classpath:springmvc.xml 服务器启动创建servlet） -->
  <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:spring-mvc.xml</param-value>
    </init-param>
    <!-- 服务器启动的时候，让DispatcherServlet对象创建 -->
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>dispatcherServlet</servlet-name>
    <url-pattern>*.do</url-pattern>
  </servlet-mapping>

  <!-- 解决中文乱码过滤器 -->
  <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>


  <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>
</web-app>

2.2.2 Spring MVC配置文件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"
       xmlns:aop="http://www.springframework.org/schema/aop"
       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
           http://www.springframework.org/schema/aop
		http://www.springframework.org/schema/aop/spring-aop.xsd
           ">

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

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

    <!-- 开启对SpringMVC注解的支持 -->
    <mvc:annotation-driven />

    <!--
        支持AOP的注解支持，AOP底层使用代理技术
        JDK动态代理，要求必须有接口
        cglib代理，生成子类对象，proxy-target-class="true" 默认使用cglib的方式
    -->
    <aop:aspectj-autoproxy proxy-target-class="true"/>

</beans>

2.2.3.编写Controller

ProductController

package com.itheima.ssm.controller;


import com.itheima.ssm.domain.Product;
import com.itheima.ssm.service.IProductService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;

import java.util.List;

@Controller
@RequestMapping("/product")
public class ProductController {

    @Autowired
    private IProductService productService;
    //产品添加
    @RequestMapping("/save.do")
    public String save(Product product){
        productService.save(product);
        return "redirect:findAll.do";
    }

    @RequestMapping("/findAll.do")
    public ModelAndView findAll() throws Exception{
        ModelAndView mv = new ModelAndView();
        List<Product> ps = productService.findAll();
        mv.addObject("productList", ps);
        mv.setViewName("product-list1");
        return mv;
    }
}

2.3 Spring与Spring MVC整合

  <!-- 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>

2.4 Spring与MyBatis整合

2.4.1 Spring接管mybatis的Session工厂

db.properties

jdbc.driver = com.mysql.cj.jdbc.Driver
jdbc.url = jdbc:mysql://localhost:3306/ssm?useUnicode=true&characterEncoding=utf-8
jdbc.username = root
jdbc.password = 123456

    <context:property-placeholder location="classpath:db.properties"/>
    <!-- 配置连接池 -->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="${jdbc.driver}" />
        <property name="jdbcUrl" value="${jdbc.url}" />
        <property name="user" value="${jdbc.username}" />
        <property name="password" value="${jdbc.password}" />
    </bean>
    <!-- 把交给IOC管理 SqlSessionFactory -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource" />
    </bean>

2.5 测试运行

2.5.1 编写jsp页面

2.5.1.1 请求发起页面 index.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> 
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 
<html> 
	<head> 
	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 
	<title>主页</title> 
	</head> 
	<body> 
		<a href="${pageContext.request.contextPath}/product/findAll.do">查询产品信息</a> 
	</body> 
</html>