ssm springmvc spring mybatis 整合

由于是一次简单的ssm项目整合，就一次从简，为了体现ssm的整个流程

关于pom文件的依赖，本人总共导入十个。

<dependencies>
    <!--单元测试的依赖-->
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.12</version>
      <scope>test</scope>
    </dependency>
    <!--MyBatis的依赖-->
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis</artifactId>
      <version>3.4.5</version>
    </dependency>
    <!--MySQL的依赖-->
    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>5.1.43</version>
    </dependency>
    <!--SpringMVC的依赖-->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-webmvc</artifactId>
      <version>4.3.10.RELEASE</version>
    </dependency>

    <!--spring连接数据库的依赖-->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-jdbc</artifactId>
      <version>4.3.10.RELEASE</version>
    </dependency>
    <!--spring配置切面的依赖-->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-aspects</artifactId>
      <version>4.3.10.RELEASE</version>
    </dependency>
    <!--spring的上下文的依赖-->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-context</artifactId>
      <version>4.3.10.RELEASE</version>
    </dependency>
    <!--Spring和MyBatis和整合依赖-->
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis-spring</artifactId>
      <version>1.3.1</version>
    </dependency>

    <!--C3p0的依赖-->
    <dependency>
      <groupId>com.mchange</groupId>
      <artifactId>c3p0</artifactId>
      <version>0.9.5.1</version>
    </dependency>
    <!--servlet的依赖-->
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>javax.servlet-api</artifactId>
      <version>4.0.0</version>
      <scope>provided</scope>
    </dependency>
  </dependencies>

接下来是三个配置文件的展示：applicationContext-common.xml，springmvc-config.xml和web.xml

applicationContext-common.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: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/tx http://www.springframework.org/schema/tx/spring-tx.xsd">

    <!--配置数据源-->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="user" value="root"></property>
        <property name="password" value="123"></property>
        <property name="driverClass" value="com.mysql.jdbc.Driver"></property>
        <property name="jdbcUrl" value="jdbc:mysql://localhost:3306/111?charactorEnconding=utf-8"></property>
        <property name="initialPoolSize" value="3"></property>
        <property name="maxPoolSize" value="20"></property>
    </bean>

    <!--spring代理产生sqlsessionfactory-->
    <bean id="SqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
            <property name="dataSource" ref="dataSource"></property>
            <!--别名配置-->
            <property name="typeAliasesPackage" value="com.ssm.model"></property>
            <!--映射文件配置(用注解就不需要,不用注解就需要配置)-->
            <property name="mapperLocations" value="classpath:com/ssm/model/*.xml"></property>
    </bean>

    <!--配置mapper借口扫描-->
    <bean id="MapperScannerConfigurer" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com/ssm/mapper"></property>
    </bean>

    <!--配置事物管理-->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
            <!--引用数据源-->
            <property name="dataSource" ref="dataSource"></property>
    </bean>


    <!--配置切面-->
    <tx:advice id="txAdvice" transaction-manager="transactionManager">
        <tx:attributes>
            <tx:method name="add*" propagation="REQUIRED"/>
            <tx:method name="update*" propagation="REQUIRED"/>
            <tx:method name="delete*" propagation="REQUIRED"/>
            <tx:method name="*" read-only="true"/>
        </tx:attributes>
    </tx:advice>

    <!--配置切点-->
    <aop:config>
        <aop:pointcut id="pointCut" expression="execution(* com.ssm.service.*.*(..))"></aop:pointcut>
        <aop:advisor advice-ref="txAdvice" pointcut-ref="pointCut"></aop:advisor>
    </aop:config>

</beans>

springmvc-config.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:context="http://www.springframework.org/schema/context"
       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/context http://www.springframework.org/schema/context/spring-context.xsd">

            <!--配置全局注解扫描-->
            <context:component-scan base-package="com.ssm"></context:component-scan>

            <!--视图解析-->
            <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
                <property name="prefix" value="/"></property>
                <property name="suffix" value=".jsp"></property>
            </bean>

</beans>

web.xml

<!DOCTYPE web-app PUBLIC
 "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
 "http://java.sun.com/dtd/web-app_2_3.dtd" >

<web-app>
  <display-name>Archetype Created Web Application</display-name>

  <!--加载spring环境-->
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:applicationContext-config.xml</param-value>
  </context-param>
  
  <!--监听器-->
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>


  <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-config.xml</param-value>
    </init-param>
  </servlet>
  
  <servlet-mapping>
    <servlet-name>springmvc</servlet-name>
    <url-pattern>*.action</url-pattern>
  </servlet-mapping>


</web-app>

下面的是允许xml文件在java路径中编译，放在pom文件中

其中的整个resources标签即是需要的，如果在model中没有xml文件，来实现mapper接口中的方法，即只是在mapper的接口中用的注解，这段代码就不需要，如果没有在mapper接口中采用注解，这段代码就需要加上。

下面的是关于java路径中的各个文件

model包中的Book类

package com.ssm.model;

public class Book {
    private Integer bid;
    private String bname;

    public Book() {
    }

    public Book(Integer bid, String bname) {
        this.bid = bid;
        this.bname = bname;
    }

    public Integer getBid() {
        return bid;
    }

    public void setBid(Integer bid) {
        this.bid = bid;
    }

    public String getBname() {
        return bname;
    }

    public void setBname(String bname) {
        this.bname = bname;
    }


    @Override
    public String toString() {
        return "Book{" +
                "bid=" + bid +
                ", bname='" + bname + '\'' +
                '}';
    }
}

model包中的Book.xml文件

<!DOCTYPE mapper
        PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.ssm.mapper.BookMapper">

    <select id="queryBook" resultType="Book">
        select * from book
    </select>

</mapper>

mapper包中的BookMapper文件

package com.ssm.mapper;

import com.ssm.model.Book;
import org.springframework.stereotype.Service;

import java.util.List;

@Service
public interface BookMapper {
    //查询数据
     List<Book> queryBook();

}

controller包中的BookController文件

package com.ssm.controller;

import com.ssm.model.Book;
import com.ssm.service.BookService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

@Controller
public class BookController {

    @Autowired
    private BookService bs;

    @RequestMapping("test")
    public String test(){
        for (Book b: bs.queryBook() ) {
            System.out.println(b.getBname());
        }
        return "success";
    }

}

service包中的BookService文件

package com.ssm.service;

import com.ssm.model.Book;

import java.util.List;

public interface BookService {

    //查询数据
    List<Book> queryBook();
}

service包中的impl实现类，BookServiceImpl文件

package com.ssm.service.impl;

import com.ssm.mapper.BookMapper;
import com.ssm.model.Book;
import com.ssm.service.BookService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;

@Service("BookService")
public class BookServiceImpl implements BookService {

    @Autowired
    private BookMapper bm;

    @Override
    public List<Book> queryBook() {
        return bm.queryBook();
    }



}

到此整个流程就基本结束了，ssm就能够运行了，下面的输出是执行了之后的结果，为查询数据