ssm springmvc spring mybatis 整合

爱被打了一巴掌 2022-03-25 06:56 204阅读 0赞

### 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 ###

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## 关于pom文件的依赖，本人总共导入十个。 ##

<dependencies>
        
        <dependency>
          <groupId>junit</groupId>
          <artifactId>junit</artifactId>
          <version>4.12</version>
          <scope>test</scope>
        </dependency>
        
        <dependency>
          <groupId>org.mybatis</groupId>
          <artifactId>mybatis</artifactId>
          <version>3.4.5</version>
        </dependency>
        
        <dependency>
          <groupId>mysql</groupId>
          <artifactId>mysql-connector-java</artifactId>
          <version>5.1.43</version>
        </dependency>
        
        <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-webmvc</artifactId>
          <version>4.3.10.RELEASE</version>
        </dependency>
    
        
        <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-jdbc</artifactId>
          <version>4.3.10.RELEASE</version>
        </dependency>
        
        <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-aspects</artifactId>
          <version>4.3.10.RELEASE</version>
        </dependency>
        
        <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-context</artifactId>
          <version>4.3.10.RELEASE</version>
        </dependency>
        
        <dependency>
          <groupId>org.mybatis</groupId>
          <artifactId>mybatis-spring</artifactId>
          <version>1.3.1</version>
        </dependency>
    
        
        <dependency>
          <groupId>com.mchange</groupId>
          <artifactId>c3p0</artifactId>
          <version>0.9.5.1</version>
        </dependency>
        
        <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">
    
        
        <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>
    
        
        <bean id="SqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
                <property name="dataSource" ref="dataSource"></property>
                
                <property name="typeAliasesPackage" value="com.ssm.model"></property>
                
                <property name="mapperLocations" value="classpath:com/ssm/model/*.xml"></property>
        </bean>
    
        
        <bean id="MapperScannerConfigurer" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
            <property name="basePackage" value="com/ssm/mapper"></property>
        </bean>
    
        
        <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
                
                <property name="dataSource" ref="dataSource"></property>
        </bean>
    
    
        
        <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>
    
        
        <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">
    
                
                <context:component-scan base-package="com.ssm"></context:component-scan>
    
                
                <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>
    
      
      <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:applicationContext-config.xml</param-value>
      </context-param>
      
      
      <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。

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## 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 ##

![20190119113538338.jpg][]

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[20190119113538338.jpg]: /images/20220325/5c95893a95fc47c6b9cb705eb4a1903a.png