java增强: ssm框架整合

忘是亡心i 2022-05-11 02:40 224阅读 0赞

1.  整合思路: 各组件的关联关系
2.  配置文件: 组合各组件的关系
3.  ssm的使用:   jsp + jstl + servlet = mysql的curd操作

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##  part1: 组织配置文件  (整合ssm) ##

使用idea 新建module-->java web--->add framework support: maven, 项目结构如下

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第一步:  使用maven 管理jar包依赖, 配置pomx.xml如下

<dependency>
                <groupId>junit</groupId>
                <artifactId>junit</artifactId>
                <version>4.11</version>
            </dependency>
      
            <dependency>
                <groupId>mysql</groupId>
                <artifactId>mysql-connector-java</artifactId>
                <version>5.1.17</version>
            </dependency>
            <dependency>
                <groupId>org.mybatis</groupId>
                <artifactId>mybatis</artifactId>
                <version>3.2.1</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>
            </dependency>
    
    
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-context-support</artifactId>
                <version>4.3.5.RELEASE</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-tx</artifactId>
                <version>4.3.5.RELEASE</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-jdbc</artifactId>
                <version>4.3.5.RELEASE</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-webmvc</artifactId>
                <version>4.3.5.RELEASE</version>
            </dependency>
            <dependency>
                <groupId>org.aspectj</groupId>
                <artifactId>aspectjweaver</artifactId>
                <version>1.8.10</version>
            </dependency>
            <dependency>
                <groupId>org.aspectj</groupId>
                <artifactId>aspectjrt</artifactId>
                <version>1.6.1</version>
            </dependency>
    
     
            <dependency>
                <groupId>javax.servlet</groupId>
                <artifactId>jstl</artifactId>
                <version>1.2</version>
            </dependency>

第二步: 配置spring +mybatis

( 在resource文件夹创建mybatis和spring的配置文件,  在bean包创建javabean, 在service包配置service类 )

A,   resource文件夹: mybatis-config.xml,  UserMapper.xml,   beans.xml

<?xml version = "1.0" encoding="UTF-8" ?>
    <!DOCTYPE configuration
            PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
            "http://mybatis.org/dtd/mybatis-3-config.dtd">
    <configuration>
    
        
        <typeAliases>
            <typeAlias type="com.bean.User" alias="_user" />
        </typeAliases>
    
        <mappers>
            <mapper resource="UserMapper.xml"/>
        </mappers>
    </configuration>

<?xml version="1.0" encoding="UTF-8" ?>
    <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
            "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
    
    
    <mapper namespace="users">
        
        <insert id="insert" useGeneratedKeys="true" keyProperty="id">
    	insert into users2(name,sex) values(#{name},#{sex})
        </insert>
    
        <update id="update" >
            update users2 set name=#{name}, sex=#{sex} where id=#{id}
        </update>
    
        <select id="selectById" resultType="_user" >
            select * from users2 where id=#{id}
        </select>
        <select id="selectAll" resultType="_user" >
            select * from users2
        </select>
    
        <delete id="delete">
            delete from users2 where id=#{id}
        </delete>
    </mapper>

<?xml version="1.0" encoding="UTF-8"?>
    <beans xmlns="http://www.springframework.org/schema/beans"
           xmlns:tx="http://www.springframework.org/schema/tx"
           xmlns:aop="http://www.springframework.org/schema/aop"
           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-4.3.xsd
                   http://www.springframework.org/schema/tx
                   http://www.springframework.org/schema/tx/spring-tx-4.3.xsd
                   http://www.springframework.org/schema/aop
                   http://www.springframework.org/schema/aop/spring-aop-4.3.xsd">
    
        
        <tx:advice id="txAdvice" transaction-manager="txManager">
            <tx:attributes>
                <tx:method name="insert*" isolation="DEFAULT" propagation="REQUIRED" />
                <tx:method name="update*" isolation="DEFAULT" propagation="REQUIRED" />
                <tx:method name="delete*" isolation="DEFAULT" propagation="REQUIRED" />
                <tx:method name="select*" isolation="DEFAULT" propagation="REQUIRED" read-only="true"/>
                <tx:method name="*" isolation="DEFAULT" propagation="REQUIRED" />
            </tx:attributes>
        </tx:advice>
        <aop:config>
            <aop:advisor advice-ref="txAdvice" pointcut="execution(* *..*Service.*(..))" />
        </aop:config>
        
        <bean id="txManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
            <property name="dataSource" ref="dataSource" />
        </bean>
    
        
        <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
            <property name="driverClass" value="com.mysql.jdbc.Driver"></property>
            <property name="jdbcUrl" value="jdbc:mysql://localhost:3306/db"></property>
            <property name="user" value="root"></property>
            <property name="password" value="daitoue"></property>
    
            <property name="initialPoolSize" value="3"></property>
            <property name="maxPoolSize" value="10"></property>
        </bean>
    
        
        <bean id="sessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
            <property name="dataSource" ref="dataSource"></property>
            <property name="configLocation" value="classpath:mybatis-config.xml"/>          
        </bean>
    
        
        <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
            <property name="basePackage" value="com.dao" />
            <property name="sqlSessionFactoryBeanName" value="sessionFactory"/>
        </bean>
    </beans>

第二步:

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