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SSM【史上最详细整合】(一)

更新时间:2022-10-04 15:18:17

导入开发包

  • asm-3.2.0.RELEASE.jar
  • asm-3.3.1.jar
  • c3p0-0.9.jar
  • cglib-2.2.2.jar
  • com.springsource.net.sf.cglib-2.2.0.jar
  • com.springsource.org.aopalliance-1.0.0.jar
  • com.springsource.org.apache.commons.logging-1.1.1.jar
  • com.springsource.org.aspectj.weaver-1.6.8.RELEASE.jar
  • jackson-core-asl-1.7.2.jar
  • jackson-mapper-asl-1.7.2.jar
  • javassist-3.17.1-GA.jar
  • javax.servlet.jsp.jstl.jar
  • jsf-api.jar
  • jsf-impl.jar
  • jstl-impl.jar
  • junit.jar
  • log4j-1.2.17.jar
  • mybatis-3.2.2.jar
  • mybatis-spring-1.2.0.jar
  • mysql-connector-java-5.1.26-bin.jar
  • org.hamcrest.core_1.1.0.v20090501071000.jar
  • org.springframework.transaction-3.2.2.RELEASE.jar
  • slf4j-api-1.7.5.jar
  • slf4j-log4j12-1.7.5.jar
  • spring-aop-3.2.0.RELEASE.jar
  • spring-beans-3.2.0.RELEASE.jar
  • spring-context-3.2.0.RELEASE.jar
  • spring-core-3.2.0.RELEASE.jar
  • spring-expression-3.2.0.RELEASE.jar
  • spring-jdbc-3.2.0.RELEASE.jar
  • spring-orm-3.2.0.RELEASE.jar
  • spring-test-3.2.0.RELEASE.jar
  • spring-web-3.2.0.RELEASE.jar
  • spring-webmvc-3.2.0.RELEASE.jar

整合Spring与Mybatis

相关的配置文件

log4j.properties

# Rules reminder:
# DEBUG < INFO < WARN < ERROR < FATAL
# Global logging configuration
log4j.rootLogger=debug,stdout
# My logging configuration...
log4j.logger.cn.jbit.mybatisdemo=DEBUG
## Console output...
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%5p %d %C: %m%n
log4j.logger.org.apache.ibatis=DEBUG
## log4j.logger.org.apache.jdbc.SimpleDataSource=DEBUG
log4j.logger.org.apache.ibatis.jdbc.ScriptRunner=DEBUG
## log4j.logger.com.ibatis.sqlmap.engine.impl.SqlMapclientDelegate=DEBUG
log4j.logger.java.sql.Connection=DEBUG
log4j.logger.java.sql.Statement=DEBUG
log4j.logger.java.sql.PreparedStatement=DEBUG

myBatis-config.xml文件

通过package, 可以直接指定package的名字, mybatis会自动扫描你指定包下面的javabean,并且默认设置一个别名,默认的名字为非限定类名来作为它的别名。

<?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>
<!-- 通过别名简化对类的使用 -->
<typeAliases>
<!--         <typeAlias type="cn.itcast.scm.entity.Dept" alias="Dept" />
 -->
 <!-- 
        通过package, 可以直接指定package的名字, mybatis会自动扫描你指定包下面的javabean,
      并且默认设置一个别名,默认的名字为非限定类名来作为它的别名。    
       -->
 <package name="zhongfucheng.entity"/>
 </typeAliases>
<!--     <mappers>
        <mapper resource="cn/itcast/scm/entity/DeptMapper.xml" />
    </mappers>
         -->
</configuration>

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:tx="http://www.springframework.org/schema/tx"
       xmlns:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springframework.org/schema/context"
       xmlns:p="http://www.springframework.org/schema/p"
       xsi:schemaLocation="http://www.springframework.org/schema/beans 
    http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
    http://www.springframework.org/schema/context 
    http://www.springframework.org/schema/context/spring-context-3.2.xsd
    http://www.springframework.org/schema/tx 
    http://www.springframework.org/schema/tx/spring-tx-3.2.xsd
    http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.2.xsd">
    <!-- 配置数据源,记得去掉myBatis-config.xml的数据源相关配置 -->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="com.mysql.jdbc.Driver" />
        <property name="jdbcUrl"
                  value="jdbc:mysql://localhost:3306/scm?useUnicode=true&amp;characterEncoding=UTF-8" />
        <property name="user" value="root" />
        <property name="password" value="root" />
    </bean>
    <!-- 配置session工厂 -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource" />
        <property name="configLocation" value="classpath:myBatis-config.xml" />
        <!--配置扫描式加载SQL映射文件,记得去掉mybatis-config配置-->
    <!--    <property name="mapperLocations" value="classpath:zhongfucheng/dao/*.xml"/>-->
    </bean>
    <!-- 配置事务管理器,管理数据源事务处理 -->
    <bean id="transactionManager"
          class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource" />
    </bean>
    <!-- 配置事务通知 -->
    <tx:advice id="advice" transaction-manager="transactionManager">
        <tx:attributes>
            <!-- 默认只处理运行时异常,可加rollback-for="Exception/Throwable"等处理所有异常或包括错误 -->
            <tx:method name="insert*" propagation="REQUIRED"
                       rollback-for="Exception" />
            <tx:method name="update*" propagation="REQUIRED"
                       rollback-for="Exception" />
            <tx:method name="delete*" propagation="REQUIRED"
                       rollback-for="Exception" />
            <tx:method name="*" propagation="SUPPORTS" />
        </tx:attributes>
    </tx:advice>
    <!-- 配置切面织入的范围,后边要把事务边界定在service层 -->
    <aop:config>
        <aop:advisor advice-ref="advice"
                     pointcut="execution(* cn.itcast.scm.service.impl.*.*(..))" />
    </aop:config>
    <!-- 配置SessionTemplate,已封装了繁琐的数据操作,提交事务都不用做了。 -->
    <bean id="sqlSessionTemplate" class="org.mybatis.spring.SqlSessionTemplate">
        <constructor-arg name="sqlSessionFactory" ref="sqlSessionFactory" />
    </bean>
    <!-- <context:component-scan base-package="*" /> -->
    <!-- 自动扫描组件,要把controller去除,他们是在spring-mvc.xml中配置,如果不去除会影响事务管理。 -->
    <context:component-scan base-package="cn.itcast">
        <context:exclude-filter type="annotation"
                                expression="org.springframework.stereotype.Controller" />
    </context:component-scan>
    <!-- 配置 转换器,对于在basePackage设置的包(包括子包)下的接口类,
    如果接口类的全类名在Mapper.xml文件中和定义过命名空间一致,
     将被转换成spring的BEAN,在调用 
        的地方通过@Autowired方式将可以注入接口实例 -->
<!--
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="sqlSessionFactory" ref="sqlSessionFactory" />
        &lt;!&ndash;这里包名留意要不要改&ndash;&gt;
        <property name="basePackage" value="zhongfucheng.dao" />
    </bean>
-->
</beans>

编写实体及sql映射文件

SQL脚本

drop database if exists mybatis;
create database mybatis CHARACTER SET UTF8;
use mybatis;
create table dept(
    dept_id int primary key auto_increment,
    dept_name varchar(50),
    dept_address varchar(50)
);
insert into dept(dept_name,dept_address) values('研发部一部','广州');
insert into dept(dept_name,dept_address) values('研发部二部','广州');
insert into dept(dept_name,dept_address) values('研发部三部','深圳');
select * from dept;

实体:

package zhongfucheng.entity;
import java.io.Serializable;
public class Dept implements Serializable {
    private Integer deptId;
    private String deptName;
    private String deptAddress;
    public Integer getDeptId() {
        return deptId;
    }
    public void setDeptId(Integer deptId) {
        this.deptId = deptId;
    }
    public String getDeptName() {
        return deptName;
    }
    public void setDeptName(String deptName) {
        this.deptName = deptName;
    }
    public String getDeptAddress() {
        return deptAddress;
    }
    public void setDeptAddress(String deptAddress) {
        this.deptAddress = deptAddress;
    }
    @Override
    public String toString() {
        return "Dept [deptId=" + deptId + ", deptName=" + deptName
                + ", deptAddress=" + deptAddress + "]";
    }
}

映射文件

<?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="zhongfucheng.entity.DeptMapper">
    <resultMap type="Dept" id="deptResultMap">
        <id property="deptId" column="dept_id" />
        <result property="deptName" column="dept_name" />
        <result property="deptAddress" column="dept_address" />
    </resultMap>
    <!-- id和命名空间用来定位SQL语句,parameterType表示参数的类型,resultMap返回类型 -->
    <select id="selectDept" parameterType="Integer" resultMap="deptResultMap">
        <!--参数的写法#{deptID} -->
        select * from dept where dept_id=#{deptID}
    </select>
    <insert id="insertDept" parameterType="Dept">
        insert into dept(dept_name,dept_address) values(#{deptName},#{deptAddress});
    </insert>
</mapper>

mybatis配置文件加载映射文件

<?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>
<!-- 通过别名简化对类的使用 -->
<typeAliases>
<!--         <typeAlias type="cn.itcast.scm.entity.Dept" alias="Dept" />
 -->
 <!-- 
        通过package, 可以直接指定package的名字, mybatis会自动扫描你指定包下面的javabean,
      并且默认设置一个别名,默认的名字为非限定类名来作为它的别名。    
       -->
 <!--这里的包名留意要不要改-->
 <package name="zhongfucheng.entity"/>
 </typeAliases>
    <mappers>
        <mapper resource="zhongfucheng/dao/DeptMapper.xml" />
    </mappers>
</configuration>