ssm

第一章 搭建SSM开发环境

1.1 导入Jar包

（1）、mybatis的jar包

  • asm-4.2.jar
  • cglib-3.1.jar
  • commons-logging-1.2.jar
  • log4j-1.2.17.jar
  • log4j-api-2.2.jar
  • log4j-core-2.2.jar
  • mybatis-3.3.0.jar
  • slf4j-api-1.7.12.jar
  • slf4j-log4j12-1.7.12.jar

（2）、ehcache的Jar包

  • ehcache-core-2.6.8.jar
  • mybatis-ehcache-1.0.3.jar

（3）、Spring的Jar包

  • com.springsource.org.aopalliance-1.0.0.jar
  • com.springsource.org.aspectj.weaver-1.6.8.RELEASE.jar
  • spring-aop-4.2.1.RELEASE.jar
  • spring-aspects-4.2.1.RELEASE.jar
  • spring-beans-4.2.1.RELEASE.jar
  • spring-context-4.2.1.RELEASE.jar
  • spring-context-support-4.2.1.RELEASE.jar
  • spring-core-4.2.1.RELEASE.jar
  • spring-expression-4.2.1.RELEASE.jar
  • spring-jdbc-4.2.1.RELEASE.jar
  • spring-orm-4.2.1.RELEASE.jar
  • spring-tx-4.2.1.RELEASE.jar
  • spring-web-4.2.1.RELEASE.jar
  • spring-webmvc-4.2.1.RELEASE.jar

（4）、mybatis与spring整合的Jar包

  • mybatis-spring-1.2.3.jar

（5）、JSON的Jar包

  • commons-beanutils-1.8.0.jar

  • commons-collections-3.2.1.jar

  • commons-lang-2.5.jar

  • commons-logging-1.1.1.jar

  • ezmorph-1.0.6.jar

  • json-lib-2.4-jdk15.jar

（6）、Jackson的Jar包

  • jackson-annotations-2.6.0-xh.jar

  • jackson-core-2.6.0-xh.jar

  • jackson-databind-2.6.0-xh.jar

  • jackson-jr-all-2.4.3-xh.jar

（7）、Hebernate验证器Jar包

  • hibernate-validator-5.1.0.Final.jar

  • jboss-logging-3.1.3.GA.jar

  • validation-api-1.1.0.Final.jar

（8）、其它Jar包

  • mysql-connector-java-5.1.44-bin.jar

  • c3p0-0.9.2.1

  • c3p0-oracle-thin-extras-0.9.2.1

  • mchange-commons-java-0.2.3.4

1.2 配置式开发

1.2.1 定义实体类及DB表

package com.bjpowernode.beans;

public class Student {
private Integer id;
private String name;
private int age;

public Student() {
    super();
    // TODO Auto-generated constructor stub
}

public Student(String name, int age) {
    super();
    this.name = name;
    this.age = age;
}
...
getter and setter
...

}

1.2.2 定义表单页及处理器

index.jsp

<form action="${pageContext.request.contextPath }/test/register.do" method="POST">
    姓名：<input type="text" name="name" /><br />
    年龄：<input type="text" name="age" /><br />
    <input type="submit" value="注册" />
</form>

StudentController

package com.bjpowernode.handlers;

public class StudentController implements Controller {

    private IStudentService service;

    public void setService(IStudentService service) {
        this.service = service;
    }

    @Override
    public ModelAndView handleRequest(HttpServletRequest request, HttpServletResponse response) throws Exception {

        String name = request.getParameter("name");
        String ageStr = request.getParameter("age");
        Integer age = Integer.valueOf(ageStr);
        Student student = new Student(name,age);

        service.addStudent(student);

        return new ModelAndView("/welcome.jsp");
    }

}
1.2.3 定义service

service interface

package com.bjpowernode.service;
public interface IStudentService {    
    void addStudent(Student student);
}

service implements

package com.bjpowernode.service;
public class StudentServiceImpl implements IStudentService {

    private IStudentDao dao;

    public void setDao(IStudentDao dao) {
        this.dao = dao;
    }

    @Override
    public void addStudent(Student student) {
        dao.insertStudent(student);
    }

}
1.2.4 定义dao

dao interface

package com.bjpowernode.dao;
public interface IStudentDao {    
    void insertStudent(Student student);
}
1.2.5 定义mybatis两个配置文件

mybatis主配置文件：mybatis.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>
    <!-- 为实体类指定别名，简单类名 -->
    <typeAliases>
        <package name="com.bjpowernode.beans"/>
    </typeAliases>
    <!-- 注册映射文件 -->
    <mappers>
        <package name="com.bjpowernode.dao"/>
    </mappers>
</configuration>

IStudentDao.xml

<?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="com.bjpowernode.dao.IStudentDao">
    <insert id="insertStudent">
        insert into student(name,age) values(#{name},#{age})
    </insert>
</mapper>
1.2.6 注册数据源

jdbc.properties

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql:///mydatabase
jdbc.user=root
jdbc.password=haojie_123456

spring-db.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:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
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
    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
    http://www.springframework.org/schema/mvc
    http://www.springframework.org/schema/mvc/spring-mvc.xsd">

    <!-- 注册c3p0数据源 -->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="${jdbc.driver}"></property>
        <property name="jdbcUrl" value="${jdbc.url}"></property>
        <property name="user" value="${jdbc.user}"></property>
        <property name="password" value="${jdbc.password}"></property>
    </bean>

    <!-- 注册属性文件 -->
    <context:property-placeholder location="classpath:resources/jdbc.properties" />

</beans>
1.2.7 生成Dao的代理对象

spring-mybatis.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:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
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
    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
    http://www.springframework.org/schema/mvc
    http://www.springframework.org/schema/mvc/spring-mvc.xsd">

    <!-- 注册sqlSessionFactory -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="configLocation" value="classpath:resources/mybatis.xml"></property>        
        <property name="dataSource" ref="dataSource"></property>
    </bean>

    <!-- 生成Dao的代理对象 -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>
        <property name="basePackage" value="com.bjpowernode.dao"></property>
    </bean>

</beans>
1.2.8 注册service

spring-service.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:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
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
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
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd">

    <bean id="studentService" class="com.bjpowernode.service.StudentServiceImpl">
        <property name="dao" ref="IStudentDao"></property>
    </bean>

</beans>
1.2.9 注册springmvc处理器

spring-mvc.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:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
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
    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
    http://www.springframework.org/schema/mvc
    http://www.springframework.org/schema/mvc/spring-mvc.xsd">

    <!-- 注册处理器 -->
    <bean id="/test/register.do" class="com.bjpowernode.handlers.StudentController">
        <property name="service" ref="studentService"></property>
    </bean>

</beans>
1.2.10 配置spring事务

spring-tx.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:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
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
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
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd">

    <!-- 注册事务管理器 -->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"></property>
    </bean>

    <!-- 注册事务通知 -->
    <tx:advice id="txAdvice">
        <tx:attributes>
            <tx:method name="add*" isolation="DEFAULT" propagation="REQUIRED"/>
        </tx:attributes>
    </tx:advice>

    <!-- AOP配置 -->
    <aop:config>
        <aop:pointcut expression="execution(* *..service.*.*(..))" id="studentPointcut"/>
        <aop:advisor advice-ref="txAdvice" pointcut-ref="studentPointcut"/>
    </aop:config>

</beans>

1.3 注解式开发

1.3.1 将springmvc改为注解

springmvc.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:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
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
    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
    http://www.springframework.org/schema/mvc
    http://www.springframework.org/schema/mvc/spring-mvc.xsd">

    <!-- 注册处理器 -->
    <!-- 
    <bean id="/test/register.do" class="com.bjpowernode.handlers.StudentController">
        <property name="service" ref="studentService"></property>
    </bean>
     -->

     <!-- 注册组件扫描器 -->
     <context:component-scan base-package="com.bjpowernode.handlers"></context:component-scan>

</beans>

StudentController

  • 请求路径

  • 处理器

  • 依赖注入

============

package com.bjpowernode.handlers;

@Controller
@RequestMapping("/test")
public class StudentController {

    @Autowired
    @Qualifier("studentService")
    //@Resource(name="studentService")
    private IStudentService service;

    public void setService(IStudentService service) {
        this.service = service;
    }

    @RequestMapping("/register.do")
    public ModelAndView doRegister(String name, int age) {

        Student student = new Student(name,age);

        service.addStudent(student);

        return new ModelAndView("/welcome.jsp");
    }
}

1.3.2 将spring改为注解

spring-service.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:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
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
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
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd">
    <!-- 
    <bean id="studentService" class="com.bjpowernode.service.StudentServiceImpl">
        <property name="dao" ref="IStudentDao"></property>
    </bean>
    -->

    <!-- 注册组件扫描器 -->
    <context:component-scan base-package="com.bjpowernode.service"></context:component-scan> 

</beans>

student service implements

package com.bjpowernode.service;

@Service("studentService")
public class StudentServiceImpl implements IStudentService {

    @Resource(name="IStudentDao")
    private IStudentDao dao;

    public void setDao(IStudentDao dao) {
        this.dao = dao;
    }

    @Override
    @Transactional
    public void addStudent(Student student) {
        dao.insertStudent(student);
    }

}

spring-tx.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:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
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
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
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd">

    <!-- 注册事务管理器 -->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"></property>
    </bean>

    <!--  
    注册事务通知
    <tx:advice id="txAdvice">
        <tx:attributes>
            <tx:method name="add*" isolation="DEFAULT" propagation="REQUIRED"/>
        </tx:attributes>
    </tx:advice>

    AOP配置
    <aop:config>
        <aop:pointcut expression="execution(* *..service.*.*(..))" id="studentPointcut"/>
        <aop:advisor advice-ref="txAdvice" pointcut-ref="studentPointcut"/>
    </aop:config>
    -->

    <!-- 注册事务驱动 -->
    <tx:annotation-driven transaction-manager="transactionManager" />

</beans>