SSM整合开发流程

我的spring是3.2，mybatis是3.4

1 引入user libarary，我的jar文件如下

//spring mvc core
springMVC\spring-web-3.2.9.RELEASE.jar
springMVC\spring-webmvc-3.2.9.RELEASE.jar

//spring core
spring3.2core\commons-logging-1.2.jar
spring3.2core\spring-beans-3.2.9.RELEASE.jar
spring3.2core\spring-context-3.2.9.RELEASE.jar
spring3.2core\spring-core-3.2.9.RELEASE.jar
spring3.2core\spring-expression-3.2.9.RELEASE.jar

//mybatis core
mybatis3.4core\asm-5.2.jar
mybatis3.4core\cglib-3.2.5.jar
mybatis3.4core\commons-logging-1.2.jar
mybatis3.4core\log4j-1.2.17.jar
mybatis3.4core\mybatis-3.4.4.jar

//DBconnector
MySQLConnector\c3p0-0.9.1.2.jar
MySQLConnector\mysql-connector-java-5.1.40-bin.jar

//translation
springTx\spring-jdbc-3.2.9.RELEASE.jar
springTx\spring-tx-3.2.9.RELEASE.jar

//AOP
springAOP\aopalliance.jar
springAOP\aspectjrt.jar
springAOP\aspectjweaver.jar
springAOP\spring-aop-3.2.9.RELEASE.jar

//mybatis spring
mybatisSpring\mybatis-spring-1.3.1.jar

//json
json\jackson-core-asl-1.9.2.jar
json\jackson-mapper-asl-1.9.2.jar

2 创建表文件t_student

CREATE TABLE t_student(
id INT PRIMARY KEY AUTO_INCREMENT,
NAME VARCHAR(20) NOT NULL,
age INT(3));

3 创建实体类Student

package com.huitong.entity;

public class Student {

    private Integer sid;
    private String sname;
    private Integer sage;

    public Integer getSid() {
        return sid;
    }
    public void setSid(Integer sid) {
        this.sid = sid;
    }
    public String getSname() {
        return sname;
    }
    public void setSname(String sname) {
        this.sname = sname;
    }
    public Integer getSage() {
        return sage;
    }
    public void setSage(Integer sage) {
        this.sage = sage;
    }

}

4配置实体类的映射文件StudentMapper.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.huitong.entity.Student">
    <resultMap type="com.huitong.entity.Student" id="studentMap">
        <id column="id" property="sid"/>
        <result column="name" property="sname"/>
        <result column="age" property="sage"/>

    </resultMap>

    <insert id="add" parameterType="com.huitong.entity.Student">
        INSERT INTO t_student(NAME, age) VALUES(#{sname},#{sage})
    </insert>

</mapper>

5 Student的 dao/service/action

//StudentDao
package com.huitong.dao;

import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;

import com.huitong.entity.Student;

public class StudentDao {

    private SqlSessionFactory sqlSessionFactory;
    public void setSqlSessionFactory(SqlSessionFactory sqlSessionFactory) {
        this.sqlSessionFactory = sqlSessionFactory;
    }

    public void add(Student stu) throws Exception{
        SqlSession sqlSession = sqlSessionFactory.openSession();
        sqlSession.insert(Student.class.getName() + ".add", stu);
        sqlSession.close();
    }

}

//StudentService
package com.huitong.service;

import com.huitong.dao.StudentDao;
import com.huitong.entity.Student;

public class StudentService {

    private StudentDao studentDao;
    public void setStudentDao(StudentDao studentDao) {
        this.studentDao = studentDao;
    }

    public void add(Student stu) throws Exception{
        studentDao.add(stu);
    }

}

//StudentAction
package com.huitong.action;

import javax.annotation.Resource;

import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;

import com.huitong.entity.Student;
import com.huitong.service.StudentService;

@Controller
@RequestMapping(value="/student")
public class StudentAction {

    private StudentService StudentService;
    @Resource(name="studentService")
    public void setStudentService(StudentService studentService) {
        StudentService = studentService;
    }

    @RequestMapping(value="/register")
    public String register(Student stu, Model model) throws Exception{
        StudentService.add(stu);
        model.addAttribute("student", stu);

        return "success";
    }
}

6 mybatis的配置文件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>
    <mappers>
        <mapper resource="com/huitong/entity/StudentMapper.xml"/>
    </mappers>

</configuration>

7 spring/spring mvc配置到一个文件中spring.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:p="http://www.springframework.org/schema/p"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:aop="http://www.springframework.org/schema/aop"
    xmlns:tx="http://www.springframework.org/schema/tx"
    xmlns:mvc="http://www.springframework.org/schema/mvc"
    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
        http://www.springframework.org/schema/mvc
        http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd">

        <!-- 1 dataSource -->
        <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
            <property name="driverClass" value="com.mysql.jdbc.Driver"></property>
            <property name="jdbcUrl" value="jdbc:mysql:///day17?useSSL=true"></property>
            <property name="user" value="root"></property>
            <property name="password" value="123456"></property>
            <property name="initialPoolSize" value="3"></property>
            <property name="maxPoolSize" value="10"></property>
            <property name="maxStatements" value="20"></property>
            <property name="acquireIncrement" value="2"></property>

        </bean>

        <!-- 2 sessionFactory:datasource/xml配置文件 -->
        <bean id="sessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
            <property name="dataSource" ref="dataSource"></property>
            <property name="configLocation" value="classpath:mybatis.xml"></property>
        </bean>

        <!-- 3 dao/service/action -->
        <bean id="studentDao" class="com.huitong.dao.StudentDao">
            <property name="sqlSessionFactory" ref="sessionFactory"></property>
        </bean>

        <bean id="studentService" class="com.huitong.service.StudentService">
            <property name="studentDao" ref="studentDao"></property>
        </bean>

        <!-- <bean id="studentAction" class="com.huitong.action.StudentAction">
            <property name="studentService" ref="studentService"></property>
        </bean> -->
        <!-- 使用扫描方式 -->
        <context:component-scan base-package="com.huitong.action"></context:component-scan>

        <!-- 4 transaction -->
        <!-- 4.1 txManager -->
        <bean id="txManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
            <property name="dataSource" ref="dataSource"></property>
        </bean>

        <!-- 4.2 txAdvice -->
        <tx:advice id="txAdvice" transaction-manager="txManager">
            <tx:attributes>
                <tx:method name="get*" read-only="true"/>
                <tx:method name="query*" read-only="true"/>
                <tx:method name="*"/>
            </tx:attributes>
        </tx:advice>

        <!-- 4.3 AOP -->
        <aop:config>
            <aop:pointcut expression="execution(* com.huitong.service.*.*(..))" id="pt"/>
            <aop:advisor advice-ref="txAdvice" pointcut-ref="pt"/>
        </aop:config>

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

</beans>

说明：在spring.xml文件中，SqlSessionFactory说明了mybatis的配置文件位置。也对spring mvc进行了配置，指示了扫描哪些文件，视图处理器。其他的就是spring常规配置了。

对mapping映射器进行扫描方式。

如果项目比较大也可以将配置文件进行拆分。

8 web.xml中配置springmvc核心servlet：dispatcherservlet。字符编码过滤器:CharacterEncodingFilter

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">

    <servlet>
        <servlet-name>DispatcherServlet</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:spring.xml</param-value>
        </init-param>
    </servlet>

    <servlet-mapping>
        <servlet-name>DispatcherServlet</servlet-name>
        <url-pattern>*.action</url-pattern>
    </servlet-mapping>

    <filter>
        <filter-name>CharacterEncodingFilter</filter-name>
        <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
        <init-param>
            <param-name>encoding</param-name>
            <param-value>utf-8</param-value>
        </init-param>
    </filter>

    <filter-mapping>
        <filter-name>CharacterEncodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

</web-app>