搭建maven+spring+mybatis工程

一、maven 命令搭建web项目

可以参考我之前的一篇博文maven快速入门

　1、搭建web工程

mvn archetype:generate -DgroupId=com.yuanmeng.springdemo -DartifactId=spring-mybatis -DarchetypeArtifactId=maven-archetype-webapp -DinteractiveMode=false

　2、pom配置

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">

  <modelVersion>4.0.0</modelVersion>

  <groupId>com.yuanmeng.springdemo</groupId>

  <artifactId>spring-mybatis</artifactId>

  <packaging>war</packaging>

  <version>1.0-SNAPSHOT</version>

  <name>spring Maven Webapp</name>

  <url>http://maven.apache.org</url>

      <properties>

        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>

        <spring.version>4.1.4.RELEASE</spring.version>

        <jackson.version>2.5.0</jackson.version>

    </properties>

  <dependencies>

      <!-- spring -->

        <dependency>

            <groupId>org.springframework</groupId>

            <artifactId>spring-core</artifactId>

            <version>${spring.version}</version>

        </dependency>

        <dependency>

            <groupId>org.springframework</groupId>

            <artifactId>spring-beans</artifactId>

            <version>${spring.version}</version>

        </dependency>

        <dependency>

            <groupId>org.springframework</groupId>

            <artifactId>spring-context</artifactId>

            <version>${spring.version}</version>

        </dependency>

        <dependency>

            <groupId>org.springframework</groupId>

            <artifactId>spring-tx</artifactId>

            <version>${spring.version}</version>

        </dependency>

        <dependency>

            <groupId>org.springframework</groupId>

            <artifactId>spring-web</artifactId>

            <version>${spring.version}</version>

        </dependency>

        <dependency>

            <groupId>org.springframework</groupId>

            <artifactId>spring-webmvc</artifactId>

            <version>${spring.version}</version>

        </dependency>

        <dependency>

            <groupId>org.springframework</groupId>

            <artifactId>spring-jdbc</artifactId>

            <version>${spring.version}</version>

        </dependency>

        <dependency>

            <groupId>org.springframework</groupId>

            <artifactId>spring-test</artifactId>

            <version>${spring.version}</version>

            <scope>test</scope>

        </dependency>

        <!-- mybatis 包 -->

        <dependency>

            <groupId>org.mybatis</groupId>

            <artifactId>mybatis</artifactId>

            <version>3.2.8</version>

        </dependency>

        <!--mybatis spring 插件 -->

        <dependency>

            <groupId>org.mybatis</groupId>

            <artifactId>mybatis-spring</artifactId>

            <version>1.2.2</version>

        </dependency>

        <!-- mysql连接 -->

        <dependency>

            <groupId>mysql</groupId>

            <artifactId>mysql-connector-java</artifactId>

            <version>5.1.34</version>

        </dependency>

        <!-- 数据源 -->

        <dependency>

            <groupId>com.alibaba</groupId>

            <artifactId>druid</artifactId>

            <version>1.0.12</version>

        </dependency>

        <dependency>

            <groupId>org.aspectj</groupId>

            <artifactId>aspectjweaver</artifactId>

            <version>1.8.4</version>

        </dependency>

        <!-- log4j -->

        <dependency>

            <groupId>log4j</groupId>

            <artifactId>log4j</artifactId>

            <version>1.2.17</version>

        </dependency>

        <!-- servlet -->

        <dependency>

            <groupId>javax.servlet</groupId>

            <artifactId>servlet-api</artifactId>

            <version>3.0-alpha-1</version>

        </dependency>

        <dependency>

            <groupId>javax.servlet</groupId>

            <artifactId>jstl</artifactId>

            <version>1.2</version>

        </dependency>

        <!-- json -->

        <dependency>

            <groupId>com.alibaba</groupId>

            <artifactId>fastjson</artifactId>

            <version>1.2.3</version>

        </dependency>

       <dependency>

            <groupId>junit</groupId>

            <artifactId>junit</artifactId>

            <version>4.12</version>

            <scope>test</scope>

    </dependency>

  </dependencies>

  <build>

    <finalName>spring-mybatis</finalName>

  </build>

</project>

　3、切换到工程根目录下，执行 mvn eclipse:eclipse。将maven工程转为eclipse工程，然后在eclipse导入工程

二、创建表

 登录 mysql -uroot -p

 use testdb

 创建表

 create table user_info(

　　id int(16) not null primary key auto_increment,

　　name varchar(32) not null,

　　password varchar(32) not null

);

三、自动生成dao、do、mapper xml配置

可以参考我之前的一篇博文mybatis-generator-core自动生成do、mapping、dao 代码

四、代码结构

dao

public interface UserInfoMapper {

    int deleteByPrimaryKey(Long id);

    int insert(UserInfo record);

    int insertSelective(UserInfo record);

    UserInfo selectByPrimaryKey(Integer id);

    int updateByPrimaryKeySelective(UserInfo record);

    int updateByPrimaryKey(UserInfo record);

}

public class UserInfo {

    private int id;

    private String name;

    private String password;

    public int getId() {

        return id;

    }

    public void setId(int id) {

        this.id = id;

    }

    public String getName() {

        return name;

    }

    public void setName(String name) {

        this.name = name == null ? null : name.trim();

    }

    public String getPassword() {

        return password;

    }

    public void setPassword(String password) {

        this.password = password == null ? null : password.trim();

    }

}

service

public interface UserService {

    UserInfo getUserInfoById(int id);

}

@Service("userService")

public class UserServiceImpl implements UserService {

    @Resource(name="userInfoMapper")

    private UserInfoMapper userInfoMapper;

    @Override

    public UserInfo getUserInfoById(int id) {

        return userInfoMapper.selectByPrimaryKey(id);

    }

}

五、文件配置

userInfoMapper.xml配置

<?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.yuanmeng.springdemo.dao.UserInfoMapper" >

  <resultMap id="BaseResultMap" type="com.yuanmeng.springdemo.model.UserInfo" >

    <id column="id" property="id" jdbcType="INTEGER" />

    <result column="name" property="name" jdbcType="VARCHAR" />

    <result column="password" property="password" jdbcType="VARCHAR" />

  </resultMap>

  <sql id="Base_Column_List" >

    id, name, password

  </sql>

  <select id="selectByPrimaryKey" resultMap="BaseResultMap" parameterType="java.lang.Integer" >

    select

    <include refid="Base_Column_List" />

    from user_info

    where id = #{id,jdbcType=INTEGER}

  </select>

  <delete id="deleteByPrimaryKey" parameterType="java.lang.Integer" >

    delete from user_info

    where id = #{id,jdbcType=INTEGER}

  </delete>

  <insert id="insert" parameterType="com.yuanmeng.springdemo.model.UserInfo" >

    insert into user_info (id, name, password

      )

    values (#{id,jdbcType=INTEGER}, #{name,jdbcType=VARCHAR}, #{password,jdbcType=VARCHAR}

      )

  </insert>

  <insert id="insertSelective" parameterType="com.yuanmeng.springdemo.model.UserInfo" >

    insert into user_info

    <trim prefix="(" suffix=")" suffixOverrides="," >

      <if test="id != null" >

        id,

      </if>

      <if test="name != null" >

        name,

      </if>

      <if test="password != null" >

        password,

      </if>

    </trim>

    <trim prefix="values (" suffix=")" suffixOverrides="," >

      <if test="id != null" >

        #{id,jdbcType=INTEGER},

      </if>

      <if test="name != null" >

        #{name,jdbcType=VARCHAR},

      </if>

      <if test="password != null" >

        #{password,jdbcType=VARCHAR},

      </if>

    </trim>

  </insert>

  <update id="updateByPrimaryKeySelective" parameterType="com.yuanmeng.springdemo.model.UserInfo" >

    update user_info

    <set >

      <if test="name != null" >

        name = #{name,jdbcType=VARCHAR},

      </if>

      <if test="password != null" >

        password = #{password,jdbcType=VARCHAR},

      </if>

    </set>

    where id = #{id,jdbcType=INTEGER}

  </update>

  <update id="updateByPrimaryKey" parameterType="com.yuanmeng.springdemo.model.UserInfo" >

    update user_info

    set name = #{name,jdbcType=VARCHAR},

      password = #{password,jdbcType=VARCHAR}

    where id = #{id,jdbcType=INTEGER}

  </update>

</mapper>

config.properties

validationQuery=SELECT 1

jdbc.url=jdbc:mysql://localhost:3306/testdb?useUnicode=true&characterEncoding=utf-8

jdbc.username=root

jdbc.password=root

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:context="http://www.springframework.org/schema/context"

    xsi:schemaLocation="http://www.springframework.org/schema/beans

            http://www.springframework.org/schema/beans/spring-beans-4.1.xsd

            http://www.springframework.org/schema/context

            http://www.springframework.org/schema/context/spring-context-4.1.xsd">

    <!--引入配置属性文件 -->

    <context:property-placeholder location="classpath:config.properties" />

    <!--自动扫描含有@Service将其注入为bean -->

    <context:component-scan base-package="com.yuanmeng.springdemo.service" />

</beans>

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:tx="http://www.springframework.org/schema/tx"

    xmlns:aop="http://www.springframework.org/schema/aop"

    xsi:schemaLocation="

        http://www.springframework.org/schema/beans

        http://www.springframework.org/schema/beans/spring-beans-4.1.xsd

        http://www.springframework.org/schema/tx

        http://www.springframework.org/schema/tx/spring-tx-4.1.xsd

        http://www.springframework.org/schema/aop

        http://www.springframework.org/schema/aop/spring-aop-4.1.xsd

        ">

    <!-- 配置数据源 使用的是Druid数据源 -->

    <bean name="dataSource" class="com.alibaba.druid.pool.DruidDataSource"

        init-method="init" destroy-method="close">

        <property name="url" value="${jdbc.url}" />

        <property name="username" value="${jdbc.username}" />

        <property name="password" value="${jdbc.password}" />

        <!-- 初始化连接大小 -->

        <property name="initialSize" value="0" />

        <!-- 连接池最大使用连接数量 -->

        <property name="maxActive" value="20" />

        <!-- 连接池最小空闲 -->

        <property name="minIdle" value="0" />

        <!-- 获取连接最大等待时间 -->

        <property name="maxWait" value="60000" />

        <property name="poolPreparedStatements" value="true" />

        <property name="maxPoolPreparedStatementPerConnectionSize"

            value="33" />

        <!-- 用来检测有效sql -->

        <property name="validationQuery" value="${validationQuery}" />

        <property name="testOnBorrow" value="false" />

        <property name="testOnReturn" value="false" />

        <property name="testWhileIdle" value="true" />

        <!-- 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒 -->

        <property name="timeBetweenEvictionRunsMillis" value="60000" />

        <!-- 配置一个连接在池中最小生存的时间，单位是毫秒 -->

        <property name="minEvictableIdleTimeMillis" value="25200000" />

        <!-- 打开removeAbandoned功能 -->

        <property name="removeAbandoned" value="true" />

        <!-- 1800秒，也就是30分钟 -->

        <property name="removeAbandonedTimeout" value="1800" />

        <!-- 关闭abanded连接时输出错误日志 -->

        <property name="logAbandoned" value="true" />

        <!-- 监控数据库 -->

        <property name="filters" value="mergeStat" />

    </bean>

    <!-- myBatis文件 -->

    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">

        <property name="dataSource" ref="dataSource" />

        <!-- 自动扫描entity目录, 省掉Configuration.xml里的手工配置 -->

        <property name="mapperLocations" value="classpath:com/yuanmeng/springdemo/mapping/*.xml" />

    </bean>

    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">

        <property name="basePackage" value="com.yuanmeng.springdemo.dao" />

        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" />

    </bean>

    <!-- 配置druid监控spring jdbc -->

    <bean id="druid-stat-interceptor" class="com.alibaba.druid.support.spring.stat.DruidStatInterceptor">

    </bean>

    <bean id="druid-stat-pointcut" class="org.springframework.aop.support.JdkRegexpMethodPointcut" scope="prototype">

        <property name="patterns">

            <list>

                <value>com.yuanmeng.springdemo.service.*</value>

            </list>

        </property>

    </bean>

    <aop:config>

        <aop:advisor advice-ref="druid-stat-interceptor" pointcut-ref="druid-stat-pointcut" />

    </aop:config>

</beans>

六、test

方法一 : 使用Spring提供的Junit测试框架进行单元测试

@RunWith(SpringJUnit4ClassRunner.class)

@ContextConfiguration(locations = { "classpath:spring.xml",    "classpath:spring-mybatis.xml" })

public class TestUserService {

    private static final Logger LOGGER = Logger.getLogger(TestUserService.class);

    @Resource(name="userService")

    private UserService userService;

    @Test

    public void testGetUserInfoById() {

        UserInfo userInfo = userService.getUserInfoById(1);

        LOGGER.info(JSON.toJSON(userInfo));

    }

}

方法二 : 使用Junit测试框架进行单元测试

public class TestUserService2 {

    private static final Logger LOGGER = Logger.getLogger(TestUserService2.class);

    private UserService userService;

    @Before

    public void init() {

        @SuppressWarnings("resource")

        ApplicationContext ac = new ClassPathXmlApplicationContext(new String[]{"spring.xml","spring-mybatis.xml"});

        userService = (UserService) ac.getBean("userService");

    }

    @Test

    public void testGetUserInfoById() {

        UserInfo userInfo = userService.getUserInfoById(1);

        LOGGER.info(JSON.toJSON(userInfo));

    }

}

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