ssm从零搭建个人博客（一）

我是跟着http://blog.csdn.net/xp541130126/article/details/70163081这位同学的博客来搭的，谢谢他对知识的分享，他讲的已经很好了，但是我在搭建的过程中发现他遗漏了点小细节。
1.1 首先创建maven项目，添加maven依赖，我用的aliyun的镜像能保证所有的jar包能下下来：

 <dependencies>    <!-- 添加sevlet支持 -->    <dependency>        <groupId>javax.servlet</groupId>        <artifactId>javax.servlet-api</artifactId>        <version>3.1.0</version>    </dependency>    <!-- 添加jsp支持 -->    <dependency>        <groupId>javax.servlet.jsp</groupId>        <artifactId>javax.servlet.jsp-api</artifactId>        <version>2.3.1</version>    </dependency>    <!-- 添加jstl支持 -->    <dependency>        <groupId>javax.servlet</groupId>        <artifactId>jstl</artifactId>        <version>1.1.2</version>    </dependency>    <dependency>        <groupId>taglibs</groupId>        <artifactId>standard</artifactId>        <version>1.1.2</version>    </dependency>    <!-- 添加spring支持 -->    <dependency>        <groupId>org.springframework</groupId>        <artifactId>spring-core</artifactId>        <version>4.3.0.RELEASE</version>    </dependency>    <dependency>        <groupId>org.springframework</groupId>        <artifactId>spring-beans</artifactId>        <version>4.3.0.RELEASE</version>    </dependency>    <dependency>        <groupId>org.springframework</groupId>        <artifactId>spring-context</artifactId>        <version>4.3.0.RELEASE</version>    </dependency>    <dependency>        <groupId>org.springframework</groupId>        <artifactId>spring-context-support</artifactId>        <version>4.3.0.RELEASE</version>    </dependency>    <dependency>        <groupId>org.springframework</groupId>        <artifactId>spring-web</artifactId>        <version>4.3.0.RELEASE</version>    </dependency>    <!--spring test支持-->    <dependency>        <groupId>org.springframework</groupId>        <artifactId>spring-test</artifactId>        <version>4.3.0.RELEASE</version>    </dependency>    <!--spring mvc支持-->    <dependency>        <groupId>org.springframework</groupId>        <artifactId>spring-webmvc</artifactId>        <version>4.3.0.RELEASE</version>    </dependency>    <!--spring 事务管理支持-->    <dependency>        <groupId>org.springframework</groupId>        <artifactId>spring-tx</artifactId>        <version>4.3.0.RELEASE</version>    </dependency>    <!--spring jdbc操作支持-->    <dependency>        <groupId>org.springframework</groupId>        <artifactId>spring-jdbc</artifactId>        <version>4.3.0.RELEASE</version>    </dependency>    <!--spring aop编程支持-->    <dependency>        <groupId>org.springframework</groupId>        <artifactId>spring-aop</artifactId>        <version>4.3.0.RELEASE</version>    </dependency>    <dependency>        <groupId>org.springframework</groupId>        <artifactId>spring-aspects</artifactId>        <version>4.3.0.RELEASE</version>    </dependency>    <!-- 添加mybatis支持 -->    <dependency>        <groupId>org.mybatis</groupId>        <artifactId>mybatis</artifactId>        <version>3.4.0</version>    </dependency>    <dependency>        <groupId>org.mybatis</groupId>        <artifactId>mybatis-spring</artifactId>        <version>1.3.0</version>    </dependency>    <!--  jdbc驱动包 -->    <dependency>        <groupId>mysql</groupId>        <artifactId>mysql-connector-java</artifactId>        <version>5.1.30</version>    </dependency>    <!-- 添加阿里巴巴连接池Druid支持 -->    <dependency>        <groupId>com.alibaba</groupId>        <artifactId>druid</artifactId>        <version>1.0.16</version>    </dependency>    <!-- 添加log4j日志 -->    <dependency>        <groupId>log4j</groupId>        <artifactId>log4j</artifactId>        <version>1.2.17</version>    </dependency>    <dependency>        <groupId>org.slf4j</groupId>        <artifactId>slf4j-api</artifactId>        <version>1.7.21</version>    </dependency>    <!-- apache共公包 -->    <dependency>        <groupId>commons-logging</groupId>        <artifactId>commons-logging</artifactId>        <version>1.2</version>    </dependency>    <!-- 添加junit支持 -->    <dependency>        <groupId>junit</groupId>        <artifactId>junit</artifactId>        <version>4.12</version>        <scope>test</scope>    </dependency>    </dependencies>

创建新项目后，如果发现jar包缺失，肯定是maven需要重新再配置一下，依赖后右键项目maven–reimport重新导入一下保证项目的依赖。
1.2在resource下新建mybatis-conf.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>    <!-- 别名 -->    <typeAliases>        <package name="ssm.blog.entity"/>    </typeAliases></configuration>

1.3在resource下新建spring-beans.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.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">    <!-- 开启包扫描-->    <context:component-scan base-package="cn.com.blog"/>    <!-- 配置druid数据源 -->    <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">        <property name="username" value="root"/>        <property name="password" value="5201314"/>        <property name="driverClassName" value="com.mysql.jdbc.Driver"/>        <property name="url" value="jdbc:mysql://localhost:3306/db_blog"/>    </bean>    <!-- 配置mybatis的sqlSessionFactory -->    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">        <property name="dataSource" ref="dataSource"/>        <!-- 自动扫描mapper.xml文件-->        <property name="mapperLocations" value="classpath:mapper/*.xml"/>        <!-- 载入mybatis全局配置文件-->        <property name="configLocation" value="classpath:mybatis-conf.xml"/>    </bean>    <!-- 配置mybatis dao接口扫描-->    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">        <property name="basePackage" value="cn.com.blog.dao"/>        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>    </bean>    <!-- 配置spring的声明式事务，名字为默认值 -->    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">        <property name="dataSource" ref="dataSource" />    </bean></beans>

2.1在mysql数据库建表：

DROP DATABASE IF EXISTS db_blog;/*创建数据库，并设置编码*/CREATE DATABASE db_blog DEFAULT CHARACTER SET utf8;USE db_blog;CREATE TABLE `t_blogger` (  `id` INT(11) NOT NULL AUTO_INCREMENT COMMENT '博主id',  `username` VARCHAR(50) NOT NULL COMMENT '博主姓名',  `password` VARCHAR(100) NOT NULL COMMENT '博主密码',  `profile` TEXT COMMENT '博主信息',  `nickname` VARCHAR(50) DEFAULT NULL COMMENT '博主昵称',  `sign` VARCHAR(100) DEFAULT NULL COMMENT '博主签名',  `imagename` VARCHAR(100) DEFAULT NULL COMMENT '博主头像路径',  PRIMARY KEY (`id`)) ENGINE=INNODB AUTO_INCREMENT=2 DEFAULT CHARSET=utf8;

2.2 创建博主信息实体类，alt+enter快捷键导jar包

package cn.com.blog.entity;/** * ${DESCRIPTION} * * @author lightTrace * @create 2017-10-24 22:24 **/import org.springframework.stereotype.Component;import java.io.Serializable;@Component  //注册bean 为spring容器管理public class Blogger implements Serializable {    private Integer id;    private String userName;    //用户名    private String password;    //密码    private String profile;     //博主信息    private String nickName;    //昵称    private String sign;        //博主签名    private String imageName;   //图片路径    public Blogger(String userName, String password, String profile, String nickName, String sign, String imageName) {        this.userName = userName;        this.password = password;        this.profile = profile;        this.nickName = nickName;        this.sign = sign;        this.imageName = imageName;    }    public Blogger() {    }    public Integer getId() {        return id;    }    public void setId(Integer id) {        this.id = id;    }    public String getUserName() {        return userName;    }    public void setUserName(String userName) {        this.userName = userName;    }    public String getPassword() {        return password;    }    public void setPassword(String password) {        this.password = password;    }    public String getProfile() {        return profile;    }    public void setProfile(String profile) {        this.profile = profile;    }    public String getNickName() {        return nickName;    }    public void setNickName(String nickName) {        this.nickName = nickName;    }    public String getSign() {        return sign;    }    public void setSign(String sign) {        this.sign = sign;    }    public String getImageName() {        return imageName;    }    public void setImageName(String imageName) {        this.imageName = imageName;    }    @Override    public String toString() {        return "Blogger{" +                "id=" + id +                ", userName='" + userName + '\'' +                ", password='" + password + '\'' +                ", profile='" + profile + '\'' +                ", nickName='" + nickName + '\'' +                ", sign='" + sign + '\'' +                ", imageName='" + imageName + '\'' +                '}';    }}

2.3创建dao接口及mapper.xml

package cn.com.blog.dao;import org.springframework.stereotype.Repository;import cn.com.blog.entity.Blogger;/** * ${DESCRIPTION} * * @author lightTrace * @create 2017-10-24 22:28 **/@Repository //注册为持久层的beanpublic interface BloggerDao {    /**     * 查询博主信息     * @return     */    Blogger getBloggerData();}

BlogerMapper.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="ssm.blog.dao.BloggerDao">    <!--        返回结果映射        如果开启驼峰命名转换且命名规范该段代码可以不写        因为配置别名 所以type属性使用的是mybatis-conf中的别名        -->    <resultMap type="Blogger" id="BloggerResult">        <id property="id" column="id"/>        <result property="userName" column="username"/>        <result property="password" column="password"/>        <result property="profile" column="profile"/>        <result property="nickName" column="nickname"/>        <result property="sign" column="sign"/>        <result property="imageName" column="imagename"/>    </resultMap>    <!--  定义字段集合 -->    <sql id="BloggerColumns">        id,username,password,profile,nickname,sign,imagename    </sql>    <!-- 接口中getBloggerData 具体实现-->    <select id="getBloggerData" resultMap="BloggerResult">            select <include refid="BloggerColumns"/>    from t_blogger where id = 1    </select></mapper>

2.4 log4j.properties

log4j.rootLogger=DEBUG, Console  #Console  log4j.appender.Console=org.apache.log4j.ConsoleAppender  log4j.appender.Console.layout=org.apache.log4j.PatternLayout  log4j.appender.Console.layout.ConversionPattern=%d [%t] %-5p [%c] - %m%n  log4j.logger.java.sql.ResultSet=INFO  log4j.logger.org.apache=INFO  log4j.logger.java.sql.Connection=DEBUG  log4j.logger.java.sql.Statement=DEBUG  log4j.logger.java.sql.PreparedStatement=DEBUG

测试类：

package cn.com.blog.test;import cn.com.blog.dao.BloggerDao;import org.junit.Test;import org.junit.runner.RunWith;import org.springframework.test.context.ContextConfiguration;import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;import cn.com.blog.entity.Blogger;import javax.annotation.Resource;import static org.junit.Assert.*;/** * ${DESCRIPTION} * * @author lightTrace * @create 2017-10-24 22:34 **/@RunWith(SpringJUnit4ClassRunner.class) //使用spring测试@ContextConfiguration(locations = "classpath:spring-beans.xml") //设置spring配置文件路径public class BloggerDaoTest {    @Resource   //注入BloggerDao对象    private BloggerDao bloggerDao;    @Test    public void getBloggerData() throws Exception {        Blogger blogger = bloggerDao.getBloggerData();        System.out.println(blogger);    }}右键方法名BloggerDaoTest，控制台输出null就代表环境搭建成功：![这里写图片描述](http://img.blog.csdn.net/20171024223719599?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvc3VyZVNhbmQ=/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/SouthEast)