【ssm个人博客项目实战01】SSM环境搭建1、ssm系统架构2、项目整合

yukong

发布于 2018-08-21 10:19:04

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发布于 2018-08-21 10:19:04

文章被收录于专栏：yukong的小专栏 yukong的小专栏yukong的小专栏

前言

今天开始就做一个个人博客实战项目了,首先就项目环境的搭建，万丈高楼平地起。这篇 博客主要讲解基于maven的ssm项目整合。

1、ssm系统架构

这里写图片描述

整合步骤

第一步:

MyBatis和Spring整合，通过Spring管理mapper接口。

使用mapper的扫描器自动扫描mapper接口在Spring中进行注册。

第二步：

通过Spring管理Service接口。

使用配置方式将Service接口配置在Spring配置文件中。

实现事务控制。

第三步：

由于SpringMVC是Spring的模块，无需整合这两个。

项目架构:

这里写图片描述

下面讲解部分包/文件作用

mapper:存放mybatis的mapper文件夹 log4j.properties:log4j日志属性文件 mybatis-conf.xml:mybatis全局配置文件 spring-bean.xml:spring与mybatis整合配置文件 spring-mvc.xml:spring mvc配置文件

下面就开始我们的项目整合吧

2、项目整合

2.1、新建maven项目添加依赖

maven是一个优秀的项目对象管理器工具我可以通过在pom.xml中添加需要的jar包的依赖就可以导入对应的jar包了，非常的方便。下面就列出整合ssm所对应的依赖

<!-- 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>

2.2spring与mybatis整合

2.2.1 新建mybatis-conf.xml文件

这个文件主要配置mybatis全局配置文件例如别名驼峰命名自动转换等在这里我暂时只配置别名

<?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>
    <!-- 别名 -->
    <typeAliases>
        <package name="ssm.blog.entity"/>
    </typeAliases>
</configuration>

2.2.2新建spring-beans.xml文件

整合主要步骤

开启包扫描
配置druid数据源
列表内容
配置sqlSessionFactory
开启mybatis dao接口扫描

具体配置注解讲的很清楚

<?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="ssm.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="root"/>
        <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="ssm.blog.dao"/>
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
    </bean>
</beans>
<!-- 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>  
      
    <!-- 开启事务控制的注解支持 -->  
    <tx:annotation-driven transaction-manager="transactionManager"/>、、

现在mybatis与spring整合已经算完成了接下来我们测试一下

2.2.3测试spring与mybatis整合

1、表结构

这里写图片描述

sql 文件

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、实体类

package ssm.blog.entity;

import org.springframework.stereotype.Component;

import java.io.Serializable;

/**
 * Created by xp on 2017/4/13.
 * @author xp
 * @Description 博主信息实体类
 */
@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 + '\'' +
                '}';
    }
}

3、dao接口以及mapper文件 dao接口

package ssm.blog.dao;

import org.springframework.stereotype.Repository;
import ssm.blog.entity.Blogger;

/**
 * Created by xp on 2017/4/13.
 * 博主dao接口
 */
@Repository //注册为持久层的bean
public interface BloggerDao {
    /**
     * 查询博主信息
     * @return
     */
    Blogger getBloggerData();
}

mapper

<?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>

4、log4j.properties 文件创建log4j.properties 打印日志查看执行sql语句

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

5、创建测试类并测试 BloggerDaoTest

package ssm.blog.dao;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import ssm.blog.entity.Blogger;

import javax.annotation.Resource;

import static org.junit.Assert.*;

/**
 * Created by xp on 2017/4/13.
 */
@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);
    }

}

打印结果

这里写图片描述

成功打印结果说明spring与mybatis整合成功。

2.3spring与springmvc整合

2.3.1创建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"
       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/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd">

    <!-- 扫描所有ssm.blog.controller包下面的所有controller -->
    <context:component-scan base-package="ssm.blog.controller"/>
    <!-- 开启注解配置-->
    <mvc:annotation-driven/>
    <!-- 静态资源解析，包括js,css,img... -->
    <mvc:resources location="/static/" mapping="/static/**"/>
    <!-- 配置视图解析器-->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <!--视图前缀-->
        <property name="prefix" value="/"/>
        <!--视图后缀-->
        <property name="suffix" value=".jsp"/>
    </bean>
</beans>

2.3.2 配置web.xml文件

注释讲的很清楚我就不再讲了

<?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_3_0.xsd"
         id="WebApp_ID" version="3.0">

    <!--spring配置文件路径-->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:spring-beans.xml</param-value>
    </context-param>
    <!-- 配置spring监听器-->
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
    <!--spring mvc核心servlet-->
    <servlet>
        <servlet-name>dispatcherServlet</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <!-- 初始化参数配置 springnvc配置文件路径-->
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:spring-mvc.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
        <async-supported>true</async-supported>
    </servlet>
    <servlet-mapping>
        <servlet-name>dispatcherServlet</servlet-name>
        <url-pattern>*.do</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
        <servlet-name>dispatcherServlet</servlet-name>
        <url-pattern>*.html</url-pattern>
    </servlet-mapping>
    <!-- 编码过滤器 -->
    <filter>
        <filter-name>encodingFilter</filter-name>
        <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
        <async-supported>true</async-supported>
        <init-param>
            <param-name>encoding</param-name>
            <param-value>UTF-8</param-value>
        </init-param>
    </filter>
    <filter-mapping>
        <filter-name>encodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
</web-app>

2.3.2测试

新建BloggerController

package ssm.blog.controller;

import jdk.internal.org.objectweb.asm.tree.analysis.Value;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

/**
 * Created by xp on 2017/4/13.
 * 博主控制器
 */
@Controller  //注册为控制器bean
@RequestMapping(value = "/blog")    //请求路径
public class BloggerController {

    @ResponseBody  //返回json数据
    @RequestMapping(value="/hello")
    public String hello(){
        return "hello";
    }

}

发布项目到tomcat 打开浏览器输入：http://localhost:8080/blog/hello 结果：

这里写图片描述

至此我们ssm三大框架已经整合完毕，接下来就是个人博客实战开发了

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原始发表：2017.04.13 ，如有侵权请联系 cloudcommunity@tencent.com 删除

系统架构

maven

mybatis

spring

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