【ssm个人博客项目实战01】SSM环境搭建

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

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:

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>
<!-- 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"/> 
</beans>

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、表格结构

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

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：
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