ssm个人博客day01

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

    <dependency>
      <groupId>javax.servletgroupId>
      <artifactId>javax.servlet-apiartifactId>
      <version>3.1.0version>
    dependency>
    
    <dependency>
      <groupId>javax.servlet.jspgroupId>
      <artifactId>javax.servlet.jsp-apiartifactId>
      <version>2.3.1version>
    dependency>
    
    <dependency>
      <groupId>javax.servletgroupId>
      <artifactId>jstlartifactId>
      <version>1.1.2version>
    dependency>
    <dependency>
      <groupId>taglibsgroupId>
      <artifactId>standardartifactId>
      <version>1.1.2version>
    dependency>

    
    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-coreartifactId>
      <version>4.3.0.RELEASEversion>
    dependency>
    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-beansartifactId>
      <version>4.3.0.RELEASEversion>
    dependency>
    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-contextartifactId>
      <version>4.3.0.RELEASEversion>
    dependency>
    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-context-supportartifactId>
      <version>4.3.0.RELEASEversion>
    dependency>
    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-webartifactId>
      <version>4.3.0.RELEASEversion>
    dependency>
    
    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-testartifactId>
      <version>4.3.0.RELEASEversion>
    dependency>
    
    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-webmvcartifactId>
      <version>4.3.0.RELEASEversion>
    dependency>
    
    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-txartifactId>
      <version>4.3.0.RELEASEversion>
    dependency>
    
    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-jdbcartifactId>
      <version>4.3.0.RELEASEversion>
    dependency>
    
    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-aopartifactId>
      <version>4.3.0.RELEASEversion>
    dependency>
    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-aspectsartifactId>
      <version>4.3.0.RELEASEversion>
    dependency>

    
    <dependency>
      <groupId>org.mybatisgroupId>
      <artifactId>mybatisartifactId>
      <version>3.4.0version>
    dependency>
    <dependency>
      <groupId>org.mybatisgroupId>
      <artifactId>mybatis-springartifactId>
      <version>1.3.0version>
    dependency>

    
    <dependency>
      <groupId>mysqlgroupId>
      <artifactId>mysql-connector-javaartifactId>
      <version>5.1.30version>
    dependency>

    
    <dependency>
      <groupId>com.alibabagroupId>
      <artifactId>druidartifactId>
      <version>1.0.16version>
    dependency>

    
    <dependency>
      <groupId>log4jgroupId>
      <artifactId>log4jartifactId>
      <version>1.2.17version>
    dependency>
    <dependency>
      <groupId>org.slf4jgroupId>
      <artifactId>slf4j-apiartifactId>
      <version>1.7.21version>
    dependency>
    
     <dependency>
      <groupId>commons-logginggroupId>
      <artifactId>commons-loggingartifactId>
      <version>1.2version>
    dependency>
    
    <dependency>
      <groupId>junitgroupId>
      <artifactId>junitartifactId>
      <version>4.12version>
      <scope>testscope>
    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

<configuration>
    
    <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

<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">
 
 <context:component-scan base-package="ssm.blog"/>
 
 <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>
 
 <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
     <property name="dataSource" ref="dataSource"/>
     
     <property name="mapperLocations" value="classpath:mapper/*.xml"/>
     
     <property name="configLocation" value="classpath:mybatis-conf.xml"/>
 bean>

 
 <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
     <property name="basePackage" value="ssm.blog.dao"/>
     <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
 bean>
   
 <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">  
     <property name="dataSource" ref="dataSource" />  
 bean>  

   
 <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

<mapper namespace="ssm.blog.dao.BloggerDao">
    
    <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>
    
    <sql id="BloggerColumns">
        id,username,password,profile,nickname,sign,imagename
    sql>
    
    <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

<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">

    
    <context:component-scan base-package="ssm.blog.controller"/>
    
    <mvc:annotation-driven/>
    
    <mvc:resources location="/static/" mapping="/static/**"/>
    
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        
        <property name="prefix" value="/"/>
        
        <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

<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">

    
    <context-param>
        <param-name>contextConfigLocationparam-name>
        <param-value>classpath:spring-beans.xmlparam-value>
    context-param>
    
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListenerlistener-class>
    listener>
    
    <servlet>
        <servlet-name>dispatcherServletservlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServletservlet-class>
        
        <init-param>
            <param-name>contextConfigLocationparam-name>
            <param-value>classpath:spring-mvc.xmlparam-value>
        init-param>
        <load-on-startup>1load-on-startup>
        <async-supported>trueasync-supported>
    servlet>
    <servlet-mapping>
        <servlet-name>dispatcherServletservlet-name>
        <url-pattern>*.dourl-pattern>
    servlet-mapping>
    <servlet-mapping>
        <servlet-name>dispatcherServletservlet-name>
        <url-pattern>*.htmlurl-pattern>
    servlet-mapping>
    
    <filter>
        <filter-name>encodingFilterfilter-name>
        <filter-class>org.springframework.web.filter.CharacterEncodingFilterfilter-class>
        <async-supported>trueasync-supported>
        <init-param>
            <param-name>encodingparam-name>
            <param-value>UTF-8param-value>
        init-param>
    filter>
    <filter-mapping>
        <filter-name>encodingFilterfilter-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(如果不能正确运行注释掉)
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