【ssm我的博客項目實戰01】SSM環境搭建

時間 2019-12-04

原文原文鏈接

前言

今天開始就作一個我的博客實戰項目了,首先就項目環境的搭建，萬丈高樓平地起。這篇 博客主要講解基於maven的ssm項目整合。

一、ssm系統架構

這裏寫圖片描述

整合步驟css

第一步:html

　　MyBatis和Spring整合，經過Spring管理mapper接口。java

　　使用mapper的掃描器自動掃描mapper接口在Spring中進行註冊。mysql

第二步：web

　　經過Spring管理Service接口。spring

　　使用配置方式將Service接口配置在Spring配置文件中。sql

　　實現事務控制。數據庫

第三步：apache

　　因爲SpringMVC是Spring的模塊，無需整合這兩個。編程

項目架構:

這裏寫圖片描述

下面講解部分包/文件做用

mapper:存放mybatis的mapper文件夾
log4j.properties:log4j日誌屬性文件
mybatis-conf.xml:mybatis全局配置文件
spring-bean.xml:spring與mybatis整合配置文件
spring-mvc.xml:spring mvc配置文件

下面就開始咱們的項目整合吧

二、項目整合

2.一、新建maven項目添加依賴

maven是一個優秀的項目對象管理器工具我能夠經過在pom.xml中添加須要的jar包的依賴就能夠導入對應的jar包了，很是的方便。
下面就列出整合ssm所對應的依賴

<!-- 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 事務管理支持-->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-tx</artifactId>
      <version>4.3.0.RELEASE</version>
    </dependency>
    <!--spring jdbc操做支持-->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-jdbc</artifactId>
      <version>4.3.0.RELEASE</version>
    </dependency>
    <!--spring aop編程支持-->
    <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驅動包 -->
    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>5.1.30</version>
    </dependency>

    <!-- 添加阿里巴巴鏈接池Druid支持 -->
    <dependency>
      <groupId>com.alibaba</groupId>
      <artifactId>druid</artifactId>
      <version>1.0.16</version>
    </dependency>

    <!-- 添加log4j日誌 -->
    <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與mybatis整合

2.2.1 新建mybatis-conf.xml文件

這個文件主要配置mybatis全局配置文件
例如別名駝峯命名自動轉換等在這裏我暫時只配置別名

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

2.2.2新建spring-beans.xml文件

整合主要步驟

開啓包掃描
配置druid數據源
列表內容
配置sqlSessionFactory
開啓mybatis dao接口掃描

具體配置註解講的很清楚

<?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">
    <!-- 開啓包掃描-->
    <context:component-scan base-package="ssm.blog"/>
    <!-- 配置druid數據源 -->
    <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"/>
        <!-- 自動掃描mapper.xml文件-->
        <property name="mapperLocations" value="classpath:mapper/*.xml"/>
        <!-- 載入mybatis全局配置文件-->
        <property name="configLocation" value="classpath:mybatis-conf.xml"/>
    </bean>

    <!-- 配置mybatis dao接口掃描-->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="ssm.blog.dao"/>
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
    </bean>
</beans>
<!-- 配置spring的聲明式事務，名字爲默認值 -->  
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">  
        <property name="dataSource" ref="dataSource" />  
    </bean>  

    <!-- 開啓事務控制的註解支持 -->  
    <tx:annotation-driven transaction-manager="transactionManager"/>、、

如今mybatis與spring整合已經算完成了接下來咱們測試一下

2.2.3測試spring與mybatis整合

一、表結構

這裏寫圖片描述

sql 文件

DROP DATABASE IF EXISTS db_blog;
/*建立數據庫，並設置編碼*/
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 '博主密碼',
  `profile` TEXT COMMENT '博主信息',
  `nickname` VARCHAR(50) DEFAULT NULL COMMENT '博主暱稱',
  `sign` VARCHAR(100) DEFAULT NULL COMMENT '博主簽名',
  `imagename` VARCHAR(100) DEFAULT NULL COMMENT '博主頭像路徑',
  PRIMARY KEY (`id`)
) ENGINE=INNODB AUTO_INCREMENT=2 DEFAULT CHARSET=utf8;

二、實體類

package ssm.blog.entity;

import org.springframework.stereotype.Component;

import java.io.Serializable;

/**
 * Created by xp on 2017/4/13.
 * @author xp
 * @Description 博主信息實體類
 */
@Component  //註冊bean 爲spring容器管理
public class Blogger implements Serializable {

    private Integer id;
    private String userName;    //用戶名
    private String password;    //密碼
    private String profile;     //博主信息
    private String nickName;    //暱稱
    private String sign;        //博主簽名
    private String imageName;   //圖片路徑

    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 + '\'' +
                '}';
    }
}

三、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 //註冊爲持久層的bean
public interface BloggerDao {
    /**
     * 查詢博主信息
     * @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">
    <!--
        返回結果映射
        若是開啓駝峯命名轉換且命名規範該段代碼能夠不寫
        由於配置別名 因此type屬性使用的是mybatis-conf中的別名
        -->
    <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>
    <!--  定義字段集合 -->
    <sql id="BloggerColumns">
        id,username,password,profile,nickname,sign,imagename
    </sql>
    <!-- 接口中getBloggerData 具體實現-->
    <select id="getBloggerData" resultMap="BloggerResult">
            select <include refid="BloggerColumns"/>    from t_blogger where id = 1
    </select>
</mapper>

四、log4j.properties 文件
建立log4j.properties 打印日誌查看執行sql語句

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

五、建立測試類並測試
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測試
@ContextConfiguration(locations = "classpath:spring-beans.xml") //設置spring配置文件路徑
public class BloggerDaoTest {

    @Resource   //注入BloggerDao對象
    private BloggerDao bloggerDao;

    @Test
    public void getBloggerData() throws Exception {
        Blogger blogger = bloggerDao.getBloggerData();
        System.out.println(blogger);
    }

}

打印結果

這裏寫圖片描述

成功打印結果說明spring與mybatis整合成功。

2.3spring與springmvc整合

2.3.1建立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">

    <!-- 掃描全部ssm.blog.controller包下面的全部controller -->
    <context:component-scan base-package="ssm.blog.controller"/>
    <!-- 開啓註解配置-->
    <mvc:annotation-driven/>
    <!-- 靜態資源解析，包括js,css,img... -->
    <mvc:resources location="/static/" mapping="/static/**"/>
    <!-- 配置視圖解析器-->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <!--視圖前綴-->
        <property name="prefix" value="/"/>
        <!--視圖後綴-->
        <property name="suffix" value=".jsp"/>
    </bean>
</beans>

2.3.2 配置web.xml文件

註釋講的很清楚我就再也不講了

<?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配置文件路徑-->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:spring-beans.xml</param-value>
    </context-param>
    <!-- 配置spring監聽器-->
    <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>
        <!-- 初始化參數配置 springnvc配置文件路徑-->
        <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>
    <!-- 編碼過濾器 -->
    <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測試

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  //註冊爲控制器bean
@RequestMapping(value = "/blog")    //請求路徑
public class BloggerController {

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

}

發佈項目到tomcat
打開瀏覽器輸入：http://localhost:8080/blog/hello
結果：

這裏寫圖片描述

至此咱們ssm三大框架已經整合完畢，接下來就是我的博客實戰開發了