前言
今天開始就做一個個人博客實戰項目了,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。
1、ssm系統架構
整合步驟
第一步:
MyBatis和Spring整合,通過Spring管理mapper接口。
使用mapper的掃描器自動掃描mapper接口在Spring中進行註冊。
第二步:
通過Spring管理Service接口。
使用配置方式將Service接口配置在Spring配置文件中。
實現事務控制。
第三步:
由於SpringMVC是Spring的模塊,無需整合這兩個。
項目架構:
下面講解部分包/文件作用
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
下面就開始我們的項目整合吧
2、項目整合
2.1、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 我可以通過在pom.xml中添加需要的jar包的依賴就可以導入對應的jar包了,非常的方便。
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操作支持-->
<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>
<!-- 添加阿里巴巴連接池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>
<!-- 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"/>
</beans>
現在mybatis與spring整合已經算完成了 接下來我們測試一下
2.2.3測試spring與mybatis整合
1、表格結構
sql 文件
DROP DATABASE IF EXISTS db_blog;
/*創建數據庫,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;
2、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 + '\'' +
'}';
}
}
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 //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
如果開啓駝峯命名轉換且命名規範該段代碼可以不寫
因爲配置別名 所以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>
4、log4j.properties 文件
創建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
5、創建測試類並測試
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
成功打印結果 說明spring與mybatis整合成功。
2.3spring與springmvc整合
2.3.1創建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">
<!-- 掃描所有ssm.blog.controller包下面的所有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 我就不再講了
<?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:
至此我們ssm三大框架已經整合完畢,接下來就是個人博客實戰開發了