二.SSM框架搭建

作者: Kingsber | 来源:发表于2018-11-10 22:53 被阅读0次

配置Maven

创建Source Folder文件夹，名为src/main/resources/spring

Snipaste_2018-11-10_22-46-40.png
在webapp下创建resources文件夹

Snipaste_2018-11-10_22-48-26.png

创建项目需要的包

Snipaste_2018-11-10_22-49-56.png

通过Maven引入项目所需要的架包，编写pom.xml文件
Maven依赖地址

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>com.kings</groupId>
    <artifactId>o2o</artifactId>
    <packaging>war</packaging>
    <version>0.0.1-SNAPSHOT</version>
    <name>o2o Maven Webapp</name>
    <url>http://maven.apache.org</url>
    <properties>
        <spring.version>4.3.7.RELEASE</spring.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
            <scope>test</scope>
        </dependency>
        <!-- 日志 -->
        <!-- 实现slf4j接口并整合 -->
        <dependency>
            <groupId>ch.qos.logback</groupId>
            <artifactId>logback-classic</artifactId>
            <version>1.2.3</version>
        </dependency>
        <!-- Spring核心 -->
        <!-- 1.包含Spring框架基本的核心工具类。Spring其他组件都要使用这个包里的类，是其他组件的基本核心 -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <!-- 2.这个jar文件是所有应用都要用到的，它包含访问配置文件、创建和管理bean以及进行Inversion of Control /Dependency 
            Injection(IOC/DI)操作相关的所有类。如果应用只需基本的IOC/DI支持，引入spring-core及spring-bean.jar文件就可以。 -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-beans</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <!-- 3.这个jar文件为spring核心提供了大量扩展。可以找到使用Spring ApplicationContext特性时所需的全部 
            所需的全部类，instrumentation组件以及校验Validation方面的相关类 -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <!-- 4.这个jar文件包含对Spring对JDBC数据库访问进行封装的所有类。 -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
            <version>${spring.version}</version>
        </dependency> 
        <!-- 5.为JDBC、Hibernate、JDO、JPA等提供的一致的声明式和编程式事务管理 -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-tx</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <!-- 6.Spring web包含web应用开发时，用到spring框架时所需的核心类，包括自动载入WebApplicationContext特性的类 -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <!-- 7.包含Spring-MVC框架相关的所有类 -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <!-- 8.Spring test对JUNIT等框架的简单封装 -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>${spring.version}</version>
            <scope>test</scope>
        </dependency>
        <!-- Servlet web -->
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <version>3.1.0</version>
        </dependency>
        <!-- json解析 -->
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
            <version>2.8.7</version>
        </dependency>
        <!-- Map工具类 对标准Java Collection的扩展 spring-core.jar需commons-collection.jar -->
        <dependency>
            <groupId>commons-collections</groupId>
            <artifactId>commons-collections</artifactId>
            <version>3.2</version>
        </dependency>
        <!-- DAO:MyBatis -->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.4.2</version>
        </dependency>
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>1.3.1</version>
        </dependency>
        <!-- 数据库 -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>8.0.11</version>
        </dependency>
        <!-- 连接池 -->
        <dependency>
            <groupId>c3p0</groupId>
            <artifactId>c3p0</artifactId>
            <version>0.9.1.2</version>
        </dependency>
        
    </dependencies>
    <build>
        <finalName>o2o</finalName>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.6.1</version>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                    <encoding>UTF8</encoding>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

在src/main/resources目录下编辑jdbc.properties文件

jdbc.driver=com.mysql.cj.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/o2o?useUnicode=true&characterEncoding=utf8&useSSL=false
jdbc.username=root
jdbc.password=root

在src/main/resources目录下新建mybatis-config.xml

<?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>
    <!-- 配置全局属性 -->
    <settings>
        <!-- 使用jdbc的getGeneratedKeys获取数据库自增主键值 -->
        <setting name="useGeneratedKeys" value="true"/>
        
        <!-- 使用列标签替换列名  默认：true -->
        <setting name="useColumnLabel" value="true"/>
        
        <!-- 开启驼峰命名转换：Table{create_time} -> Entity{createTime} -->
        <setting name="mapUnderscoreToCamelCase" value="true"/>
    </settings>
  </configuration>

在src/main/resources/spring目录下创建spring-dao.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"
    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">
    <!-- 配合整合mybatis过程 -->
    <!-- 1.配置数据库相关参数properties的属性：${url} -->
    <context:property-placeholder location="classpath:jdbc.properties"/>
    
    <!-- 2.数据库连接池 -->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <!-- 配置连接池属性 -->
        <property name="driverClass" value="${jdbc.driver}"/>
        <property name="jdbcUrl" value="${jdbc.url}"/>
        <property name="user" value="${jdbc.username}"/>
        <property name="password" value="${jdbc.password}"/>
        
        <!-- c3p0连接池的私有属性 -->
        <property name="maxPoolSize" value="30"/>
        <property name="minPoolSize" value="10"/>
        <!-- 关闭连接后不自动commit -->
        <property name="autoCommitOnClose" value="false"/>
        <!-- 获取连接超时时间 -->
        <property name="checkoutTimeout" value="10000"/>
        <!-- 当获取连接失败重试次数 -->
        <property name="acquireRetryAttempts" value="2"/>
    </bean>
    
    <!-- 3.配置SqlSessionFactory对象 -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <!-- 注入数据库连接池 -->
        <property name="dataSource" ref="dataSource"/>
        <!-- 配置MyBaties全局配置文件：mybatis-config.xml -->
        <property name="configLocation" value="classpath:mybatis-config.xml"/>
        <!-- 扫描entity包  使用别名 -->
        <property name="typeAliasesPackage" value="com.kings.o2o.entity"/>
        <!-- 扫描sql配置文件：mapper需要的xml文件 -->
        <property name="mapperLocations" value="classpath:mapper/*.xml"/>
    </bean>
    
    <!-- 4.配置扫描Dao接口包，动态实现Dao接口，注入到spring容器中 -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <!-- 注入sqlSessionFactory -->
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
        <!-- 给出需要扫描Dao接口包 -->
        <property name="basePackage" value="com.kings.o2o.dao"/>
    </bean>
</beans>

在src/main/resources/spring目录下创建spring-service.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:tx="http://www.springframework.org/schema/tx"
    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/tx
    http://www.springframework.org/schema/tx/spring-tx.xsd">
    <!-- 扫描service包下所有使用注解的类型 -->
    <context:component-scan base-package="com.kings.o2o.service"/>
    
    <!-- 配置事务管理器 -->
    <bean id="transactionManager"
        class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <!-- 注入数据库连接池 -->
        <property name="dataSource" ref="dataSource"/>
    </bean>
    
    <!-- 配置基于注解的声明式事务 -->
    <tx:annotation-driven transaction-manager="transactionManager"/>
</beans>

在src/main/resources/spring目录下创建spring-web.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-3.2.xsd">
    <!-- 配置SpringMVC -->
    <!-- 1.开启SpringMVC注解模式  (注解驱动) -->
    <mvc:annotation-driven />
    
    <!-- 2.静态资源默认servlet配置
            (1)加入对静态资源的处理:js,gif,png
            (2)允许使用"/"做整体映射 -->
    <mvc:resources location="/resources/" mapping="/resources/**" />
    <mvc:default-servlet-handler />
    
    <!-- 3.定义视图解析器 -->
    <bean id="viewResolver"
        class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/html/"></property>
        <property name="suffix" value=".html"></property>
    </bean>
    
    <!-- 4.扫描web相关的bean -->
    <context:component-scan base-package="com.kings.o2o.web" />
</beans>

修改web.xml文件

<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee
                    http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
 version="3.1" metadata-complete="true">
  <display-name>Archetype Created Web Application</display-name>
  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
    <welcome-file>index.html</welcome-file>
  </welcome-file-list>
  <servlet>
    <servlet-name>spring-dispatcher</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:spring/spring-*.xml</param-value>
    </init-param>
  </servlet>
  <servlet-mapping>
    <servlet-name>spring-dispatcher</servlet-name>
    <!-- 默认匹配所有的请求 -->
    <url-pattern>/</url-pattern>
  </servlet-mapping>
</web-app>

验证Dao层

在dao包下创建AreaDao接口文件

package com.kings.o2o.dao;

import java.util.List;

import com.kings.o2o.entity.Area;

public interface AreaDao {
    /**
     * 列出区域列表
     * @return areaList
     */
    List<Area> queryArea();
}

在src/main/resources/mapper路径下创建AreaDao.xml文件

<?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="com.kings.o2o.dao.AreaDao">
    <select id="queryArea" resultType="com.kings.o2o.entity.Area">
        SELECT area_id,area_name,priority,create_time,last_eait_time
        FROM tb_area
        ORDER BY priority DESC
    </select>
</mapper>

在数据表tb_area中插入测试数据

Snipaste_2018-11-10_22-51-37.png
在src/test/java路径下的com.kings.o2o.dao下创建AreaDaoTest.java 测试类
在src/test/java路径下的com.kings.o2o下创建BaseTest.java 基类

package com.imooc.o2o;

import org.junit.runner.RunWith;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

/*
 * 配置spring和junit整合，junit启动时加载springIOC容器
 */
@RunWith(SpringJUnit4ClassRunner.class)
//告诉junit spring配置文件的位置
@ContextConfiguration({"classpath:spring/spring-dao.xml"})
public class BaseTest {

}

package com.kings.o2o.dao;

import static org.junit.Assert.assertEquals;

import java.util.List;

import org.junit.Test;
import org.springframework.beans.factory.annotation.Autowired;

import com.kings.o2o.BaseTest;
import com.kings.o2o.entity.Area;

public class AreaDaoTest extends BaseTest{
    @Autowired
    private AreaDao areaDao;
    
    @Test
    public void testQueryArea(){
        List<Area> areaList = areaDao.queryArea();
        assertEquals(2,areaList.size());
    }
}

运行测试文件，JUnit进度条绿色，测试成功。

Snipaste_2018-11-10_22-52-45.png

控制台打印输出

Snipaste_2018-11-10_22-53-19.png

验证Service

在com.kings.o2o.service路径下创建interface文件AreaService.java

package com.kings.o2o.service;

import java.util.List;

import com.kings.o2o.entity.Area;

public interface AreaService {
    List<Area> getAreaList();
}

在com.kings.o2o.service.impl路径下创建AreaServiceImpl.java

package com.kings.o2o.service.impl;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import com.kings.o2o.dao.AreaDao;
import com.kings.o2o.entity.Area;
import com.kings.o2o.service.AreaService;

@Service
public class AreaServiceImpl implements AreaService{
    @Autowired
    private AreaDao areaDao;
    
    @Override
    public List<Area> getAreaList() {
        return areaDao.queryArea();
    }
    
}

在src/test/java路径下的com.kings.o2o.service包下，创建AreaServiceTest.java 测试类

package com.kings.o2o.service;

import static org.junit.Assert.assertEquals;

import java.util.List;

import org.junit.Test;
import org.springframework.beans.factory.annotation.Autowired;

import com.kings.o2o.BaseTest;
import com.kings.o2o.entity.Area;

public class AreaServiceTest extends BaseTest{
    @Autowired
    private AreaService areaService;
    
    @Test
    public void testGetAreaList(){
        List<Area> areaList = areaService.getAreaList();
        assertEquals("西苑",areaList.get(0).getAreaName());
    }
}

修改BaseTest.java文件

package com.kings.o2o;

import org.junit.runner.RunWith;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

/**
 * 配置spring和junit整合，junit启动时加载springIOC容器
 * @author User
 *
 */
@RunWith(SpringJUnit4ClassRunner.class)
//告诉junit spring配置文件的位置
@ContextConfiguration({"classpath:spring/spring-dao.xml","classpath:spring/spring-service.xml"})
public class BaseTest {

}

运行AreaServiceTest 测试文件，JUnit进度条绿色，测试成功。

验证Controller

在com.kings.o2o.web.superadmin包下，创建AreaController.java类

package com.kings.o2o.web.superadmin;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;

import com.kings.o2o.entity.Area;
import com.kings.o2o.service.AreaService;

@Controller
@RequestMapping("/superadmin")
public class AreaController {

    @Autowired
    private AreaService areaService;
    @RequestMapping(value = "/listarea",method = RequestMethod.GET)
    @ResponseBody
    private Map<String,Object> listArea(){
        Map<String, Object> modelMap = new HashMap<String,Object>();
        List<Area> list = new ArrayList<Area>();
        try {
            list = areaService.getAreaList();
            modelMap.put("rows", list);
            modelMap.put("total", list.size());
        }catch(Exception e){
            e.printStackTrace();
            modelMap.put("success", false);
            modelMap.put("errMsg", e.toString());
        }
        return modelMap;
    }

}

启动tomcat，在浏览器地址栏输入路径

Snipaste_2018-11-10_23-02-38.png

测试成功

二.SSM框架搭建

配置Maven

验证Dao层

验证Service

验证Controller

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