本帖最后由 小石姐姐 于 2019-7-25 18:12 编辑
4. 青橙-工程搭建
4.1 准备工作
(1)配置maven本地仓库 【资料/本地仓库】
(2)创建数据库表 【资料/建表语句】
(3)注册中心zookeeper 【资料/配套软件 】
4.2 模块依赖关系图
我们的工程有三种模块:(1)公共模块 (2)服务层模块 (3)web层模块。
公共模块主要由公共配置和公共类构成。模块依赖关系入下图:
4.3 工程搭建
4.3.1 父工程与公共模块
(1)创建父工程qingcheng_parent pom.xml内容参见资源/配置文件/主架构/父工程/pom.xml
(2)创建公共模块qingcheng_common,pom.xml内容参见资源/配置文件/主架构/公共模块/父公共模块/pom.xml resources下创建applicationContext-common.xml
<context:property-placeholder location="classpath*:*.properties" />
resources下创建dubbo-address.properties
dubbo.address=192.168.25.130:2181
resources下创建log4j.properties
### direct log messages to stdout ###
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target=System.err
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d{ABSOLUTE} %5p %c{1}:%L - %m%n
### direct messages to file mylog.log ###
log4j.appender.file=org.apache.log4j.FileAppender
log4j.appender.file.File=c:\\mylog.log
log4j.appender.file.layout=org.apache.log4j.PatternLayout
log4j.appender.file.layout.ConversionPattern=%d{ABSOLUTE} %5p %c{1}:%L - %m%n
### set log levels - for more verbose logging change 'info' to 'debug' ###
log4j.rootLogger=debug, stdout
(3)创建qingcheng_common_service ,pom.xml 参见资源/配置文件/主架构/公共模块/服务公共模块/pom.xml
[AppleScript] 纯文本查看 复制代码 resources下创建applicationContext-dao.xml
<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource"
destroy-method="close">
<property name="url" value="${jdbc.url}" />
<property name="username" value="${jdbc.username}" />
<property name="password" value="${jdbc.password}" />
<property name="driverClassName" value="${jdbc.driver}" />
<property name="maxActive" value="10" />
<property name="minIdle" value="5" />
</bean>
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="plugins">
<array>
<bean class="com.github.pagehelper.PageHelper">
<property name="properties">
<value>
dialect=mysql
</value>
</property>
</bean>
</array>
</property>
</bean>
<bean class="tk.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.qingcheng.dao" />
</bean>
<!-- 事务管理器 -->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource" />
</bean>
<tx:annotation-driven transaction-manager="transactionManager" proxy-target-class="true"/>
resources下创建applicationContext-dubbo.xml
<dubbo:protocol name="dubbo" port="${dubbo.port}"/>
<dubbo:application name="${dubbo.application}" />
<dubbo:registry protocol="zookeeper" address="192.168.25.130:2181" />
<dubbo:annotation package="com.qingcheng.service" />
(4)创建qingcheng_common_web模块,pom.xml
[AppleScript] 纯文本查看 复制代码 <dependency>
<groupId>com.qingcheng</groupId>
<artifactId>qingcheng_common</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>commons-fileupload</groupId>
<artifactId>commons-fileupload</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-config</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-taglibs</artifactId>
</dependency>
resources下创建applicationContext-json.xml
[AppleScript] 纯文本查看 复制代码 <mvc:annotation-driven>
<mvc:message-converters register-defaults="true">
<bean class="com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter">
<property name="supportedMediaTypes" value="application/json"/>
<property name="features">
<list>
<value>WriteMapNullValue</value>
<value>WriteDateUseDateFormat</value>
</list>
</property>
</bean>
</mvc:message-converters>
</mvc:annotation-driven>
resources下创建applicationContext-dubbo.xml
[AppleScript] 纯文本查看 复制代码 <!-- 引用dubbo 服务 -->
<dubbo:application name="${dubbo.application}" />
<dubbo:registry protocol="zookeeper" address="${dubbo.address}"/>
<dubbo:annotation package="com.qingcheng.controller" />
(5)创建实体层模块qingcheng_pojo,pom.xml
[AppleScript] 纯文本查看 复制代码 <dependency>
<groupId>javax.persistence</groupId>
<artifactId>persistence-api</artifactId>
<version>1.0</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.16.16</version>
<scope>provided</scope>
</dependency>
(6)创建服务接口层模块 qingcheng_interface ,pom.xml
[AppleScript] 纯文本查看 复制代码 <dependency>
<groupId>com.qingcheng</groupId>
<artifactId>qingcheng_pojo</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
4.3.2 服务层模块(商品)
(1)创建qingcheng_service_goods模块,pom.xml
[AppleScript] 纯文本查看 复制代码 <dependencies>
<dependency>
<groupId>com.qingcheng</groupId>
<artifactId>qingcheng_interface</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>com.qingcheng</groupId>
<artifactId>qingcheng_common_service</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.tomcat.maven</groupId>
<artifactId>tomcat7-maven-plugin</artifactId>
<configuration>
<!-- 指定端口 -->
<port>9001</port>
<!-- 请求路径 -->
<path>/</path>
</configuration>
</plugin>
</plugins>
</build>
(2)创建webapp/WEB-INF/web.xml
[AppleScript] 纯文本查看 复制代码 <!DOCTYPE web-app PUBLIC
"-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd" >
<web-app>
<display-name>Archetype Created Web Application</display-name>
<!-- 加载spring容器 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath*:applicationContext*.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
</web-app>
(3)resources下创建dubbo.properties
dubbo.port=20881
dubbo.application=goods
(4)resources下创建db.properties
[AppleScript] 纯文本查看 复制代码 jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/qingcheng_goods?characterEncoding=utf-8
jdbc.username=root
jdbc.password=123456
4.3.3 web层(管理后台)
(1)创建qingcheng_web_manager模块,pom.xml
[AppleScript] 纯文本查看 复制代码 <dependencies>
<dependency>
<groupId>com.qingcheng</groupId>
<artifactId>qingcheng_interface</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>com.qingcheng</groupId>
<artifactId>qingcheng_common_web</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.tomcat.maven</groupId>
<artifactId>tomcat7-maven-plugin</artifactId>
<configuration>
<!-- 指定端口 -->
<port>9101</port>
<!-- 请求路径 -->
<path>/</path>
</configuration>
</plugin>
</plugins>
</build>
(2)创建webapp/WEB-INF/web.xml
[AppleScript] 纯文本查看 复制代码 <web-app>
<display-name>Archetype Created Web Application</display-name>
<!-- 解决post乱码 -->
<filter>
<filter-name>CharacterEncodingFilter</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>utf-8</param-value>
</init-param>
<init-param>
<param-name>forceEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>CharacterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<servlet>
<servlet-name>springmvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!-- 指定加载的配置文件 ,通过参数contextConfigLocation加载 -->
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath*:applicationContext*.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springmvc</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
</web-app>
(3)resources下创建dubbo.properties
dubbo.application=manager
5. 青橙管理后台-品牌管理后端
5.1 需求分析
实现对品牌的基本操作(增删改查),只完成后端代码部分,并通过浏览器等工具完成测试。
5.2 表结构分析
tb_brand 品牌表
字段名称 字段含义 字段类型 字段长度 备注
id 品牌id INT
name 品牌名称 VARCHAR 100
image 品牌图片地址 VARCHAR 1000
letter 品牌的首字母 CHAR 1
seq 排序 INT
5.3 代码实现
5.3.1 品牌列表
url
/brand/findAll.do
http请求方式
GET
返回格式
[{
"id": 品牌id,
"name": 品牌名称,
"image": 品牌图片地址,
"letter": 品牌的首字母,
"seq": 排序,
},
.......
]
代码实现:
(1)在qingcheng_pojo工程创建com.qingcheng.pojo包,包下创建实体类
[AppleScript] 纯文本查看 复制代码 @Table(name="tb_brand")
public class Brand implements Serializable{
@Id
private Integer id;//品牌id
private String name;//品牌名称
private String image;//品牌图片地址
private String letter;//品牌的首字母
private Integer seq;//排序
// getter and setter ......
}
(2)qingcheng_service_goods工程创建com.qingcheng.dao,包下创建数据访问层接口
[AppleScript] 纯文本查看 复制代码 public interface BrandMapper extends Mapper<Brand> {
}
(3)qingcheng_interface工程创建com.qingcheng.service.goods包,包下创建业务接口
[AppleScript] 纯文本查看 复制代码 /**
* 品牌业务逻辑层
*/
public interface BrandService {
public List<Brand> findAll();
}
(4)qingcheng_service_goods工程创建com.qingcheng.service.impl包,包下创建类
[AppleScript] 纯文本查看 复制代码 @Service
public class BrandServiceImpl implements BrandService {
@Autowired
private BrandMapper brandMapper;
public List<Brand> findAll() {
return brandMapper.selectAll();
}
}
(5)qingcheng_web_manager工程创建com.qingcheng.controller.goods 包,包下创建类
[AppleScript] 纯文本查看 复制代码 @RestController
@RequestMapping("/brand")
public class BrandController {
@Reference
private BrandService brandService;
@GetMapping("/findAll")
public List<Brand> findAll(){
return brandService.findAll();
}
}
启动工程,浏览器测试:
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