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中間件 ZK分布式專題與Dubbo微服務入門 8-3 單體到分層模式代碼演示

0　　　　課程地址

https://coding.imooc.com/lesson/201.html#mid=12741

1　　　　重點關注

1.1　　　　本節內容

mybaties生成mapper及pojo

單體到分層代碼演示

maven搭建的Spring工程依賴關系

2　　　　課程內容

2.1　　　　單體到分層代碼演示

web->service->mapper->pojo->common

2.2　　　　Spring項目配置文件簡介（SpringMVC都過時了吧，這塊之后用到了再來細看）

父項目和子項目的pom,

子項目的mybaties生成mapper的generatorConfig.xml,

子項目的db.properties，

子項目的log4j.properties，

子項目web的springmvc.xml

子項目配置的dao.xml等等

3　　　　Coding

3.1　　　　mybaties生成Mapper(注意：數據庫版本一定要對上)

generatorConfig.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE generatorConfiguration
  PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN"
  "http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">

<generatorConfiguration>
    <context id="testTables" targetRuntime="MyBatis3">
        <commentGenerator>
            <!-- 是否去除自動生成的注釋 true：是 ： false:否 -->
            <property name="suppressAllComments" value="true" />
        </commentGenerator>
        <!--數據庫連接的信息：驅動類、連接地址、用戶名、密碼 -->
        <jdbcConnection 
            driverClass="com.mysql.jdbc.Driver"
            connectionURL="jdbc:mysql://localhost:3306/mysql" userId="root"
            password="root">
        </jdbcConnection>
        <!-- 默認false，把JDBC DECIMAL 和 NUMERIC 類型解析為 Integer，為 true時把JDBC DECIMAL 和 
            NUMERIC 類型解析為java.math.BigDecimal -->
        <javaTypeResolver>
            <property name="forceBigDecimals" value="false" />
        </javaTypeResolver>

        <!-- targetProject:生成PO類的位置 -->
        <javaModelGenerator 
            targetPackage="com.imooc.pojo"
            targetProject=".\src">
            <!-- enableSubPackages:是否讓schema作為包的后綴 -->
            <property name="enableSubPackages" value="false" />
            <!-- 從數據庫返回的值被清理前后的空格 -->
            <property name="trimStrings" value="true" />
        </javaModelGenerator>
        <!-- targetProject:mapper映射文件生成的位置 -->
        <sqlMapGenerator 
            targetPackage="com.imooc.mapper" 
            targetProject=".\src">
            <!-- enableSubPackages:是否讓schema作為包的后綴 -->
            <property name="enableSubPackages" value="false" />
        </sqlMapGenerator>
        <!-- targetPackage：mapper接口生成的位置 -->
        <javaClientGenerator 
            type="XMLMAPPER"
            targetPackage="com.imooc.mapper" 
            targetProject=".\src">
            <!-- enableSubPackages:是否讓schema作為包的后綴 -->
            <property name="enableSubPackages" value="false" />
        </javaClientGenerator>
        <!-- 指定數據庫表 -->
        <table schema="" tableName="student"></table>
        <table schema="" tableName="T_DDWEI"></table>

    </context>
</generatorConfiguration>

3.2　　　　Spring微服務如何定義版本

在最外層聚合項目的pom文件定義所有的依賴和版本（最外層只進行依賴不進行實際的使用），內層子項目pom文件把依賴加進來，并且不用寫版本號。

如：

最外層pom:

<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/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>com.imooc</groupId>
    <artifactId>imooc-single-mvc</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>pom</packaging>
    
    <!-- 集中定義依賴版本號 -->
    <properties>
        <spring.version>4.3.13.RELEASE</spring.version>
        <spring-data-redis.version>1.8.7.RELEASE</spring-data-redis.version>
        <apache-commons-pool2>2.4.2</apache-commons-pool2>
        <mybatis.version>3.2.8</mybatis.version>
        <mybatis.spring.version>1.2.2</mybatis.spring.version>
        <mybatis.paginator.version>1.2.15</mybatis.paginator.version>
        <mysql.version>8.0.29</mysql.version>
        <slf4j.version>1.7.21</slf4j.version>
        <jackson.version>2.7.4</jackson.version>
        <druid.version>1.1.0</druid.version>
        <httpclient.version>4.3.5</httpclient.version>
        <jstl.version>1.2</jstl.version>
        <servlet-api.version>2.5</servlet-api.version>
        <jsp-api.version>2.0</jsp-api.version>
        <commons-lang3.version>3.3.2</commons-lang3.version>
        <commons-io.version>1.3.2</commons-io.version>
        <commons-net.version>3.3</commons-net.version>
        <pagehelper.version>4.1.3</pagehelper.version>
        <!-- 使用redisTamplate結合jedisPoolConifg 必須使用jedis版本2.9.0 -->
        <jedis.version>2.9.0</jedis.version>
        <commons.httpclient.version>3.1</commons.httpclient.version>
        <dubbo.version>2.5.3</dubbo.version>
        <zookeeper.version>3.4.11</zookeeper.version>
        <zkclient.version>0.1</zkclient.version>
        <apache.curator.version>4.0.0</apache.curator.version>
    </properties>
    
    <!-- 只定義依賴的版本，不會實際依賴 -->
    <dependencyManagement>
        <dependencies>

            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-jms</artifactId>
                <version>${spring.version}</version>
            </dependency>

            <!-- Apache工具組件 -->
            <dependency>
                <groupId>org.apache.commons</groupId>
                <artifactId>commons-lang3</artifactId>
                <version>${commons-lang3.version}</version>
            </dependency>
            <dependency>
                <groupId>org.apache.commons</groupId>
                <artifactId>commons-io</artifactId>
                <version>${commons-io.version}</version>
            </dependency>
            <dependency>
                <groupId>commons-net</groupId>
                <artifactId>commons-net</artifactId>
                <version>${commons-net.version}</version>
            </dependency>
            <!-- Jackson Json處理工具包 -->
            <dependency>
                <groupId>com.fasterxml.jackson.core</groupId>
                <artifactId>jackson-databind</artifactId>
                <version>${jackson.version}</version>
            </dependency>
            <dependency>
                <groupId>com.fasterxml.jackson.core</groupId>
                <artifactId>jackson-core</artifactId>
                <version>${jackson.version}</version>
            </dependency>
            <dependency>
                <groupId>com.fasterxml.jackson.core</groupId>
                <artifactId>jackson-annotations</artifactId>
                <version>${jackson.version}</version>
            </dependency>
            <!-- httpclient -->
            <dependency>
                <groupId>org.apache.httpcomponents</groupId>
                <artifactId>httpclient</artifactId>
                <version>${httpclient.version}</version>
            </dependency>

            <!-- Mybatis -->
            <dependency>
                <groupId>org.mybatis</groupId>
                <artifactId>mybatis</artifactId>
                <version>${mybatis.version}</version>
            </dependency>
            <dependency>
                <groupId>org.mybatis</groupId>
                <artifactId>mybatis-spring</artifactId>
                <version>${mybatis.spring.version}</version>
            </dependency>
            <dependency>
                <groupId>com.github.miemiedev</groupId>
                <artifactId>mybatis-paginator</artifactId>
                <version>${mybatis.paginator.version}</version>
            </dependency>
            <dependency>
                <groupId>com.github.pagehelper</groupId>
                <artifactId>pagehelper</artifactId>
                <version>${pagehelper.version}</version>
            </dependency>
            <!-- MySql -->
            <dependency>
                <groupId>mysql</groupId>
                <artifactId>mysql-connector-java</artifactId>
                <version>${mysql.version}</version>
            </dependency>

            <!-- 連接池 阿里巴巴數據源 全世界最牛逼的data source 沒有之一 -->
            <dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>druid</artifactId>
                <version>${druid.version}</version>
            </dependency>
            <!-- Spring -->
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-core</artifactId>
                <version>${spring.version}</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-context</artifactId>
                <version>${spring.version}</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-context-support</artifactId>
                <version>${spring.version}</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-beans</artifactId>
                <version>${spring.version}</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-webmvc</artifactId>
                <version>${spring.version}</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-jdbc</artifactId>
                <version>${spring.version}</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-aspects</artifactId>
                <version>${spring.version}</version>
            </dependency>
            <dependency>
                <groupId>org.springframework.data</groupId>
                <artifactId>spring-data-redis</artifactId>
                <version>${spring-data-redis.version}</version>
            </dependency>
            <!-- 用于jedis-spring-data redisTemplate -->
            <dependency>
                <groupId>org.apache.commons</groupId>
                <artifactId>commons-pool2</artifactId>
                <version>${apache-commons-pool2}</version>
            </dependency>
            <!-- JSP相關 -->
            <dependency>
                <groupId>jstl</groupId>
                <artifactId>jstl</artifactId>
                <version>${jstl.version}</version>
            </dependency>
            <dependency>
                <groupId>javax.servlet</groupId>
                <artifactId>servlet-api</artifactId>
                <version>${servlet-api.version}</version>
                <scope>provided</scope>
            </dependency>
            <dependency>
                <groupId>javax.servlet</groupId>
                <artifactId>jsp-api</artifactId>
                <version>${jsp-api.version}</version>
                <scope>provided</scope>
            </dependency>
            <!-- Redis客戶端 -->
            <dependency>
                <groupId>redis.clients</groupId>
                <artifactId>jedis</artifactId>
                <version>${jedis.version}</version>
            </dependency>

            <!-- httpclient -->
            <dependency>
                <groupId>commons-httpclient</groupId>
                <artifactId>commons-httpclient</artifactId>
                <version>${commons.httpclient.version}</version>
            </dependency>

            <!-- 日志處理 -->
            <dependency>
                <groupId>org.slf4j</groupId>
                <artifactId>slf4j-api</artifactId>
                <version>${slf4j.version}</version>
            </dependency>
            <dependency>
                <groupId>org.slf4j</groupId>
                <artifactId>slf4j-log4j12</artifactId>
                <version>${slf4j.version}</version>
            </dependency>

            <!-- 引入dubbo -->
            <dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>dubbo</artifactId>
                <version>${dubbo.version}</version>
            </dependency>
            <dependency>
                <groupId>org.apache.zookeeper</groupId>
                <artifactId>zookeeper</artifactId>
                <version>${zookeeper.version}</version>
            </dependency>
            <dependency>
                <groupId>com.github.sgroschupf</groupId>
                <artifactId>zkclient</artifactId>
                <version>${zkclient.version}</version>
            </dependency>
            
            <!-- zk 客戶端依賴 -->
            <dependency>
                <groupId>org.apache.curator</groupId>
                <artifactId>curator-framework</artifactId>
                <version>${apache.curator.version}</version>
            </dependency>
            <dependency>
                <groupId>org.apache.curator</groupId>
                <artifactId>curator-recipes</artifactId>
                <version>${apache.curator.version}</version>
            </dependency>
            
        </dependencies>

    </dependencyManagement>

    <build>
        <finalName>${project.artifactId}</finalName>
        <plugins>
            <!-- 資源文件拷貝插件 -->
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-resources-plugin</artifactId>
                <version>2.7</version>
                <configuration>
                    <encoding>UTF-8</encoding>
                </configuration>
            </plugin>
            <!-- java編譯插件 -->
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.2</version>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                    <encoding>UTF-8</encoding>
                </configuration>
            </plugin>
        </plugins>
        <pluginManagement>
            <plugins>
                <!-- 配置Tomcat插件 -->
                <plugin>
                    <groupId>org.apache.tomcat.maven</groupId>
                    <artifactId>tomcat7-maven-plugin</artifactId>
                    <version>2.2</version>
                </plugin>

                <!-- 配置sts插件 -->
                <plugin>
                    <artifactId>maven-eclipse-plugin</artifactId>
                    <version>2.9</version>
                </plugin>
            </plugins>
        </pluginManagement>
    </build>
    
    <modules>
        <module>imooc-single-mvc-common</module>
        <module>imooc-single-mvc-pojo</module>
        <module>imooc-single-mvc-mapper</module>
        <module>imooc-single-mvc-service-item</module>
        <module>imooc-single-mvc-service-order</module>
        <module>imooc-single-mvc-web</module>
    </modules>
</project>

service的pom

<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/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>com.imooc</groupId>
        <artifactId>imooc-single-mvc</artifactId>
        <version>0.0.1-SNAPSHOT</version>
    </parent>
    <artifactId>imooc-single-mvc-service-order</artifactId>
    
    <dependencies>
        <dependency>
            <groupId>com.imooc</groupId>
            <artifactId>imooc-single-mvc-mapper</artifactId>
            <version>0.0.1-SNAPSHOT</version>
        </dependency>
        
        <!-- Spring -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-beans</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aspects</artifactId>
        </dependency>
        <dependency>
            <groupId>redis.clients</groupId>
            <artifactId>jedis</artifactId>
        </dependency>
    </dependencies>
    
</project>

3.3　　　　生成id的方法uuid

    String oid = UUID.randomUUID().toString().replaceAll("-", "");

posted on 2024-04-18 08:01 菜鳥乙閱讀(24) 評論(0) 收藏舉報

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0 課程地址

1 重點關注

1.1 本節內容

2 課程內容

2.1 單體到分層代碼演示

2.2 Spring項目配置文件簡介（SpringMVC都過時了吧，這塊之后用到了再來細看）

3 Coding

3.1 mybaties生成Mapper(注意：數據庫版本一定要對上)

3.2 Spring微服務如何定義版本

3.3 生成id的方法uuid