Dubbox+SSM分散式框架搭建與測試

阿新 • • 發佈：2019-02-18

Zookeeper的安裝這裡就不寫了，可以百度一下（文末會附上工程原始碼）

一工程結構

一工程結構

工程說明：

demo-parent 為聚合工程

demo-dao 為資料庫訪問層

demo-pojo 為實體類

demo-xxx-interface 為xxx服務層的介面

demo-xxx-service 為xxx服務層的實現

demo-xxx-web 為web工程

後面可以根據自己的業務需求新增一些服務層和web層，比如有訂單模組，那就可以新增

demo-order-interface,demo-order-service,demo-order-web 三個模組

二框架搭建

2.1 父工程

建立 Maven 工程 demo-parent ，groupId 為 cn.demo ,artifactId 為demo-parent , 在 pom.xml 引入下面的依賴，下面的模組都繼承自父工程

 <!-- 集中定義依賴版本號 -->
    <properties>
        <junit.version>4.12</junit.version>
        <spring.version>4.2.4.RELEASE</spring.version>
        <pagehelper.version>4.0.0</pagehelper.version>
        <servlet-api.version>2.5</servlet-api.version>
        <dubbo.version>2.8.4</dubbo.version>
        <zookeeper.version>3.4.7</zookeeper.version>
        <zkclient.version>0.1</zkclient.version>
        <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>5.1.32</mysql.version>
        <druid.version>1.0.9</druid.version>


    </properties>

    <dependencyManagement>
        <dependencies>

            <!-- Spring -->
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-context</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>${spring.version}</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-jms</artifactId>
                <version>${spring.version}</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-context-support</artifactId>
                <version>${spring.version}</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-test</artifactId>
                <version>${spring.version}</version>
            </dependency>
            <!-- dubbo相關 -->
            <dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>dubbo</artifactId>
                <version>${dubbo.version}</version>
            </dependency>
            <!--zookeeper-->
            <dependency>
                <groupId>org.apache.zookeeper</groupId>
                <artifactId>zookeeper</artifactId>
                <version>${zookeeper.version}</version>
            </dependency>
            <dependency>
                <groupId>com.github.sgroschupf</groupId>
                <artifactId>zkclient</artifactId>
                <version>${zkclient.version}</version>
            </dependency>
            <dependency>
                <groupId>junit</groupId>
                <artifactId>junit</artifactId>
                <version>4.9</version>
            </dependency>
            <dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>fastjson</artifactId>
                <version>1.2.28</version>
            </dependency>
            <dependency>
                <groupId>javassist</groupId>
                <artifactId>javassist</artifactId>
                <version>3.11.0.GA</version>
            </dependency>
            <dependency>
                <groupId>commons-codec</groupId>
                <artifactId>commons-codec</artifactId>
                <version>1.10</version>
            </dependency>
            <dependency>
                <groupId>javax.servlet</groupId>
                <artifactId>servlet-api</artifactId>
                <version>2.5</version>
                <scope>provided</scope>
            </dependency>
            <dependency>
                <groupId>com.github.pagehelper</groupId>
                <artifactId>pagehelper</artifactId>
                <version>${pagehelper.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>${mybatis.paginator.version}</version>
            </dependency>
            <!-- MySql -->
            <dependency>
                <groupId>mysql</groupId>
                <artifactId>mysql-connector-java</artifactId>
                <version>${mysql.version}</version>
            </dependency>
            <!-- 連線池 -->
            <dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>druid</artifactId>
                <version>${druid.version}</version>
            </dependency>


        </dependencies>

    </dependencyManagement>



    <build>

        <plugins>
            <!-- java編譯外掛 -->
            <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>

    </build>

2.2 實體類模組

在demo-parent模組下建立實體類模組demo-pojo,並在java資料夾下建立包，包名為com.demo.pojo，包下的TbUser和TbUserExample會在2.7節用逆向工程講解如何生成

2.3 資料訪問模組

這裡有幾個檔案要配置下1.pom.xml 2 db.properties 3 SqlMapConfig.xml 4 applicationContext-dao.xml

1 pom.xml


    <dependencies>

        <dependency>
            <groupId>com.github.pagehelper</groupId>
            <artifactId>pagehelper</artifactId>
        </dependency>
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
        </dependency>
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
        </dependency>
        <dependency>
            <groupId>com.github.miemiedev</groupId>
            <artifactId>mybatis-paginator</artifactId>
        </dependency>
        <!-- MySql -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>
        <!-- 連線池 -->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
        </dependency>
        <!--引入實體類-->
        <dependency>
            <groupId>cn.demo</groupId>
            <artifactId>demo-pojo</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>
    </dependencies>

2 db.properties

這裡配置了一些資料庫連線地址，埠號，以及指定的資料庫，還有資料連線的賬號和密碼

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/mybatis?characterEncoding=utf-8
jdbc.username=root
jdbc.password=123

3 SqlMapConfig.xml

這裡只配置了一個分頁助手，可以根據自己的需求，配置一些其他的資訊

<?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>
	<plugins>
		<!-- com.github.pagehelper 為 PageHelper 類所在包名 -->
		<plugin interceptor="com.github.pagehelper.PageHelper">
			<!-- 設定資料庫型別 Oracle,Mysql,MariaDB,SQLite,Hsqldb,PostgreSQL 六種資料庫-->
			<property name="dialect" value="mysql"/>
		</plugin>
	</plugins>
</configuration>

4 applicationContext-dao.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.2.xsd
	http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
 ">

    <!-- 資料庫連線池 -->
    <!-- 載入配置檔案 -->
    <context:property-placeholder location="classpath*:properties/*.properties"/>
    <!-- 資料庫連線池 -->
    <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource"
          destroy-method="close">
        <property name="url" value="${jdbc.url}"/><!--資料庫連線地址，埠號，資料庫名-->
        <property name="username" value="${jdbc.username}"/><!--資料庫使用者名稱-->
        <property name="password" value="${jdbc.password}"/><!--資料庫密碼-->
        <property name="driverClassName" value="${jdbc.driver}"/><!--資料庫驅動-->
        <property name="maxActive" value="10"/>
        <property name="minIdle" value="5"/>
    </bean>

    <!-- 讓spring管理sqlsessionfactory 使用mybatis和spring整合包中的 -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <!-- 資料庫連線池 -->
        <property name="dataSource" ref="dataSource"/>
        <!-- 載入mybatis的全域性配置檔案，可以自定義配置其他的檔案 -->
        <property name="configLocation" value="classpath:mybatis/SqlMapConfig.xml"/>
    </bean>
    <!--mapper檔案掃描的配置-->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.demo.mapper"/>
    </bean>
</beans>

2.4 介面模組

pom.xml檔案引入下面依賴

<dependencies>
        <dependency>
            <groupId>cn.demo</groupId>
            <artifactId>demo-pojo</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>
    </dependencies>

2.5 服務模組

需要修改的檔案1 pom.xml 2 web.xml 3 applicationContext-service.xml 4 applicationContext-tx.xml

1 pom.xml引入依賴

<packaging>war</packaging>

    <dependencies>

        <!-- 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>org.springframework</groupId>
            <artifactId>spring-jms</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context-support</artifactId>
        </dependency>

        <!-- dubbo相關 -->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>dubbo</artifactId>
        </dependency>
        <!--動態類庫,與jdk自帶的反射功能類似，但比反射功能更強大-->
        <dependency>
            <groupId>javassist</groupId>
            <artifactId>javassist</artifactId>
        </dependency>
        <!--zookepper-->
        <dependency>
            <groupId>org.apache.zookeeper</groupId>
            <artifactId>zookeeper</artifactId>
        </dependency>
        <dependency>
            <groupId>com.github.sgroschupf</groupId>
            <artifactId>zkclient</artifactId>
        </dependency>
        <!--user介面-->
        <dependency>
            <groupId>cn.demo</groupId>
            <artifactId>demo-user-interface</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>
        <!--dao層-->
        <dependency>
            <groupId>cn.demo</groupId>
            <artifactId>demo-dao</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>

    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.tomcat.maven</groupId>
                <artifactId>tomcat7-maven-plugin</artifactId>
                <version>2.2</version>
                <configuration>
                    <!-- 指定埠 -->
                    <port>9001</port>
                    <!-- 請求路徑 -->
                    <path>/</path>
                </configuration>
            </plugin>
        </plugins>
    </build>

2 web.xml

<?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_2_5.xsd"
	version="2.5">
	<!-- 載入spring容器 -->
	<context-param>
		<param-name>contextConfigLocation</param-name>
		<!--這裡的*表示：會將本地的以及依賴進來dao層配置檔案一起載入到spring容器-->
		<param-value>classpath*:spring/applicationContext*.xml</param-value>
	</context-param>
	<listener>
		<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
	</listener>
</web-app>

3 applicationContext-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:dubbo="http://code.alibabatech.com/schema/dubbo" 
       xsi:schemaLocation="http://www.springframework.org/schema/beans 
       http://www.springframework.org/schema/beans/spring-beans.xsd
       http://code.alibabatech.com/schema/dubbo 
       http://code.alibabatech.com/schema/dubbo/dubbo.xsd">
    <!--指定服務的埠號-->
    <dubbo:protocol name="dubbo" port="20881"></dubbo:protocol>
    <!--註冊的名稱-->
    <dubbo:application name="demo-user-service"/>
    <!--zookepper的註冊地址和埠-->
    <dubbo:registry address="zookeeper://192.168.25.128:2181"/>
    <!--配置註解掃描包-->
    <dubbo:annotation package="com.demo.user.service.impl"/>
    
</beans>

4 applicationContext-tx.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: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/tx 
		http://www.springframework.org/schema/tx/spring-tx.xsd
       ">
    <!-- 事務管理器  -->  
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <!--注入資料來源-->
        <property name="dataSource" ref="dataSource" />  
    </bean>
    <!-- 開啟事務控制的註解支援，開啟這個，只需要在類上加上註解，下面每個方法就會收到事務管理 -->
    <tx:annotation-driven transaction-manager="transactionManager"/>
</beans>

2.6 控制層模組

此步驟需要修改的檔案 1 pom.xml 2 web.xml 3 springmvc.xml

1 pom.xml

<packaging>war</packaging>
    <dependencies>
        <!-- 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>org.springframework</groupId>
            <artifactId>spring-jms</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context-support</artifactId>
        </dependency>
        <dependency>
            <groupId>cn.demo</groupId>
            <artifactId>demo-user-interface</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>
        <!-- dubbo相關 -->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>dubbo</artifactId>
        </dependency>
        <!--動態類庫,與jdk自帶的反射功能類似，但比反射功能更強大-->
        <dependency>
            <groupId>javassist</groupId>
            <artifactId>javassist</artifactId>
        </dependency>
        <!--zookeeper-->
        <dependency>
            <groupId>org.apache.zookeeper</groupId>
            <artifactId>zookeeper</artifactId>
        </dependency>
        <dependency>
            <groupId>com.github.sgroschupf</groupId>
            <artifactId>zkclient</artifactId>
        </dependency>
        <!--fastjson-->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
        </dependency>
    </dependencies>


    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.tomcat.maven</groupId>
                <artifactId>tomcat7-maven-plugin</artifactId>
                <version>2.2</version>
                <configuration>
                    <!-- 指定埠 -->
                    <port>9101</port>
                    <!-- 請求路徑 -->
                    <path>/</path>
                </configuration>
            </plugin>
        </plugins>
    </build>

2 web.xml

<?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_2_5.xsd"
	version="2.5">	
   <!-- 解決post亂碼 -->
	<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>
  	<!-- 指定載入的配置檔案 ，通過引數contextConfigLocation載入-->
  	<init-param>
  		<param-name>contextConfigLocation</param-name>
  		<param-value>classpath:spring/springmvc.xml</param-value>
  	</init-param>
  </servlet>
  
  <servlet-mapping>
  	<servlet-name>springmvc</servlet-name>
  	<url-pattern>*.do</url-pattern>
  </servlet-mapping>
	
</web-app>

3 springmvc.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:dubbo="http://code.alibabatech.com/schema/dubbo" 
       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/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd
        http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd
       ">

    <mvc:annotation-driven>
        <mvc:message-converters register-defaults="true">
            <!--配置訊息轉換器-->
            <bean class="com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter">
                <property name="supportedMediaTypes" value="application/json"/>
                <property name="features">
                    <array>
                        <value>WriteMapNullValue</value>
                        <value>WriteDateUseDateFormat</value>
                    </array>
                </property>
            </bean>
        </mvc:message-converters>
    </mvc:annotation-driven>

    <!-- 引用dubbo 服務 -->
    <dubbo:application name="demo-user-web"/>
    <!--zookeeper的註冊地址和埠號-->
    <dubbo:registry address="zookeeper://192.168.25.128:2181"/>
    <!--註解掃描-->
    <dubbo:annotation package="com.demo.user.controller"/>
</beans>

2.7 逆向工程

開啟逆向工程，修改generatorConfig.xml配置檔案，修改下圖中，標紅色框框的資訊（逆向工程最後會附上下載地址）

執行GeneratorSqlmap下的main函式，會的到下圖

將實體類拷貝到工程的pojo下，將mapper介面和xml檔案拷貝到dao層下，到這裡環境就配置好了，後面開始寫後端程式碼和前端程式碼了，注意點：實體類都要實現序列化，因為是遠端呼叫

三測試

3.1 資料庫表


SET FOREIGN_KEY_CHECKS=0;

-- ----------------------------
-- Table structure for tb_user
-- ----------------------------
DROP TABLE IF EXISTS `tb_user`;
CREATE TABLE `tb_user` (
  `id` bigint(20) NOT NULL AUTO_INCREMENT,
  `user_name` varchar(100) DEFAULT NULL COMMENT '使用者名稱',
  `password` varchar(100) DEFAULT NULL COMMENT '密碼',
  `name` varchar(100) DEFAULT NULL COMMENT '姓名',
  `age` int(10) DEFAULT NULL COMMENT '年齡',
  `sex` tinyint(1) DEFAULT NULL COMMENT '性別，1男性，2女性',
  `birthday` date DEFAULT NULL COMMENT '出生日期',
  `created` datetime DEFAULT NULL COMMENT '建立時間',
  `updated` datetime DEFAULT NULL COMMENT '更新時間',
  PRIMARY KEY (`id`),
  UNIQUE KEY `username` (`user_name`)
) ENGINE=InnoDB AUTO_INCREMENT=23 DEFAULT CHARSET=utf8;

-- ----------------------------
-- Records of tb_user
-- ----------------------------
INSERT INTO `tb_user` VALUES ('1', 'zhangsan', '123456', '張三', '30', '1', '1984-08-08', '2014-09-19 16:56:04', '2014-09-21 11:24:59');
INSERT INTO `tb_user` VALUES ('2', 'lisi', '123456', '李四', '21', '2', '1991-01-01', '2014-09-19 16:56:04', '2014-09-19 16:56:04');
INSERT INTO `tb_user` VALUES ('3', 'wangwu', '123456', '王五', '22', '2', '1989-01-01', '2014-09-19 16:56:04', '2014-09-19 16:56:04');
INSERT INTO `tb_user` VALUES ('4', 'zhangwei', '123456', '張偉', '20', '1', '1988-09-01', '2014-09-19 16:56:04', '2014-09-19 16:56:04');
INSERT INTO `tb_user` VALUES ('5', 'lina', '123456', '李娜', '28', '1', '1985-01-01', '2014-09-19 16:56:04', '2014-09-19 16:56:04');
INSERT INTO `tb_user` VALUES ('6', 'lilei', '123456', '李磊', '23', '1', '1988-08-08', '2014-09-20 11:41:15', '2014-09-20 11:41:15');
INSERT INTO `tb_user` VALUES ('8', 'xiaofeng', '123456', '蕭峰', '30', '1', '2018-06-25', '2018-06-25 18:42:25', '2018-06-25 18:42:25');
INSERT INTO `tb_user` VALUES ('12', 'zhendeshuai', '565656', '吳彥祖', '26', '1', '2018-06-26', '2018-06-26 14:55:59', '2018-06-26 15:12:12');
INSERT INTO `tb_user` VALUES ('14', 'jiumozhi', '123456', '鳩摩智', '30', '1', '2018-06-26', '2018-06-26 23:53:15', '2018-06-26 23:53:15');
INSERT INTO `tb_user` VALUES ('21', 'zhangsan1234', '12345', '傑克', '20', '1', '2000-01-01', '2018-07-07 21:50:26', '2018-07-07 21:50:26');
INSERT INTO `tb_user` VALUES ('22', 'zhangsanqwe1', '123455', '張三', '30', '1', '1999-02-25', '2018-07-07 21:51:20', '2018-07-07 21:51:20');

3.2 後端程式碼

後端主要編寫1 UserService(介面層) 2 UserServiceImpl(實現層) 3 UserController層

1 UserService(介面層)

package com.demo.user.service;
import com.demo.pojo.TbUser;
import java.util.List;

public interface UserService {
    /**
     * 查詢所有使用者
     * @return
     */
    public List<TbUser> findUserList();

    /**
     * 根據使用者名稱查詢使用者
     * @param username
     * @return
     */
    public TbUser findUser(String username);

    /**
     * 通過年齡段查詢使用者
     * @param start
     * @param end
     * @return
     */
    public List<TbUser> findUsersByAge(Integer start,Integer end);
}

2 UserServiceImpl(實現層)

這裡實現類上面一定不能忘了加上@Service註解，而且是dubbo下的@Service

package com.demo.user.service.impl;

import com.alibaba.dubbo.config.annotation.Service;
import com.demo.mapper.TbUserMapper;
import com.demo.pojo.TbUser;
import com.demo.pojo.TbUserExample;
import com.demo.user.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;

import java.util.List;

@Service
public class UserServiceImpl implements UserService {

    @Autowired
    private  TbUserMapper userMapper;
    @Override
    public List<TbUser> findUserList() {
        //傳null就是查詢所有
        List<TbUser> userList = userMapper.selectByExample(null);
        return userList;
    }
    @Override
    public TbUser findUser(String username) {
        TbUserExample example = new TbUserExample();
        TbUserExample.Criteria criteria = example.createCriteria();
        criteria.andUserNameEqualTo(username);
        List<TbUser> userList = userMapper.selectByExample(example);
        //根據使用者名稱查詢出來肯定只有一條記錄
        return userList.get(0);
    }
    @Override
    public List<TbUser> findUsersByAge(Integer start, Integer end) {
        TbUserExample example = new TbUserExample();
        TbUserExample.Criteria criteria = example.createCriteria();
        //新增年齡查詢條件
        criteria.andAgeBetween(start,end);
        List<TbUser> userList = userMapper.selectByExample(example);
        return userList;
    }
}

3 UserController層

這裡需要注意：注入UserService時，用dubbox的@Reference註解

package com.demo.user.controller;

import com.alibaba.dubbo.config.annotation.Reference;
import com.demo.pojo.TbUser;
import com.demo.user.service.UserService;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.List;

@RestController
@RequestMapping("/user")
public class UserController {

    @Reference
    private UserService userService;

    @RequestMapping("/findList")
    public List<TbUser> findList() {
      return userService.findUserList();
    }

    @RequestMapping("/findUser")
    public TbUser findUser(String username){
        return userService.findUser(username);
    }

    @RequestMapping("/findUsersByAge")
    public List<TbUser> findUsersByAge(Integer start, Integer end){
        return userService.findUsersByAge(start,end);
    }
}

3.3 前端程式碼

在webapp下新增上面紅色框框的檔案，有1 angular.min.js（前端框架）2 base.js 3 userService.js 4 userController.js 5 user.html

base.js

var app=angular.module("demo",[]);//構建模組

userService.js

app.service("userService", function ($http) {//構建前端服務層

    this.findList = function () {
        return $http.get('user/findList.do');
    }

    this.findUser = function (username) {
        return $http.get('user/findUser.do?username=' + username);
    }

    this.findUsersByAge = function (start, end) {
        return $http.get('user/findUsersByAge.do?start=' + start + '&end=' + end);
    }
})

userController.js

app.controller("userController",function ($scope,userService) {

    //查詢所有使用者
    $scope.findList=function () {
        userService.findList().success(function (response) {
            $scope.list=response;
        })
    }

    //根據使用者名稱查詢使用者資訊
    $scope.findUser=function (username) {
        userService.findUser(username).success(function (response) {
            $scope.entity=response;
        })
    }

    //根據年齡段查詢使用者
    $scope.findUsersByAge=function (start,end) {
        userService.findUsersByAge(start,end).success(function (response) {
            $scope.users=response;
        })
    }
})

user.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>使用者查詢</title>
    <!--引入angularjs-->
    <script src="js/angularjs/angular.min.js"></script>
    <script src="js/base.js"></script>
    <script src="js/service/userService.js"></script>
    <script src="js/controller/userController.js"></script>
</head>

<body ng-app="demo" ng-controller="userController">
<!--查詢所有使用者資訊-->
<input type="button" ng-click="findList()" value="查詢所有使用者資訊">
<table >
    <tr>
        <th>編號</th>
        <th>使用者名稱</th>
        <th>姓名</th>
        <th>年齡</th>
        <th>性別</th>
        <th>出生日期</th>
        <th>建立時間</th>
        <th>更新時間</th>
    </tr>
    <!--遍歷集合-->
    <tr ng-repeat="entity in list">
        <td>{{entity.id}}</td>
        <td>{{entity.userName}}</td>
        <td>{{entity.password}}</td>
        <td>{{entity.age}}</td>
        <td>{{entity.sex}}</td>
        <td>{{entity.birthday}}</td>
        <td>{{entity.created}}</td>
        <td>{{entity.updated}}</td>
    </tr>

</table>
<hr>
<!--根據使用者名稱查詢使用者資訊-->
請輸入使用者名稱：<input ng-model="username">
<input type="button" ng-click="findUser(username)" value="查詢">
<table  >
    <tr>
        <th>編號</th>
        <th>使用者名稱</th>
        <th>姓名</th>
        <th>年齡</th>
        <th>性別</th>
        <th>出生日期</th>
        <th>建立時間</th>
        <th>更新時間</th>
    </tr>
    <tr>
        <td>{{entity.id}}</td>
        <td>{{entity.userName}}</td>
        <td>{{entity.password}}</td>
        <td>{{entity.age}}</td>
        <td>{{entity.sex}}</td>
        <td>{{entity.birthday}}</td>
        <td>{{entity.created}}</td>
        <td>{{entity.updated}}</td>
    </tr>
</table>
<hr>
<!--根據年齡段查詢使用者資訊-->
年齡：從<input ng-model="start">到<input ng-model="end">
<input type="button" ng-click="findUsersByAge(start,end)" value="查詢">
<table >
    <tr>
        <th>編號</th>
        <th>使用者名稱</th>
        <th>姓名</th>
        <th>年齡</th>
        <th>性別</th>
        <th>出生日期</th>
        <th>建立時間</th>
        <th>更新時間</th>
    </tr>
    <!--遍歷集合-->
    <tr ng-repeat="entity in users">
        <td>{{entity.id}}</td>
        <td>{{entity.userName}}</td>
        <td>{{entity.password}}</td>
        <td>{{entity.age}}</td>
        <td>{{entity.sex}}</td>
        <td>{{entity.birthday}}</td>
        <td>{{entity.created}}</td>
        <td>{{entity.updated}}</td>
    </tr>
</table>
</body>
</html>

3.4 結果展示

四常見錯誤

4.1 註冊中心找不到服務

java.lang.IllegalStateException: Failed to check the status of the service
com.demo.user.service.UserService. No provider available for the service
com.demo.user.service.UserService from the url
zookeeper://192.168.25.129:2181/com.alibaba.dubbo.registry.RegistryService

如果出現上面的錯誤的話，檢查一下你的服務層程式碼是否添加了@service 註解，並且該註解的包一定是 com.alibaba.dubbo.config.annotation 包，不是org.springframework.stereotype.Service，這個地方極容易出錯

4.2 無法連線到註冊中心

org.I0Itec.zkclient.exception.ZkTimeoutException: Unable to connect to zookeeper server within
timeout: 5000 org.I0Itec.zkclient.ZkClient.connect(ZkClient.java:876)

如果出現上面這個異常，檢查下註冊地址和埠號有沒有寫錯，以及看下zookeeper是否啟動

五原始碼下載

原始碼：

連結：https://pan.baidu.com/s/1pRMAaQqgr3ezHiK1yUXjow 密碼：fmrr

逆向工程：

連結：https://pan.baidu.com/s/1sudm5xINAHKqVNzI7nwBgA 密碼：ivpx

Dubbox+SSM分散式框架搭建與測試

一工程結構

二框架搭建

2.1 父工程

2.2 實體類模組

2.3 資料訪問模組

2.4 介面模組

2.5 服務模組

2.6 控制層模組

2.7 逆向工程

三測試

3.1 資料庫表

3.2 後端程式碼

3.3 前端程式碼

3.4 結果展示

四常見錯誤

4.1 註冊中心找不到服務

4.2 無法連線到註冊中心

五原始碼下載

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Dubbox+SSM分散式框架搭建與測試

一 工程結構

二 框架搭建

2.1 父工程

2.2 實體類模組

2.3 資料訪問模組

2.4 介面模組

2.5 服務模組

2.6 控制層模組

2.7 逆向工程

三 測試

3.1 資料庫表

3.2 後端程式碼

3.3 前端程式碼

3.4 結果展示

四 常見錯誤

4.1 註冊中心找不到服務

4.2 無法連線到註冊中心

五 原始碼下載

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一工程結構

二框架搭建

三測試

四常見錯誤

五原始碼下載