【Dubbo三】SSM整合Dubbo+Zookeeper實現服務化
前言
最近在做一個小專案,基於Maven構建,框架使用現在主流的:SpringMVC(4.1)+spring(4.1)+MyBatis(3.4.0),實現基本增刪改查,頁面國際化。資料來源採用阿里開源的Druid,前端採用基於Bootstrap封裝的模板AdminLTE(2.3.6)及Bootstrap的一些外掛。上個週末剛好有時間,將專案進行拆分,整合Dubbo2.5.3+Zookeeper3.4.6,實現服務化。後續逐步將MQ、Reds等進行整合實現服務呼叫非同步解耦、快取機制等。
實現
本文建立兩個工程,分別是:dubbo-service、dubbo-client,採用Maven構建。
- dubbo-service提供服務,提供資料增刪改查服務,無頁面及Controller。
- dubbo_client提供頁面訪問,具體的增刪改查條用dubbo-service遠端服務。
Pom依賴
服務端和客戶端一致。在SSM基礎上加入Dubbo和Zookeeper依賴。
<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.cyh</groupId>
<artifactId>dubbo-service</artifactId>
<packaging>war</packaging>
<version>1.0.0.0</version>
<name>dubbo-service</name>
<url>http://maven.apache.org</url >
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<!-- libs -->
<junit.version>4.11</junit.version>
<jstl.version>1.2</jstl.version>
<javaee-api.version>7.0</javaee-api.version>
<cglib.version>3.2.2</cglib.version>
<aspectjrt.version>1.8.0</aspectjrt.version>
<aspectjweaver.version>1.8.0</aspectjweaver.version>
<spring.version>4.1.7.RELEASE</spring.version>
<mybatis-spring.version>1.3.0</mybatis-spring.version>
<mybatis.version>3.4.0</mybatis.version>
<log4j.version>1.2.17</log4j.version>
<slf4j.version>1.7.21</slf4j.version>
<fileupload.version>1.3.1</fileupload.version>
<mysql.version>5.1.35</mysql.version>
<druid.version>1.0.19</druid.version>
<fastjson.version>1.2.11</fastjson.version>
<gson.version>2.3.1</gson.version>
<!--
<commons-lang.version>2.6</commons-lang.version>
<commons-io.version>2.5</commons-io.version>
<jdom.version>2.0.2</jdom.version>
<activeMQ.version>5.11.4</activeMQ.version>
<javassist.version>3.12.1.GA</javassist.version>
<transaction.version>1.1</transaction.version>
-->
</properties>
<!-- 依賴包集合 -->
<dependencies>
<!-- 1. junit 依賴 begin junit3.0使用程式設計方式執行,junit4.0使用註解方式執行 -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>${junit.version}</version>
</dependency>
<!-- junit 依賴 end -->
<!-- 2. Servlet web相關依賴 begin-->
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-api</artifactId>
<version>${javaee-api.version}</version>
</dependency>
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>${jstl.version}</version>
</dependency>
<!-- Servlet web相關依賴 end-->
<!-- 3. aspectjweaver 依賴 begin -->
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>${aspectjweaver.version}</version>
</dependency>
<!-- aspectjweaver 依賴 end -->
<!-- 4. spring依賴 begin-->
<!-- spring核心依賴-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- spring ioc依賴 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- spring aop依賴 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- spring 擴充套件依賴 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>
<!--spring dao層依賴-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- spring web相關依賴 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- spring test相關依賴 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- spring依賴 end-->
<!-- 5. mybatis依賴 begin-->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>${mybatis.version}</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>${mybatis-spring.version}</version>
</dependency>
<!-- mybatis依賴 end-->
<!-- 6. 資料庫相關依賴 begin-->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>${mysql.version}</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>${druid.version}</version>
</dependency>
<!-- 資料庫相關依賴 end-->
<!-- 7. log日誌依賴 begin-->
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>${log4j.version}</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>${slf4j.version}</version>
</dependency>
<!--log日誌依賴 end-->
<!-- Dubbo 依賴 -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>dubbo</artifactId>
<version>2.5.3</version>
<exclusions>
<exclusion>
<artifactId>spring</artifactId>
<groupId>org.springframework</groupId>
</exclusion>
</exclusions>
</dependency>
<!-- Zookeeper 依賴 -->
<dependency>
<groupId>org.apache.zookeeper</groupId>
<artifactId>zookeeper</artifactId>
<version>3.4.6</version>
<exclusions>
<exclusion>
<artifactId>log4j</artifactId>
<groupId>log4j</groupId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>com.101tec</groupId>
<artifactId>zkclient</artifactId>
<version>0.10</version>
</dependency>
<!-- 10. 其他依賴 begin -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>${fastjson.version}</version>
</dependency>
<!-- fileupload 檔案上傳 -->
<dependency>
<groupId>commons-fileupload</groupId>
<artifactId>commons-fileupload</artifactId>
<version>${fileupload.version}</version>
</dependency>
<!-- POI 相關依賴 -->
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi</artifactId>
<version>3.10-FINAL</version>
</dependency>
<!-- 二維碼依賴 -->
<dependency>
<groupId>com.google.zxing</groupId>
<artifactId>core</artifactId>
<version>3.3.0</version>
</dependency>
<!-- gson依賴 -->
<dependency>
<groupId>com.google.code.gson</groupId>
<artifactId>gson</artifactId>
<version>${gson.version}</version>
</dependency>
<dependency>
<groupId>org.json</groupId>
<artifactId>json</artifactId>
<version>20160212</version>
</dependency>
</dependencies>
</project>
服務端配置
服務介面
/**
* @描述:國家資訊service介面
* @作者:CYH
* @版本:V1.0
* @建立時間::2016-12-14 下午3:43:16
*/
public interface IAreaService{
/**
* 功能描述:獲取所有國家資訊
* @return
*/
public List<Area> getAllArea();
/**
* 功能描述:根據條件獲取國家資訊
* @return
*/
public DatatablesView<Area> getAreaByCondition(QueryCondition query);
/**
* 功能描述:根據ID獲取國家資訊
* @param AreaId
* @return
*/
public Area getAreaById(long areaId);
/**
* 功能描述:新增國家資訊
* @param Area
* @return
*/
public int addArea(Area area);
/**
* 功能描述:修改國家資訊
* @param Area
* @return
*/
public int editArea(Area area);
/**
* @功能描述:刪除國家資訊
* @param areaId
* @return int
*/
public int removeArea(long areaId);
}
實現
/**
* @描述:國家資訊service
* @作者:CYH
* @版本:V1.0
* @建立時間::2016-12-14 下午3:42:45
*/
@Service("areaService")
public class AreaService implements IAreaService{
@Resource
private AreaDao areaDao;
public DatatablesView<Area> getAreaByCondition(QueryCondition query) {
DatatablesView<Area> dataView = new DatatablesView<Area>();
//構建查詢條件
WherePrams where = areaDao.structureConditon(query);
Long count = areaDao.count(where);
List<Area> list = areaDao.list(where);
dataView.setRecordsTotal(count.intValue());
dataView.setData(list);
return dataView;
}
public List<Area> getAllArea(){
return areaDao.list();
}
public Area getAreaById(long areaId){
return areaDao.get(areaId);
}
public int addArea(Area area){
return areaDao.addLocal(area);
}
public int editArea(Area area){
area.setUpdateTime(DateUtil.getNowTime());
WherePrams where = new WherePrams();
where.and("areaId", C.EQ, area.getAreaId());
return areaDao.updateLocal(area,where);
}
public int removeArea(long areaId){
return areaDao.del(areaId);
}
}
Dubbo服務宣告
<?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:p="http://www.springframework.org/schema/p"
xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
http://code.alibabatech.com/schema/dubbo
http://code.alibabatech.com/schema/dubbo/dubbo.xsd">
<!-- 提供方應用資訊,用於計算依賴關係 -->
<dubbo:application name="dubbo_provider" />
<!-- 使用zookeeper註冊中心暴露服務地址 -->
<dubbo:registry address="zookeeper://127.0.0.1:2181" />
<!-- 用dubbo協議在20880埠暴露服務 -->
<dubbo:protocol name="dubbo" port="20880" />
<!-- 宣告需要暴露的服務介面 areaService 使用註解已經宣告-->
<dubbo:service interface="com.cyh.sy.service.IAreaService" ref="areaService" />
<!-- 宣告需要暴露的服務介面 companyService使用註解已經宣告-->
<dubbo:service interface="com.cyh.sy.service.ICompanyService" ref="companyService" />
</beans>
Web.xml配置
<?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" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
version="2.5">
<display-name>zy</display-name>
<!-- 自定義Listener -->
<listener>
<listener-class>com.cyh.sy.common.listener.Listener</listener-class>
</listener>
<!-- 載入Spring容器配置 -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- 設定Spring容器載入配置檔案路徑 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring-config/spring-*.xml</param-value>
</context-param>
<!-- Spring 重新整理Introspector防止記憶體洩露 -->
<listener>
<listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class>
</listener>
<!--配置Springmvc核心控制器-->
<servlet>
<servlet-name>spmvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring-config/spring-mvc.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
<async-supported>true</async-supported>
</servlet>
<servlet-mapping>
<servlet-name>spmvc</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<filter>
<filter-name>encodingFilter</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>encodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<session-config>
<session-timeout>60</session-timeout>
</session-config>
<welcome-file-list>
<welcome-file>/</welcome-file>
</welcome-file-list>
安裝Dubbo-admin
需要將Zookeeper註冊中心先啟動。
這裡下載Dubbo-admin2.5.3.war,將war複製到Tomcat/webapp/ROOT/目錄下,啟動Tomcat
http://127.0.0.1:8803/dubbo-admin/ 使用者名稱:root 密碼:root
我這裡安裝了4個Tomcat分別是8800,8801,8802,8803,dubbo部署在第四個Tomcat中。
由於服務端和客戶端都沒有啟用,所有服務、提供者、消費者均為0.
啟動Service端
將Service部署在Tomcat1中,啟動Tomcat1,重新整理Dubbo-admin頁面,檢視已經有兩個服務提供者。
一個應用,兩個服務提供者
具體服務
點選服務治理–服務,檢視具體服務
客戶端配置
介面宣告
同樣需要將服務介面在客戶端宣告。
dubbo服務宣告
<?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:p="http://www.springframework.org/schema/p"
xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
http://code.alibabatech.com/schema/dubbo
http://code.alibabatech.com/schema/dubbo/dubbo.xsd"
>
<!-- 提供方應用資訊,用於計算依賴關係 -->
<dubbo:application name="dubbo_consumer" />
<!-- 使用zookeeper註冊中心暴露服務地址 -->
<dubbo:registry address="zookeeper://127.0.0.1:2181" />
<!-- 用dubbo協議在20880埠暴露服務 -->
<dubbo:protocol name="dubbo" port="20880" />
<!-- 宣告需要暴露的服務介面 -->
<dubbo:reference interface="com.cyh.sy.service.IAreaService" id="areaService" check="false"/>
<!-- 宣告需要暴露的服務介面 -->
<dubbo:reference interface="com.cyh.sy.service.ICompanyService" id="companyService" check="false"/>
</beans>
實體類宣告
說明:服務端和客戶端中需要互動的實體類必須實現Serializable介面
/**
* @描述:國家資訊實體
* @作者:CYH
* @版本:V1.0
* @建立時間::2016-12-14 下午3:41:31
*/
@SuppressWarnings("serial")
public class Area implements Serializable{
private Long areaId; //國家ID
private String areaIdStr;
private String areaNameCn=""; //國家中文名稱
private String areaNameEn; //國際英文名稱
private String createTime; //建立時間
private String updateTime; //修改時間
public Area() {
super();
}
public Area(String areaNameCn, String areaNameEn) {
this.areaNameCn = areaNameCn;
this.areaNameEn = areaNameEn;
}
public Long getAreaId() {
return areaId;
}
public void setAreaId(Long areaId) {
this.areaIdStr = areaId.toString();
this.areaId = areaId;
}
public String getAreaIdStr() {
return areaIdStr;
}
public void setAreaIdStr(String areaIdStr) {
this.areaIdStr = areaIdStr;
}
public String getAreaNameCn() {
return areaNameCn;
}
public void setAreaNameCn(String areaNameCn) {
this.areaNameCn = areaNameCn;
}
public String getAreaNameEn() {
return areaNameEn;
}
public void setAreaNameEn(String areaNameEn) {
this.areaNameEn = areaNameEn;
}
public String getCreateTime() {
return createTime;
}
public void setCreateTime(String createTime) {
this.createTime = createTime;
}
public String getUpdateTime() {
return updateTime;
}
public void setUpdateTime(String updateTime) {
this.updateTime = updateTime;
}
@Override
public String toString() {
return "Area [areaId=" + areaId + ", areaIdStr=" + areaIdStr
+ ", areaNameCn=" + areaNameCn + ", areaNameEn=" + areaNameEn
+ ", createTime=" + createTime + ", updateTime=" + updateTime
+ "]";
}
}
客戶端部署啟用
將client部署在Tomcat2中,啟動Tomcat2,重新整理Dubbo-admin頁面,已經多了兩個服務消費者。
效果
總結
Dubbo採用全Spring配置方式,透明化接入應用,對應用沒有任何API侵入,只需用Spring載入Dubbo的配置即可,Dubbo基於Spring的Schema擴充套件進行載入。
主要核心部件:
• Remoting: 網路通訊框架,實現了 sync-over-async 和 request-response 訊息機制.
• RPC: 一個遠端過程呼叫的抽象,支援負載均衡、容災和叢集功能
• Registry: 服務目錄框架用於服務的註冊和服務事件釋出和訂閱
原始碼地址:下載