文章目錄
【一】架構介紹
-
單一應用架構
當網站流量很小時,只需一個應用,將所有功能都部署在一起,以減少部署節點和成本。
此時,用於簡化增刪改查工作量的 數據訪問框架(ORM) 是關鍵。 -
垂直應用架構
當訪問量逐漸增大,單一應用增加機器帶來的加速度越來越小,將應用拆成互不相干的幾個應用,以提升效率。
此時,用於加速前端頁面開發的 Web框架(MVC) 是關鍵。 -
分佈式服務架構
當垂直應用越來越多,應用之間交互不可避免,將核心業務抽取出來,作爲獨立的服務,逐漸形成穩定的服務中心,使前端應用能更快速的響應多變的市場需求。
此時,用於提高業務複用及整合的 分佈式服務框架(RPC) 是關鍵。
【二】dubbo介紹
- 1、服務容器負責啓動,加載,運行服務提供者。
- 2、服務提供者在啓動時,向註冊中心註冊自己提供的服務。
- 3、服務消費者在啓動時,向註冊中心訂閱自己所需的服務。
- 4、註冊中心返回服務提供者地址列表給消費者,如果有變更,註冊中心將基於長連接推送變更數據給消費者。
- 5、服務消費者,從提供者地址列表中,基於軟負載均衡算法,選一臺提供者進行調用,如果調用失敗,再選另一臺調用。
- 6、服務消費者和提供者,在內存中累計調用次數和調用時間,定時每分鐘發送一次統計數據到監控中心。
Dubbo調用方式
- 異步調用
基於NIO的非阻塞實現並行調用,客戶端不需要啓動多線程即可完成並行調用多個遠程服務,相對多線程開銷較小
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加載Dubbo的配置即可,Dubbo基於Spring的Schema擴展進行加載。如果不想使用Spring配置,而希望通過API的方式進行調用(不推薦
【三】zookeeper介紹
ZooKeeper(後面稱爲zk)是一種用於分佈式應用程序的分佈式開源協調服務。主要是用來解決分佈式應用中經常遇到的一些問題,假如你公司的項目還是處於單機狀態,那可能用不到zk,一旦涉及到分佈式應用,很多問題都可以利用zk解決。
3.1 簡單的數據模型
zk允許各分佈式應用通過一個共享的命名空間相互聯繫,該命名空間類似於一個標準的文件系統:由若干註冊了的數據節點構成(用zk的術語叫znode),這些節點類似於文件和目錄。與專爲存儲而設計的典型文件系統不同,zk數據保存在內存中,這意味着zk可以實現高吞吐量和低延遲數量。
3.2 高可靠
就像zk需要協調的分佈式系統一樣,它本身就是具有冗餘結構,它構建在一系列主機之上,構成zk服務的各服務器之間必須相互知道,它們維護着一個狀態信息的內存映像,以及在持久化存儲中維護着事務日誌和快照。只要大部分服務器正常工作,zk服務就能正常工作。客戶端連接到一臺zk服務器。客戶端維護這個TCP連接,通過這個連接,客戶端可以發送請求、得到應答,得到監視事件以及發送心跳。如果這個連接斷了,客戶端可以連接到另一個zk服務器
- 1.客戶端隨機連接集羣中任何一臺server
- 2.集羣內所有server基於Zab(ZooKeeper Atomic Broadcast)協議進 行通信
- 3.集羣內部根據算法自動選舉出一個leader,負責向follower(其他 server)廣播所有變化消息
- 4.集羣中每個follower都和leader通信
• Follower接收來自leader的所有變化消息,保存在自己內存
• Follower轉發來自客戶端的寫請求給leader
• 客戶端的讀請求會在follower端直接服務,無需轉發給leader
3.3 zk集羣角色
Leader
①Leader服務器是zk集羣工作機制的核心.
②事務請求的唯一調度者和處理者,保證集羣事務請求處理的順序性.
Follower
①Follower服務器是zk集羣狀態的跟隨者.
②處理非事務請求,轉發事務請求給Leader服務器
③參與事務請求的proposal投票
④參與Leader選舉投票
Observer
Observer是一種新型的zk節點,Observer服務器只提供非事務服務.通常用於不影響集羣事務處理能力的前提下提升集羣的非事務的處理能力,Observer有另外一個優勢,因爲它不參與投票,所以他們不屬於zk集羣的關鍵部位,即使他們Failed,或者從集羣中斷開,也不會影響集羣的可用性。
3.4 有序性
zk給每次更新附加一個數字標籤,表明zk中的事務順序,後續操作可以利用這個順序來完成更高層次的抽象功能,例如同步原語操作
3.5 高性能
zk特別適合於以讀爲主要負荷的場合。zk可以運行在數千臺機器上,如果大部分操作爲讀,例如讀寫比例爲10:1,zk的效率會很高
【四】dubbo&zookeeper整合ssm
4.1 創建項目
整個項目採用分模塊開發
- model:模型層
- dao:數據庫操作
- api:對外提供的RPC調用的服務,爲公共組件
- provide:服務提供者
- consumer:服務消費者
4.2 maven依賴
- 根pom.xml文件依賴
<?xml version="1.0" encoding="UTF-8"?>
<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>
<packaging>pom</packaging>
<modules>
<module>dubbo-model</module>
<module>dubbo-consumer</module>
<module>dubbo-provider</module>
<module>dubbo-dao</module>
<module>dubbo-api</module>
</modules>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.7.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.feng</groupId>
<artifactId>dubbo-ssm</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>dubbo-ssm</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
<junit.version>4.11</junit.version>
<spring.version>4.2.6.RELEASE</spring.version>
<mybatis.version>3.4.1</mybatis.version>
<mybatis-spring.version>1.3.1</mybatis-spring.version>
<log4j.version>1.2.17</log4j.version>
<slf4j.version>1.7.12</slf4j.version>
<jstl.version>1.2</jstl.version>
<taglibs.version>1.1.2</taglibs.version>
<c3p0.version>0.9.5.2</c3p0.version>
<mysql.version>5.1.35</mysql.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.16.20</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<!-- 1. 添加spring/springmvc的依賴 start =======================-->
<!-- aop -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- aspects -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aspects</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- beans -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- context -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- core -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- expression -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-expression</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- jdbc -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- orm -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- tx -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- test -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- web -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- webmvc -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- 依賴mybatis -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>${mybatis.version}</version>
</dependency>
<!-- 添加mybatis-spring的整合依賴-->
<!-- https://mvnrepository.com/artifact/org.mybatis/mybatis-spring -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>${mybatis-spring.version}</version>
</dependency>
<!-- 數據庫驅動 -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>${mysql.version}</version>
</dependency>
<!-- 數據連接池 -->
<dependency>
<groupId>com.mchange</groupId>
<artifactId>c3p0</artifactId>
<version>${c3p0.version}</version>
</dependency>
<!-- start..............dubbo.................-->
<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>
<dependency>
<groupId>org.apache.zookeeper</groupId>
<artifactId>zookeeper</artifactId>
<version>3.4.6</version>
</dependency>
<dependency>
<groupId>com.github.sgroschupf</groupId>
<artifactId>zkclient</artifactId>
<version>0.1</version>
</dependency>
<!-- end..............dubbo.................-->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>${junit.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.9.8</version>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.57</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
- api模塊的pom.xml依賴
<?xml version="1.0" encoding="UTF-8"?>
<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">
<parent>
<artifactId>dubbo-ssm</artifactId>
<groupId>com.feng</groupId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>dubbo-api</artifactId>
<dependencies>
<dependency>
<groupId>com.feng</groupId>
<artifactId>dubbo-model</artifactId>
<version>0.0.1-SNAPSHOT</version>
</dependency>
</dependencies>
</project>
- dao模塊的pom.xml依賴
<?xml version="1.0" encoding="UTF-8"?>
<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">
<parent>
<artifactId>dubbo-ssm</artifactId>
<groupId>com.feng</groupId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>dubbo-dao</artifactId>
<dependencies>
<dependency>
<groupId>com.feng</groupId>
<artifactId>dubbo-model</artifactId>
<version>0.0.1-SNAPSHOT</version>
</dependency>
</dependencies>
</project>
- provid模塊pom.xml依賴
<?xml version="1.0" encoding="UTF-8"?>
<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">
<parent>
<artifactId>dubbo-ssm</artifactId>
<groupId>com.feng</groupId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>dubbo-provider</artifactId>
<dependencies>
<dependency>
<groupId>com.feng</groupId>
<artifactId>dubbo-dao</artifactId>
<version>0.0.1-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>com.feng</groupId>
<artifactId>dubbo-api</artifactId>
<version>0.0.1-SNAPSHOT</version>
</dependency>
</dependencies>
</project>
- consumer模塊的pom.xml依賴
<?xml version="1.0" encoding="UTF-8"?>
<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">
<parent>
<artifactId>dubbo-ssm</artifactId>
<groupId>com.feng</groupId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>dubbo-consumer</artifactId>
<packaging>war</packaging>
<name>dubbo-consumer Maven Webapp</name>
<!-- FIXME change it to the project's website -->
<url>http://www.example.com</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.7</maven.compiler.source>
<maven.compiler.target>1.7</maven.compiler.target>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.feng</groupId>
<artifactId>dubbo-api</artifactId>
<version>0.0.1-SNAPSHOT</version>
</dependency>
</dependencies>
<build>
<finalName>dubbo-consumer</finalName>
<pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
<plugins>
<plugin>
<artifactId>maven-clean-plugin</artifactId>
<version>3.1.0</version>
</plugin>
<!-- see http://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_war_packaging -->
<plugin>
<artifactId>maven-resources-plugin</artifactId>
<version>3.0.2</version>
</plugin>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.0</version>
</plugin>
<plugin>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.22.1</version>
</plugin>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>3.2.2</version>
</plugin>
<plugin>
<artifactId>maven-install-plugin</artifactId>
<version>2.5.2</version>
</plugin>
<plugin>
<artifactId>maven-deploy-plugin</artifactId>
<version>2.8.2</version>
</plugin>
</plugins>
</pluginManagement>
</build>
</project>
4.3 model
@Data
@NoArgsConstructor
@AllArgsConstructor
@Accessors(chain=true)
public class User implements Serializable {
private Integer id;
private String username;
private String password;
}
4.4 dao
- UserDao .java
import com.feng.model.User;
import org.apache.ibatis.annotations.Param;
/**
* @author fengwen
*/
public interface UserDao {
/**
* 用戶登錄
* @param username
* @param password
* @return
*/
User login(@Param(value = "username") String username, @Param(value = "password") String password);
}
- UserDao .xml
<?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.feng.dao.UserDao" >
<select id="login" resultType="com.feng.model.User">
SELECT * FROM user WHERE username=#{username} and password=#{password}
</select>
</mapper>
4.5 api
- UserService.java
package com.feng.service;
import com.feng.model.User;
/**
* @Description
* @Author fengwen
* @Date 2019/8/17 9:33
* @Version V1.0
*/
public interface UserService {
/**
* 登錄
* @param username
* @param password
* @return
*/
User login(String username,String password);
}
4.3 服務提供者
- UserServiceImpl.java
package com.feng.service.imp;
import com.feng.dao.UserDao;
import com.feng.model.User;
import com.feng.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
/**
* @Description
* @Author fengwen
* @Date 2019/8/17 9:31
* @Version V1.0
*/
@Service
public class UserServiceImpl implements UserService {
@Autowired
private UserDao userDao;
/**
* 登錄
* @param username
* @param password
* @return
*/
@Override
public User login(String username, String password) {
User user = userDao.login(username, password);
return user;
}
}
- 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">
<!-- 配置整合mybatis過程 -->
<!-- 1.配置數據庫相關參數properties的屬性:${url} -->
<context:property-placeholder location="classpath:jdbc.properties"/>
<!-- 2.數據庫連接池 -->
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<!-- 配置連接池屬性 -->
<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連接池的私有屬性 -->
<property name="maxPoolSize" value="30" />
<property name="minPoolSize" value="10" />
<!-- 關閉連接後不自動commit -->
<property name="autoCommitOnClose" value="false" />
<!-- 獲取連接超時時間 -->
<property name="checkoutTimeout" value="10000" />
<!-- 當獲取連接失敗重試次數 -->
<property name="acquireRetryAttempts" value="2" />
</bean>
<!-- 3.配置SqlSessionFactory對象 -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<!-- 注入數據庫連接池 -->
<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" />
<!-- 掃描entity包 使用別名 -->
<property name="typeAliasesPackage" value="com.feng.model" />
<!-- 掃描sql配置文件:mapper需要的xml文件 -->
<property name="mapperLocations" value="classpath:mapper/*.xml" />
</bean>
<!-- 4.配置掃描Dao接口包,動態實現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" />
<!-- 給出需要掃描Dao接口包 -->
<property name="basePackage" value="com.feng.dao" />
</bean>
</beans>
- 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">
<import resource="spring-dao.xml"/>
<import resource="spring-dubbo.xml"/>
<!-- 掃描service包下所有使用註解的類型 -->
<context:component-scan base-package="com.feng.service" />
<!-- 配置事務管理器 -->
<bean id="transactionManager"
class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<!-- 注入數據庫連接池 -->
<property name="dataSource" ref="dataSource" />
</bean>
<!-- 配置基於註解的聲明式事務 -->
<tx:annotation-driven transaction-manager="transactionManager" />
</beans>
- spring-dubbo.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-4.3.xsd
http://code.alibabatech.com/schema/dubbo
http://code.alibabatech.com/schema/dubbo/dubbo.xsd">
<!--配置dubbo的應用名稱-->
<dubbo:application name="edu-eb-userservice"/>
<!--註冊中心-->
<dubbo:registry protocol="zookeeper" address="127.0.0.1:2181"></dubbo:registry>
<!-- 用dubbo協議在20880端口暴露服務 -->
<dubbo:protocol name="dubbo" port="20880" />
<!-- 聲明需要暴露的服務接口 -->
<dubbo:service interface="com.feng.service.UserService" ref="userService" />
<bean id="userService" class="com.feng.service.imp.UserServiceImpl"/>
</beans>
- jdbc.properties
jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/dubbo?useUnicode=true&characterEncoding=utf8
jdbc.username=root
jdbc.password=123456
4.4 服務消費者
- UserController .java
package com.feng.controller;
import com.feng.model.User;
import com.feng.service.UserService;
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;
/**
* @Description
* @Author fengwen
* @Date 2019/8/17 9:43
* @Version V1.0
*/
@Controller
@RequestMapping(value = "user")
public class UserController {
@Autowired
private UserService userService;
@RequestMapping(value = "login",method = RequestMethod.GET)
@ResponseBody
public User login(String username,String password){
User user = userService.login(username, password);
if(user==null){
return null;
}
return user;
}
}
- applicationContext.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:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-4.3.xsd
http://code.alibabatech.com/schema/dubbo
http://code.alibabatech.com/schema/dubbo/dubbo.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
<context:component-scan base-package="com.feng.controller"></context:component-scan>
<!-- 消費方應用名,用於計算依賴關係,不是匹配條件,不要與提供方一樣 -->
<dubbo:application name="edu-eb-web" />
<!-- 使用zookeeper註冊中心暴露服務地址 -->
<!-- 註冊中心地址 -->
<dubbo:registry protocol="zookeeper" address="127.0.0.1:2181" />
<!-- 用戶服務接口 -->
<dubbo:reference interface="com.feng.service.UserService" id="userService" check="false" />
</beans>
- 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:mvc="http://www.springframework.org/schema/mvc"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-4.3.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-4.3.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-4.3.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-4.3.xsd">
<!-- 1.註解掃描位置-->
<context:component-scan base-package="com.feng.controller" />
<mvc:annotation-driven />
<!-- 2.靜態資源默認servlet配置
(1)加入對靜態資源的處理:js,gif,png
(2)允許使用"/"做整體映射
-->
<mvc:default-servlet-handler/>
<!-- 3.配置jsp 顯示ViewResolver -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="viewClass" value="org.springframework.web.servlet.view.JstlView" />
<property name="prefix" value="/WEB-INF/jsp/" />
<property name="suffix" value=".jsp" />
</bean>
</beans>