spring cloud config--client
阿新 • • 發佈：2018-12-15
概述
之前我們簡單的搭建了一個單點的config-server服務，實現配置檔案的統一管理，本次文章將實現config-client是如何從config-server中獲取到統一配置檔案資訊的
1.建立springcloud--ssmServer服務
此服務是之前的springBoot繼承了mybatis和springMvc等框架的完整專案，這裡用來當做config-client，模模擬實的環境
父專案pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
此專案pom.xml
<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.pupeiyuan.springcloud</groupId>
<artifactId>spring-Cloud</artifactId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<artifactId>springcloud-ssmServer</artifactId>
<dependencies>
<!-- 單元測試 -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<scope>test</scope>
</dependency>
<!-- 支援springWEB web支援: 1、web mvc; 2、restful; 3、jackjson支援; 4、aop ........ -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!-- AOP依賴模組 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-aop</artifactId>
</dependency>
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjrt</artifactId>
<version>1.8.7</version>
</dependency>
<!-- jdbc -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
<scope>provided</scope>
</dependency>
<!-- Mybatis -->
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>1.3.1</version>
</dependency>
<!-- 通用Mapper -->
<dependency>
<groupId>tk.mybatis</groupId>
<artifactId>mapper-spring-boot-starter</artifactId>
<version>RELEASE</version>
</dependency>
<!-- 分頁助手 -->
<dependency>
<groupId>com.github.pagehelper</groupId>
<artifactId>pagehelper-spring-boot-starter</artifactId>
<version>1.1.0</version>
</dependency>
<dependency>
<groupId>com.github.jsqlparser</groupId>
<artifactId>jsqlparser</artifactId>
<version>0.9.1</version>
</dependency>
<!-- mysql 資料庫驅動. -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<!-- 連線池 -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid-spring-boot-starter</artifactId>
<version>1.1.9</version>
</dependency>
<!-- jstl -->
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<dependency>
<groupId>taglibs</groupId>
<artifactId>standard</artifactId>
<version>1.1.2</version>
</dependency>
<!-- JSP相關 -->
<dependency>
<groupId>com.github.jsqlparser</groupId>
<artifactId>jsqlparser</artifactId>
<version>0.9.1</version>
</dependency>
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-jasper</artifactId>
<scope>provided</scope>
</dependency>
<!-- httpclient -->
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpclient</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<optional>true</optional>
<scope>true</scope>
</dependency>
<!-- spring cloud -->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-config</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-eureka</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<!-- java編譯外掛 -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.7</source>
<target>1.7</target>
<encoding>UTF-8</encoding>
</configuration>
</plugin>
<!-- 這是spring boot devtool plugin -->
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<!--fork : 如果沒有該項配置，肯呢個devtools不會起作用，即應用不會restart -->
<fork>true</fork>
</configuration>
</plugin>
</plugins>
</build>
</project>
建立 bootstrap.properties
config檔案中這裡要建立bootstrap.properties或者bootstrap.yml，一些關於config的配置需要在這裡配置，因為spring cloud預設從這個配置檔案中讀取config，其他的配置還可以從燕來的配置檔案application.properties中來設定
spring.application.name=multiple #這裡的名字對應的配置服務中的應用名稱{application}
spring.cloud.config.discovery.enabled=true
spring.cloud.config.discovery.service-id=pringcloud-configServer #這裡是config--server在eureka中註冊的服務
spring.cloud.config.profile=test #這裡名字對應環境的標識{profile}
spring.cloud.config.label=master
eureka.client.serviceUrl.defaultZone=http://root:[email protected]:8000/eureka
eureka.instance.prefer-ip-address=true
MyBatisConfig.java
此配置檔案是初始化datasource註冊bean的
package com.pupeiyuan.config;
import java.sql.SQLException;
import java.util.HashMap;
import java.util.Map;
import java.util.Properties;
import javax.sql.DataSource;
import org.apache.ibatis.session.SqlSessionFactory;
import org.mybatis.spring.SqlSessionFactoryBean;
import org.mybatis.spring.SqlSessionTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.annotation.Order;
import org.springframework.core.io.Resource;
import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
import org.springframework.core.io.support.ResourcePatternResolver;
import org.springframework.jdbc.datasource.DataSourceTransactionManager;
import org.springframework.transaction.PlatformTransactionManager;
import com.alibaba.druid.pool.DruidDataSource;
import com.alibaba.druid.spring.boot.autoconfigure.DruidDataSourceBuilder;
import com.github.pagehelper.PageHelper;
import com.pupeiyuan.core.DataSourceKey;
import com.pupeiyuan.core.DynamicRoutingDataSource;
import tk.mybatis.spring.annotation.MapperScan;
import tk.mybatis.spring.mapper.MapperScannerConfigurer;
@Configuration
@MapperScan("com.pupeiyuan.mapper")
public class MyBatisConfig {
@Bean
//此處的"multiple.datasource.master"需要你在application.properties中配置，詳細資訊看下面貼出的application.properties檔案。
@ConfigurationProperties(prefix = "multiple.datasource.master")
public DataSource dbMaster() {
DruidDataSource druidDataSource = DruidDataSourceBuilder.create().build();
//配置監控統計攔截的filters，去掉後監控介面sql無法統計，'wall'用於防火牆
try {
druidDataSource.setFilters("stat,wall,log4j");
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
// 通過connectProperties屬性來開啟mergeSql功能；慢SQL記錄
druidDataSource.setConnectionProperties("druid.stat.mergeSql=true;druid.stat.slowSqlMillis=5000");
//合併多個DruidDataSource的監控資料
druidDataSource.setUseGlobalDataSourceStat(true);
return druidDataSource;
}
@Bean
@ConfigurationProperties(prefix = "multiple.datasource.slave")
public DataSource dbSlave1() {
DruidDataSource druidDataSource = DruidDataSourceBuilder.create().build();
//配置監控統計攔截的filters，去掉後監控介面sql無法統計，'wall'用於防火牆
try {
druidDataSource.setFilters("stat,wall,log4j");
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
// 通過connectProperties屬性來開啟mergeSql功能；慢SQL記錄
druidDataSource.setConnectionProperties("druid.stat.mergeSql=true;druid.stat.slowSqlMillis=5000");
//合併多個DruidDataSource的監控資料
druidDataSource.setUseGlobalDataSourceStat(true);
return druidDataSource;
}
/**
* 核心動態資料來源
*
* @return 資料來源例項
*/
@Bean
public DataSource dynamicDataSource() {
DynamicRoutingDataSource dataSource = new DynamicRoutingDataSource();
dataSource.setDefaultTargetDataSource(dbMaster());
Map<Object, Object> dataSourceMap = new HashMap<>(4);
dataSourceMap.put(DataSourceKey.DB_MASTER, dbMaster());
dataSourceMap.put(DataSourceKey.DB_SLAVE1, dbSlave1());
dataSource.setTargetDataSources(dataSourceMap);
return dataSource;
}
@Bean
public SqlSessionFactory sqlSessionFactory() throws Exception {
SqlSessionFactoryBean sqlSessionFactoryBean = new SqlSessionFactoryBean();
sqlSessionFactoryBean.setDataSource(dynamicDataSource());
//此處設定為了解決找不到mapper檔案的問題
//sqlSessionFactoryBean.setMapperLocations(new PathMatchingResourcePatternResolver().getResources("classpath:mapper/*.xml"));
return sqlSessionFactoryBean.getObject();
}
@Bean
public SqlSessionTemplate sqlSessionTemplate() throws Exception {
return new SqlSessionTemplate(sqlSessionFactory());
}
/**
* 事務管理
*
* @return 事務管理例項
*/
@Bean
public PlatformTransactionManager platformTransactionManager() {
return new DataSourceTransactionManager(dynamicDataSource());
}
}
2.下面我們在啟動了config-server的前提下，啟動此專案，看是否能獲取到資料來源資訊，併成功裝配到spring
這裡測試沒有問題，說明已經成功的從config-server中獲取到了配置資訊