spring cloud config--client
概述
之前我们简单的搭建了一个单点的config-server服务，实现配置文件的统一管理，本次文章将实现config-client是如何从config-server中获取到统一配置文件信息的
1.创建springcloud--ssmServer服务
此服务是之前的springBoot继承了mybatis和springMvc等框架的完整项目，这里用来当做config-client，模仿真实的环境
父项目pom.xml
<?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>
<!-- 父项目骨架 -->
<groupId>com.pupeiyuan.springcloud</groupId>
<artifactId>spring-Cloud</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>pom</packaging>
<!-- 包含的子项目 -->
<modules>
<module>springcloud-eureka</module>
<module>springcloud-configServer</module>
<module>springcloud-configClient</module>
<module>springcloud-ssmServer</module>
</modules>
<!-- java版本信息 -->
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
</properties>
<!-- springboot以来的父项目 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.2.RELEASE</version>
</parent>
<dependencyManagement>
<dependencies>
<!-- springcloud版本依赖 -->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>Dalston.SR3</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<plugins>
<!-- maven插件 -->
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
此项目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>
<!-- 单元测试 -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<scope>test</scope>
</dependency>
<!-- 支持springWEB web支持: 1、web mvc; 2、restful; 3、jackjson支持; 4、aop ........ -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!-- AOP依赖模块 -->
<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>
<!-- 分页助手 -->
<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 数据库驱动. -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<!-- 连接池 -->
<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相关 -->
<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编译插件 -->
<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>
<!-- 这是spring boot devtool plugin -->
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<!--fork : 如果没有该项配置，肯呢个devtools不会起作用，即应用不会restart -->
<fork>true</fork>
</configuration>
</plugin>
</plugins>
</build>
</project>
创建 bootstrap.properties
config文件中这里要创建bootstrap.properties或者bootstrap.yml，一些关于config的配置需要在这里配置，因为spring cloud默认从这个配置文件中读取config，其他的配置还可以从燕来的配置文件application.properties中来设置
spring.application.name=multiple #这里的名字对应的配置服务中的应用名称{application}
spring.cloud.config.discovery.enabled=true
spring.cloud.config.discovery.service-id=pringcloud-configServer #这里是config--server在eureka中注册的服务
spring.cloud.config.profile=test #这里名字对应环境的标识{profile}
spring.cloud.config.label=master
eureka.client.serviceUrl.defaultZone=http://root:123456@peer1:8000/eureka
eureka.instance.prefer-ip-address=true
MyBatisConfig.java
此配置文件是初始化datasource注册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
//此处的"multiple.datasource.master"需要你在application.properties中配置，详细信息看下面贴出的application.properties文件。
@ConfigurationProperties(prefix = "multiple.datasource.master")
public DataSource dbMaster() {
DruidDataSource druidDataSource = DruidDataSourceBuilder.create().build();
//配置监控统计拦截的filters，去掉后监控界面sql无法统计，'wall'用于防火墙
try {
druidDataSource.setFilters("stat,wall,log4j");
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
// 通过connectProperties属性来打开mergeSql功能；慢SQL记录
druidDataSource.setConnectionProperties("druid.stat.mergeSql=true;druid.stat.slowSqlMillis=5000");
//合并多个DruidDataSource的监控数据
druidDataSource.setUseGlobalDataSourceStat(true);
return druidDataSource;
}
@Bean
@ConfigurationProperties(prefix = "multiple.datasource.slave")
public DataSource dbSlave1() {
DruidDataSource druidDataSource = DruidDataSourceBuilder.create().build();
//配置监控统计拦截的filters，去掉后监控界面sql无法统计，'wall'用于防火墙
try {
druidDataSource.setFilters("stat,wall,log4j");
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
// 通过connectProperties属性来打开mergeSql功能；慢SQL记录
druidDataSource.setConnectionProperties("druid.stat.mergeSql=true;druid.stat.slowSqlMillis=5000");
//合并多个DruidDataSource的监控数据
druidDataSource.setUseGlobalDataSourceStat(true);
return druidDataSource;
}
/**
* 核心动态数据源
*
* @return 数据源实例
*/
@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());
//此处设置为了解决找不到mapper文件的问题
//sqlSessionFactoryBean.setMapperLocations(new PathMatchingResourcePatternResolver().getResources("classpath:mapper/*.xml"));
return sqlSessionFactoryBean.getObject();
}
@Bean
public SqlSessionTemplate sqlSessionTemplate() throws Exception {
return new SqlSessionTemplate(sqlSessionFactory());
}
/**
* 事务管理
*
* @return 事务管理实例
*/
@Bean
public PlatformTransactionManager platformTransactionManager() {
return new DataSourceTransactionManager(dynamicDataSource());
}
}
2.下面我们在启动了config-server的前提下，启动此项目，看是否能获取到数据源信息，并成功装配到spring
这里测试没有问题，说明已经成功的从config-server中获取到了配置信息
划船不用桨、杨帆不等风、一生全靠浪
