nacos study_namespace2.0使用命名空间的配置-马育民老师

上接：[nacos study_namespace1.0注册时指定命名空间](https://www.malaoshi.top/show_1EF5m0yIC7Ln.html "nacos study_namespace1.0注册时指定命名空间")

# 修改工程

修改子模块`study_namespace`

# 修改依赖

修改pom.xml文件

关键依赖：
```
<dependency>
	<groupId>com.alibaba.cloud</groupId>
	<artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
</dependency>
<dependency>
	<groupId>com.alibaba.cloud</groupId>
	<artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
</dependency>
```

全部依赖：
```
<dependencies>
    <dependency>
        <groupId>com.alibaba.cloud</groupId>
        <artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
    </dependency>
    <dependency>
        <groupId>com.alibaba.cloud</groupId>
        <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
    </dependency>
    
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-actuator</artifactId>
    </dependency>
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-devtools</artifactId>
        <scope>runtime</scope>
        <optional>true</optional>
    </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>
</dependencies>
```

# 修改 bootstrap.yml

将nacos作为 **注册** 和  **配置中心** 使用：
```
server:
  port: 9001   # 服务端口
spring:
  application:
    name: study-namespace   # 注册服务名
  cloud:
    nacos:
      discovery:
        server-addr: 106.13.165.100:8848   # nacos地址
        namespace: fed85cb6-f8a1-464e-8965-a60192c85a19   # 命名空间ID

config:
        server-addr: 106.13.165.100:8848   # nacos地址
        file-extension: yml
        namespace: fed85cb6-f8a1-464e-8965-a60192c85a19   # 指定namespace

profiles:
    active: dev   # profile
```

# 添加controller

```
package top.malaoshi.controller;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.cloud.context.config.annotation.RefreshScope;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
@RefreshScope
public class TestCtrl {

@Value("${db.name}")
    private String name;

@Value("${db.pwd}")
    private String pwd;

@GetMapping("/test")
    public String test(){
        return name+"--"+pwd;
    }

}
```

# 添加配置

在`吉林xx大学`命名空间下，添加配置：

[![](https://www.malaoshi.top/upload/pic/nacos/20200625191744.png)](https://www.malaoshi.top/upload/pic/nacos/20200625191744.png)

配置如下：
```
db: 
    name: root
    pwd: 1234
```
**注意：** `:`后面要有一个空格

[![](https://www.malaoshi.top/upload/pic/nacos/20200625191921.png)](https://www.malaoshi.top/upload/pic/nacos/20200625191921.png)

# 测试

启动nacos服务
启动本服务时，先从nacos读取配置，然后再启动

访问 http://localhost:9001/test ，可以看到读取的配置信息

原文出处：http://malaoshi.top/show_1EF5m1XRtWpK.html