SpringBoot配置文件与生产环境和开发环境配置

一、SpringBoot生产环境和开发环境配置

1.定义生产环境配置文件为 application-product.yml

[java]server:
port: 8081
spring:
datasource:
driver-class-name: com.mysql.jdbc.Driver
url: jdbc:mysql://127.0.0.1:3306/productDb
username: root
password: 123456 [/java]

2.定义开发环境配置文件为 application-dev.yml

[java]server:
port: 8080
spring:
datasource:
driver-class-name: com.mysql.jdbc.Driver
url: jdbc:mysql://127.0.0.1:3306/devlepmentDb
username: root
password: kf123 [/java]

3.配置文件application.yml中设置当前环境

[java]spring:
profiles:
active: dev[/java]

二、SpringBoot获取配置文件数据有两种方式

首先在配置文件application.yml中准备好数据

[java]test:
username: viktor
password: 123
[/java]

获取方式一:通过@Value注解获取

缺点：需要在每个元素上添加注解

[java]@Controller
@RequestMapping("/config")
public class ConfigeController {
@Value(value="${test.username}")
private String userName;

@Value(value="${test.password}")
private String passWord;

@RequestMapping("")
@ResponseBody
public String config() {
return "config == "+userName+" "+passWord;
}

}[/java]

获取方式二: 通过@ConfigurationProperties注解获取

1.在类上添加注解@ConfigurationProperties(prefix=”test”); prefix=”test”为获取元素前缀,如:test.username

2.类中属性名与配置中元素名相同

3.添加geter,seter方法

4.也是重点,添加@ConfigurationProperties注解依赖

[java]<!– 支持 @ConfigurationProperties 注解 yml配置文件–>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-configuration-processor</artifactId>
<optional>true</optional>
</dependency>[/java]

5.ConfigeControllerNew.java

[java]@Controller
@RequestMapping("/confignew")
@ConfigurationProperties(prefix="test")
public class ConfigeControllerNew {
private String username;
private String password;

@RequestMapping("")
@ResponseBody
public String config() {
return "config == "+username+" "+password;
}

public String getUsername() {
return username;
}

public void setUsername(String username) {
this.username = username;
}

public String getPassword() {
return password;
}

public void setPassword(String password) {
this.password = password;
}

}[/java]

实际应用

1. 配置文件application.yml包含如下信息

[java]user
username: 张三
age: 23
[/java]

2. 定义获取配置文件属性的工具类

[java]
@Component
@ConfigurationProperties(prefix = "user")
public class UserProperties {

private String username;

private Integer age;

public String getUsername() {
return username;
}

public void setUsername(String username) {
this.username= username;
}

public Integer getAge() {
return age;
}

public void setAge(Integer age) {
this.age = age;
}
}[/java]

3. 在Controller类或其它中使用

[java]@RestController
@RequestMapping("/hello")
public class HelloController {

@Autowired
private UserProperties userProperties;

@GetMapping(value = "/proper")
public String say() {
return userProperties.getUsername();
}
}[/java]

转载请注明来源：SpringBoot配置文件与生产环境和开发环境配置

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