@ConfigurationProperties(pref="")加载局部配置文件

提示：扫一扫查出行
【扫一扫了解最新限行尾号】
复制提示

刚开始@ConfigurationProperties（文件名）直接在参数里加文件名，其实是配置前缀pref="前缀"。加载局部配置文件是@PropertySource(value = {"classpath:abc.properties"})文件是properties类型。如果是yml类型，无法赋值显示null。

@Component
@PropertySource(value = {"classpath:abc.properties"})
@ConfigurationProperties(prefix = "emp")
public class Emp {String name ;

加载xml配置文件实例化bean写成stuxml.xml没有写classpath报错

@ImportResource(locations = {"classpath:stuxml.xml"})

package com.example.demo;import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.ImportResource;
@ImportResource(locations = {"classpath:stuxml.xml"})
@SpringBootApplication
public class Demo3Application {public static void main(String[] args) {
SpringApplication.run(Demo3Application.class, args);
}}

bean文件

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd"> 
<bean id="stu" class="com.example.demo.Stu">
<property name="name" value="xiaochun" />
</bean></beans>

实体类

package com.example.demo;public class Stu {
String name ;@Override
public String toString() {
return "Stu [name=" + name + "]";
}