- 讀取的配置檔案
:application.yml
jianshu: id: futaosmile
1. 使用@ConfigurationProperties注解注入
@RunWith(SpringRunner.class)
@SpringBootTest
@ConfigurationProperties(prefix = "jianshu")
public class SpringmvcdemoApplicationTests {
private String id;
@Test
public void test10() {
System.out.println(id);
}
}
- 輸出
,注入失敗null
- 原因:使用
注解的方式注入為每個注入的字段添加setter方法@ConfigurationProperties
package com.futao.springmvcdemo;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;
@RunWith(SpringRunner.class)
@SpringBootTest
@ConfigurationProperties(prefix = "jianshu")
public class SpringmvcdemoApplicationTests {
private String id;
@Test
public void test10() {
System.out.println(id);
}
public void setId(String id) {
this.id = id;
}
}
- 輸出:
2. 使用@Value注解
package com.futao.springmvcdemo;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;
@RunWith(SpringRunner.class)
@SpringBootTest
public class SpringmvcdemoApplicationTests {
@Value("${jianshu.id}")
private String id;
@Test
public void test10() {
System.out.println(id);
}
}
- 輸出:
OK