SpringBoot学习（五）

my.name=xuhaixing
my.age=25
my.sex=man

@Configuration  //证明这是一个配置类
@PropertySource(value = {"classpath:test.properties"}, ignoreResourceNotFound = true)//可以放多个,{}里面用,分开
public class User {
 
    //可以不用set方法,直接就能注入,属于注入
    @Value("${my.name}")
    private String name;
 
    @Value("${my.age}")
    private int age;
 
    @Value("${my.sex}")
    private String sex;
 
 
    public String getName() {
        return name;
    }
 
    public int getAge() {
        return age;
    }
 
    public String getSex() {
        return sex;
    }
 
}

@RestController
public class HelloController {
 
    @Autowired
    private User user;
 
    @RequestMapping(value = "/getUser")
    public String getUser() {
        return user.getName() + " " + user.getSex() + " " + user.getAge();
    }
}

@Configuration
@PropertySource(value = "classpath:test.properties")
@ConfigurationProperties(prefix = "my")  //需要有set方法，prefix指明该对象中所有属性的前缀，对应文件中的属性名
public class UserPrefix {
    private String name;
    private int age;
    private String sex;
 
 
    public void setName(String name) {
        this.name = name;
    }
 
    public void setAge(int age) {
        this.age = age;
    }
 
    public void setSex(String sex) {
        this.sex = sex;
    }
 
    public String getName() {
        return name;
    }
 
    public int getAge() {
        return age;
    }
 
    public String getSex() {
        return sex;
    }
}

@RestController
@EnableConfigurationProperties({UserPrefix.class})  //激活配置,测试了一下,也可以没有
public class HelloPrefixController {
 
    @Autowired
    private UserPrefix userPrefix;
 
    @RequestMapping(value = "/getUserPrefix")
    public String getUserPrefix() {
        return userPrefix.getName() + " " + userPrefix.getSex() + " " + userPrefix.getAge();
    }
 
}