SpringBoot读取配置文件的6种方式

缺乏、安全感 2023-02-14 10:22 11阅读 0赞

参考文章：[SpringBoot读取配置文件的6种方式][SpringBoot_6]

配置文件:	
    	woman.properties
    		woman.name=女人
    		woman.age=20
    		friend.sex=女
    		friend.age=111
    		
    	friend.properties
    		friend.sex=男
    		friend.age=222
    		
    /* ====================== 方式一: @Value注解 ==========================*/		
    @Component
    public class Student {
        @Value("${student.name}")
        private String name;
        
    	@Value("${student.age}")
        private Integer age;
    
        public String getName() {
            return name;
        }
    
        public void setName(String name) {
            this.name = name;
        }
    
        public Integer getAge() {
            return age;
        }
    
        public void setAge(Integer age) {
            this.age = age;
        }
    
        @Override
        public String toString() {
            return "Student{" +
                    "name='" + name + '\'' +
                    ", age=" + age +
                    '}';
        }
    }
    
    /* ====================== 方式二: @ConfigurationProperties注解 ==========================*/	
    @ConfigurationProperties(prefix = "person")
    @Component
    public class Person {
        private String lastName;
        private Integer age;
        private Boolean boss;
        private Date birth;
    
        private Map<String,Object> maps;
        private List<Object> lists;
        private Dog dog;
    
        public String getLastName() {
            return lastName;
        }
    
        public void setLastName(String lastName) {
            this.lastName = lastName;
        }
    
        public Integer getAge() {
            return age;
        }
    
        public void setAge(Integer age) {
            this.age = age;
        }
    
        public Boolean getBoss() {
            return boss;
        }
    
        public void setBoss(Boolean boss) {
            this.boss = boss;
        }
    
        public Date getBirth() {
            return birth;
        }
    
        public void setBirth(Date birth) {
            this.birth = birth;
        }
    
        public Map<String, Object> getMaps() {
            return maps;
        }
    
        public void setMaps(Map<String, Object> maps) {
            this.maps = maps;
        }
    
        public List<Object> getLists() {
            return lists;
        }
    
        public void setLists(List<Object> lists) {
            this.lists = lists;
        }
    
        public Dog getDog() {
            return dog;
        }
    
        public void setDog(Dog dog) {
            this.dog = dog;
        }
    
        @Override
        public String toString() {
            return "Person{" +
                    "lastName='" + lastName + '\'' +
                    ", age=" + age +
                    ", boss=" + boss +
                    ", birth=" + birth +
                    ", maps=" + maps +
                    ", lists=" + lists +
                    ", dog=" + dog +
                    '}';
        }
    }
    
    /* ====================== 方式三: @PropertySource配合@Value ==========================*/	
    @Component
    @PropertySource(value = {"classpath:config/teacher.properties"})
    public class Teacher {
        @Value("${name}")
        private String name;
       
       @Value("${age}")
        private Integer age;
    
        public String getName() {
            return name;
        }
    
        public void setName(String name) {
            this.name = name;
        }
    
        public Integer getAge() {
            return age;
        }
    
        public void setAge(Integer age) {
            this.age = age;
        }
    
        @Override
        public String toString() {
            return "Teacher{" +
                    "name='" + name + '\'' +
                    ", age=" + age +
                    '}';
        }
    }
    
    /* ====================== 方式四: @ConfigurationProperties配合@PropertySource配合@Value ==========================*/	
    @Component
    @ConfigurationProperties(prefix = "woman")
    @PropertySource(value = { "classpath:config/woman.properties" })
    public class Woman {
        @Value("${name}")
        private String name;
        @Value("${age}")
        private Integer age;
    
        public String getName() {
            return name;
        }
    
        public void setName(String name) {
            this.name = name;
        }
    
        public Integer getAge() {
            return age;
        }
    
        public void setAge(Integer age) {
            this.age = age;
        }
    
        @Override
        public String toString() {
            return "Woman{" +
                    "name='" + name + '\'' +
                    ", age=" + age +
                    '}';
        }
    }
    
    /* ====================== 方式五: @ConfigurationProperties配合@Value ==========================*/	
    @Component
    @ConfigurationProperties(prefix = "man")
    public class Man {
        @Value("${a}")
        private String name;
        @Value("${b}")
        private Integer age;
    
        public String getName() {
            return name;
        }
    
        public void setName(String name) {
            this.name = name;
        }
    
        public Integer getAge() {
            return age;
        }
    
        public void setAge(Integer age) {
            this.age = age;
        }
    
        @Override
        public String toString() {
            return "Man{" +
                    "name='" + name + '\'' +
                    ", age=" + age +
                    '}';
        }
    }
    
    /* ====================== 方式六: Environment ==========================*/
    @Test
    public void testEnvironment() {
        System.out.println(env.getProperty("student.name"));
    }

[SpringBoot_6]: https://my.oschina.net/imlim/blog/1859091