@Value獲取值和@ConfigurationProperties獲取值比較

配置文件yml還是properties他們都能獲取到值；

如果說，我們只是在某個業務邏輯中需要獲取一下配置文件中的某項值，使用@Value；

如果說，我們專門編寫了一個javaBean來和配置文件進行映射，我們就直接使用@ConfigurationProperties；

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JSR303數據校驗

支持

不支持

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配置文件注入值數據校驗

Person.java

package com.dym.springboot.bean;import org.hibernate.validator.constraints.Email; import org.springframework.beans.factory.annotation.Value; import org.springframework.boot.context.properties.ConfigurationProperties; import org.springframework.context.annotation.PropertySource; import org.springframework.stereotype.Component; import org.springframework.validation.annotation.Validated;import javax.validation.constraints.Null; import java.util.Date; import java.util.List; import java.util.Map;@ConfigurationProperties(prefix = "person") @Component @Validated public class Person {//lastName必須是郵箱格式@Emailprivate String lastName;private Integer age;private Boolean boss;private Date birth;private Map<String,Object> maps;private List<Object> lists;private Dog dog;@Overridepublic String toString() {return "Person{" +"lastName='" + lastName + '\'' +", age=" + age +", boss=" + boss +", birth=" + birth +", maps=" + maps +", lists=" + lists +", 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;} }

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HelloController.java

package com.dym.springboot.controller;import org.springframework.beans.factory.annotation.Value; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController;@RestController public class HelloController {@Value("${person.last-name}")private String name;@RequestMapping("/sayHello")public String sayHello(){return "Hello "+name;}}

總結

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