目錄

?

?

Spring中的方法

Spring Boot中的方法

---

?

Spring中的方法

@ImportResource：導(dǎo)入Spring的配置文件，讓配置文件里面的內(nèi)容生效；

Spring Boot里面沒有Spring的配置文件，自己編寫的配置文件，也不能自動(dòng)識(shí)別；

想讓Spring的配置文件生效，加載@ImportResource標(biāo)注配置類

?

項(xiàng)目結(jié)構(gòu)如下：

程序運(yùn)行截圖如下：

對(duì)應(yīng)的源碼為：

源碼如下：

Dog.java

package com.sourceinport.demo.bean;public class Dog {private String name;private Integer age;@Overridepublic String toString() {return "Dog{" +"name='" + name + '\'' +", age=" + 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;} }

Person.java

package com.sourceinport.demo.bean;import org.springframework.boot.context.properties.ConfigurationProperties; import org.springframework.context.annotation.PropertySource; import org.springframework.stereotype.Component;import java.util.Date; import java.util.List; import java.util.Map;@PropertySource(value = {"classpath:person.properties"}) @Component @ConfigurationProperties(prefix = "person") 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;@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;} }

HelloService.java

package com.sourceinport.demo.service;public class HelloService { }

beans.xml

<?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 = "helloService" class = "com.sourceinport.demo.service.HelloService"></bean> </beans>

DemoApplicationTests.java

package com.sourceinport.demo;import com.sourceinport.demo.bean.Person; import org.junit.Test; import org.junit.runner.RunWith; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.boot.test.context.SpringBootTest; import org.springframework.context.ApplicationContext; import org.springframework.test.context.junit4.SpringRunner;@RunWith(SpringRunner.class) @SpringBootTest public class DemoApplicationTests {@AutowiredApplicationContext ioc;@Testpublic void testHelloService(){boolean b = ioc.containsBean("helloService");System.out.println(b);} }

?

?

Spring Boot中的方法

Spring Boot中推薦使用給容器中添加組建的方式（全注解方式）

@configuration指明當(dāng)前類是一個(gè)配置類，就是來替代上面的xml文件的。

@Bean：將方法的返回值添加到容器中，容器中這個(gè)組建默認(rèn)的id就是方法名；

程序邏輯結(jié)構(gòu)如下：

運(yùn)行截圖如下：

Dog.java

package com.sourceinport.demo.bean;public class Dog {private String name;private Integer age;@Overridepublic String toString() {return "Dog{" +"name='" + name + '\'' +", age=" + 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;} }

Person.java

package com.sourceinport.demo.bean;import org.springframework.boot.context.properties.ConfigurationProperties; import org.springframework.context.annotation.PropertySource; import org.springframework.stereotype.Component;import java.util.Date; import java.util.List; import java.util.Map;@PropertySource(value = {"classpath:person.properties"}) @Component @ConfigurationProperties(prefix = "person") 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;@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;} }

MyAppConfig.java

package com.sourceinport.demo.config;import com.sourceinport.demo.service.HelloService; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration;@Configuration public class MyAppConfig {@Beanpublic HelloService helloService(){System.out.println("配置@Bean給容器中添加組建");return new HelloService();} }

HelloService.java

package com.sourceinport.demo.service;public class HelloService { }

DemoApplication.java

package com.sourceinport.demo;import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.context.annotation.ImportResource;@SpringBootApplication public class DemoApplication {public static void main(String[] args) {SpringApplication.run(DemoApplication.class, args);}}

DemoApplicationTests.java

package com.sourceinport.demo;import com.sourceinport.demo.bean.Person; import org.junit.Test; import org.junit.runner.RunWith; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.boot.test.context.SpringBootTest; import org.springframework.context.ApplicationContext; import org.springframework.test.context.junit4.SpringRunner;@RunWith(SpringRunner.class) @SpringBootTest public class DemoApplicationTests {@AutowiredPerson person;@AutowiredApplicationContext ioc;@Testpublic void contextLoads() {System.out.println(person);}@Testpublic void testHelloService(){boolean b = ioc.containsBean("helloService");System.out.println(b);} }

?

總結(jié)

以上是生活随笔為你收集整理的Spring中使用XML方式导入Spring配置文件，Boot中使用全注解导入Spring配置的全部?jī)?nèi)容，希望文章能夠幫你解決所遇到的問題。

如果覺得生活随笔網(wǎng)站內(nèi)容還不錯(cuò)，歡迎將生活随笔推薦給好友。