15

我在 xml 配置文件中定义了:

<bean id="bootstrap" class="com.package.Bootstrap"></bean>

这很好用。

引导类:

public class Bootstrap {

   @PostConstruct
   public void onServerStart() {
      System.out.println("PRINTSSSSSSSSSSSSSSSSSSS");
   }
}

该方法被解雇。

但是我怎样才能摆脱 xml 部分,并将 bootstrap 注释为 bean 呢?

我有

<mvc:annotation-driven />
<context:annotation-config /> 

<context:component-scan base-package="com.package" />

但我想知道使用的注释应该是什么替换:

<bean id="bootstrap" class="com.package.Bootstrap"></bean>

我在网上和春季文档中找不到任何关于此的信息:(

4

2 回答 2

18

有关于此的文档;你会想要一个像@Component.

构造型 bean 注释

于 2012-04-12T15:20:45.487 回答
4

这是我刚刚制作的一个简单示例:

主.java

package the.test;

import org.springframework.context.annotation.AnnotationConfigApplicationContext;
import org.springframework.context.support.AbstractApplicationContext;

public class Main {

public static void main(String[] args) {

    AbstractApplicationContext aac = new AnnotationConfigApplicationContext(Person.class, Phones.class);
    Person person = aac.getBean(Person.class);
    System.out.println(person.getPhones().getPhoneOne());
    System.out.println(person.getPhones().getPhoneTwo());
    System.out.println(person.getSurname());
    System.out.println(person.getName());
    System.out.println(person.getAge());
    aac.close();

    }
}


人.java

package the.test;

import javax.annotation.Resource;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Configuration;

@Configuration

//you may use @ComponentScan("the.test") here and omit declaring 
//"Phone.class" in the main method 

public class Person {
private int age;
private String name;
private String surname;

private Phones phones;

public int getAge() {
    return age;
}
@Value("33")
public void setAge(int age) {
    this.age = age;
}

public String getName() {
    return name;
}

@Value("John")
public void setName(String name) {
    this.name = name;
}

public String getSurname() {
    return surname;
}

@Value("Due")
public void setSurname(String surname) {
    this.surname = surname;
}

public Phones getPhones() {
    return phones;
}
@Resource
public void setPhones(Phones phones) {
    this.phones = phones;
}
}


电话.java

package the.test;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Configuration;

@Configuration
public class Phones {
private String PhoneOne;
private String PhoneTwo;

public String getPhoneOne() {
    return PhoneOne;
}

@Value("987654321")
public void setPhoneOne(String phoneOne) {
    PhoneOne = phoneOne;
}

public String getPhoneTwo() {
    return PhoneTwo;
}

@Value("123456")
public void setPhoneTwo(String phoneTwo) {
    PhoneTwo = phoneTwo;
}

}

这完全基于 Spring Annotation 并在 spring 框架 4.2.5 上制作

希望能帮助到你。

于 2016-03-31T17:47:06.940 回答