网站建设哪个平台好,网页制作接单,做的王者荣耀钓鱼网站,免费自己制作logo的网站003讲到了导入jar包中的方法#xff0c;但其实是个半成品#xff0c;别人写的jar包中的方法我要在自己的代码中去调用#xff0c;非常的不方便。原则上写给别人用的jar包#xff0c;人家要能直接用#xff0c;而不用写注入的方法。
在springboot中会自动扫描imports文件中…003讲到了导入jar包中的方法但其实是个半成品别人写的jar包中的方法我要在自己的代码中去调用非常的不方便。原则上写给别人用的jar包人家要能直接用而不用写注入的方法。
在springboot中会自动扫描imports文件中的内容利用这一点进行自动注入的开发 以下是整个jar包的目录 Country
//
// Source code recreated from a .class file by IntelliJ IDEA
// (powered by FernFlower decompiler)
//package cn.itcast.pojo;public class Country {private String name;private String system;public Country() {}public Country(String name, String system) {this.name name;this.system system;}public String getName() {return this.name;}public void setName(String name) {this.name name;}public String getSystem() {return this.system;}public void setSystem(String system) {this.system system;}public String toString() {return Country{name this.name , system this.system };}
}Province
//
// Source code recreated from a .class file by IntelliJ IDEA
// (powered by FernFlower decompiler)
//package cn.itcast.pojo;public class Province {private String name;private String direction;public Province() {}public Province(String name, String direction) {this.name name;this.direction direction;}public String getName() {return this.name;}public void setName(String name) {this.name name;}public String getDirection() {return this.direction;}public void setDirection(String direction) {this.direction direction;}public String toString() {return Province{name this.name , direction this.direction };}
}CommonConfig
//
// Source code recreated from a .class file by IntelliJ IDEA
// (powered by FernFlower decompiler)
//package cn.itcast.config;import cn.itcast.pojo.Country;
import cn.itcast.pojo.Province;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.context.annotation.Bean;public class CommonConfig {public CommonConfig() {}ConditionalOnProperty(prefix country,name {name, system})Beanpublic Country country(Value(${country.name}) String name, Value(${country.system}) String system) {return new Country(name, system);}Beanpublic Province province() {return new Province();}
}CommonAutoConfig
//
// Source code recreated from a .class file by IntelliJ IDEA
// (powered by FernFlower decompiler)
//package cn.itcast.config;import org.springframework.boot.autoconfigure.AutoConfiguration;
import org.springframework.context.annotation.Import;AutoConfiguration
Import({CommonConfig.class})
public class CommonAutoConfig {public CommonAutoConfig() {}
}xxx.imports
cn.itcast.config.CommonAutoConfig
以上封装好的jar包就能自动注入了
接着在工程中引用
package com.geji;import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.ApplicationContext;/*** Hello world!**/
SpringBootApplication
public class SpringbootAutoConfigApplication
{public static void main( String[] args ){ApplicationContext context SpringApplication.run(SpringbootAutoConfigApplication.class,args);System.out.println(context.getBean(dispatcherServlet));System.out.println(context.getBean(province));}
}以上是自动配置功能项目中也能用了但是在实际工作中会更进一步编写starter用来实现依赖管理功能这样的话给别人用的时候就更方便了
创建两个maven工程dmybatis-spring-boot-aotuconfiguredmybatis-spring-boot-starter dmybatis-spring-boot-aotuconfigure无所谓的跟上半篇一模一样
在dmybatis-spring-boot-aotuconfigure编写Porn.xml 在dmybatis-spring-boot-aotuconfigure编写自动配置类 编写可以给spring自动扫描的配置文件 以下文件没用到删了 dmybatis-spring-boot-starter引入dmybatis-spring-boot-aotuconfigure和dmybatis-spring-boot-aotuconfigure本身引入的其他包 dmybatis-spring-boot-starter只是个依赖管理删除其他文件 以上就完成了这样就能在其他项目中直接引入了
