spring-boot学习记录随笔

2018年5月15日17:28:30 发表评论 573 views

1、banner

去掉banner，有两种方法

第一种：coding

public static void main(String[] args) {
	SpringApplication app = new SpringApplication(MySpringConfiguration.class);
	app.setBannerMode(Banner.Mode.OFF);
	app.run(args);
}

public static void main(String[] args) {

SpringApplication app = new SpringApplication(MySpringConfiguration.class);

app.setBannerMode(Banner.Mode.OFF);

app.run(args);

}

第二种：配置文件

spring:
	main:
		banner-mode: "off"

spring:

main:

banner-mode: "off"

2、使用SpringApplication中传入的args

import org.springframework.boot.*;
import org.springframework.beans.factory.annotation.*;
import org.springframework.stereotype.*;

@Component
public class MyBean {

	@Autowired
	public MyBean(ApplicationArguments args) {
		boolean debug = args.containsOption("debug");
		List&amp;amp;lt;String&amp;amp;gt; files = args.getNonOptionArgs();
		// if run with "--debug logfile.txt" debug=true, files=["logfile.txt"]
	}

}

import org.springframework.boot.*;

import org.springframework.beans.factory.annotation.*;

import org.springframework.stereotype.*;

@Component

public class MyBean {

@Autowired

public MyBean(ApplicationArguments args) {

boolean debug = args.containsOption("debug");

List&amp;lt;String&amp;gt; files = args.getNonOptionArgs();

// if run with "--debug logfile.txt" debug=true, files=["logfile.txt"]

}

3、ApplicationRunner or CommandLineRunner

ApplicationRunner和CommandLineRunner都是接口，都提供run方法实现，且都是在SpringApplication.run()方法前调用。不同点事两者接触application arguments的范式不一样，前者通过上面提到的ApplicationArguments方式使用参数，后者通过字符串数组的方式使用参数。

import org.springframework.boot.*;
import org.springframework.stereotype.*;

@Component
public class MyBean implements CommandLineRunner {

	public void run(String... args) {
		// Do something...
	}

}

import org.springframework.boot.*;

import org.springframework.stereotype.*;

@Component

public class MyBean implements CommandLineRunner {

public void run(String... args) {

// Do something...

}

4、屏蔽掉spring-boot框架的日志

在你的main函数入口处加入如下的环境变量:

static {
        System.setProperty("log4j.shutdownCallbackRegistry", "com.djdch.log4j.StaticShutdownCallbackRegistry");
    }

static {

System.setProperty("log4j.shutdownCallbackRegistry", "com.djdch.log4j.StaticShutdownCallbackRegistry");

}

需要加入如下的依赖：

        <dependency>
            <groupId>com.djdch.log4j</groupId>
            <artifactId>log4j-staticshutdown</artifactId>
            <version>1.1.0</version>
        </dependency>