SpringBoot第 5 讲：SpringBoot+properties配置文件读取

参考：SpringBoot第 1 讲：HelloWorld_秦毅翔的专栏-CSDN博客

pom.xml中只需要添加springboot依赖即可

	4.0.0
	
	
		org.springframework.boot
		spring-boot-starter-parent
		1.5.2.RELEASE
	
	

	org.personal.qin.demos
	properties_read_demo
	1.0.0-SNAPSHOT
	jar

	
		UTF-8
		UTF-8
		
		1.8
	

	
		
		
			org.springframework.boot
			spring-boot-starter-web
		
		

		
		
			org.springframework
			spring-webmvc
		
		

	

	
		${project.artifactId}
		
			
			
				org.apache.maven.plugins
				maven-resources-plugin
				
					UTF-8
				
			
			
			
				org.apache.maven.plugins
				maven-compiler-plugin
				
					1.8
					1.8
					UTF-8
				
			
			
			
				org.springframework.boot
				spring-boot-maven-plugin
			
			
		
	

application.properties

server.port = 8080
server.context-path=/

ReadApplicationProperties.java

package demo.read.config;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Configuration;


@Configuration
@ConfigurationProperties
public class ReadApplicationProperties {
	@Value("${server.port}")
	private String port;
	
	public String read() {
		return port;
	}
}

test.properties

test.demo.name = iPhone13
test.demo.num = 100
test.demo.price = 20.5

ReadNormalProperties.java

package demo.read.config;

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


@Configuration
@PropertySource(value= {"test.properties"}, ignoreResourceNotFound = false)
public class ReadNormalProperties {
	@Value("${test.demo.name}")
	private String name;
	
	@Value("${test.demo.num}")
	private int num;
	
	@Value("${test.demo.price}")
	private double price;
	
	public String read() {
		String str = "读取字符串属性："+name+"t";
		str += "读取整型属性："+num+"t";
		str += "读取浮点型属性："+price;
		
		return str;
	}
}

package demo.read;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

import demo.read.config.ReadApplicationProperties;
import demo.read.config.ReadNormalProperties;

@SpringBootApplication
@RestController
public class PropertiesBootApplication {
	
	@Autowired
	private ReadNormalProperties readProperties;
	
	@Autowired
	private ReadApplicationProperties readApplicationProperties;

	
	@GetMapping("t1")
	public String test1() {
		return readProperties.read();
	}
	
	
	@GetMapping("t2")
	public String test2() {
		return readApplicationProperties.read();
	}
	
	public static void main(String[] args) {
		SpringApplication.run(PropertiesBootApplication.class, args);
	}
}

https://download.csdn.net/download/qzc70919700/30498626