1. Set by annotating @value for each. This case defaults to reading the contents of the application-*.properties file, for example setting the boot from dev mode

package com.esoon.ele.web.config;/**
 * Created by burns.
 *
 * @author <a href="http://www.esoon-soft.com/">burns</a>
 * @date2021/06/24 11:32 * /

import lombok.Data;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;

/**
 * TODO
 *
 * @ClassName appModel
 * @Author Burns
 * @DAte2021/6/24 11:32 * /
@Component
@Data
public class AppModel {

    @Value("${app.name}")
    private String appName;

    @Value("${app.version}")
    private String appVersion;

    @Value("${app.info}")
    private String appInfo;

    @Value("${app.number}")
    private String appNumber;

}
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2. The second way is that the Java class attributes and application-*.properties are identical except for the prefix, and the configuration in the configuration file is defined in the Java class annotations

package com.esoon.ele.web.config;/**
 * Created by burns.
 *
 * @author <a href="http://www.esoon-soft.com/">burns</a>
 * @date 2021/06/24 13:51
 */

import lombok.Data;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Component;

/**
 * TODO
 *
 * @ClassName HomeProperties
 * @Author Burns
 * @DAte 2021/6/24 13:51
 */
@Data
@Component
@ConfigurationProperties(prefix = "home")
public class HomeProperties {
    /** ** province */
    private String province;
    /** * city */
    private String city;
    /** * description */
    private String desc;
}
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3. The third way is to read from another common configuration file, either in the classpath or in another common path for example


/ * * *@Title: ConfigProperties.java
 * @Package com.acconsys.ids.util
 * @Description: TODO(a one-sentence description of what the file does) *@author 35725
 * @dateJanuary 8, 2020 9:20:40 am *@versionV1.0 * /

package com.esoon.ids.common;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.PropertySource;
import org.springframework.stereotype.Component;

/ * * *@ClassName: ConfigProperties
 * @Description: TODO(here is a one-sentence description of what this class does) *@author 35725
 * @date8 January 2020 * */
@Component
//@PropertySource(value = "classpath:config/config.properties")
@PropertySource(value="file:${cis.properties}")
public class CisProperties {
	@Value("${cis.ip}")
	private String ip;
	
	@Value("${cis.port}")
	private int port;
	
	@Value("${cis.username}")
	private String username;
	
	@Value("${cis.password}")
	private String password;
	

	

	/ * * *@valueAnnotations inject properties 1. Use above the class name@PropertySource(" CLASspath :*") * annotation,* stands for properties file path, can point to multiple configuration file path * if multiple configuration files, yes@PropertySource({"classpath:*","classpath:*".... }) 2. * is used directly on fields@valueNote 3. The annotations in using ${core. The pool. The size} core. The pool. The size on behalf of the properties file inside the key 5. Need to add PropertySourcesPlaceholderConfigurer bean 6 *. In the * PropertySourcesPlaceholderConfigurer is increased@beanAnnotation stating that a bean is returned, otherwise injection will fail * */


//	@Bean
//	public static PropertySourcesPlaceholderConfigurer propertySourcesPlaceholderConfigurer() {
// return new PropertySourcesPlaceholderConfigurer();
//	}

	public String getIp(a) {
		return ip;
	}

	public void setIp(String ip) {
		this.ip = ip;
	}

	public int getPort(a) {
		return port;
	}

	public void setPort(int port) {
		this.port = port;
	}

	public String getUsername(a) {
		return username;
	}

	public void setUsername(String username) {
		this.username = username;
	}

	public String getPassword(a) {
		return password;
	}

	public void setPassword(String password) {
		this.password = password; }}Copy the code