Spring 注解读取配置文件

直接上代码

package com.zbmes.common;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.PropertySource;
/**
 * 系统配置类
 */
@Configuration
@PropertySource("classpath:/conf/test.properties")
public class SysConstant {
	
	public static String username ;
	
	public static String password ;

	public static String getUsername() {
		return username;
	}

	@Value("${admin.username}")
	public void setUsername(String username) {
		SysConstant.username = username;
	}

	public static String getPassword() {
		return password;
	}

	@Value("${admin.password}")
	public void setPassword(String password) {
		SysConstant.password = password;
	}
}

对应配置文件

admin.username=kitty
admin.password=cat

要注意的地方：

set方法不可以用static修饰，否则会报错。报错内容一般如下

Autowired annotation is not supported on static fields: ……