應用場景：工具類的靜態方法使用了service註入

1. xml的init-method方式

<bean id="SecurityUtil" class="com.*.*.util.SecurityUtil" init-method="init">
        <property name="propertyConfigurerTmp" ref="propertyConfigurer"/>
</bean>
    
<bean id="propertyConfigurer"class="com.*.*.service.PropertyConfigurer"
 
/>

public class SecurityLogic {
    private PropertyConfigurer propertyConfigurerTmp;
    

private static PropertyConfigurer propertyConfigurer;

    public void init() {
        SecurityLogic.propertyConfigurer = propertyConfigurerTmp;
    }

    public static void encrypt(String param) throws Exception {
        String encryptType
 
=propertyConfigurer.getProperty("encryptType");
        //todo
    }
}

2. 註解@PostConstruct方式

@Component
public class SecurityLogic {

    @Autowired
    private PropertyConfigurer propertyConfigurerTmp;
    
    private static PropertyConfigurer propertyConfigurer;

    @PostConstruct
    public void
 
 init() {
        SecurityLogic.propertyConfigurer = propertyConfigurerTmp;
    }

    public static void encrypt(String param) throws Exception {
        String encryptType=propertyConfigurer.getProperty("encryptType");
        //todo
    }
}

3. set方法上面添加註解方式

@Component
public class SecurityLogic {

    private static PropertyConfigurer propertyConfigurer;

    @Autowired
    public void setPropertyConfigurer(PropertyConfigurer propertyConfigurer) {
        SecurityLogic.propertyConfigurer = propertyConfigurer;
    }

    public static void encrypt(String param) throws Exception {
        String encryptType=propertyConfigurer.getProperty("encryptType");
        //todo
    }
}

Spring靜態屬性的註入