基于Spring Java的配置加载资源（来自类路径）

Question

<bean id="marshaller" class="org.springframework.oxm.jaxb.Jaxb2Marshaller">
  <property name="schema" value="classpath:/xsd/schema.xsd" />
  <property name="contextPath" value="com.company.app.jaxb" />
</bean>

@Configuration
public class AppConfig {

    @Autowired
    private ApplicationContext applicationContext;

    @Bean
    public Marshaller marshaller() {
        Jaxb2Marshaller marshaller = new Jaxb2Marshaller();
        marshaller.setSchema(applicationContext.getResource("classpath:/xsd/schema.xsd"));
        marshaller.setContextPath("com.company.app.jaxb");
        return marshaller;
    }

问：什么是加载资源的正确解决方案（从类路径和/或一般情况下）？Spring文档中提倡使用ApplicationContext:http://docs.Spring.io/Spring/docs/current/spring-framework-reference/html/beans.html#context-introduction

问：为什么autowired字段仍然为空？

Answer 1

对于

marshaller.setSchema(applicationContext.getResource("classpath:/xsd/schema.xsd"));

您可以使用

marshaller.setSchema(new ClassPathResource("/xsd/schema.xsd"));

但我无法重现您注入的applicationcontext字段为null。