我正在Spring Boot应用程序中编写一个处理程序,以将对象转换为CSV。我不能使用
@Autowired
MdhTotemConfiguration mdhTotemConfiguration;
我必须将其声明为变量,然后在构造函数中进行分配,如下所示。
public class CsvHttpMessageConverter extends AbstractHttpMessageConverter<CsvResponse> {
private final MdhTotemConfiguration mdhTotemConfiguration;
public static final MediaType MEDIA_TYPE = new MediaType("text", "csv", Charset.forName("utf-8"));
public CsvHttpMessageConverter(MdhTotemConfiguration mdhTotemConfiguration) {
super(MEDIA_TYPE);
this.mdhTotemConfiguration = mdhTotemConfiguration;
}
在我进行内容协商的课程中,我必须这样做:
@EnableWebMvc
@Configuration
@ComponentScan("com.mdh.totem.live")
public class AppConfig implements WebMvcConfigurer {
@Autowired
MdhTotemConfiguration mdhTotemConfiguration;
public void extendMessageConverters(List<HttpMessageConverter<?>> converters) {
converters.add(new CsvHttpMessageConverter(mdhTotemConfiguration));
}