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在Spring Boot中，我添加了@Configuration註釋@EnableWebMvc爲自定義MVC。它使用src/main/resources/templates下的Freemarker模板。問題在於登錄頁面正在以瀏覽器空白的json的形式返回。我是否需要添加額外的內容協商或其他內容？ THX春季引導發送空JSON爲自定義FreeMarker登錄頁
@Configuration
@EnableWebMvc
public class WebMvcConfig extends WebMvcConfigurerAdapter {
@Bean
public static PropertySourcesPlaceholderConfigurer propertySourcesPlaceholderConfigurer() {
return new PropertySourcesPlaceholderConfigurer();
}
@Bean
public ContentNegotiatingViewResolver contentViewResolver() throws Exception {
ContentNegotiationManagerFactoryBean contentNegotiationManager = new ContentNegotiationManagerFactoryBean();
contentNegotiationManager.addMediaType("json", MediaType.APPLICATION_JSON);
FreeMarkerViewResolver viewResolver = new FreeMarkerViewResolver();
viewResolver.setPrefix("/templates/");
viewResolver.setSuffix(".ftl");
MappingJackson2JsonView defaultView = new MappingJackson2JsonView();
defaultView.setExtractValueFromSingleKeyModel(true);
ContentNegotiatingViewResolver contentViewResolver = new ContentNegotiatingViewResolver();
contentViewResolver.setContentNegotiationManager(contentNegotiationManager.getObject());
contentViewResolver.setViewResolvers(Arrays.<ViewResolver> asList(viewResolver));
contentViewResolver.setDefaultViews(Arrays.<View> asList(defaultView));
return contentViewResolver;
}
....
}
@Controller
@SessionAttributes
public class LoginController {
@RequestMapping("/login")
public String login() {
return "login";
}
}