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我有一个应用程序，它总是从 spring 控制器返回 jsp 文件作为视图。如下图所示：

@RequestMapping("/home")
public class HomeController {
@RequestMapping(value = "", method = RequestMethod.GET)
public ModelAndView home(HttpServletResponse response){
    ModelAndView modelView = new ModelAndView("home")
    return modelView;
}


@Override
public void addResourceHandlers(ResourceHandlerRegistry registry) {
    registry.addResourceHandler("/content/**").addResourceLocations("WEB-INF/content/");
}

@Bean
public InternalResourceViewResolver setupViewResolver() {
    InternalResourceViewResolver viewResolver = new InternalResourceViewResolver();
    viewResolver.setPrefix("/WEB-INF/views/");
    viewResolver.setSuffix(".jsp");
    return viewResolver;
}

但现在代替 home.jsp 我必须为这个特定的映射返回 index.html。html 文件位于不同的文件夹中，不在 /WEB-INF/views/ 中，而是在 user/src 中。

我试过使用这样的东西，设置视图解析器的顺序，我在互联网上的某个地方看到了这段代码，它检查文件是否存在于路径中。但这对我不起作用。

它总是试图在 WEB-INF/views/ 中找到索引并且失败了。

 @Bean
  public ViewResolver htmlViewResolver() {
    UrlBasedViewResolver resolver = new ChainableUrlBasedViewResolver();
    resolver.setPrefix("/client/src/");
    resolver.setSuffix(".html");
    resolver.setOrder(0);
    return resolver;
  }

@Bean
public InternalResourceViewResolver setupViewResolver() {
    InternalResourceViewResolver viewResolver = new InternalResourceViewResolver();
    viewResolver.setPrefix("/WEB-INF/views/");
    viewResolver.setSuffix(".jsp");
    viewResolver.setOrder(1);
    return viewResolver;
}


public class ChainableUrlBasedViewResolver extends UrlBasedViewResolver {

  public ChainableUrlBasedViewResolver() {
      setViewClass(InternalResourceView.class);
  }

  @Override
  protected AbstractUrlBasedView buildView(String viewName) throws Exception {
    String url = getPrefix() + viewName + getSuffix();
    InputStream stream = getServletContext().getResourceAsStream(url);
    if (stream == null) {
      return new NonExistentView();
    }
    return super.buildView(viewName);
  }

  private static class NonExistentView extends AbstractUrlBasedView {
    @Override
    protected boolean isUrlRequired() {
        return false;
    }

    @Override
    public boolean checkResource(Locale locale) throws Exception {
      return false;
    }
    @Override
    protected void renderMergedOutputModel(Map<String, Object> model,
                                           HttpServletRequest request,
                                           HttpServletResponse response) throws Exception {
      // Purposely empty, it should never get called
    }
  }
}

任何想法如何使用 Spring 来做到这一点。

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