UndertowServer+SpringMVC+Thymeleaf模板引擎构建轻量级的web项目

这两周需要写一个页面来请求另一个服务中的接口，服务器采用了超轻量级的undertow，模板引擎采用的是Thymeleaf，在寻找页面资源位置这个地方难住了我。下面分享一下，这方面的代码。

SpringWebConfig方面：

public class SpringWebConfig extends WebMvcConfigurerAdapter {
    private static boolean initialized = false;

    @Bean
    public static PropertySourcesPlaceholderConfigurer config() {
        return SpringConfigHelper.createPlaceholderConfigBean("classpath:prime.cfg");
    }

    /**
     * Spring容器初始化完成后回调该函数
     * 通过该机制可以动态扩展bean实例配置
     * 用于工作服务框架加载工作服务实现相关bean
     *
     * @param basePackage 扩展bean扫描路径
     * @return ApplicationListener实例
     */
    @Bean
    public ApplicationListener<ContextRefreshedEvent> initializedEvent(
            @Value("${Optimus.Prime.ServiceBasePackage:}") String basePackage) {
        return new ApplicationListener<ContextRefreshedEvent>() {
            @Override
            public void onApplicationEvent(ContextRefreshedEvent event) {
                if (!initialized) {
                    initialized = true;
                    SpringConfigHelper.appendBeanFromPackage(
                            (AnnotationConfigWebApplicationContext) event.getApplicationContext(),
                            basePackage);
                }
            }
        };
    }

    /**
     * 模板解析器
     * @return 解析器
     */
    @Bean
    public SpringResourceTemplateResolver templateResolver() {
        SpringResourceTemplateResolver resolver = new SpringResourceTemplateResolver();
        resolver.setPrefix("classpath:/template/");
        resolver.setSuffix(".html");
        resolver.setTemplateMode(TemplateMode.HTML);
        resolver.setCacheable(false);
        resolver.setCharacterEncoding("UTF-8");
        return resolver;
    }

    /**
     * 解析器
     * @param templateResolver 解析器
     * @return
     */
    @Bean
    public SpringTemplateEngine templateEngine(SpringResourceTemplateResolver templateResolver) {
        SpringTemplateEngine engine = new SpringTemplateEngine();
        engine.setTemplateResolver(templateResolver);

        return engine;
    }
    /**
     * 视图解析器
     * @param templateEngine 解析器
     * @return  视图解析
     */
    @Bean
    public ThymeleafViewResolver viewResolver(SpringTemplateEngine templateEngine) {
        ThymeleafViewResolver resolver = new ThymeleafViewResolver();
        resolver.setTemplateEngine(templateEngine);
        resolver.setCharacterEncoding("UTF-8");

return resolver;
    }
}

UndertowServer 的启动方法：

public int start() {
    DeploymentInfo servletBuilder = Servlets.deployment()
            .setClassLoader(UndertowServer.class.getClassLoader())
            .setContextPath("/TAE/rest/v1")
            .setDeploymentName("test.war")
            .addServletContextAttribute(
                    SpringContextListener.PARENT_CONTEXT, context)
            .addListeners(
                    Servlets.listener(SpringContextListener.class))
            .addServlets(
                    Servlets.servlet("resource", DispatcherServlet.class)
                            .addInitParam("contextClass",
                                    "org.springframework.web.context.support"
                                            + ".AnnotationConfigWebApplicationContext")
                            .addInitParam("contextConfigLocation",
                                    configClass)
                            .addMapping("/*")
                            .setLoadOnStartup(1)
            )
            .addServletContextAttribute(WebSocketDeploymentInfo.ATTRIBUTE_NAME,
                    new WebSocketDeploymentInfo()
                            .setBuffers(new DefaultByteBufferPool(true, 100))
            );

    DeploymentManager manager = Servlets.defaultContainer()
            .addDeployment(servletBuilder);
    manager.deploy();

    try {
        PathHandler path = Handlers.path(Handlers.redirect("/"))
                .addPrefixPath("/", manager.start());

        server = Undertow.builder()
                .addHttpListener(port, host)
                .setHandler(path)
                .build();

        server.start();
    } catch (Exception e) {
        log.fatal("cannot start web server", e);
        return CommonError.FATAL_FAIL;
    }
    return CommonError.SUCCESS;
}