如何解决错误：freemarker.template.TemplateNotFoundException 并使用 Spring Boot 在 FreeMarker 中指定加载模板文件的自定义路径

Question

Resolve error:

freemarker.template.TemplateNotFoundException: Template not found for name . The name was interpreted by this TemplateLoader: LegacyDefaultFileTemplateLoader(baseDir="", canonicalBasePath="" Warning: The "template_loader" FreeMarker setting wasn't set (Configuration.setTemplateLoader), and using the default value is most certainly not intended and dangerous, and can be the cause of this error.

Answer 1

To specify a custom path from which to read the template file in Java Spring Boot just create a method like this that creates a custom FileTemplateLoader:

public freemarker.template.Configuration getConfiguration() throws IOException {
        FileTemplateLoader fileTemplateLoader = new FileTemplateLoader(new File(templateBasePath));
        freemarker.template.Configuration config = new freemarker.template.Configuration();
        config.setTemplateLoader(fileTemplateLoader);
        return config;
    }

rather than:

@Bean
public FreeMarkerConfigurationFactoryBean freemarkerConfiguration() {
    FreeMarkerConfigurationFactoryBean bean = new FreeMarkerConfigurationFactoryBean();
    bean.setTemplateLoaderPath("classpath:/templates/");
    return bean;
}