Spring Boot和FreeMarker

Question

Spring Boot和FreeMarker

我正在尝试一个简单的Spring Boot和FreeMarker集成示例(基于我在网上找到的教程).出于某种原因,我的观点没有解决FreeMarker模板(我认为这是问题).

在浏览器中启动时的结果只是返回TFL视图文件的名称,即"索引".因此调用控制器并返回字符串"index",但似乎没有触发器来拉入FTL文件本身.任何帮助,将不胜感激...

我有以下配置类,我定义了视图解析器和Free Maker配置.

@Configuration
public class MvcConfigurer extends WebMvcConfigurerAdapter {
    @Bean
    public ViewResolver viewResolver() {
        FreeMarkerViewResolver resolver = new FreeMarkerViewResolver();
        resolver.setCache(true);
        resolver.setPrefix("");
        resolver.setSuffix(".ftl");
        resolver.setContentType("text/html; charset=UTF-8");
        return resolver;
    }

    @Bean
    public FreeMarkerConfigurer freemarkerConfig() throws IOException, TemplateException {
        FreeMarkerConfigurationFactory factory = new FreeMarkerConfigurationFactory();
        factory.setTemplateLoaderPaths("classpath:templates", "src/main/resource/templates");
        factory.setDefaultEncoding("UTF-8");
        FreeMarkerConfigurer result = new FreeMarkerConfigurer();
        result.setConfiguration(factory.createConfiguration());
        return result;
    }
}

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然后我有以下控制器:

@RestController
public class HelloController {

    /**
     * Static list of users to simulate Database
     */
    private static List<User> userList = new ArrayList<User>();

    //Initialize the list with some data for index screen
    static {
        userList.add(new User("Bill", "Gates"));
        userList.add(new User("Steve", "Jobs"));
        userList.add(new User("Larry", "Page"));
        userList.add(new User("Sergey", "Brin"));
        userList.add(new User("Larry", "Ellison"));
    }

    /**
     * Saves the static list of users in model and renders it 
     * via freemarker template.
     * 
     * @param model 
     * @return The index view (FTL)
     */
    @RequestMapping(value = "/index", method = RequestMethod.GET)
    public String index(@ModelAttribute("model") ModelMap model) {

        model.addAttribute("userList", userList);

        return "index";
    }

    /**
     * Add a new user into static user lists and display the 
     * same into FTL via redirect 
     * 
     * @param user
     * @return Redirect to /index page to display user list
     */
    @RequestMapping(value = "/add", method = RequestMethod.POST)
    public String add(@ModelAttribute("user") User user) {

        if (null != user && null != user.getFirstname()
                && null != user.getLastname() && !user.getFirstname().isEmpty()
                && !user.getLastname().isEmpty()) {

            synchronized (userList) {
                userList.add(user);
            }
        }
        return "redirect:index.html";
    }
}

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最后我将以下FTL文件存储在"src/main/resource/templates"中

<html>
<head><title>ViralPatel.net - FreeMarker Spring MVC Hello World</title>
<body>
<div id="header">
<H2>
    <a href="http://viralpatel.net"><img height="37" width="236" border="0px" src="http://viralpatel.net/blogs/wp-content/themes/vp/images/logo.png" align="left"/></a>
    FreeMarker Spring MVC Hello World
</H2>
</div>

<div id="content">

  <fieldset>
    <legend>Add User</legend>
  <form name="user" action="add.html" method="post">
    Firstname: <input type="text" name="firstname" /> <br/>
    Lastname: <input type="text" name="lastname" />   <br/>
    <input type="submit" value="   Save   " />
  </form>
  </fieldset>
  <br/>
  <table class="datatable">
    <tr>
        <th>Firstname</th>  <th>Lastname</th>
    </tr>
    <#list model["userList"] as user>
    <tr>
        <td>${user.firstname}</td> <td>${user.lastname}</td>
    </tr>
    </#list>
  </table>

</div>  
</body>
</html>

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Answer 1

Pau*_*tos 13

问题是您的控制器具有错误的注释.您应该使用@Controller而不是@RestController

@RestController用于告知从控制器发送的响应应该发送到浏览器,通常是映射到json的对象.它与添加@ResponseBody相同.

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