Spring Boot + Thymeleaf + Dandelion 配置不起作用

Question

我正在使用 Spring Boot with Thymeleaf，现在我想添加 Dandelion 数据表，但它不起作用。

这是我的 Maven 依赖项：

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.2.1.RELEASE</version>
    <relativePath /> <!-- lookup parent from repository -->
</parent>
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-websocket</artifactId>
</dependency>
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-tomcat</artifactId>
    <scope>provided</scope>
</dependency>
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-test</artifactId>
    <scope>test</scope>
</dependency>

<!-- Dandelion -->
<dependency>
    <groupId>com.github.dandelion</groupId>
    <artifactId>datatables-thymeleaf</artifactId>
    <version>0.10.1</version>
</dependency>

我正在遵循本指南 http://dandelion.github.io/dandelion/docs/installation/thymeleaf.html 并配置了以下 bean：

@SpringBootApplication
public class Application {

    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }

    @Bean
    public FilterRegistrationBean dandelion() {
        FilterRegistrationBean registrationBean = new FilterRegistrationBean();
        registrationBean.setFilter(new DandelionFilter());
        registrationBean.addUrlPatterns("/*");
        return registrationBean;
    }

    @Bean
    public ServletRegistrationBean dandelionServlet() {
        ServletRegistrationBean registrationBean = new ServletRegistrationBean();
        registrationBean.setServlet(new DandelionServlet());
        registrationBean.addUrlMappings("/dandelion/*");
        return registrationBean;
    }

    @Bean
    public ServletContextTemplateResolver defaultTemplateResolver() {
        ServletContextTemplateResolver resolver = new ServletContextTemplateResolver();
        resolver.setTemplateMode("HTML5");
        resolver.setPrefix("/WEB-INF/templates/");
        resolver.setSuffix(".html");
        resolver.setCharacterEncoding("UTF-8");
        resolver.setCacheable(false);

        SpringTemplateEngine engine = new SpringTemplateEngine();
        engine.setTemplateResolver(resolver);
        engine.addDialect(new DataTablesDialect());

        return resolver;
    }

}

我做了这个 HTML 用于测试：

<!doctype html>
<html 
 xmlns:th="http://www.thymeleaf.org" 
 xmlns:ddl="http://github.com/dandelion">
<head>
 <link type="text/css" href="/stylesheets/dataTables.css" media="screen" rel="stylesheet" />
 <script src="/javascripts/vendor/jquery191.js" type="text/javascript"></script>
 <script src="/javascripts/vendor/dataTables.js" type="text/javascript"></script>
</head>
<body>
 <br/>
 <table id="myTableId" ddl:table="true" ddl:url="@{/clientes}">
    <thead>
       <tr>
          <th ddl:property="telefone">Telefone</th>
          <th ddl:property="nome">Nome</th>
       </tr>
    </thead>
 </table>
</body>
</html>

我认为没有调用蒲公英的servlet。不处理名称空间。

Answer 1

有几个错误。其中大部分与我第一次使用蒲公英数据表时所做的相同。 :)

我正在为下面的每个代码编写完整的简单示例，以供将来任何人参考。因此，请确保只将缺少的添加到项目中

首先将这两个依赖项添加到您的 maven 中。（你已经有了第一个。所以添加后面的。）

<dependency>
    <groupId>com.github.dandelion</groupId>
    <artifactId>datatables-thymeleaf</artifactId>
    <version>0.10.1</version>
</dependency>
<dependency>
    <groupId>com.github.dandelion</groupId>
    <artifactId>datatables-spring3</artifactId>
    <version>0.10.1</version>
</dependency>

然后添加这些配置。您必须为方言创建 Bean。我想你错过了..

@Configuration
public class DandelionConfig {

    @Bean
    public DandelionDialect dandelionDialect() {
        return new DandelionDialect();
    }

    @Bean
    public DataTablesDialect dataTablesDialect(){
        return new DataTablesDialect();
    }

    @Bean
    public Filter dandelionFilter() {
        return new DandelionFilter();
    }

    @Bean
    public ServletRegistrationBean dandelionServletRegistrationBean() {
        return new ServletRegistrationBean(new DandelionServlet(), "/dandelion-assets/*");
    }
}

视图可以是这样的

<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org"
      xmlns:ddl="http://www.thymeleaf.org/dandelion"
      xmlns:dt="http://www.thymeleaf.org/dandelion/datatables">
<head lang="en"></head>
<body>
    <table id="myTableId"
        dt:table="true"
        dt:url="@{/clientes}"
        dt:serverside="true"
        dt:processing="true">
          <thead>
            <tr>
              <th dt:property="telefone">Telefone</th>
              <th dt:property="nome">Nome</th>
            </tr>
          </thead>
     </table>
</body>
</html>

这里您使用的是服务器端处理。这需要您的控制器在 /clientes 上有一个映射，其中 returns DatatablesResponse

@Override
@RequestMapping(value = "/clientes")
@ResponseBody
public DatatablesResponse<MyObject> data(HttpServletRequest request){
    List<MyObject> myObjectList = ... //logic to fetch a list of objects

    DatatablesCriterias criterias = DatatablesCriterias.getFromRequest(request);
    DataSet<MyObject> dataSet = new DataSet<>(myObjectList, (long)myObjectList.size(), (long)myObjectList.size());
    return DatatablesResponse.build(dataSet, criterias);
}

MyObject 是您传递给蒲公英数据表的对象

public class MyObject {
    private String telefone;
    private String nome;

    public String getTelefone() {
        return telefone;
    }

    public void setTelefone(String telefone) {
        this.telefone = telefone;
    }

    public String getNome() {
        return nome;
    }

    public void setNome(String nome) {
        this.nome = nome;
    }
}

Spring Boot + Thymeleaf + Dandelion 配置不起作用

Spring Boot + Thymeleaf + Dandelion configuration not working

java

spring

spring-boot

thymeleaf

dandelion