Question

@Entity
    public class SeedStarter {
    ...
        private List<SeedStarterFeature> features;

    ...

在支持表单的bean中，我希望功能将通过用户选择的ID自动映射

在模板中

    <!-- seed starter type -->
    <div>
        <label>Type</label>
        <select th:field="*{seedStarterType}">
            <option th:each="ftype: ${allTypes}" th:text="${ftype.name}" th:value="${ftype.typeId}"></option>
        </select>
    </div>

也是支票

<h3 th:text="${#conversions.convert('5', 'io.dreamitpossible.seedstartermanager.model.SeedStarterFeature')}"></h3>

和转换服务

@Component
public class SeedStarterFeatureFormatter implements Formatter<SeedStarterFeature> {
    @Autowired
    private SeedStarterFeatureService seedStarterFeatureService;

    @Override
    public SeedStarterFeature parse(String text, Locale locale) throws ParseException {
        SeedStarterFeature match = null;
        try{
            Integer featureId = Integer.valueOf(text);
            match = seedStarterFeatureService.selectAllById(featureId);
        } catch (NumberFormatException exp){
        }
        return match;
    }

    @Override
    public String print(SeedStarterFeature object, Locale locale) {
        return object.toString();
    }
}

@EnableWebMvc
@Configuration
@EnableTransactionManagement
@ComponentScan("io.dreamitpossible.seedstartermanager")
public class WebMvcConfiguration extends WebMvcConfigurerAdapter {
...

    @Override
    public void addFormatters(FormatterRegistry registry) {
        registry.addFormatter(seedStarterFeatureFormatter());
    }
    @Bean
    public SeedStarterFeatureFormatter seedStarterFeatureFormatter(){
        return new SeedStarterFeatureFormatter();
    }

...
}

我也尝试了XML配置，但是没有用正如我对POST方法的功能ID所看到的那样，它通过其构造函数而不使用转换器或格式化程序来构建SeedStarterFeature ...

作为示例： ID 5和6 =））

features = [SeedStarterFeature {featureId = 0，name ='5'}，SeedStarterFeature {featureId = 0，name ='6'}

我怎么了？

我使用spring4

转换服务在百里香模板中不起作用？

0 个答案: