Register custom converter:<\/p>\n
When use Spring And then, Register custom converter: When use Spring <mvc:annotation-driven\/>, Spring will automatically initialize some MVC usefull bean @See WebMvcConfigurerComposite. It contains : @Bean\u2028public FormattingConversionService mvcConversionService() {\u2028 FormattingConversionService conversionService = new DefaultFormattingConversionService();\u2028 addFormatters(conversionService);\u2028 return conversionService;\u2028} And then, <mvc:annotation-driven conversion-service="mvcConversionService" \/> and we can you it: \/**\u2028 * @author van.yzt\u2028 * @date 2017\/08\/29\u2028 *\/\u2028@Configuration\u2028@EnableWebMvc\u2028public class WebConfig extends WebMvcConfigurerAdapter {\u2028\u2028 … <\/p>\n<mvc:annotation-driven\/><\/code>, Spring will automatically initialize some MVC usefull bean @See WebMvcConfigurerComposite<\/code>. It contains :<\/p>\n@Bean\u2028public FormattingConversionService mvcConversionService() {\u2028 FormattingConversionService conversionService = new DefaultFormattingConversionService();\u2028 addFormatters(conversionService);\u2028 return conversionService;\u2028}\n<\/code><\/pre>\n<mvc:annotation-driven conversion-service="mvcConversionService" \/><\/code> and we can you it:<\/p>\n\/**\u2028 * @author van.yzt\u2028 * @date 2017\/08\/29\u2028 *\/\u2028@Configuration\u2028@EnableWebMvc\u2028public class WebConfig extends WebMvcConfigurerAdapter {\u2028\u2028 @Override\u2028 public void addFormatters(FormatterRegistry registry) {\u2028 registry.addConverter(new StringToAccessLevelEnum());\u2028 super.addFormatters(registry);\u2028 }\u2028\u2028 final class StringToAccessLevelEnum implements Converter<String, AccessLevelEnum> {\u2028 @Override\u2028 public AccessLevelEnum convert(String source) {\u2028 return AccessLevelEnum.fromValue(Integer.parseInt(source));\u2028 }\u2028 }\u2028}\n\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"