springboot form表单中直接传递 Date类型

最新推荐文章于 2023-07-12 20:00:00 发布

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本文介绍了一个实用的日期字符串转换工具类及其配置方法。该工具能够将多种格式的日期字符串（如yyyy-MM-dd HH:mm:ss）转换为Java Date对象，适用于不同应用场景。同时，通过Spring配置实现了该转换器在Web应用中的全局注册。

2步操作
1 创建 utils — StringToDateConverter

public class StringToDateConverter implements Converter<String,Date> {
    private static final String dateFormat = "yyyy-MM-dd HH:mm:ss";
    private static final String shortDateFormat = "yyyy-MM-dd";
    private static final String dateFormat2 = "yyyy/MM/dd HH:mm:ss";
    private static final String shortDateFormat2 = "yyyy/MM/dd";
    @Override
    public Date convert(String source) {
        if (StringUtils.isEmpty(source)) {
            return null;
        }
        source = source.trim();
        try {
            SimpleDateFormat formatter;
            if (source.contains("-")) {
                if (source.contains(":")) {
                    formatter = new SimpleDateFormat(dateFormat);
                } else {
                    formatter = new SimpleDateFormat(shortDateFormat);
                }
                Date dtDate = formatter.parse(source);
                return dtDate;
            } else if (source.contains("/")) {
                if (source.contains(":")) {
                    formatter = new SimpleDateFormat(dateFormat2);
                } else {
                    formatter = new SimpleDateFormat(shortDateFormat2);
                }
                Date dtDate = formatter.parse(source);
                return dtDate;
            }
        } catch (Exception e) {
            throw new RuntimeException(String.format("parser %s to Date fail", source));
        }

        throw new RuntimeException(String.format("parser %s to Date fail", source));

    }
}

2 创建 config – webConfigBeans

@Configuration
public class WebConfigBeans {

    @Autowired
    RequestMappingHandlerAdapter requestMappingHandlerAdapter;

    @PostConstruct
    public void initEditableValidation(){
       ConfigurableWebBindingInitializer configurableWebBindingInitializer = (ConfigurableWebBindingInitializer) requestMappingHandlerAdapter.getWebBindingInitializer();
        if(configurableWebBindingInitializer.getConversionService()!=null){
            GenericConversionService service = (GenericConversionService) configurableWebBindingInitializer.getConversionService();
            service.addConverter(new StringToDateConverter());
        }
    }
}