SpringBoot添加时间格式化器

爱被打了一巴掌 2021-12-04 08:59 256阅读 0赞

\#\#1. 编写时间转换器类

import java.text.DateFormat;
    import java.text.ParseException;
    import java.text.SimpleDateFormat;
    import java.util.ArrayList;
    import java.util.Date;
    import java.util.List;
    
    import org.springframework.core.convert.converter.Converter;
    import org.springframework.util.StringUtils;
    
    public class CustomDateConverter implements Converter<String, Date> {
    
    	private static final List<String> formarts = new ArrayList<String>();
    
    	static {
    		formarts.add("yyyy-MM");
    		formarts.add("yyyy-MM-dd");
    		formarts.add("yyyy-MM-dd hh:mm");
    		formarts.add("yyyy-MM-dd hh:mm:ss");
    
    		formarts.add("yyyy/MM");
    		formarts.add("yyyy/MM/dd");
    		formarts.add("yyyy/MM/dd hh:mm");
    		formarts.add("yyyy/MM/dd hh:mm:ss");
    
    		formarts.add("yyyy.MM");
    		formarts.add("yyyy.MM.dd");
    		formarts.add("yyyy.MM.dd hh:mm");
    		formarts.add("yyyy.MM.dd hh:mm:ss");
    	}
    
    	@Override
    	public Date convert(String source) {
    		String value = (source == null) ? "" : source.trim();
    		if (StringUtils.isEmpty(value)) {
    			return null;
    		}
    		Date result = null;
    		for (String format : formarts) {
    			try {
    				result = parseDate(value, format);
    			} catch (ParseException e) {
    			}
    		}
    
    		if (result == null) {
    			throw new IllegalArgumentException("Invalid date value \"" + source + "\"");
    		}
    		return result;
    	}
    
    	private Date parseDate(String dateStr,
    			String format) throws ParseException {
    		DateFormat dateFormat = new SimpleDateFormat(format);
    		return (Date) dateFormat.parse(dateStr);
    	}
    
    }

\#\#2. 在@Configuration配置类中添加如下代码

@Override
    	public void addFormatters(FormatterRegistry registry) {
    		registry.addConverter(new CustomDateConverter());
    		super.addFormatters(registry);
    	}