SpringBoot String 转 Date 异常

通过表单提交发送请求，后台用一个对象接收，类似String,int,Long这样的都能正常接收，一旦有日期类型的(Date)的，无法正常接收，甚至连方法也没有进入，给人一种没有提交到后台的错觉，

其实并非没有提交到后台，只是在处理的时候，String转换Date转换失败，此时需要手动转换。

解决

import org.apache.commons.lang3.StringUtils;
import org.springframework.core.convert.converter.Converter;
import java.text.SimpleDateFormat;
import java.util.Date;

@Configuartion
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.isBlank(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));

    }
}

原文 https://www.cnblogs.com/snowstorm/p/8073389.html