springboot Date解析String类型的参数

1.首先建立String to Date 的解析实现

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

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";

    @Override
    public Date convert(String value) {

        if (StringUtils.isEmpty(value)) {
            return null;
        }

        value = value.trim();

        try {
            if (value.contains("-")) {
                SimpleDateFormat formatter;
                if (value.contains(":")) {
                    formatter = new SimpleDateFormat(dateFormat);
                } else {
                    formatter = new SimpleDateFormat(shortDateFormat);
                }

                Date dtDate = formatter.parse(value);
                return dtDate;
            } else if (value.matches("^\\d+$")) {
                Long lDate = new Long(value);
                return new Date(lDate);
            }
        } catch (Exception e) {
            throw new RuntimeException(String.format("parser %s to Date failed", value));
        }
        throw new RuntimeException(String.format("parser %s to Date failed", value));
    }


}

2.创建全局的解析配置

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.convert.support.GenericConversionService;
import org.springframework.web.bind.support.ConfigurableWebBindingInitializer;
import org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter;
import javax.annotation.PostConstruct;

@Configuration
public class DateHandlerAdapter {

    @Autowired
    private RequestMappingHandlerAdapter handlerAdapter;

    /**
     * 增加字符串转日期的全局适配器
     */

    @PostConstruct
    public void initEditableAvlidation() {

        ConfigurableWebBindingInitializer initializer = (ConfigurableWebBindingInitializer) handlerAdapter
                .getWebBindingInitializer();
        if (initializer.getConversionService() != null) {
            GenericConversionService genericConversionService = (GenericConversionService) initializer
                    .getConversionService();

            genericConversionService.addConverter(new StringToDateConverter());

        }

    }

}

添加完这两个文件以后 在传参数类型为Date的参数时就不会再报 date解析失败的错误了。

推荐阅读更多精彩内容