• springboot date接收参数


    使用springboot框架对日期类型进行操作,遇到无法保持的情况,一开始报400的错误(解决方法),解决之后日期类型无法保存到数据库,为了解决这个问题,设置了个全局date转换器。

    配置方法

    1、新增一个转换类

    新增一个string转换成date的类,实现Converter接口,代码如下:

    import java.text.SimpleDateFormat;
    import java.util.Date;
    
    import org.springframework.core.convert.converter.Converter;
    import org.springframework.util.StringUtils;
    
    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 fail", value));
            }
            throw new RuntimeException(String.format("parser %s to Date fail", value));
        }
    
    
    }
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    2、注册转换器

    新增一个类,配置为Configuration,把第一步新增的类注册为转换器,代码如下:

    import javax.annotation.PostConstruct;
    
    
    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;
    
    @Configuration
    public class WebConfigBeans {
    
        @Autowired
        private RequestMappingHandlerAdapter handlerAdapter;
    
        /**
         * 增加字符串转日期的功能
         */
    
        @PostConstruct
        public void initEditableAvlidation() {
    
            ConfigurableWebBindingInitializer initializer = (ConfigurableWebBindingInitializer)handlerAdapter.getWebBindingInitializer();
            if(initializer.getConversionService()!=null) {
                GenericConversionService genericConversionService = (GenericConversionService)initializer.getConversionService();           
    
                genericConversionService.addConverter(new StringToDateConverter());
    
            }
    
        }
    
    }
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  • 原文地址:https://www.cnblogs.com/wirr/p/9522561.html
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