网站的验证码怎么做,深圳网站建设有免费的吗,安卓开发平台,珠海做网站需要多少钱客户端传日期格式字段#xff08;string#xff09;,服务端接口使用java.util.Date类型接收报错问题 问题演示第1种#xff1a;客户端以URL拼接的方式传值第2种#xff1a;客户端以body中的form-data方式提交第3种 客户端以Body中的json方式提交 问题解决#xff08;全局解… 客户端传日期格式字段string,服务端接口使用java.util.Date类型接收报错问题 问题演示第1种客户端以URL拼接的方式传值第2种客户端以body中的form-data方式提交第3种 客户端以Body中的json方式提交 问题解决全局解决方式针对 第1和第2种情况解决办法验证 针对第3中情况解决办法验证 问题演示
演示代码
服务端接口代码 PostMapping(/binder)ResponseBodypublic String binderTest(TestEntity te) {return te.getBirthDay().toString() ;}以上接口中的实体TestEntity
import java.util.Date;import org.springframework.format.annotation.DateTimeFormat;import com.fasterxml.jackson.annotation.JsonFormat;import lombok.Data;Data
public class TestEntity {private String name;private String addr;private Date birthDay;
}TestEntity中的字段birthDay为Date类型
客户端演示使用PostMan
第1种客户端以URL拼接的方式传值 后台报错
Field error in object testEntity on field birthDay: rejected value [2024-02-09 22:22:33]; codes
[typeMismatch.testEntity.birthDay,typeMismatch.birthDay,typeMismatch.java.util.Date,typeMismatch];
arguments [org.springframework.context.support.DefaultMessageSourceResolvable: codes
[testEntity.birthDay,birthDay]; arguments []; default message [birthDay]]; default message [Failed to convert
property value of type java.lang.String to required type java.util.Date for property birthDay; nested exception
is org.springframework.core.convert.ConversionFailedException: Failed to convert from type [java.lang.String]
to type [java.util.Date] for value 2024-02-09 22:22:33; nested exception is
java.lang.IllegalArgumentException]]第2种客户端以body中的form-data方式提交 后台报错
Field error in object testEntity on field birthDay: rejected value [2024-02-07]; codes
[typeMismatch.testEntity.birthDay,typeMismatch.birthDay,typeMismatch.java.util.Date,typeMismatch];
arguments [org.springframework.context.support.DefaultMessageSourceResolvable: codes
[testEntity.birthDay,birthDay]; arguments []; default message [birthDay]]; default message [Failed to convert
property value of type java.lang.String to required type java.util.Date for property birthDay; nested exception
is org.springframework.core.convert.ConversionFailedException: Failed to convert from type [java.lang.String]
to type [java.util.Date] for value 2024-02-07; nested exception is java.lang.IllegalArgumentException]]第3种 客户端以Body中的json方式提交
这里需要先在接口中添加注解RequestBody,接口变成如下: PostMapping(/binder)ResponseBodypublic String binderTest(RequestBody TestEntity te) {return te.getBirthDay().toString() ;}以上日期格式是 yyyy-MM-dd 2024-06-08,可以成功! 但是将格式变成yyyy-MM-dd HH:mm:ss,就不行了见如下
后台报错
JSON parse error: Cannot deserialize value of type java.util.Date from String 2024-06-08 22:11:33: not a
valid representation (error: Failed to parse Date value 2024-06-08 22:11:33: Cannot parse date 2024-06-08
22:11:33: while it seems to fit format yyyy-MM-ddTHH:mm:ss.SSSX, parsing fails (leniency? null)); nested
exception is com.fasterxml.jackson.databind.exc.InvalidFormatException: Cannot deserialize value of type
java.util.Date from String 2024-06-08 22:11:33: not a valid representation (error: Failed to parse Date value
2024-06-08 22:11:33: Cannot parse date 2024-06-08 22:11:33: while it seems to fit format yyyy-MM-
ddTHH:mm:ss.SSSX, parsing fails (leniency? null))at [Source: (PushbackInputStream); line: 2, column: 16] (through reference chain: 问题解决全局解决方式
针对 第1和第2种情况
解决办法
新增日期转换类并将其纳入到spring的bean管理中:
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;import org.springframework.core.convert.converter.Converter;/*** 日期格式转换类* * 仅针对当客户端是以下两种方式日期格式值的转换* * 1.url地址拼接的方式形如localhost:8031/binder?birthDay2024-02-09 22:22:33。* * 2.body方式中的form-data方式* * 注意与DateJacksonConverter类区别。* * author Administrator*/
public class MyDateConverter implements ConverterString, Date {// TODO 2024年4月12日16:01:01// 完善—日期格式有多种这里只列举了一种根据传入的String格式日期分别初始化SimpleDateFormat还有如下格式需要处理//private static String[] pattern new String[] { yyyy-MM-dd, yyyy-MM-dd HH:mm, yyyy-MM-dd HH:mm:ss,// yyyy-MM-dd HH:mm:ss.S, yyyy.MM.dd, yyyy.MM.dd HH:mm, yyyy.MM.dd HH:mm:ss, yyyy.MM.dd HH:mm:ss.S,// yyyy/MM/dd, yyyy/MM/dd HH:mm, yyyy/MM/dd HH:mm:ss, yyyy/MM/dd HH:mm:ss.S };SimpleDateFormat sdf new SimpleDateFormat(yyyy-MM-dd HH:mm:ss);Overridepublic Date convert(String s) {Date date null;try {date sdf.parse(s);} catch (ParseException e) {throw new RuntimeException(e);}return date;}
}import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.converter.json.Jackson2ObjectMapperFactoryBean;
import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;import com.fasterxml.jackson.databind.ObjectMapper;/*** 配置数据绑定* * author Administrator**/
Configuration
public class MyConfigurableWebBindingInitializer {/*** 仅针对当客户端是以下两种方式日期格式值的转换* 1.url地址拼接的方式形如localhost:8031/binder?birthDay2024-02-09 22:22:33。* 2.body方式中的form-data方式* * return*/Beanpublic MyDateConverter myDateConverter() {return new MyDateConverter();}
}
验证 均成功
针对第3中情况
解决办法
同样新增日期转换类并将其纳入到spring的bean管理中:
import java.io.IOException;
import java.text.ParseException;
import java.util.Date;import org.apache.commons.lang.StringUtils;
import org.apache.commons.lang3.time.DateUtils;import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.JsonDeserializer;/*** 日期格式转化类* * 针对客户端传值方式为 body中的json方式* * 注意与MyDateConverter类区别。* * author Administrator* * https://www.jianshu.com/p/c97a20fc9a35**/
public class DateJacksonConverter extends JsonDeserializerDate {private static String[] pattern new String[] { yyyy-MM-dd, yyyy-MM-dd HH:mm, yyyy-MM-dd HH:mm:ss,yyyy-MM-dd HH:mm:ss.S, yyyy.MM.dd, yyyy.MM.dd HH:mm, yyyy.MM.dd HH:mm:ss, yyyy.MM.dd HH:mm:ss.S,yyyy/MM/dd, yyyy/MM/dd HH:mm, yyyy/MM/dd HH:mm:ss, yyyy/MM/dd HH:mm:ss.S };Overridepublic Date deserialize(JsonParser p, DeserializationContext ctxt) throws IOException, JsonProcessingException {Date targetDate null;String originDate p.getText();if (StringUtils.isNotEmpty(originDate)) {try {long longDate Long.valueOf(originDate.trim());targetDate new Date(longDate);} catch (NumberFormatException e) {try {targetDate DateUtils.parseDate(originDate, DateJacksonConverter.pattern);} catch (ParseException pe) {throw new IOException(String.format(%s can not convert to type java.util.Date,just support timestamp(type of long) and following date format(%s),originDate, StringUtils.join(pattern, ,)));}}}return targetDate;}Overridepublic Class? handledType() {return Date.class;}
} import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.converter.json.Jackson2ObjectMapperFactoryBean;
import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;import com.fasterxml.jackson.databind.ObjectMapper;/*** 配置数据绑定* * author Administrator**/
Configuration
public class MyConfigurableWebBindingInitializer {/*** 仅针对当客户端是以下两种方式日期格式值的转换* 1.url地址拼接的方式形如localhost:8031/binder?birthDay2024-02-09 22:22:33。* 2.body方式中的form-data方式* * return*/Beanpublic MyDateConverter myDateConverter() {return new MyDateConverter();}// 针对客户端传值方式为 body中的json方式对日期格式进行转换开始Beanpublic DateJacksonConverter dateJacksonConverter() {return new DateJacksonConverter();}Beanpublic Jackson2ObjectMapperFactoryBean jackson2ObjectMapperFactoryBean(Autowired DateJacksonConverter dateJacksonConverter) {Jackson2ObjectMapperFactoryBean jackson2ObjectMapperFactoryBean new Jackson2ObjectMapperFactoryBean();jackson2ObjectMapperFactoryBean.setDeserializers(dateJacksonConverter);return jackson2ObjectMapperFactoryBean;}Beanpublic MappingJackson2HttpMessageConverter mappingJackson2HttpMessageConverter(Autowired ObjectMapper objectMapper) {MappingJackson2HttpMessageConverter mappingJackson2HttpMessageConverter new MappingJackson2HttpMessageConverter();mappingJackson2HttpMessageConverter.setObjectMapper(objectMapper);return mappingJackson2HttpMessageConverter;}// 针对客户端传值方式为 body中的json方式结束}
验证
需给接口加上RequestBody注解略。 成功
