网站被挂马 301,亚马逊雨林动物,网站正在建设中9797,网站开发开题报告关键问题文章目录 1.自定义反序列化器2.配置类与自定义 ObjectMapper客户端 需求#xff1a;OpenFeign配置自定义decode#xff0c;解析http请求返回的时间字符串 1.自定义反序列化器
Date 自定义反序列化器
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.j… 文章目录 1.自定义反序列化器2.配置类与自定义 ObjectMapper客户端 需求OpenFeign配置自定义decode解析http请求返回的时间字符串 1.自定义反序列化器
Date 自定义反序列化器
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.JsonDeserializer;import java.io.IOException;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Arrays;
import java.util.Date;
import java.util.List;public class MultiFormatDateDeserializer extends JsonDeserializerDate {private static final ListString FORMATS Arrays.asList(yyyy-MM-dd HH:mm:ss,yyyy-MM-ddTHH:mm:ss,yyyy-MM-dd,MM/dd/yyyy,dd-MM-yyyy);Overridepublic Date deserialize(JsonParser parser, DeserializationContext context) throws IOException {String dateString parser.getText();for (String format : FORMATS) {try {return new SimpleDateFormat(format).parse(dateString);} catch (ParseException ignored) {// 尝试下一个格式}}System.err.println(Unparseable date: dateString);throw new IOException(Unparseable date: dateString);}
}LocalDate 自定义反序列化器
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.JsonDeserializer;import java.io.IOException;
import java.time.LocalDate;
import java.time.format.DateTimeFormatter;
import java.util.Arrays;
import java.util.List;public class MultiFormatLocalDateDeserializer extends JsonDeserializerLocalDate {private static final ListDateTimeFormatter FORMATTERS Arrays.asList(DateTimeFormatter.ISO_LOCAL_DATE, DateTimeFormatter.ofPattern(MM/dd/yyyy), DateTimeFormatter.ofPattern(dd-MM-yyyy), DateTimeFormatter.ofPattern(yyyy-MM-dd HH:mm:ss) );Overridepublic LocalDate deserialize(JsonParser parser, DeserializationContext context) throws IOException {String dateString parser.getText();for (DateTimeFormatter formatter : FORMATTERS) {try {return LocalDate.parse(dateString, formatter);} catch (Exception ignored) {// 尝试下一个格式}}throw new IOException(Unparseable date: dateString);}
}LocalDateTime 自定义反序列化器
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.JsonDeserializer;import java.io.IOException;
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;
import java.util.Arrays;
import java.util.List;public class MultiFormatLocalDateTimeDeserializer extends JsonDeserializerLocalDateTime {private static final ListDateTimeFormatter FORMATTERS Arrays.asList(DateTimeFormatter.ISO_LOCAL_DATE_TIME, // yyyy-MM-ddTHH:mm:ssDateTimeFormatter.ISO_LOCAL_DATE, // yyyy-MM-ddDateTimeFormatter.ofPattern(MM/dd/yyyy HH:mm a), DateTimeFormatter.ofPattern(yyyy-MM-dd HH:mm:ss) );Overridepublic LocalDateTime deserialize(JsonParser parser, DeserializationContext context) throws IOException {String dateString parser.getText();for (DateTimeFormatter formatter : FORMATTERS) {try {return LocalDateTime.parse(dateString, formatter);} catch (Exception ignored) {// 尝试下一个格式}}throw new IOException(Unparseable date: dateString);}
}2.配置类与自定义 ObjectMapper
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
import feign.Logger;
import feign.codec.Decoder;
import feign.codec.Encoder;
import feign.jackson.JacksonDecoder;
import feign.jackson.JacksonEncoder;
import org.apache.kafka.common.utils.Java;
import org.springframework.context.annotation.Bean;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.util.Date;/*** p** /p** author pengapeng* since 2024-12-13*/
public class CustomFeignConfig {Beanpublic ObjectMapper customObjectMapper() {ObjectMapper objectMapper new ObjectMapper();// 注册 Java 时间模块JavaTimeModule javaTimeModule new JavaTimeModule();// 注册自定义反序列化器javaTimeModule.addDeserializer(LocalDateTime.class, new MultiFormatLocalDateTimeDeserializer());javaTimeModule.addDeserializer(LocalDate.class, new MultiFormatLocalDateDeserializer());javaTimeModule.addDeserializer(Date.class, new MultiFormatDateDeserializer());objectMapper.registerModule(javaTimeModule);return objectMapper;}Beanpublic Decoder feignDecoder() {ObjectMapper customObjectMapper customObjectMapper();System.out.println(Using Custom Decoder with ObjectMapper: customObjectMapper);return new JacksonDecoder(customObjectMapper);}Beanpublic Encoder feignEncoder() {ObjectMapper customObjectMapper customObjectMapper();System.out.println(Using Custom Encoder with ObjectMapper: customObjectMapper);return new JacksonEncoder(customObjectMapper);}BeanLogger.Level feignLoggerLevel() {return Logger.Level.FULL;}
}
注意添加feign.jackson的依赖选择合适的版本不匹配可能发生错误。 dependencygroupIdio.github.openfeign/groupIdartifactIdfeign-jackson/artifactIdversion10.4.0/version/dependency客户端
FeignClient(url http://localhost:8088/, name test-feign-client,configuration CustomFeignConfig.class)
public interface TestFeignClient {GetMapping(/votecms/test/testFeign)TestDO testFeign();
}测试所用的TestDO类为
Data
public class TestDO {private String name;private Integer age;private Long id;private Date createTime1;private Date createTime2;private LocalDateTime updateTime;
}测试时所用版本SpringBoot 2.3.12.RELEASE、SpringCloud 2.2.1.RELEASE
