48 lines
2.6 KiB
Java
48 lines
2.6 KiB
Java
package com.sky.common.json;
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import com.fasterxml.jackson.databind.ObjectMapper;
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import com.fasterxml.jackson.databind.module.SimpleModule;
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import com.fasterxml.jackson.datatype.jsr310.deser.LocalDateDeserializer;
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import com.fasterxml.jackson.datatype.jsr310.deser.LocalDateTimeDeserializer;
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import com.fasterxml.jackson.datatype.jsr310.deser.LocalTimeDeserializer;
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import com.fasterxml.jackson.datatype.jsr310.ser.LocalDateSerializer;
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import com.fasterxml.jackson.datatype.jsr310.ser.LocalDateTimeSerializer;
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import com.fasterxml.jackson.datatype.jsr310.ser.LocalTimeSerializer;
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import java.time.LocalDate;
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import java.time.LocalDateTime;
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import java.time.LocalTime;
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import java.time.format.DateTimeFormatter;
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import static com.fasterxml.jackson.databind.DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES;
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/**
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* 对象映射器，基于Jackson将Java对象转为JSON，或者将JSON转为Java对象
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* 将JSON转为Java对象过程--JSON反序列化Java对象
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* 将Java对象转为JSON--序列化Java对象到JSON
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*/
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public class JacksonObjectMapper extends ObjectMapper {
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public static final String DEFAULT_DATE_FORMAT = "yyyy-MM-dd";
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// public static final String DEFAULT_DATE_TIME_FORMAT = "yyyy-MM-dd HH:mm:ss";
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public static final String DEFAULT_DATE_TIME_FORMAT = "yyyy-MM-dd HH:mm";
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public static final String DEFAULT_TIME_FORMAT = "HH:mm:ss";
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public JacksonObjectMapper() {
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super();
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// 收到未知属性时不报异常
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this.configure(FAIL_ON_UNKNOWN_PROPERTIES, false);
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// 反序列化时，属性不存在的兼容处理
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this.getDeserializationConfig().withoutFeatures(FAIL_ON_UNKNOWN_PROPERTIES);
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SimpleModule simpleModule = new SimpleModule();
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simpleModule.addDeserializer(LocalDateTime.class, new LocalDateTimeDeserializer(DateTimeFormatter.ofPattern(DEFAULT_DATE_TIME_FORMAT)))
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.addDeserializer(LocalDate.class, new LocalDateDeserializer(DateTimeFormatter.ofPattern(DEFAULT_DATE_FORMAT)))
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.addDeserializer(LocalTime.class, new LocalTimeDeserializer(DateTimeFormatter.ofPattern(DEFAULT_TIME_FORMAT)))
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.addSerializer(LocalDateTime.class, new LocalDateTimeSerializer(DateTimeFormatter.ofPattern(DEFAULT_DATE_TIME_FORMAT)))
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.addSerializer(LocalDate.class, new LocalDateSerializer(DateTimeFormatter.ofPattern(DEFAULT_DATE_FORMAT)))
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.addSerializer(LocalTime.class, new LocalTimeSerializer(DateTimeFormatter.ofPattern(DEFAULT_TIME_FORMAT)));
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// 注册功能模块 例如，可以添加自定义序列化器和反序列化器
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this.registerModule(simpleModule);
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}
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}
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