21 changed files with 281 additions and 57 deletions
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package com.mh.user.config; |
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import com.fasterxml.jackson.core.JsonGenerator; |
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import com.fasterxml.jackson.core.JsonParser; |
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import com.fasterxml.jackson.databind.DeserializationContext; |
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import com.fasterxml.jackson.databind.DeserializationFeature; |
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import com.fasterxml.jackson.databind.JsonDeserializer; |
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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.JavaTimeModule; |
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import com.mh.user.model.MyBigDecimalDeserializer; |
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import org.springframework.context.annotation.Bean; |
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import org.springframework.context.annotation.Configuration; |
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import java.io.IOException; |
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import java.math.BigDecimal; |
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/** |
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* @author LJF |
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* @version 1.0 |
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* @project CHWS |
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* @description 避免使用科学计数算法 |
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* @date 2026-01-07 14:37:11 |
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*/ |
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@Configuration |
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public class MyJacksonConfig { |
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@Bean("customObjectMapper") |
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public ObjectMapper customObjectMapper() { |
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ObjectMapper mapper = new ObjectMapper(); |
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// 注册 JavaTimeModule
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mapper.registerModule(new JavaTimeModule()); |
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// 启用 BigDecimal 作为普通格式输出（避免科学计数法）
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mapper.enable(JsonGenerator.Feature.WRITE_BIGDECIMAL_AS_PLAIN); |
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// 注册自定义反序列化器
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SimpleModule module = new SimpleModule(); |
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module.addDeserializer(BigDecimal.class, new MyBigDecimalDeserializer()); |
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mapper.registerModule(module); |
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// 启用 BigDecimal 处理浮点数
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mapper.enable(DeserializationFeature.USE_BIG_DECIMAL_FOR_FLOATS); |
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return mapper; |
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} |
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} |
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@ -0,0 +1,34 @@
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package com.mh.user.model; |
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import com.fasterxml.jackson.core.JsonParser; |
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import com.fasterxml.jackson.databind.DeserializationContext; |
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import com.fasterxml.jackson.databind.JsonDeserializer; |
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import java.io.IOException; |
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import java.math.BigDecimal; |
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/** |
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* @author LJF |
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* @version 1.0 |
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* @project CHWS |
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* @description 格式化 |
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* @date 2026-01-07 14:20:36 |
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*/ |
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public class MyBigDecimalDeserializer extends JsonDeserializer<BigDecimal> { |
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@Override |
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public BigDecimal deserialize(JsonParser p, DeserializationContext ctxt) throws IOException { |
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String value = p.getValueAsString(); |
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if (value == null || value.trim().isEmpty()) { |
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return BigDecimal.ZERO; |
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} |
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try { |
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// 直接使用字符串构造BigDecimal，能正确处理科学计数法
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return new BigDecimal(value); |
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} catch (NumberFormatException e) { |
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// 如果转换失败，返回0
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return BigDecimal.ZERO; |
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} |
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} |
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} |
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@ -0,0 +1,33 @@
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package com.mh.user.model; |
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import com.fasterxml.jackson.databind.annotation.JsonDeserialize; |
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import lombok.Data; |
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import java.math.BigDecimal; |
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/** |
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* @author LJF |
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* @version 1.0 |
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* @project EEMCS |
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* @description 三石峰数据体 |
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* @date 2025-01-22 14:47:25 |
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*/ |
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@Data |
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public class SanShiFengStrDatas { |
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/** |
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* 对应研华的标签值 |
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*/ |
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private String name; |
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/** |
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* 上报值 |
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*/ |
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// 使用自定义反序列化器处理科学计数法
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private String value; |
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// /**
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// * 质量值
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// */
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// private T quality;
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} |
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