| 提交 | 用户 | 时间 | ||
| e7c126 | 1 | package com.iailab.framework.jackson.core.databind; |
| H | 2 | |
| 3 | import com.fasterxml.jackson.core.JsonGenerator; | |
| 4 | import com.fasterxml.jackson.databind.SerializerProvider; | |
| 5 | import com.fasterxml.jackson.databind.annotation.JacksonStdImpl; | |
| 6 | ||
| 7 | import java.io.IOException; | |
| 8 | ||
| 9 | /** | |
| 10 | * Long 序列化规则 | |
| 11 | * | |
| 12 | * 会将超长 long 值转换为 string，解决前端 JavaScript 最大安全整数是 2^53-1 的问题 | |
| 13 | * | |
| 14 | * @author 星语 | |
| 15 | */ | |
| 16 | @JacksonStdImpl | |
| 17 | public class NumberSerializer extends com.fasterxml.jackson.databind.ser.std.NumberSerializer { | |
| 18 | ||
| 19 | private static final long MAX_SAFE_INTEGER = 9007199254740991L; | |
| 20 | private static final long MIN_SAFE_INTEGER = -9007199254740991L; | |
| 21 | ||
| 22 | public static final NumberSerializer INSTANCE = new NumberSerializer(Number.class); | |
| 23 | ||
| 24 | public NumberSerializer(Class<? extends Number> rawType) { | |
| 25 | super(rawType); | |
| 26 | } | |
| 27 | ||
| 28 | @Override | |
| 29 | public void serialize(Number value, JsonGenerator gen, SerializerProvider serializers) throws IOException { | |
| 30 | // 超出范围 序列化位字符串 | |
| 31 | if (value.longValue() > MIN_SAFE_INTEGER && value.longValue() < MAX_SAFE_INTEGER) { | |
| 32 | super.serialize(value, gen, serializers); | |
| 33 | } else { | |
| 34 | gen.writeString(value.toString()); | |
| 35 | } | |
| 36 | } | |
| 37 | } | |
