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src/main/java/com/xjhs/findmemerchant/common/jackson/JsonLong.java

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+package com.xjhs.findmemerchant.common.jackson;
+
+import com.fasterxml.jackson.annotation.JacksonAnnotationsInside;
+import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
+
+import java.lang.annotation.*;
+
+@Target({ElementType.FIELD, ElementType.METHOD, ElementType.PARAMETER})
+@Retention(RetentionPolicy.RUNTIME)
+@Documented
+@JacksonAnnotationsInside
+@JsonDeserialize(using = SafeLongDeserializer.class)
+public @interface JsonDeserializeToLong {
+}

src/main/java/com/xjhs/findmemerchant/common/jackson/SafeLongDeserializer.java

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+package com.xjhs.findmemerchant.common.jackson;
+
+public class SafeLongDeserializer {
+}