汇率数据类型修改

src/main/java/com/example/demo/domain/entity/Rate.java

@@ -4,8 +4,10 @@ import com.fasterxml.jackson.annotation.JsonFormat;
 import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import lombok.Data;
 import lombok.NoArgsConstructor;
+import org.apache.poi.hpsf.Decimal;
 
 import java.io.Serializable;
+import java.math.BigDecimal;
 import java.util.Date;
 
 @Data
@@ -16,7 +18,7 @@ public class Rate implements Serializable {
 
     private Integer id; // 汇率id
     private String rateName; // 汇率名称
-    private Integer num; // 汇率比例
+    private BigDecimal num; // 汇率比例
     private Integer adminId; // 用户（修改人）id
 
     @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", timezone = "Asia/Shanghai")