From d6c49b915f9428ce4f5da88e73b8c13fbe2f71eb Mon Sep 17 00:00:00 2001
From: Liang <le_yiang@163.com>
Date: Mon, 6 Mar 2023 03:59:59 +0000
Subject: [PATCH] =?UTF-8?q?!295=20=E6=96=B0=E5=A2=9EEasyExcel=E6=9E=9A?=
 =?UTF-8?q?=E4=B8=BE=E7=B1=BB=E6=95=B0=E6=8D=AE=E7=BF=BB=E8=AF=91=E6=B3=A8?=
 =?UTF-8?q?=E8=A7=A3=20*=20Merge=20remote-tracking=20branch=20'origin/dev'?=
 =?UTF-8?q?=20into=20dev=20*=20=E5=88=A9=E7=94=A8ReflectUtil=E5=8F=8D?=
 =?UTF-8?q?=E5=B0=84=E5=B7=A5=E5=85=B7=E7=B1=BB=E8=8E=B7=E5=8F=96Enum?=
 =?UTF-8?q?=E5=B1=9E=E6=80=A7=20*=20=E5=88=A9=E7=94=A8ReflectUtil=E5=8F=8D?=
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 =?UTF-8?q?=E5=B1=9E=E6=80=A7=20*=20=E6=96=B0=E5=A2=9EEasyExcel=E6=9E=9A?=
 =?UTF-8?q?=E4=B8=BE=E7=B1=BB=E6=95=B0=E6=8D=AE=E7=BF=BB=E8=AF=91=E6=B3=A8?=
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---
 .../common/annotation/ExcelEnumFormat.java    | 30 ++++++++
 .../common/convert/ExcelEnumConvert.java      | 75 +++++++++++++++++++
 2 files changed, 105 insertions(+)
 create mode 100644 ruoyi-common/src/main/java/com/ruoyi/common/annotation/ExcelEnumFormat.java
 create mode 100644 ruoyi-common/src/main/java/com/ruoyi/common/convert/ExcelEnumConvert.java

diff --git a/ruoyi-common/src/main/java/com/ruoyi/common/annotation/ExcelEnumFormat.java b/ruoyi-common/src/main/java/com/ruoyi/common/annotation/ExcelEnumFormat.java
new file mode 100644
index 000000000..a8f550a4a
--- /dev/null
+++ b/ruoyi-common/src/main/java/com/ruoyi/common/annotation/ExcelEnumFormat.java
@@ -0,0 +1,30 @@
+package com.ruoyi.common.annotation;
+
+import java.lang.annotation.*;
+
+/**
+ * 枚举格式化
+ *
+ * @author Liang
+ */
+@Target({ElementType.FIELD})
+@Retention(RetentionPolicy.RUNTIME)
+@Inherited
+public @interface ExcelEnumFormat {
+
+    /**
+     * 字典枚举类型
+     */
+    Class<? extends Enum<?>> enumClass();
+
+    /**
+     * 字典枚举类中对应的code属性名称，默认为code
+     */
+    String codeField() default "code";
+
+    /**
+     * 字典枚举类中对应的text属性名称，默认为text
+     */
+    String textField() default "text";
+
+}
diff --git a/ruoyi-common/src/main/java/com/ruoyi/common/convert/ExcelEnumConvert.java b/ruoyi-common/src/main/java/com/ruoyi/common/convert/ExcelEnumConvert.java
new file mode 100644
index 000000000..c69d90cfb
--- /dev/null
+++ b/ruoyi-common/src/main/java/com/ruoyi/common/convert/ExcelEnumConvert.java
@@ -0,0 +1,75 @@
+package com.ruoyi.common.convert;
+
+import cn.hutool.core.annotation.AnnotationUtil;
+import cn.hutool.core.convert.Convert;
+import cn.hutool.core.util.ObjectUtil;
+import com.alibaba.excel.converters.Converter;
+import com.alibaba.excel.enums.CellDataTypeEnum;
+import com.alibaba.excel.metadata.GlobalConfiguration;
+import com.alibaba.excel.metadata.data.ReadCellData;
+import com.alibaba.excel.metadata.data.WriteCellData;
+import com.alibaba.excel.metadata.property.ExcelContentProperty;
+import com.ruoyi.common.annotation.ExcelEnumFormat;
+import com.ruoyi.common.utils.reflect.ReflectUtils;
+import lombok.extern.slf4j.Slf4j;
+
+import java.lang.reflect.Field;
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * 枚举格式化转换处理
+ *
+ * @author Liang
+ */
+@Slf4j
+public class ExcelEnumConvert implements Converter<Object> {
+
+    @Override
+    public Class<Object> supportJavaTypeKey() {
+        return Object.class;
+    }
+
+    @Override
+    public CellDataTypeEnum supportExcelTypeKey() {
+        return null;
+    }
+
+    @Override
+    public Object convertToJavaData(ReadCellData<?> cellData, ExcelContentProperty contentProperty, GlobalConfiguration globalConfiguration) {
+        Object codeValue = cellData.getData();
+        // 如果是空值
+        if (ObjectUtil.isNull(codeValue)) {
+            return null;
+        }
+        Map<Object, String> enumValueMap = beforeConvert(contentProperty);
+        String textValue = enumValueMap.get(codeValue);
+        return Convert.convert(contentProperty.getField().getType(), textValue);
+    }
+
+    @Override
+    public WriteCellData<String> convertToExcelData(Object object, ExcelContentProperty contentProperty, GlobalConfiguration globalConfiguration) {
+        if (ObjectUtil.isNull(object)) {
+            return new WriteCellData<>("");
+        }
+        Map<Object, String> enumValueMap = beforeConvert(contentProperty);
+        String value = Convert.toStr(enumValueMap.get(object), "");
+        return new WriteCellData<>(value);
+    }
+
+    private Map<Object, String> beforeConvert(ExcelContentProperty contentProperty) {
+        ExcelEnumFormat anno = getAnnotation(contentProperty.getField());
+        Map<Object, String> enumValueMap = new HashMap<>();
+        Enum<?>[] enumConstants = anno.enumClass().getEnumConstants();
+        for (Enum<?> enumConstant : enumConstants) {
+            Object codeValue = ReflectUtils.invokeGetter(enumConstant, anno.codeField());
+            String textValue = ReflectUtils.invokeGetter(enumConstant, anno.textField());
+            enumValueMap.put(codeValue, textValue);
+        }
+        return enumValueMap;
+    }
+
+    private ExcelEnumFormat getAnnotation(Field field) {
+        return AnnotationUtil.getAnnotation(field, ExcelEnumFormat.class);
+    }
+}