Excel导入导出支持注解写到构造上

common/src/main/java/com/jeesite/common/utils/excel/ExcelExport.java

@@ -8,6 +8,7 @@ import java.io.FileNotFoundException;
 import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.OutputStream;
+import java.lang.reflect.Constructor;
 import java.lang.reflect.Field;
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
@@ -202,6 +203,16 @@ public class ExcelExport implements Closeable{
 	 */
 	public void createSheet(String sheetName, String title, Class<?> cls, Type type, String... groups){
 		this.annotationList = ListUtils.newArrayList();
+		// Get constructor annotation
+		Constructor<?>[] cs = cls.getConstructors();
+		for (Constructor<?> c : cs) {
+			ExcelFields efs = c.getAnnotation(ExcelFields.class);
+			if (efs != null && efs.value() != null){
+				for (ExcelField ef : efs.value()){
+					addAnnotation(annotationList, ef, c, type, groups);
+				}
+			}
+		}
 		// Get annotation field
 		Field[] fs = cls.getDeclaredFields();
 		for (Field f : fs){

common/src/main/java/com/jeesite/common/utils/excel/ExcelImport.java

@@ -8,6 +8,7 @@ import java.io.File;
 import java.io.FileInputStream;
 import java.io.IOException;
 import java.io.InputStream;
+import java.lang.reflect.Constructor;
 import java.lang.reflect.Field;
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
@@ -354,6 +355,16 @@ public class ExcelImport implements Closeable {
 	@SuppressWarnings("unchecked")
 	public <E> List<E> getDataList(Class<E> cls, MethodCallback exceptionCallback, String... groups) throws Exception{
 		List<Object[]> annotationList = ListUtils.newArrayList();
+		// Get constructor annotation
+		Constructor<?>[] cs = cls.getConstructors();
+		for (Constructor<?> c : cs) {
+			ExcelFields efs = c.getAnnotation(ExcelFields.class);
+			if (efs != null && efs.value() != null){
+				for (ExcelField ef : efs.value()){
+					addAnnotation(annotationList, ef, c, Type.IMPORT, groups);
+				}
+			}
+		}
 		// Get annotation field 
 		Field[] fs = cls.getDeclaredFields();
 		for (Field f : fs){

common/src/main/java/com/jeesite/common/utils/excel/annotation/ExcelField.java

@@ -15,7 +15,7 @@ import com.jeesite.common.utils.excel.fieldtype.FieldType;
  * @author ThinkGem
  * @version 2020-3-5
  */
-@Target({ElementType.METHOD, ElementType.FIELD, ElementType.TYPE})
+@Target({ElementType.METHOD, ElementType.FIELD})
 @Retention(RetentionPolicy.RUNTIME)
 public @interface ExcelField {
 

common/src/main/java/com/jeesite/common/utils/excel/annotation/ExcelFields.java

@@ -13,7 +13,7 @@ import java.lang.annotation.Target;
  * @author ThinkGem
  * @version 2016-11-9
  */
-@Target({ElementType.METHOD, ElementType.FIELD, ElementType.TYPE})
+@Target({ElementType.METHOD, ElementType.FIELD, ElementType.CONSTRUCTOR})
 @Retention(RetentionPolicy.RUNTIME)
 public @interface ExcelFields {