From eb4376b649a0f8783e8f70406a438ad3c61b8f12 Mon Sep 17 00:00:00 2001 From: RuoYi Date: Sun, 10 Oct 2021 14:30:08 +0800 Subject: [PATCH] =?UTF-8?q?Excel=E5=AF=BC=E5=85=A5=E6=94=AF=E6=8C=81@Excel?= =?UTF-8?q?s=E6=B3=A8=E8=A7=A3?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .../com/ruoyi/common/utils/poi/ExcelUtil.java | 70 +++++++++---------- 1 file changed, 34 insertions(+), 36 deletions(-) diff --git a/ruoyi-common/src/main/java/com/ruoyi/common/utils/poi/ExcelUtil.java b/ruoyi-common/src/main/java/com/ruoyi/common/utils/poi/ExcelUtil.java index fa95291..4169360 100644 --- a/ruoyi-common/src/main/java/com/ruoyi/common/utils/poi/ExcelUtil.java +++ b/ruoyi-common/src/main/java/com/ruoyi/common/utils/poi/ExcelUtil.java @@ -268,22 +268,15 @@ public class ExcelUtil } } // 有数据时才处理 得到类的所有field. - Field[] allFields = clazz.getDeclaredFields(); - // 定义一个map用于存放列的序号和field. - Map fieldsMap = new HashMap(); - for (int col = 0; col < allFields.length; col++) + List fields = this.getFields(); + Map fieldsMap = new HashMap(); + for (Object[] objects : fields) { - Field field = allFields[col]; - Excel attr = field.getAnnotation(Excel.class); - if (attr != null && (attr.type() == Type.ALL || attr.type() == type)) + Excel attr = (Excel) objects[1]; + Integer column = cellMap.get(attr.name()); + if (column != null) { - // 设置类的私有字段属性可访问. - field.setAccessible(true); - Integer column = cellMap.get(attr.name()); - if (column != null) - { - fieldsMap.put(column, field); - } + fieldsMap.put(column, objects); } } for (int i = titleNum + 1; i <= rows; i++) @@ -296,14 +289,15 @@ public class ExcelUtil continue; } T entity = null; - for (Map.Entry entry : fieldsMap.entrySet()) + for (Map.Entry entry : fieldsMap.entrySet()) { Object val = this.getCellValue(row, entry.getKey()); // 如果不存在实例则新建. entity = (entity == null ? clazz.newInstance() : entity); // 从map中得到对应列的field. - Field field = fieldsMap.get(entry.getKey()); + Field field = (Field) entry.getValue()[0]; + Excel attr = (Excel) entry.getValue()[1]; // 取得类型,并根据对象类型设置值. Class fieldType = field.getType(); if (String.class == fieldType) @@ -363,7 +357,6 @@ public class ExcelUtil } if (StringUtils.isNotNull(fieldType)) { - Excel attr = field.getAnnotation(Excel.class); String propertyName = field.getName(); if (StringUtils.isNotEmpty(attr.targetAttr())) { @@ -610,8 +603,6 @@ public class ExcelUtil { Field field = (Field) os[0]; Excel excel = (Excel) os[1]; - // 设置实体类私有属性可访问 - field.setAccessible(true); this.addCell(excel, row, vo, field, column++); } } @@ -1164,7 +1155,17 @@ public class ExcelUtil */ private void createExcelField() { - this.fields = new ArrayList(); + this.fields = getFields(); + this.fields = this.fields.stream().sorted(Comparator.comparing(objects -> ((Excel) objects[1]).sort())).collect(Collectors.toList()); + this.maxHeight = getRowHeight(); + } + + /** + * 获取字段注解信息 + */ + public List getFields() + { + List fields = new ArrayList(); List tempFields = new ArrayList<>(); tempFields.addAll(Arrays.asList(clazz.getSuperclass().getDeclaredFields())); tempFields.addAll(Arrays.asList(clazz.getDeclaredFields())); @@ -1173,7 +1174,12 @@ public class ExcelUtil // 单注解 if (field.isAnnotationPresent(Excel.class)) { - putToField(field, field.getAnnotation(Excel.class)); + Excel attr = field.getAnnotation(Excel.class); + if (attr != null && (attr.type() == Type.ALL || attr.type() == type)) + { + field.setAccessible(true); + fields.add(new Object[] { field, attr }); + } } // 多注解 @@ -1181,14 +1187,17 @@ public class ExcelUtil { Excels attrs = field.getAnnotation(Excels.class); Excel[] excels = attrs.value(); - for (Excel excel : excels) + for (Excel attr : excels) { - putToField(field, excel); + if (attr != null && (attr.type() == Type.ALL || attr.type() == type)) + { + field.setAccessible(true); + fields.add(new Object[] { field, attr }); + } } } } - this.fields = this.fields.stream().sorted(Comparator.comparing(objects -> ((Excel) objects[1]).sort())).collect(Collectors.toList()); - this.maxHeight = getRowHeight(); + return fields; } /** @@ -1205,17 +1214,6 @@ public class ExcelUtil return (short) (maxHeight * 20); } - /** - * 放到字段集合中 - */ - private void putToField(Field field, Excel attr) - { - if (attr != null && (attr.type() == Type.ALL || attr.type() == type)) - { - this.fields.add(new Object[] { field, attr }); - } - } - /** * 创建一个工作簿 */