From 054fd7546f90c7875b6477f807c19f49dc0eb40c Mon Sep 17 00:00:00 2001
From: RuoYi <yzz_ivy@163.com>
Date: Tue, 21 Dec 2021 13:41:40 +0800
Subject: [PATCH] SQL工具类新增检查关键字方法
---
ruoyi-common/ruoyi-common-core/src/main/java/com/ruoyi/common/core/utils/poi/ExcelUtil.java | 363 ++++++++++++++++++++++++++++++++++-----------------
1 files changed, 242 insertions(+), 121 deletions(-)
diff --git a/ruoyi-common/ruoyi-common-core/src/main/java/com/ruoyi/common/core/utils/poi/ExcelUtil.java b/ruoyi-common/ruoyi-common-core/src/main/java/com/ruoyi/common/core/utils/poi/ExcelUtil.java
index f754a2c..f7e33a6 100644
--- a/ruoyi-common/ruoyi-common-core/src/main/java/com/ruoyi/common/core/utils/poi/ExcelUtil.java
+++ b/ruoyi-common/ruoyi-common-core/src/main/java/com/ruoyi/common/core/utils/poi/ExcelUtil.java
@@ -2,8 +2,8 @@
import java.io.IOException;
import java.io.InputStream;
-import java.io.OutputStream;
import java.lang.reflect.Field;
+import java.lang.reflect.Method;
import java.math.BigDecimal;
import java.text.DecimalFormat;
import java.util.ArrayList;
@@ -35,7 +35,9 @@
import org.apache.poi.ss.usermodel.VerticalAlignment;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.ss.usermodel.WorkbookFactory;
+import org.apache.poi.ss.util.CellRangeAddress;
import org.apache.poi.ss.util.CellRangeAddressList;
+import org.apache.poi.util.IOUtils;
import org.apache.poi.xssf.streaming.SXSSFWorkbook;
import org.apache.poi.xssf.usermodel.XSSFClientAnchor;
import org.apache.poi.xssf.usermodel.XSSFDataValidation;
@@ -102,6 +104,16 @@
private List<Object[]> fields;
/**
+ * 当前行号
+ */
+ private int rownum;
+
+ /**
+ * 标题
+ */
+ private String title;
+
+ /**
* 最大高度
*/
private short maxHeight;
@@ -126,7 +138,7 @@
this.clazz = clazz;
}
- public void init(List<T> list, String sheetName, Type type)
+ public void init(List<T> list, String sheetName, String title, Type type)
{
if (list == null)
{
@@ -135,8 +147,27 @@
this.list = list;
this.sheetName = sheetName;
this.type = type;
+ this.title = title;
createExcelField();
createWorkbook();
+ createTitle();
+ }
+
+ /**
+ * 创建excel第一行标题
+ */
+ public void createTitle()
+ {
+ if (StringUtils.isNotEmpty(title))
+ {
+ Row titleRow = sheet.createRow(rownum == 0 ? rownum++ : 0);
+ titleRow.setHeightInPoints(30);
+ Cell titleCell = titleRow.createCell(0);
+ titleCell.setCellStyle(styles.get("title"));
+ titleCell.setCellValue(title);
+ sheet.addMergedRegion(new CellRangeAddress(titleRow.getRowNum(), titleRow.getRowNum(), titleRow.getRowNum(),
+ this.fields.size() - 1));
+ }
}
/**
@@ -147,46 +178,50 @@
*/
public List<T> importExcel(InputStream is) throws Exception
{
- return importExcel(StringUtils.EMPTY, is);
+ return importExcel(is, 0);
+ }
+
+ /**
+ * 对excel表单默认第一个索引名转换成list
+ *
+ * @param is 输入流
+ * @param titleNum 标题占用行数
+ * @return 转换后集合
+ */
+ public List<T> importExcel(InputStream is, int titleNum) throws Exception
+ {
+ return importExcel(StringUtils.EMPTY, is, titleNum);
}
/**
* 对excel表单指定表格索引名转换成list
*
* @param sheetName 表格索引名
+ * @param titleNum 标题占用行数
* @param is 输入流
* @return 转换后集合
*/
- public List<T> importExcel(String sheetName, InputStream is) throws Exception
+ public List<T> importExcel(String sheetName, InputStream is, int titleNum) throws Exception
{
this.type = Type.IMPORT;
this.wb = WorkbookFactory.create(is);
List<T> list = new ArrayList<T>();
- Sheet sheet = null;
- if (StringUtils.isNotEmpty(sheetName))
- {
- // 如果指定sheet名,则取指定sheet中的内容.
- sheet = wb.getSheet(sheetName);
- }
- else
- {
- // 如果传入的sheet名不存在则默认指向第1个sheet.
- sheet = wb.getSheetAt(0);
- }
-
+ // 如果指定sheet名,则取指定sheet中的内容 否则默认指向第1个sheet
+ Sheet sheet = StringUtils.isNotEmpty(sheetName) ? wb.getSheet(sheetName) : wb.getSheetAt(0);
if (sheet == null)
{
throw new IOException("文件sheet不存在");
}
- int rows = sheet.getPhysicalNumberOfRows();
+ // 获取最后一个非空行的行下标，比如总行数为n，则返回的为n-1
+ int rows = sheet.getLastRowNum();
if (rows > 0)
{
// 定义一个map用于存放excel列的序号和field.
Map<String, Integer> cellMap = new HashMap<String, Integer>();
// 获取表头
- Row heard = sheet.getRow(0);
+ Row heard = sheet.getRow(titleNum);
for (int i = 0; i < heard.getPhysicalNumberOfCells(); i++)
{
Cell cell = heard.getCell(i);
@@ -201,37 +236,36 @@
}
}
// 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<Integer, Field> fieldsMap = new HashMap<Integer, Field>();
- for (int col = 0; col < allFields.length; col++)
+ List<Object[]> fields = this.getFields();
+ Map<Integer, Object[]> fieldsMap = new HashMap<Integer, Object[]>();
+ 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 = 1; i < rows; i++)
+ for (int i = titleNum + 1; i <= rows; i++)
{
// 从第2行开始取数据,默认第一行是表头.
Row row = sheet.getRow(i);
+ // 判断当前行是否是空行
+ if (isRowEmpty(row))
+ {
+ continue;
+ }
T entity = null;
- for (Map.Entry<Integer, Field> entry : fieldsMap.entrySet())
+ for (Map.Entry<Integer, Object[]> 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)
@@ -291,7 +325,6 @@
}
if (StringUtils.isNotNull(fieldType))
{
- Excel attr = field.getAnnotation(Excel.class);
String propertyName = field.getName();
if (StringUtils.isNotEmpty(attr.targetAttr()))
{
@@ -300,6 +333,10 @@
else if (StringUtils.isNotEmpty(attr.readConverterExp()))
{
val = reverseByExp(Convert.toStr(val), attr.readConverterExp(), attr.separator());
+ }
+ else if (!attr.handler().equals(ExcelHandlerAdapter.class))
+ {
+ val = dataFormatHandlerAdapter(val, attr);
}
ReflectUtils.invokeSetter(entity, propertyName, val);
}
@@ -319,12 +356,27 @@
* @return 结果
* @throws IOException
*/
- public void exportExcel(HttpServletResponse response, List<T> list, String sheetName) throws IOException
+ public void exportExcel(HttpServletResponse response, List<T> list, String sheetName)
{
- response.setContentType("application/vnd.ms-excel");
+ exportExcel(response, list, sheetName, StringUtils.EMPTY);
+ }
+
+ /**
+ * 对list数据源将其里面的数据导入到excel表单
+ *
+ * @param response 返回数据
+ * @param list 导出数据集合
+ * @param sheetName 工作表的名称
+ * @param title 标题
+ * @return 结果
+ * @throws IOException
+ */
+ public void exportExcel(HttpServletResponse response, List<T> list, String sheetName, String title)
+ {
+ response.setContentType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet");
response.setCharacterEncoding("utf-8");
- this.init(list, sheetName, Type.EXPORT);
- exportExcel(response.getOutputStream());
+ this.init(list, sheetName, title, Type.EXPORT);
+ exportExcel(response);
}
/**
@@ -333,12 +385,30 @@
* @param sheetName 工作表的名称
* @return 结果
*/
- public void importTemplateExcel(HttpServletResponse response, String sheetName) throws IOException
+ /**
+ * 对list数据源将其里面的数据导入到excel表单
+ *
+ * @param sheetName 工作表的名称
+ * @return 结果
+ */
+ public void importTemplateExcel(HttpServletResponse response, String sheetName)
{
- response.setContentType("application/vnd.ms-excel");
+ importTemplateExcel(response, sheetName, StringUtils.EMPTY);
+ }
+
+ /**
+ * 对list数据源将其里面的数据导入到excel表单
+ *
+ * @param sheetName 工作表的名称
+ * @param title 标题
+ * @return 结果
+ */
+ public void importTemplateExcel(HttpServletResponse response, String sheetName, String title)
+ {
+ response.setContentType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet");
response.setCharacterEncoding("utf-8");
- this.init(null, sheetName, Type.IMPORT);
- exportExcel(response.getOutputStream());
+ this.init(null, sheetName, title, Type.IMPORT);
+ exportExcel(response);
}
/**
@@ -346,32 +416,12 @@
*
* @return 结果
*/
- public void exportExcel(OutputStream outputStream)
+ public void exportExcel(HttpServletResponse response)
{
try
{
- // 取出一共有多少个sheet.
- double sheetNo = Math.ceil(list.size() / sheetSize);
- for (int index = 0; index <= sheetNo; index++)
- {
- createSheet(sheetNo, index);
-
- // 产生一行
- Row row = sheet.createRow(0);
- int column = 0;
- // 写入各个字段的列头名称
- for (Object[] os : fields)
- {
- Excel excel = (Excel) os[1];
- this.createCell(excel, row, column++);
- }
- if (Type.EXPORT.equals(type))
- {
- fillExcelData(index, row);
- addStatisticsRow();
- }
- }
- wb.write(outputStream);
+ writeSheet();
+ wb.write(response.getOutputStream());
}
catch (Exception e)
{
@@ -379,27 +429,34 @@
}
finally
{
- if (wb != null)
+ IOUtils.closeQuietly(wb);
+ }
+ }
+
+ /**
+ * 创建写入数据到Sheet
+ */
+ public void writeSheet()
+ {
+ // 取出一共有多少个sheet.
+ int sheetNo = Math.max(1, (int) Math.ceil(list.size() * 1.0 / sheetSize));
+ for (int index = 0; index < sheetNo; index++)
+ {
+ createSheet(sheetNo, index);
+
+ // 产生一行
+ Row row = sheet.createRow(rownum);
+ int column = 0;
+ // 写入各个字段的列头名称
+ for (Object[] os : fields)
{
- try
- {
- wb.close();
- }
- catch (IOException e1)
- {
- e1.printStackTrace();
- }
+ Excel excel = (Excel) os[1];
+ this.createCell(excel, row, column++);
}
- if (outputStream != null)
+ if (Type.EXPORT.equals(type))
{
- try
- {
- outputStream.close();
- }
- catch (IOException e1)
- {
- e1.printStackTrace();
- }
+ fillExcelData(index, row);
+ addStatisticsRow();
}
}
}
@@ -416,7 +473,7 @@
int endNo = Math.min(startNo + sheetSize, list.size());
for (int i = startNo; i < endNo; i++)
{
- row = sheet.createRow(i + 1 - startNo);
+ row = sheet.createRow(i + 1 + rownum - startNo);
// 得到导出对象.
T vo = (T) list.get(i);
int column = 0;
@@ -424,8 +481,6 @@
{
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++);
}
}
@@ -442,6 +497,16 @@
// 写入各条记录,每条记录对应excel表中的一行
Map<String, CellStyle> styles = new HashMap<String, CellStyle>();
CellStyle style = wb.createCellStyle();
+ style.setAlignment(HorizontalAlignment.CENTER);
+ style.setVerticalAlignment(VerticalAlignment.CENTER);
+ Font titleFont = wb.createFont();
+ titleFont.setFontName("Arial");
+ titleFont.setFontHeightInPoints((short) 16);
+ titleFont.setBold(true);
+ style.setFont(titleFont);
+ styles.put("title", style);
+
+ style = wb.createCellStyle();
style.setAlignment(HorizontalAlignment.CENTER);
style.setVerticalAlignment(VerticalAlignment.CENTER);
style.setBorderRight(BorderStyle.THIN);
@@ -471,7 +536,7 @@
headerFont.setColor(IndexedColors.WHITE.getIndex());
style.setFont(headerFont);
styles.put("header", style);
-
+
style = wb.createCellStyle();
style.setAlignment(HorizontalAlignment.CENTER);
style.setVerticalAlignment(VerticalAlignment.CENTER);
@@ -528,12 +593,14 @@
}
else if (ColumnType.NUMERIC == attr.cellType())
{
- cell.setCellValue(StringUtils.contains(Convert.toStr(value), ".") ? Convert.toDouble(value) : Convert.toInt(value));
+ if (StringUtils.isNotNull(value))
+ {
+ cell.setCellValue(StringUtils.contains(Convert.toStr(value), ".") ? Convert.toDouble(value) : Convert.toInt(value));
+ }
}
else if (ColumnType.IMAGE == attr.cellType())
{
- ClientAnchor anchor = new XSSFClientAnchor(0, 0, 0, 0, (short) cell.getColumnIndex(), cell.getRow().getRowNum(), (short) (cell.getColumnIndex() + 1),
- cell.getRow().getRowNum() + 1);
+ ClientAnchor anchor = new XSSFClientAnchor(0, 0, 0, 0, (short) cell.getColumnIndex(), cell.getRow().getRowNum(), (short) (cell.getColumnIndex() + 1), cell.getRow().getRowNum() + 1);
String imagePath = Convert.toStr(value);
if (StringUtils.isNotEmpty(imagePath))
{
@@ -543,7 +610,7 @@
}
}
}
-
+
/**
* 获取画布
*/
@@ -635,6 +702,10 @@
else if (value instanceof BigDecimal && -1 != attr.scale())
{
cell.setCellValue((((BigDecimal) value).setScale(attr.scale(), attr.roundingMode())).toString());
+ }
+ else if (!attr.handler().equals(ExcelHandlerAdapter.class))
+ {
+ cell.setCellValue(dataFormatHandlerAdapter(value, attr));
}
else
{
@@ -783,6 +854,28 @@
}
/**
+ * 数据处理器
+ *
+ * @param value 数据值
+ * @param excel 数据注解
+ * @return
+ */
+ public String dataFormatHandlerAdapter(Object value, Excel excel)
+ {
+ try
+ {
+ Object instance = excel.handler().newInstance();
+ Method formatMethod = excel.handler().getMethod("format", new Class[] { Object.class, String[].class });
+ value = formatMethod.invoke(instance, value, excel.args());
+ }
+ catch (Exception e)
+ {
+ log.error("不能格式化数据 " + excel.handler(), e.getMessage());
+ }
+ return Convert.toStr(value);
+ }
+
+ /**
* 合计统计信息
*/
private void addStatisticsData(Integer index, String text, Excel entity)
@@ -812,10 +905,9 @@
{
if (statistics.size() > 0)
{
- Cell cell = null;
Row row = sheet.createRow(sheet.getLastRowNum() + 1);
Set<Integer> keys = statistics.keySet();
- cell = row.createCell(0);
+ Cell cell = row.createCell(0);
cell.setCellStyle(styles.get("total"));
cell.setCellValue("合计");
@@ -885,7 +977,17 @@
*/
private void createExcelField()
{
- this.fields = new ArrayList<Object[]>();
+ 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<Object[]> getFields()
+ {
+ List<Object[]> fields = new ArrayList<Object[]>();
List<Field> tempFields = new ArrayList<>();
tempFields.addAll(Arrays.asList(clazz.getSuperclass().getDeclaredFields()));
tempFields.addAll(Arrays.asList(clazz.getDeclaredFields()));
@@ -894,7 +996,12 @@
// 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
@@ -902,16 +1009,19 @@
{
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;
}
-
+
/**
* 根据注解获取最大行高
*/
@@ -927,22 +1037,14 @@
}
/**
- * 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
*/
public void createWorkbook()
{
this.wb = new SXSSFWorkbook(500);
+ this.sheet = wb.createSheet();
+ wb.setSheetName(0, sheetName);
+ this.styles = createStyles(wb);
}
/**
@@ -951,17 +1053,13 @@
* @param sheetNo sheet数量
* @param index 序号
*/
- public void createSheet(double sheetNo, int index)
+ public void createSheet(int sheetNo, int index)
{
- this.sheet = wb.createSheet();
- this.styles = createStyles(wb);
// 设置工作表的名称.
- if (sheetNo == 0)
+ if (sheetNo > 1 && index > 0)
{
- wb.setSheetName(index, sheetName);
- }
- else
- {
+ this.sheet = wb.createSheet();
+ this.createTitle();
wb.setSheetName(index, sheetName + index);
}
}
@@ -1025,4 +1123,27 @@
}
return val;
}
+
+ /**
+ * 判断是否是空行
+ *
+ * @param row 判断的行
+ * @return
+ */
+ private boolean isRowEmpty(Row row)
+ {
+ if (row == null)
+ {
+ return true;
+ }
+ for (int i = row.getFirstCellNum(); i < row.getLastCellNum(); i++)
+ {
+ Cell cell = row.getCell(i);
+ if (cell != null && cell.getCellType() != CellType.BLANK)
+ {
+ return false;
+ }
+ }
+ return true;
+ }
}
\ No newline at end of file
--
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