panqihua
/
ttsbg-java-api
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Excel注解支持导入导出标题信息

Browse Source
master
RuoYi 3 years ago
parent 7479ff4b06
commit 30c89b33fe
1 changed files with 126 additions and 22 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Show Stats Download Patch File Download Diff File
  1. 148
      ruoyi-common/src/main/java/com/ruoyi/common/utils/poi/ExcelUtil.java

148
ruoyi-common/src/main/java/com/ruoyi/common/utils/poi/ExcelUtil.java
Unescape View File

@ -47,6 +47,7 @@ import org.apache.poi.ss.usermodel.Sheet;
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;
@ -125,6 +126,16 @@ public class ExcelUtil<T>
*/
private List<Object[]> fields;
/**
* 当前行号
*/
private int rownum;
/**
* 标题
*/
private String title;
/**
* 最大高度
*/
@ -150,7 +161,7 @@ public class ExcelUtil<T>
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)
{
@ -159,8 +170,27 @@ public class ExcelUtil<T>
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));
}
}
/**
@ -171,17 +201,30 @@ public class ExcelUtil<T>
*/
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);
@ -210,7 +253,7 @@ public class ExcelUtil<T>
// 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);
@ -243,7 +286,7 @@ public class ExcelUtil<T>
}
}
}
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);
@ -369,7 +412,20 @@ public class ExcelUtil<T>
*/
public AjaxResult exportExcel(List<T> list, String sheetName)
{
this.init(list, sheetName, Type.EXPORT);
return exportExcel(list, sheetName, StringUtils.EMPTY);
}
/**
* 对list数据源将其里面的数据导入到excel表单
*
* @param list 导出数据集合
* @param sheetName 工作表的名称
* @param title 标题
* @return 结果
*/
public AjaxResult exportExcel(List<T> list, String sheetName, String title)
{
this.init(list, sheetName, title, Type.EXPORT);
return exportExcel();
}
@ -382,11 +438,26 @@ public class ExcelUtil<T>
* @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)throws IOException
{
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) throws IOException
{
response.setContentType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet");
response.setCharacterEncoding("utf-8");
this.init(list, sheetName, Type.EXPORT);
this.init(list, sheetName, title, Type.EXPORT);
exportExcel(response.getOutputStream());
}
@ -398,7 +469,19 @@ public class ExcelUtil<T>
*/
public AjaxResult importTemplateExcel(String sheetName)
{
this.init(null, sheetName, Type.IMPORT);
return importTemplateExcel(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 AjaxResult importTemplateExcel(String sheetName, String title)
{
this.init(null, sheetName, title, Type.IMPORT);
return exportExcel();
}
@ -409,10 +492,22 @@ public class ExcelUtil<T>
* @return 结果
*/
public void importTemplateExcel(HttpServletResponse response, String sheetName) throws IOException
{
importTemplateExcel(response, sheetName);
}
/**
* 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) throws IOException
{
response.setContentType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet");
response.setCharacterEncoding("utf-8");
this.init(null, sheetName, Type.IMPORT);
this.init(null, sheetName, title, Type.IMPORT);
exportExcel(response.getOutputStream());
}
@ -473,13 +568,13 @@ public class ExcelUtil<T>
public void writeSheet()
{
// 取出一共有多少个sheet.
double sheetNo = Math.ceil(list.size() / sheetSize);
for (int index = 0; index <= sheetNo; index++)
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(0);
Row row = sheet.createRow(rownum);
int column = 0;
// 写入各个字段的列头名称
for (Object[] os : fields)
@ -507,7 +602,7 @@ public class ExcelUtil<T>
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;
@ -535,6 +630,16 @@ public class ExcelUtil<T>
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);
style.setRightBorderColor(IndexedColors.GREY_50_PERCENT.getIndex());
style.setBorderLeft(BorderStyle.THIN);
@ -1117,6 +1222,9 @@ public class ExcelUtil<T>
public void createWorkbook()
{
this.wb = new SXSSFWorkbook(500);
this.sheet = wb.createSheet();
wb.setSheetName(0, sheetName);
this.styles = createStyles(wb);
}
/**
@ -1125,17 +1233,13 @@ public class ExcelUtil<T>
* @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)
{
wb.setSheetName(index, sheetName);
}
else
if (sheetNo > 1 && index > 0)
{
this.sheet = wb.createSheet();
this.createTitle();
wb.setSheetName(index, sheetName + index);
}
}

Write Preview
Loading…
Cancel
Save