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@@ -6,6 +6,7 @@ import java.io.IOException;
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import java.io.InputStream;
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import java.io.OutputStream;
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import java.lang.reflect.Field;
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+import java.lang.reflect.Method;
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import java.math.BigDecimal;
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import java.text.DecimalFormat;
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import java.util.ArrayList;
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@@ -46,6 +47,7 @@ import org.apache.poi.ss.usermodel.Sheet;
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import org.apache.poi.ss.usermodel.VerticalAlignment;
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import org.apache.poi.ss.usermodel.Workbook;
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import org.apache.poi.ss.usermodel.WorkbookFactory;
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+import org.apache.poi.ss.util.CellRangeAddress;
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import org.apache.poi.ss.util.CellRangeAddressList;
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import org.apache.poi.util.IOUtils;
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import org.apache.poi.xssf.streaming.SXSSFWorkbook;
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@@ -124,6 +126,16 @@ public class ExcelUtil<T>
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*/
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private List<Object[]> fields;
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+ /**
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+ * 当前行号
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+ */
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+ private int rownum;
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+
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+ /**
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+ * 标题
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+ */
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+ private String title;
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+
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/**
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* 最大高度
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*/
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@@ -149,7 +161,7 @@ public class ExcelUtil<T>
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this.clazz = clazz;
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}
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- public void init(List<T> list, String sheetName, Type type)
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+ public void init(List<T> list, String sheetName, String title, Type type)
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{
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if (list == null)
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{
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@@ -158,8 +170,27 @@ public class ExcelUtil<T>
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this.list = list;
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this.sheetName = sheetName;
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this.type = type;
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+ this.title = title;
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createExcelField();
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createWorkbook();
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+ createTitle();
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+ }
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+
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+ /**
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+ * 创建excel第一行标题
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+ */
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+ public void createTitle()
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+ {
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+ if (StringUtils.isNotEmpty(title))
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+ {
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+ Row titleRow = sheet.createRow(rownum == 0 ? rownum++ : 0);
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+ titleRow.setHeightInPoints(30);
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+ Cell titleCell = titleRow.createCell(0);
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+ titleCell.setCellStyle(styles.get("title"));
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+ titleCell.setCellValue(title);
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+ sheet.addMergedRegion(new CellRangeAddress(titleRow.getRowNum(), titleRow.getRowNum(), titleRow.getRowNum(),
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+ this.fields.size() - 1));
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+ }
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}
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/**
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@@ -170,17 +201,30 @@ public class ExcelUtil<T>
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*/
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public List<T> importExcel(InputStream is) throws Exception
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{
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- return importExcel(StringUtils.EMPTY, is);
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+ return importExcel(is, 0);
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+ }
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+
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+ /**
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+ * 对excel表单默认第一个索引名转换成list
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+ *
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+ * @param is 输入流
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+ * @param titleNum 标题占用行数
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+ * @return 转换后集合
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+ */
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+ public List<T> importExcel(InputStream is, int titleNum) throws Exception
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+ {
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+ return importExcel(StringUtils.EMPTY, is, titleNum);
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}
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/**
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* 对excel表单指定表格索引名转换成list
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*
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* @param sheetName 表格索引名
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+ * @param titleNum 标题占用行数
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* @param is 输入流
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* @return 转换后集合
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*/
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- public List<T> importExcel(String sheetName, InputStream is) throws Exception
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+ public List<T> importExcel(String sheetName, InputStream is, int titleNum) throws Exception
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{
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this.type = Type.IMPORT;
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this.wb = WorkbookFactory.create(is);
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@@ -209,7 +253,7 @@ public class ExcelUtil<T>
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// 定义一个map用于存放excel列的序号和field.
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Map<String, Integer> cellMap = new HashMap<String, Integer>();
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// 获取表头
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- Row heard = sheet.getRow(0);
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+ Row heard = sheet.getRow(titleNum);
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for (int i = 0; i < heard.getPhysicalNumberOfCells(); i++)
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{
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Cell cell = heard.getCell(i);
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@@ -224,25 +268,18 @@ public class ExcelUtil<T>
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}
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}
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// 有数据时才处理 得到类的所有field.
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- Field[] allFields = clazz.getDeclaredFields();
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- // 定义一个map用于存放列的序号和field.
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- Map<Integer, Field> fieldsMap = new HashMap<Integer, Field>();
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- for (int col = 0; col < allFields.length; col++)
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+ List<Object[]> fields = this.getFields();
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+ Map<Integer, Object[]> fieldsMap = new HashMap<Integer, Object[]>();
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+ for (Object[] objects : fields)
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{
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- Field field = allFields[col];
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- Excel attr = field.getAnnotation(Excel.class);
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- if (attr != null && (attr.type() == Type.ALL || attr.type() == type))
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+ Excel attr = (Excel) objects[1];
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+ Integer column = cellMap.get(attr.name());
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+ if (column != null)
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{
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- // 设置类的私有字段属性可访问.
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- field.setAccessible(true);
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- Integer column = cellMap.get(attr.name());
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- if (column != null)
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- {
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- fieldsMap.put(column, field);
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- }
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+ fieldsMap.put(column, objects);
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}
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}
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- for (int i = 1; i <= rows; i++)
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+ for (int i = titleNum + 1; i <= rows; i++)
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{
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// 从第2行开始取数据,默认第一行是表头.
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Row row = sheet.getRow(i);
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@@ -252,14 +289,15 @@ public class ExcelUtil<T>
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continue;
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}
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T entity = null;
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- for (Map.Entry<Integer, Field> entry : fieldsMap.entrySet())
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+ for (Map.Entry<Integer, Object[]> entry : fieldsMap.entrySet())
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{
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Object val = this.getCellValue(row, entry.getKey());
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// 如果不存在实例则新建.
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entity = (entity == null ? clazz.newInstance() : entity);
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// 从map中得到对应列的field.
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- Field field = fieldsMap.get(entry.getKey());
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+ Field field = (Field) entry.getValue()[0];
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+ Excel attr = (Excel) entry.getValue()[1];
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// 取得类型,并根据对象类型设置值.
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Class<?> fieldType = field.getType();
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if (String.class == fieldType)
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@@ -319,7 +357,6 @@ public class ExcelUtil<T>
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}
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if (StringUtils.isNotNull(fieldType))
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{
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- Excel attr = field.getAnnotation(Excel.class);
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String propertyName = field.getName();
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if (StringUtils.isNotEmpty(attr.targetAttr()))
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{
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@@ -333,6 +370,10 @@ public class ExcelUtil<T>
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{
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val = reverseDictByExp(Convert.toStr(val), attr.dictType(), attr.separator());
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}
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+ else if (!attr.handler().equals(ExcelHandlerAdapter.class))
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+ {
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+ val = dataFormatHandlerAdapter(val, attr);
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+ }
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else if (ColumnType.IMAGE == attr.cellType() && StringUtils.isNotEmpty(pictures))
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{
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PictureData image = pictures.get(row.getRowNum() + "_" + entry.getKey());
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@@ -340,8 +381,11 @@ public class ExcelUtil<T>
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{
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val = "";
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}
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- byte[] data = image.getData();
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- val = FileUtils.writeImportBytes(data);
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+ else
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+ {
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+ byte[] data = image.getData();
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+ val = FileUtils.writeImportBytes(data);
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+ }
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}
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ReflectUtils.invokeSetter(entity, propertyName, val);
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}
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@@ -361,7 +405,20 @@ public class ExcelUtil<T>
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*/
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public AjaxResult exportExcel(List<T> list, String sheetName)
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{
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- this.init(list, sheetName, Type.EXPORT);
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+ return exportExcel(list, sheetName, StringUtils.EMPTY);
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+ }
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+
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+ /**
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+ * 对list数据源将其里面的数据导入到excel表单
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+ *
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+ * @param list 导出数据集合
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+ * @param sheetName 工作表的名称
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+ * @param title 标题
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+ * @return 结果
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+ */
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+ public AjaxResult exportExcel(List<T> list, String sheetName, String title)
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+ {
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+ this.init(list, sheetName, title, Type.EXPORT);
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return exportExcel();
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}
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@@ -374,11 +431,26 @@ public class ExcelUtil<T>
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* @return 结果
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* @throws IOException
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*/
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- public void exportExcel(HttpServletResponse response, List<T> list, String sheetName) throws IOException
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+ public void exportExcel(HttpServletResponse response, List<T> list, String sheetName)throws IOException
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+ {
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+ exportExcel(response, list, sheetName, StringUtils.EMPTY);
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+ }
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+
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+ /**
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+ * 对list数据源将其里面的数据导入到excel表单
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+ *
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+ * @param response 返回数据
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+ * @param list 导出数据集合
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+ * @param sheetName 工作表的名称
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+ * @param title 标题
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+ * @return 结果
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+ * @throws IOException
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+ */
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+ public void exportExcel(HttpServletResponse response, List<T> list, String sheetName, String title) throws IOException
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{
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response.setContentType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet");
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response.setCharacterEncoding("utf-8");
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- this.init(list, sheetName, Type.EXPORT);
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+ this.init(list, sheetName, title, Type.EXPORT);
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exportExcel(response.getOutputStream());
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}
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@@ -390,7 +462,19 @@ public class ExcelUtil<T>
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*/
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public AjaxResult importTemplateExcel(String sheetName)
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{
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- this.init(null, sheetName, Type.IMPORT);
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+ return importTemplateExcel(sheetName, StringUtils.EMPTY);
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+ }
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+
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+ /**
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+ * 对list数据源将其里面的数据导入到excel表单
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+ *
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+ * @param sheetName 工作表的名称
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+ * @param title 标题
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+ * @return 结果
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+ */
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+ public AjaxResult importTemplateExcel(String sheetName, String title)
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+ {
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+ this.init(null, sheetName, title, Type.IMPORT);
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return exportExcel();
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}
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@@ -401,10 +485,22 @@ public class ExcelUtil<T>
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* @return 结果
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*/
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public void importTemplateExcel(HttpServletResponse response, String sheetName) throws IOException
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+ {
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+ importTemplateExcel(response, sheetName, StringUtils.EMPTY);
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+ }
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+
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+ /**
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+ * 对list数据源将其里面的数据导入到excel表单
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+ *
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+ * @param sheetName 工作表的名称
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+ * @param title 标题
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+ * @return 结果
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+ */
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+ public void importTemplateExcel(HttpServletResponse response, String sheetName, String title) throws IOException
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{
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response.setContentType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet");
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response.setCharacterEncoding("utf-8");
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- this.init(null, sheetName, Type.IMPORT);
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+ this.init(null, sheetName, title, Type.IMPORT);
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exportExcel(response.getOutputStream());
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}
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@@ -465,13 +561,13 @@ public class ExcelUtil<T>
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public void writeSheet()
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{
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// 取出一共有多少个sheet.
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- double sheetNo = Math.ceil(list.size() / sheetSize);
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- for (int index = 0; index <= sheetNo; index++)
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+ int sheetNo = Math.max(1, (int) Math.ceil(list.size() * 1.0 / sheetSize));
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+ for (int index = 0; index < sheetNo; index++)
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{
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createSheet(sheetNo, index);
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// 产生一行
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- Row row = sheet.createRow(0);
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+ Row row = sheet.createRow(rownum);
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int column = 0;
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// 写入各个字段的列头名称
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for (Object[] os : fields)
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@@ -499,7 +595,7 @@ public class ExcelUtil<T>
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int endNo = Math.min(startNo + sheetSize, list.size());
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for (int i = startNo; i < endNo; i++)
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{
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- row = sheet.createRow(i + 1 - startNo);
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+ row = sheet.createRow(i + 1 + rownum - startNo);
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// 得到导出对象.
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T vo = (T) list.get(i);
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int column = 0;
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@@ -507,8 +603,6 @@ public class ExcelUtil<T>
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{
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Field field = (Field) os[0];
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Excel excel = (Excel) os[1];
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- // 设置实体类私有属性可访问
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- field.setAccessible(true);
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this.addCell(excel, row, vo, field, column++);
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}
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}
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@@ -527,6 +621,16 @@ public class ExcelUtil<T>
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CellStyle style = wb.createCellStyle();
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style.setAlignment(HorizontalAlignment.CENTER);
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style.setVerticalAlignment(VerticalAlignment.CENTER);
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+ Font titleFont = wb.createFont();
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+ titleFont.setFontName("Arial");
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+ titleFont.setFontHeightInPoints((short) 16);
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+ titleFont.setBold(true);
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+ style.setFont(titleFont);
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+ styles.put("title", style);
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+
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+ style = wb.createCellStyle();
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+ style.setAlignment(HorizontalAlignment.CENTER);
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+ style.setVerticalAlignment(VerticalAlignment.CENTER);
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style.setBorderRight(BorderStyle.THIN);
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style.setRightBorderColor(IndexedColors.GREY_50_PERCENT.getIndex());
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style.setBorderLeft(BorderStyle.THIN);
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@@ -726,6 +830,10 @@ public class ExcelUtil<T>
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{
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cell.setCellValue((((BigDecimal) value).setScale(attr.scale(), attr.roundingMode())).toString());
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}
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+ else if (!attr.handler().equals(ExcelHandlerAdapter.class))
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+ {
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+ cell.setCellValue(dataFormatHandlerAdapter(value, attr));
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+ }
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else
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{
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// 设置列类型
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@@ -898,6 +1006,28 @@ public class ExcelUtil<T>
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return DictUtils.getDictValue(dictType, dictLabel, separator);
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}
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+ /**
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+ * 数据处理器
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+ *
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+ * @param value 数据值
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+ * @param excel 数据注解
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+ * @return
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+ */
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+ public String dataFormatHandlerAdapter(Object value, Excel excel)
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+ {
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+ try
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+ {
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+ Object instance = excel.handler().newInstance();
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+ Method formatMethod = excel.handler().getMethod("format", new Class[] { Object.class, String[].class });
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+ value = formatMethod.invoke(instance, value, excel.args());
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+ }
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+ catch (Exception e)
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+ {
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+ log.error("不能格式化数据 " + excel.handler(), e.getMessage());
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+ }
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+ return Convert.toStr(value);
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+ }
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+
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/**
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* 合计统计信息
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*/
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|
@@ -1025,7 +1155,17 @@ public class ExcelUtil<T>
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*/
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private void createExcelField()
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{
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- this.fields = new ArrayList<Object[]>();
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+ this.fields = getFields();
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+ this.fields = this.fields.stream().sorted(Comparator.comparing(objects -> ((Excel) objects[1]).sort())).collect(Collectors.toList());
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+ this.maxHeight = getRowHeight();
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+ }
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+
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+ /**
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+ * 获取字段注解信息
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+ */
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+ public List<Object[]> getFields()
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+ {
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+ List<Object[]> fields = new ArrayList<Object[]>();
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List<Field> tempFields = new ArrayList<>();
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tempFields.addAll(Arrays.asList(clazz.getSuperclass().getDeclaredFields()));
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tempFields.addAll(Arrays.asList(clazz.getDeclaredFields()));
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@@ -1034,7 +1174,12 @@ public class ExcelUtil<T>
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// 单注解
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if (field.isAnnotationPresent(Excel.class))
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{
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- putToField(field, field.getAnnotation(Excel.class));
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+ Excel attr = field.getAnnotation(Excel.class);
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+ if (attr != null && (attr.type() == Type.ALL || attr.type() == type))
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+ {
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+ field.setAccessible(true);
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+ fields.add(new Object[] { field, attr });
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+ }
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}
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// 多注解
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@@ -1042,14 +1187,17 @@ public class ExcelUtil<T>
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{
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Excels attrs = field.getAnnotation(Excels.class);
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Excel[] excels = attrs.value();
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- for (Excel excel : excels)
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+ for (Excel attr : excels)
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{
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- putToField(field, excel);
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+ if (attr != null && (attr.type() == Type.ALL || attr.type() == type))
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+ {
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+ field.setAccessible(true);
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+ fields.add(new Object[] { field, attr });
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+ }
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}
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}
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}
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- this.fields = this.fields.stream().sorted(Comparator.comparing(objects -> ((Excel) objects[1]).sort())).collect(Collectors.toList());
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- this.maxHeight = getRowHeight();
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+ return fields;
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}
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/**
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@@ -1066,23 +1214,15 @@ public class ExcelUtil<T>
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return (short) (maxHeight * 20);
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}
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- /**
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- * 放到字段集合中
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- */
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- private void putToField(Field field, Excel attr)
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- {
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- if (attr != null && (attr.type() == Type.ALL || attr.type() == type))
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- {
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- this.fields.add(new Object[] { field, attr });
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- }
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- }
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-
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/**
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* 创建一个工作簿
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*/
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public void createWorkbook()
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{
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this.wb = new SXSSFWorkbook(500);
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+ this.sheet = wb.createSheet();
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+ wb.setSheetName(0, sheetName);
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+ this.styles = createStyles(wb);
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}
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/**
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@@ -1091,17 +1231,13 @@ public class ExcelUtil<T>
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* @param sheetNo sheet数量
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* @param index 序号
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*/
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- public void createSheet(double sheetNo, int index)
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+ public void createSheet(int sheetNo, int index)
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{
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- this.sheet = wb.createSheet();
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- this.styles = createStyles(wb);
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// 设置工作表的名称.
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- if (sheetNo == 0)
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- {
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- wb.setSheetName(index, sheetName);
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- }
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- else
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+ if (sheetNo > 1 && index > 0)
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{
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+ this.sheet = wb.createSheet();
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+ this.createTitle();
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wb.setSheetName(index, sheetName + index);
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}
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}
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