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分享我基于NPOI+ExcelReport实现的导入与导出EXCEL类库:ExcelUtility(续2篇-模板导出综合示例)

2019-11-14 13:29:58
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ExcelUtility类推出以来,经过项目中的实际使用与不断完善,现在又做了许多的优化并增加了许多的功能,本篇不再讲述原理,直接贴出示例代码以及相关的模板、结果图,以便大家快速掌握,另外这些示例说明我也已同步到GIT中,大家可以下载与学习,不足之处,敬请见谅,谢谢!

一、ExcelUtility类库操作说明(模板导出示例)

1.

        /// <summary>        /// 测试方法:测试依据模板+DataTable来生成EXCEL        /// </summary>        [TestMethod]        public void TestExportToExcelWithTemplateByDataTable()        {            DataTable dt = GetDataTable();//获取数据            string templateFilePath = AppDomain.CurrentDomain.BaseDirectory + "/excel.xlsx"; //获得EXCEL模板路径            SheetFormatterContainer formatterContainers = new SheetFormatterContainer(); //实例化一个模板数据格式化容器            PartFormatterBuilder partFormatterBuilder = new PartFormatterBuilder();//实例化一个局部元素格式化器            partFormatterBuilder.AddFormatter("Title", "跨越IT学员");//将模板表格中Title的值设置为跨越IT学员            formatterContainers.AppendFormatterBuilder(partFormatterBuilder);//添加到工作薄格式容器中,注意只有添加进去了才会生效            CellFormatterBuilder cellFormatterBuilder = new CellFormatterBuilder();//实例化一个单元格格式化器            cellFormatterBuilder.AddFormatter("rptdate", DateTime.Today.ToString("yyyy-MM-dd HH:mm"));//将模板表格中rptdate的值设置为当前日期            formatterContainers.AppendFormatterBuilder(cellFormatterBuilder);//添加到工作薄格式容器中,注意只有添加进去了才会生效            //实例化一个表格格式化器,dt.Select()是将DataTable转换成DataRow[],name表示的模板表格中第一行第一个单元格要填充的数据参数名            TableFormatterBuilder<DataRow> tableFormatterBuilder = new TableFormatterBuilder<DataRow>(dt.Select(), "name");            tableFormatterBuilder.AddFormatters(new Dictionary<string, Func<DataRow, object>>{                {"name",r=>r["Col1"]},//将模板表格中name对应DataTable中的列Col1                {"sex",r=>r["Col2"]},//将模板表格中sex对应DataTable中的列Col2                {"km",r=>r["Col3"]},//将模板表格中km对应DataTable中的列Col3                {"score",r=>r["Col4"]},//将模板表格中score对应DataTable中的列Col4                {"result",r=>r["Col5"]}//将模板表格中result对应DataTable中的列Co5            });            formatterContainers.AppendFormatterBuilder(tableFormatterBuilder);//添加到工作薄格式容器中,注意只有添加进去了才会生效            string excelPath = ExcelUtility.Export.ToExcelWithTemplate(templateFilePath, "table", formatterContainers);            Assert.IsTrue(File.Exists(excelPath));        }

模板如下:

导出结果如下:

 

2.

        /// <summary>        /// 测试方法:测试依据模板+List来生成EXCEL        /// </summary>        [TestMethod]        public void TestExportToExcelWithTemplateByList()        {            List<Student> studentList = GetStudentList();//获取数据            string templateFilePath = AppDomain.CurrentDomain.BaseDirectory + "/excel.xlsx"; //获得EXCEL模板路径            SheetFormatterContainer formatterContainers = new SheetFormatterContainer(); //实例化一个模板数据格式化容器            PartFormatterBuilder partFormatterBuilder = new PartFormatterBuilder();//实例化一个局部元素格式化器            partFormatterBuilder.AddFormatter("Title", "跨越IT学员");//将模板表格中Title的值设置为跨越IT学员            formatterContainers.AppendFormatterBuilder(partFormatterBuilder);//添加到工作薄格式容器中,注意只有添加进去了才会生效            CellFormatterBuilder cellFormatterBuilder = new CellFormatterBuilder();//实例化一个单元格格式化器            cellFormatterBuilder.AddFormatter("rptdate", DateTime.Today.ToString("yyyy-MM-dd HH:mm"));//将模板表格中rptdate的值设置为当前日期            formatterContainers.AppendFormatterBuilder(cellFormatterBuilder);//添加到工作薄格式容器中,注意只有添加进去了才会生效            //实例化一个表格格式化器,studentList本身就是可枚举的无需转换,name表示的模板表格中第一行第一个单元格要填充的数据参数名            TableFormatterBuilder<Student> tableFormatterBuilder = new TableFormatterBuilder<Student>(studentList, "name");            tableFormatterBuilder.AddFormatters(new Dictionary<string, Func<Student, object>>{                {"name",r=>r.Name},//将模板表格中name对应Student对象中的属性Name                {"sex",r=>r.Sex},//将模板表格中sex对应Student对象中的属性Sex                {"km",r=>r.KM},//将模板表格中km对应Student对象中的属性KM                {"score",r=>r.Score},//将模板表格中score对应Student对象中的属性Score                {"result",r=>r.Result}//将模板表格中result对应Student对象中的属性Result            });            formatterContainers.AppendFormatterBuilder(tableFormatterBuilder);            string excelPath = ExcelUtility.Export.ToExcelWithTemplate(templateFilePath, "table", formatterContainers);            Assert.IsTrue(File.Exists(excelPath));        }

模板同上一个模板

导出结果如下:

 

3.

        /// <summary>        /// 测试方法:测试依据模板+DataTable来生成多表格EXCEL(注意:由于ExcelReport框架限制,目前仅支持模板文件格式为:xls)        /// </summary>        [TestMethod]        public void TestExportToRepeaterExcelWithTemplateByDataTable()        {            DataTable dt = GetDataTable();//获取数据            string templateFilePath = AppDomain.CurrentDomain.BaseDirectory + "/excel2.xls"; //获得EXCEL模板路径            SheetFormatterContainer formatterContainers = new SheetFormatterContainer(); //实例化一个模板数据格式化容器            //实例化一个可重复表格格式化器,dt.Select()是将DataTable转换成DataRow[],rpt_begin表示的模板表格开始位置参数名,rpt_end表示的模板表格结束位置参数名            RepeaterFormatterBuilder<DataRow> tableFormatterBuilder = new RepeaterFormatterBuilder<DataRow>(dt.Select(), "rpt_begin", "rpt_end");            tableFormatterBuilder.AddFormatters(new Dictionary<string, Func<DataRow, object>>{                {"sex",r=>r["Col2"]},//将模板表格中sex对应DataTable中的列Col2                {"km",r=>r["Col3"]},//将模板表格中km对应DataTable中的列Col3                {"score",r=>r["Col4"]},//将模板表格中score对应DataTable中的列Col4                {"result",r=>r["Col5"]}//将模板表格中result对应DataTable中的列Co5            });            PartFormatterBuilder<DataRow> partFormatterBuilder2 = new PartFormatterBuilder<DataRow>();//实例化一个可嵌套的局部元素格式化器            partFormatterBuilder2.AddFormatter("name", r => r["Col1"]);//将模板表格中name对应DataTable中的列Col1            tableFormatterBuilder.AppendFormatterBuilder(partFormatterBuilder2);//添加到可重复表格格式化器中,作为其子格式化器            CellFormatterBuilder<DataRow> cellFormatterBuilder = new CellFormatterBuilder<DataRow>();//实例化一个可嵌套的单元格格式化器            cellFormatterBuilder.AddFormatter("rptdate", r => DateTime.Today.ToString("yyyy-MM-dd HH:mm"));//将模板表格中rptdate的值设置为当前日期            tableFormatterBuilder.AppendFormatterBuilder(cellFormatterBuilder);//添加到可重复表格格式化器中,作为其子格式化器            formatterContainers.AppendFormatterBuilder(tableFormatterBuilder);//添加到工作薄格式容器中,注意只有添加进去了才会生效            string excelPath = ExcelUtility.Export.ToExcelWithTemplate(templateFilePath, "multtable", formatterContainers);            Assert.IsTrue(File.Exists(excelPath));        }

模板如下:

导出结果如下:

 

4.

        /// <summary>        /// 测试方法:测试依据复杂模板(含固定表格,可重复表格)+DataTable来生成EXCEL (注意:由于ExcelReport框架限制,目前仅支持模板文件格式为:xls)        /// </summary>        [TestMethod]        public void TestExportToExcelWithTemplateByList2()        {            var schoolLevelList = SchoolLevel.GetList();            var classList = ClassInfo.GetList();            string templateFilePath = AppDomain.CurrentDomain.BaseDirectory + "/mb.xls"; //获得EXCEL模板路径            SheetFormatterContainer formatterContainers = new SheetFormatterContainer(); //实例化一个模板数据格式化容器            PartFormatterBuilder partFormatterBuilder = new PartFormatterBuilder();            partFormatterBuilder.AddFormatter("school", "跨越小学");            formatterContainers.AppendFormatterBuilder(partFormatterBuilder);            TableFormatterBuilder<SchoolLevel> tableFormatterBuilder = new TableFormatterBuilder<SchoolLevel>(schoolLevelList, "lv");//实例化一个表格格式化器            tableFormatterBuilder.AddFormatters(new Dictionary<string, Func<SchoolLevel, object>>            {                {"lv",r=>r.LevelName}, //模板参数与数据源SchoolLevel属性对应关系,下同                {"clscount",r=>r.ClassCount},                {"lvmaster",r=>r.Master}            });            formatterContainers.AppendFormatterBuilder(tableFormatterBuilder);//添加到工作薄格式容器中,注意只有添加进去了才会生效            RepeaterFormatterBuilder<ClassInfo> repeaterFormatterBuilder = new RepeaterFormatterBuilder<ClassInfo>(classList, "lv_begin", "lv_end");//实例化一个可重复表格格式化器            repeaterFormatterBuilder.AddFormatters(new Dictionary<string, Func<ClassInfo, object>> {                 {"class",r=>r.ClassName}, //模板参数与数据源ClassInfo属性对应关系,下同                {"stucount",r=>r.StudentCount},                {"clsmaster",r=>r.Master},                {"lvitem",r=>r.LevelName}            });            formatterContainers.AppendFormatterBuilder(repeaterFormatterBuilder);//添加到工作薄格式容器中,注意只有添加进去了才会生效            string excelPath = ExcelUtility.Export.ToExcelWithTemplate(templateFilePath, "school", formatterContainers);            Assert.IsTrue(File.Exists(excelPath));        }

模板如下:

导出结果如下:

 

5.

        /// <summary>        /// 测试方法:测试依据复杂模板(含固定表格,可重复表格中嵌套表格)+DataTable来生成EXCEL (注意:由于ExcelReport框架限制,目前仅支持模板文件格式为:xls)        /// </summary>        [TestMethod]        public void TestExportToExcelWithTemplateByList3()        {            var schoolLevelList = SchoolLevel.GetList();            var classList = ClassInfo.GetListWithLevels();            string templateFilePath = AppDomain.CurrentDomain.BaseDirectory + "/mb1.xls"; //获得EXCEL模板路径            SheetFormatterContainer formatterContainers = new SheetFormatterContainer(); //实例化一个模板数据格式化容器            PartFormatterBuilder partFormatterBuilder = new PartFormatterBuilder();            partFormatterBuilder.AddFormatter("school", "跨越小学");            formatterContainers.AppendFormatterBuilder(partFormatterBuilder);            TableFormatterBuilder<SchoolLevel> tableFormatterBuilder = new TableFormatterBuilder<SchoolLevel>(schoolLevelList, "lv");//实例化一个表格格式化器            tableFormatterBuilder.AddFormatters(new Dictionary<string, Func<SchoolLevel, object>>            {                {"lv",r=>r.LevelName}, //模板参数与数据源SchoolLevel属性对应关系,下同                {"clscount",r=>r.ClassCount},                {"lvmaster",r=>r.Master}            });            formatterContainers.AppendFormatterBuilder(tableFormatterBuilder);//添加到工作薄格式容器中,注意只有添加进去了才会生效            RepeaterFormatterBuilder<KeyValuePair<string, List<ClassInfo>>> repeaterFormatterBuilder = new RepeaterFormatterBuilder<KeyValuePair<string, List<ClassInfo>>>(classList, "lv_begin", "lv_end");            repeaterFormatterBuilder.AddFormatter("lvitem",r=>r.Key);             TableFormatterBuilder<KeyValuePair<string, List<ClassInfo>>,ClassInfo> tableFormatterBuilder2=new TableFormatterBuilder<KeyValuePair<string, List<ClassInfo>>,ClassInfo>(r=>r.Value,"class");            tableFormatterBuilder2.AddFormatter("class",r=>r.ClassName);            tableFormatterBuilder2.AddFormatter("stucount",r=>r.StudentCount);            tableFormatterBuilder2.AddFormatter("clsmaster",r=>r.Master);            repeaterFormatterBuilder.AppendFormatterBuilder(tableFormatterBuilder2);            formatterContainers.AppendFormatterBuilder(repeaterFormatterBuilder);//添加到工作薄格式容器中,注意只有添加进去了才会生效            string excelPath = ExcelUtility.Export.ToExcelWithTemplate(templateFilePath, "school", formatterContainers);            Assert.IsTrue(File.Exists(excelPath));        }

模板如下:

导出结果如下:

 

6.

        /// <summary>        /// 测试方法:测试依据复杂模板(多工作薄,且含固定表格,可重复表格)+DataSet来生成EXCEL,只支持XLS        /// </summary>        [TestMethod]        public void TestExportToExcelWithTemplateByDataSet()        {            var ds = GetDataSet();            string templateFilePath = AppDomain.CurrentDomain.BaseDirectory + "/mb2.xls"; //获得EXCEL模板路径            Dictionary<string, SheetFormatterContainer> formatterContainerDic = new Dictionary<string, SheetFormatterContainer>(); //实例化一个模板数据格式化容器数组,包含两个SheetFormatterContainer用于格式化两个工作薄            #region 创建第一个工作薄格式化容器,并设置相关参数对应关系            SheetFormatterContainer formatterContainer1 = new SheetFormatterContainer();            PartFormatterBuilder partFormatterBuilder = new PartFormatterBuilder();            partFormatterBuilder.AddFormatter("school", "跨越小学");            formatterContainer1.AppendFormatterBuilder(partFormatterBuilder);            TableFormatterBuilder<DataRow> tableFormatterBuilder = new TableFormatterBuilder<DataRow>(ds.Tables[0].Select(), "lv");//实例化一个表格格式化器            tableFormatterBuilder.AddFormatters(new Dictionary<string, Func<DataRow, object>>            {                {"lv",r=>r["Col1"]}, //模板参数与数据源DataTable属性对应关系,下同                {"clscount",r=>r["Col2"]},                {"lvmaster",r=>r["Col3"]}            });            formatterContainer1.AppendFormatterBuilder(tableFormatterBuilder);//添加到工作薄格式容器中,注意只有添加进去了才会生效            RepeaterFormatterBuilder<DataRow> repeaterFormatterBuilder = new RepeaterFormatterBuilder<DataRow>(ds.Tables[1].Select(), "lv_begin", "lv_end");//实例化一个可重复表格格式化器            repeaterFormatterBuilder.AddFormatters(new Dictionary<string, Func<DataRow, object>> {                 {"class",r=>r["Col1"]}, //模板参数与数据源ClassInfo属性对应关系,下同                {"stucount",r=>r["Col2"]},                {"clsmaster",r=>r["Col3"]},                {"lvitem",r=>r["Col4"]}            });            formatterContainer1.AppendFormatterBuilder(repeaterFormatterBuilder);//添加到工作薄格式容器中,注意只有添加进去了才会生效            formatterContainerDic.Add("table1", formatterContainer1);//添加到工作薄格式容器数组中,注意此处的Key值为模板上工作薄的名称,此处即为:table1            #endregion            #region 创建第二个工作薄格式化容器,并设置相关参数对应关系            SheetFormatterContainer formatterContainer2 = new SheetFormatterContainer(); //实例化一个模板数据格式化容器            PartFormatterBuilder partFormatterBuilder2 = new PartFormatterBuilder();//实例化一个局部元素格式化器            partFormatterBuilder2.AddFormatter("Title", "跨越IT学员");//将模板表格中Title的值设置为跨越IT学员            formatterContainer2.AppendFormatterBuilder(partFormatterBuilder2);//添加到工作薄格式容器中,注意只有添加进去了才会生效            CellFormatterBuilder cellFormatterBuilder2 = new CellFormatterBuilder();//实例化一个单元格格式化器            cellFormatterBuilder2.AddFormatter("rptdate", DateTime.Today.ToString("yyyy-MM-dd HH:mm"));//将模板表格中rptdate的值设置为当前日期            formatterContainer2.AppendFormatterBuilder(cellFormatterBuilder2);//添加到工作薄格式容器中,注意只有添加进去了才会生效            //实例化一个表格格式化器,dt.Select()是将DataTable转换成DataRow[],name表示的模板表格中第一行第一个单元格要填充的数据参数名            TableFormatterBuilder<DataRow> tableFormatterBuilder2 = new TableFormatterBuilder<DataRow>(ds.Tables[2].Select(), "name");            tableFormatterBuilder2.AddFormatters(new Dictionary<string, Func<DataRow, object>>{                {"name",r=>r["Col1"]},//将模板表格中name对应DataTable中的列Col1                {"sex",r=>r["Col2"]},//将模板表格中sex对应DataTable中的列Col2                {"km",r=>r["Col3"]},//将模板表格中km对应DataTable中的列Col3                {"score",r=>r["Col4"]},//将模板表格中score对应DataTable中的列Col4                {"result",r=>r["Col5"]}//将模板表格中result对应DataTable中的列Co5            });            formatterContainer2.AppendFormatterBuilder(tableFormatterBuilder2);//添加到工作薄格式容器中,注意只有添加进去了才会生效            formatterContainerDic.Add("table2", formatterContainer2);//添加到工作薄格式容器数组中,注意此处的Key值为模板上工作薄的名称,此处即为:table2            #endregion            string excelPath = ExcelUtility.Export.ToExcelWithTemplate(templateFilePath, formatterContainerDic);            Assert.IsTrue(File.Exists(excelPath));        }

模板如下:

    

导出结果如下:

   

 

二、ExcelUtility类库操作说明(嵌入图片示例)

一、 制作模板(含图片)
1. 制作模板的文件格式需为兼容格式,即:xls或xlt;
2. 模板变量(或称为占位符)定义与之前相同,即:$[变量名];
3. 图片变量定义如下:
a) 绘制一个图形,图形形状尽可能的与要显示的图片相同,比如:印章,则可绘制一个圆形;
b) 图形必需是透明背景,边框可要可不要,建议留着,这样后续调整比较方便,如下图中的蓝色透明背景圆形:

c) 图形大小尽可能与要显示的图片大小相同,如下图示:

 

由于EXCEL上大小默认采用厘米,而图片一般采用像素,所以需要自己换算一下像素对应的厘米数(也可将EXCEL计算单位设为像素,方法自行网上查找);也可网上下载单位转换工具
另外图形属性建议设置成如下图:

温馨提示:图形形状、属性若未设置一般不影响导出效果,但不排除其它异常情况,图形大小是一定要设置,且尽可能与要显示图形大小(高、宽)相同,否则有可能造成导出变形

代码示例:

    /// <summary>        /// 测试方法:测试依据模板+DataTable+图片来生成包含图片的EXCEL,只支持XLS        /// </summary>        [TestMethod]        public void TestInsertPic()        {            DataTable dt = GetDataTable();//获取数据            string templateFilePath = AppDomain.CurrentDomain.BaseDirectory + "/excel.xls"; //获得EXCEL模板路径            SheetFormatterContainer formatterContainers = new SheetFormatterContainer(); //实例化一个模板数据格式化容器            PartFormatterBuilder partFormatterBuilder = new PartFormatterBuilder();//实例化一个局部元素格式化器            partFormatterBuilder.AddFormatter("Title", "跨越IT学员");//将模板表格中Title的值设置为跨越IT学员d            formatterContainers.AppendFormatterBuilder(partFormatterBuilder);//添加到工作薄格式容器中,注意只有添加进去了才会生效            CellFormatterBuilder cellFormatterBuilder = new CellFormatterBuilder();//实例化一个单元格格式化器            cellFormatterBuilder.AddFormatter("rptdate", DateTime.Today.ToString("yyyy-MM-dd HH:mm"));//将模板表格中rptdate的值设置为当前日期            formatterContainers.AppendFormatterBuilder(cellFormatterBuilder);//添加到工作薄格式容器中,注意只有添加进去了才会生效            //实例化一个表格格式化器,dt.Select()是将DataTable转换成DataRow[],name表示的模板表格中第一行第一个单元格要填充的数据参数名            TableFormatterBuilder<DataRow> tableFormatterBuilder = new TableFormatterBuilder<DataRow>(dt.Select(), "name");            tableFormatterBuilder.AddFormatters(new Dictionary<string, Func<DataRow, object>>{                {"name",r=>r["Col1"]},//将模板表格中name对应DataTable中的列Col1                {"sex",r=>r["Col2"]},//将模板表格中sex对应DataTable中的列Col2                {"km",r=>r["Col3"]},//将模板表格中km对应DataTable中的列Col3                {"score",r=>r["Col4"]},//将模板表格中score对应DataTable中的列Col4                {"result",r=>r["Col5"]}//将模板表格中result对应DataTable中的列Co5            });            formatterContainers.AppendFormatterBuilder(tableFormatterBuilder);//添加到工作薄格式容器中,注意只有添加进去了才会生效            string picPath = AppDomain.CurrentDomain.BaseDirectory + "//tz.png";//图片路径            PictureWithShapeFormatterBuilder pictureBuilder = new PictureWithShapeFormatterBuilder();//实例化一个图片关联图形格式化器            //pictureBuilder.AddFormatter(picPath);//当sheet中只有一个图形时,我们可以省略指定区域,那么默认就是把整个工作薄区域当成一个寻找图形区域,若sheet中包含多个,则应指定区域,替换成如下语句            pictureBuilder.AddFormatter(picPath,5,60000, 0, 3, false);//第一个参数为图片路径,中间4个参数为数字型指定图形寻找的工作薄区域(行索引,列索引,索引从0开始计),最后一个为是否自适应大小,一般不建议使用,除非压缩图片            formatterContainers.AppendFormatterBuilder(pictureBuilder);            string excelPath = ExcelUtility.Export.ToExcelWithTemplate(templateFilePath, "table", formatterContainers);            Assert.IsTrue(File.Exists(excelPath));        }

模板如下:

注意图片若需要为透明背景格式,则必需使用PNG格式,NPOI支持的图片主要格式有:PNG,JPG

导出结果如下:

温馨提示:
pictureBuilder.AddFormatter(picPath);//当sheet中只有一个图形时,我们可以省略指定区域,那么默认就是把整个工作薄区域当成一个寻找图形区域,若sheet中包含多个,则应指定区域,替换成如下语句
pictureBuilder.AddFormatter(picPath,5,60000, 0, 3, false);//第一个参数为图片路径,中间4个参数为数字型指定图形寻找的工作薄区域(行索引(起止),列索引(起止),索引从0开始计),最后一个为是否自适应大小,一般不建议使用,除非压缩图片


如果图形可能随单元格进行位置调整,那么在指定图形区域时需注意,如果图形会随单元格下移,那么结束行索引(MinRow)就需要指定一个可能的最大值或不指定,如果图形会随单元格右移,那么结束列索引(MinColumn)就需要指定一个可能的最大值或不指定,如果存在多个图形区域,则上述情况都必需给定具体值(可能的最大值),以免造成区域交叉,从而导致图片显示不正确,如下示例:

//图形可能下移,可能右移,那么将结束行设为可能最大值:60000,结束列设为可能最大值:255
pictureBuilder.AddFormatter(picPath, 5, 60000, 0, 255, false);

//此处只指定开始行与开始列,与上面差不多,但建议使用上面的用法
pictureBuilder.AddFormatter(new PictureWithShapeInfo(picPath, new SheetRange() {MinRow=5,MinColumn=0 },false));

 

特别说明:

1.本类库是基于NPOI+ExcelReport,所有功能凡我的类库能够实现的,NPOI与ExcelReport都可以实现,只是用法及复杂程度不同而矣,我封装的目的就是为了降低大家的学习难度,提高使用效率,免费且开源,源代码同步更新至开源社区的GIT目录中,具体地址请看我该系列之前的文章有列出,在此就不再说明。

2.上述图片关联图形显示功能我是在ExcelReport基础上增加了一个PictureWithShapeFormatter类及其相关的类:PictureWithShapeInfo、SheetRange,因没有关联GIT,所以是在本地更新的,这几个类的代码如下:

PictureWithShapeFormatter:

using NPOI.Extend;using NPOI.HSSF.UserModel;using NPOI.SS.UserModel;using NPOI.XSSF.UserModel;using System;using System.Collections.Generic;using System.Linq;using System.Text;namespace ExcelReport{    public class PictureWithShapeFormatter : ElementFormatter    {        PRivate PictureWithShapeInfo PictureInfo = null;        public PictureWithShapeFormatter(PictureWithShapeInfo pictureInfo)        {            this.PictureInfo = pictureInfo;        }        public override void Format(SheetAdapter sheetAdapter)        {            var sheet = sheetAdapter.CurrentSheet;            var shapes = PictureInfo.GetShapes(sheet);            bool isCompatible = false;            if (sheet is HSSFSheet)            {                isCompatible = true;            }            if (shapes == null || shapes.Count <= 0)            {                throw new Exception(string.Format("未能获取到工作薄[{0}]指定区域的图形对象列表!", sheet.SheetName));            }            byte[] bytes = System.IO.File.ReadAllBytes(PictureInfo.FilePath);            int pictureIdx = -1;            IDrawing drawing = null;            IClientAnchor anchor = null;            if (isCompatible)            {                var shape = shapes[0] as HSSFShape;                anchor = shape.Anchor as IClientAnchor;                drawing = shape.Patriarch;                shape.LineStyle = LineStyle.None;            }            else            {                var shape = shapes[0] as XSSFShape;                anchor = shape.GetAnchor() as IClientAnchor;                drawing = shape.GetDrawing();                shape.LineStyle = LineStyle.None;            }            pictureIdx = sheet.Workbook.AddPicture(bytes, PictureInfo.PictureType);            var picture = drawing.CreatePicture(anchor, pictureIdx);            if (PictureInfo.AutoSize)            {                picture.Resize();            }        }    }}

PictureWithShapeInfo、SheetRange:

using NPOI.SS.UserModel;using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.IO;using NPOI.HSSF.UserModel;using NPOI.XSSF.UserModel;using NPOI.Extend;namespace ExcelReport{    /// <summary>    /// 图片关联图形信息    /// 作者:Zuowenjun    /// </summary>    public class PictureWithShapeInfo    {        private SheetRange _SheetRange = new SheetRange();        public string FilePath { get; set; }        public PictureType PictureType { get; set; }        public SheetRange ShapeRange        {            get { return _SheetRange; }            set            {                if (value != null)                {                    _SheetRange = value;                }            }        }        public bool AutoSize { get; set; }        public PictureWithShapeInfo()        { }        public PictureWithShapeInfo(string filePath, SheetRange shapeRange = null, bool autoSize = false)        {            this.FilePath = filePath;            this.ShapeRange = shapeRange;            this.AutoSize = autoSize;            this.PictureType = GetPictureType(filePath);        }        public List<object> GetShapes(ISheet sheet)        {            List<object> shapeAllList = new List<object>();            var shapeContainer = sheet.DrawingPatriarch;            if (sheet is HSSFSheet)            {                var shapeContainerHSSF = sheet.DrawingPatriarch as HSSFShapeContainer;                if (null != shapeContainer)                {                    var shapeList = shapeContainerHSSF.Children;                    foreach (var shape in shapeList)                    {                        if (shape is HSSFShape && shape.Anchor is HSSFClientAnchor)                        {                            var anchor = shape.Anchor as HSSFClientAnchor;                            if (IsInternalOrIntersect(ShapeRange.MinRow, ShapeRange.MaxRow, ShapeRange.MinColumn, ShapeRange.MaxColumn, anchor.Row1, anchor.Row2, anchor.Col1, anchor.Col2, true))                            {                                shapeAllList.Add(shape);                            }                        }                    }                }            }            else            {                var documentPartList = (sheet as XSSFSheet).GetRelations();                foreach (var documentPart in documentPartList)                {                    if (documentPart is XSSFDrawing)                    {                        var drawing = (XSSFDrawing)documentPart;                        var shapeList = drawing.GetShapes();                        foreach (var shape in shapeList)                        {                            var anchorResult = shape.GetAnchor();                            if (shape is XSSFShape && anchorResult is XSSFClientAnchor)                            {                                var anchor = anchorResult as XSSFClientAnchor;                                if (IsInternalOrIntersect(ShapeRange.MinRow, ShapeRange.MaxRow, ShapeRange.MinColumn, ShapeRange.MaxColumn, anchor.Row1, anchor.Row2, anchor.Col1, anchor.Col2, true))                                {                                    shapeAllList.Add(shape);                                }                            }                        }                    }                }            }            return shapeAllList;        }        private PictureType GetPictureType(string filePath)        {            string ext = Path.GetExtension(filePath).ToUpper();            switch (ext)            {                case ".JPG": { return PictureType.JPEG; }                case ".PNG": { return PictureType.PNG; }                default: { return PictureType.None; }            }        }        private bool IsInternalOrIntersect(int? rangeMinRow, int? rangeMaxRow, int? rangeMinCol, int? rangeMaxCol,                                        int pictureMinRow, int pictureMaxRow, int pictureMinCol, int pictureMaxCol, bool onlyInternal)        {            int _rangeMinRow = rangeMinRow ?? pictureMinRow;            int _rangeMaxRow = rangeMaxRow ?? pictureMaxRow;            int _rangeMinCol = rangeMinCol ?? pictureMinCol;            int _rangeMaxCol = rangeMaxCol ?? pictureMaxCol;            if (onlyInternal)            {                return (_rangeMinRow <= pictureMinRow && _rangeMaxRow >= pictureMaxRow &&                        _rangeMinCol <= pictureMinCol && _rangeMaxCol >= pictureMaxCol);            }            else            {                return ((Math.Abs(_rangeMaxRow - _rangeMinRow) + Math.Abs(pictureMaxRow - pictureMinRow) >= Math.Abs(_rangeMaxRow + _rangeMinRow - pictureMaxRow - pictureMinRow)) &&                (Math.Abs(_rangeMaxCol - _rangeMinCol) + Math.Abs(pictureMaxCol - pictureMinCol) >= Math.Abs(_rangeMaxCol + _rangeMinCol - pictureMaxCol - pictureMinCol)));            }        }    }    /// <summary>    /// 工作薄区域    /// 作者:Zuowenjun    /// </summary>    public class SheetRange    {        public int? MinRow { get; set; }        public int? MaxRow { get; set; }        public int? MinColumn { get; set; }        public int? MaxColumn { get; set; }        public SheetRange()        { }        public SheetRange(int minRow, int maxRow, int minColumn, int maxColumn)        {            this.MinRow = minRow;            this.MaxRow = maxRow;            this.MinColumn = minColumn;            this.MaxColumn = maxColumn;        }        public override bool Equals(object obj)        {            bool equalResult = false;            equalResult = base.Equals(obj);            if (!equalResult)            {                var otherSheetRange = obj as SheetRange;                if (otherSheetRange != null)                {                    equalResult = (this.MinRow <= otherSheetRange.MinRow && this.MaxRow >= otherSheetRange.MaxRow                        && this.MinColumn <= otherSheetRange.MinColumn && this.MaxColumn >= otherSheetRange.MaxColumn);                }            }            return equalResult;        }        public override int GetHashCode()        {            return this.ToString().GetHashCode();        }        public override string ToString()        {            return string.Format("MinRow:{0},MaxRow:{1},MinColumn:{2},MaxColumn:{3}", this.MinRow, this.MaxRow, this.MinColumn, this.MaxColumn);        }    }}

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