C#生成pdf -- iText7 设置自定义字体和表格
itextsharp已经不再更新,由iText 7来替代
安装
nuget 安装 itext7
注册自定义字体
下载字体文件 .ttc或.ttf到项目目录,设置更新则拷贝到输出目录,这样构建的时候会把字体文件拷贝过去
windows系统自带黑体, 可以直接复制到项目目录, 其路径是
C:\Windows\Fonts\simhei.ttf
因为字体注册只需要一次,所以建议放到StartUp中. 其中的simhei.ttf换为你的字体文件
iText.Kernel.Font.PdfFontFactory.Register("simhei.ttf");
新建pdf文档
using PdfWriter writer = new ("list.pdf");
PdfDocument pdf = new (writer);
Document doc = new (pdf);
PdfWriter可以传入pdf文件目标路径或者Stream,如果不想保存到本地,那用MemoryStream保存在内存中即可. 后边的例子我们就是直接用MemoryStream来保存数据
设置字体
PdfFont sysFont = PdfFontFactory.CreateRegisteredFont("simhei", PdfEncodings.IDENTITY_H, PdfFontFactory.EmbeddingStrategy.PREFER_EMBEDDED, true);
doc.SetFont(sysFont)
.SetFontSize(12);//设置字体大小
示例
public class OrderDto
{
public string Name { get; set; }
public string Gender { get; set; }
public string Address { get; set; }
public string Phone { get; set; }
public List<ProductDto> Products { get; set; }
public string Remark { get; set; }
}
public class ProductDto
{
public string Code { get; set; }
public string Name { get; set; }
public string Category { get; set; }
public string Unit { get; set; }
public string Sku { get; set; }
public decimal Price { get; set; }
public int Quantity { get; set; }
}
\[HttpGet("pdf")\]
public IActionResult ExportPdf()
{
MemoryStream stream = new ();
PdfWriter writer = new (stream);
PdfDocument pdf = new (writer);
Document doc = new (pdf);
//黑体
PdfFont sysFont = PdfFontFactory.CreateRegisteredFont("simhei", PdfEncodings.IDENTITY\_H, PdfFontFactory.EmbeddingStrategy.PREFER\_EMBEDDED, true);
doc.SetFont(sysFont)
.SetFontSize(12);//设置字体大小
doc.Add(new Paragraph("订单列表")
.SetBold()//粗体
.SetTextAlignment(iText.Layout.Properties.TextAlignment.CENTER)//居中
);
var headerTexts = new\[\] {
"序号", "姓名", "性别", "居住地址", "联系电话",
"货号", "产品名称", "分类", "单位", "规格", "售价", "数量",
"备注"
};
var table = new Table(headerTexts.Length) // 设置表格列数
.SetTextAlignment(iText.Layout.Properties.TextAlignment.CENTER)
;
//添加表头
foreach (var header in headerTexts)
{
table.AddHeaderCell(new Cell()
.Add(new Paragraph(header))
.SetBold()//设置粗体
);
} var orders = new\[\]
{
new OrderDto
{
Name = "法外", Gender = "男", Address = "江苏省南京市江宁区梧桐路325号", Phone = "13545781245", Remark = "就这?",
Products = new List<ProductDto>{ new ProductDto { Code="XGRD102", Name = "格子衫", Category = "男装", Unit = "件", Sku = "紫色", Price = 39, Quantity = 1} }
},
new OrderDto
{
Name = "狂徒", Gender = "男", Address = "重庆市江北区朝鸽大道北777号", Phone = "15845568956", Remark = "代码敲得好,备胎当到老",
Products = new List<ProductDto>
{
new ProductDto { Code="FUS458", Name = "Amd R7 5800X", Category = "电子产品", Unit = "个", Sku = "盒装", Price = 2499, Quantity = 1},
new ProductDto { Code="TFES982", Name = "程序员帽子", Category = "配饰", Unit = "件", Sku = "绿色", Price = 666, Quantity = 1},
}
},
new OrderDto
{
Name = "张三", Gender = "女", Address = "辽宁省大连市甘井子区伞兵路2333号", Phone = "15952415263", Remark = "rnm, 退钱!!!",
Products = new List<ProductDto>{ new ProductDto { Code="TOP10", Name = "Rnm,退钱同款长袖", Category = "男装", Unit = "件", Sku = "红色", Price = 69, Quantity = 1} }
},
};
for (int i = 0; i < orders.Length; i++)
{
int rowSpan = orders\[i\].Products.Count;//商品行有多少个,基本信息列就要跨对应多少行
table.StartNewRow();//第一列开启新行
table
.AddCell(new Cell(rowSpan,1).Add(new Paragraph((i + 1).ToString()))//序号
.SetVerticalAlignment(iText.Layout.Properties.VerticalAlignment.MIDDLE))
.AddCell(new Cell(rowSpan, 1).Add(new Paragraph(orders\[i\].Name)).SetMinWidth(25)//姓名 设置最小列宽25,方便名字横向显示
.SetVerticalAlignment(iText.Layout.Properties.VerticalAlignment.MIDDLE))
.AddCell(new Cell(rowSpan, 1).Add(new Paragraph(orders\[i\].Gender))//性别
.SetVerticalAlignment(iText.Layout.Properties.VerticalAlignment.MIDDLE))
.AddCell(new Cell(rowSpan, 1).Add(new Paragraph(orders\[i\].Address))//居住地址
.SetVerticalAlignment(iText.Layout.Properties.VerticalAlignment.MIDDLE))
.AddCell(new Cell(rowSpan, 1).Add(new Paragraph(orders\[i\].Phone))//联系电话
.SetVerticalAlignment(iText.Layout.Properties.VerticalAlignment.MIDDLE));
//添加一行商品信息 (因为table只能按顺序从左到右一个cell一个cell地加)
table
.AddCell(new Cell(1,1).SetVerticalAlignment(iText.Layout.Properties.VerticalAlignment.MIDDLE)
.Add(new Paragraph(orders\[i\].Products\[0\].Code)//货号
))
.AddCell(new Cell().SetVerticalAlignment(iText.Layout.Properties.VerticalAlignment.MIDDLE)
.Add(new Paragraph(orders\[i\].Products\[0\].Name)//产品名称
))
.AddCell(new Cell().SetVerticalAlignment(iText.Layout.Properties.VerticalAlignment.MIDDLE)
.Add(new Paragraph(orders\[i\].Products\[0\].Category))
.SetMinWidth(25)
)//分类
.AddCell(new Cell().SetVerticalAlignment(iText.Layout.Properties.VerticalAlignment.MIDDLE)
.Add(new Paragraph(orders\[i\].Products\[0\].Unit)//单位
))
.AddCell(new Cell()
.SetVerticalAlignment(iText.Layout.Properties.VerticalAlignment.MIDDLE)
.Add(new Paragraph(orders\[i\].Products\[0\].Sku)//规格
.SetMinWidth(25)
))
.AddCell(new Cell().SetVerticalAlignment(iText.Layout.Properties.VerticalAlignment.MIDDLE)
.Add(new Paragraph(orders\[i\].Products\[0\].Price.ToString("0.00"))//售价
))
.AddCell(new Cell()
.SetVerticalAlignment(iText.Layout.Properties.VerticalAlignment.MIDDLE)
.Add(new Paragraph(orders\[i\].Products\[0\].Quantity.ToString())//数量
))
.AddCell(new Cell(rowSpan, 1).SetVerticalAlignment(iText.Layout.Properties.VerticalAlignment.MIDDLE)
.Add(new Paragraph(orders\[i\].Remark))
);//备注
//商品行大于1, 需要添加多行商品信息
if (orders\[i\].Products.Count > 1)
{
for (int j = 1; j < orders\[i\].Products.Count; j++)
{
table
.AddCell(new Cell(1, 1).SetVerticalAlignment(iText.Layout.Properties.VerticalAlignment.MIDDLE)
.Add(new Paragraph(orders\[i\].Products\[j\].Code)//货号
))
.AddCell(new Cell().SetVerticalAlignment(iText.Layout.Properties.VerticalAlignment.MIDDLE)
.Add(new Paragraph(orders\[i\].Products\[j\].Name)//产品名称
))
.AddCell(new Cell().SetVerticalAlignment(iText.Layout.Properties.VerticalAlignment.MIDDLE)
.Add(new Paragraph(orders\[i\].Products\[j\].Category))
.SetMinWidth(25)
)//分类
.AddCell(new Cell().SetVerticalAlignment(iText.Layout.Properties.VerticalAlignment.MIDDLE)
.Add(new Paragraph(orders\[i\].Products\[j\].Unit)//单位
))
.AddCell(new Cell()
.SetVerticalAlignment(iText.Layout.Properties.VerticalAlignment.MIDDLE)
.Add(new Paragraph(orders\[i\].Products\[j\].Sku)//规格
.SetMinWidth(25)
))
.AddCell(new Cell().SetVerticalAlignment(iText.Layout.Properties.VerticalAlignment.MIDDLE)
.Add(new Paragraph(orders\[i\].Products\[j\].Price.ToString("0.00"))//售价
))
.AddCell(new Cell()
.SetVerticalAlignment(iText.Layout.Properties.VerticalAlignment.MIDDLE)
.Add(new Paragraph(orders\[i\].Products\[j\].Quantity.ToString())//数量
));
}
}
}
doc.Add(table);
pdf.Close();//记得关闭PdfDocument和PdfWriter
writer.Close();
return File(stream.ToArray(), "application/pdf");
}结果如下
有几个要点
- 单元格合并是通过跨行或跨列来实现的, new Cell(2, 2)表示此单元格跨2行 2列
- 单元格设置居中最好是放在Add(new Paragraph("xx"))之前
- 添加单元格只能从左到右一个一个地加,所以有合并行的时候要把第一行全部添加完再添加下边的几行,如图所示.
![]()
- 新的一行要先调用table.StartNewRow() 然后table.AddCell()才会添加到新行
- 表格的列数是在new Table(13) 时传入的, 传入13就表示有13列
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