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https://github.com/rosbit/csv-generator
csv content generator. csv内容生成器，免去数小标的烦恼。
https://github.com/rosbit/csv-generator
Last synced: about 6 hours ago
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csv content generator. csv内容生成器，免去数小标的烦恼。
- Host: GitHub
- URL: https://github.com/rosbit/csv-generator
- Owner: rosbit
- License: mit
- Created: 2021-02-10T07:04:30.000Z (almost 4 years ago)
- Default Branch: master
- Last Pushed: 2021-02-10T08:18:41.000Z (almost 4 years ago)
- Last Synced: 2024-06-20T13:44:12.928Z (5 months ago)
- Language: Go
- Homepage:
- Size: 6.84 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
# csv生成器
1. 通过接口实现csv输出与数据生成逻辑的分离
1. 通过列名输出数据，免去列下标数数容易出错的问题
1. 支持csv BOM头信息的输出，在各种系统上查看都不出现乱码
1. csv生成文件还是通过网络输出，使用场景自主决定
1. 通过提供adapter实现通用接口函数，减少实现代码
## 接口定义
```go
type CSVGenerator interface {
/// 在输出整个csv之前调用，在这里可以做一些输出准备工作
BeforeOutputCSV()
/// 获取输出目标
GetWriter() io.Writer
/// 获取csv的标题栏
GetTitles() []string
// 获取所有的输出行channel
GetRows() (<-chan map[string]string)
}
```
## 例子
```go
package main
import (
"github.com/rosbit/csv-generator"
"os"
"io"
"fmt"
)
func main() {
cg := &csvTest{}
tocsv.GenerateCSV(cg);
}
// ---- CSVGenerator implementation ----
type csvTest struct {
tocsv.DummyCSVGeneratorAdapter
}
func (a *csvTest) BeforeOutputCSV() {
fmt.Fprintf(os.Stderr, "BeforeOutputCSV() called\n")
}
func (a *csvTest) GetWriter() io.Writer {
return os.Stdout
}
func (a *csvTest) GetTitles() []string {
return []string{"a", "b", "c"}
}
func (a *csvTest) GetRows() (<-chan map[string]string) {
rows := make(chan map[string]string)
go func() {
for i := 0; i < 10; i++ {
row := make(map[string]string)
for j := 0; j < 3; j++ {
row[fmt.Sprintf("%c", 'a'+j)] = fmt.Sprintf("%d%d", i+1, j+1)
}
rows <- row
}
close(rows)
}()
return rows
}
```
## 运行结果
```csv
a,b,c
11,12,13
21,22,23
31,32,33
41,42,43
51,52,53
61,62,63
71,72,73
81,82,83
91,92,93
101,102,103
```