使用windows窗口展示go-echarts图表

embedded/2024/11/25 13:53:16/

在使用golang画一些柱状图，折线图，饼状图等图表的时候，go-echarts应该是个很不错的选择，它直接集成了 Apache ECharts，因此使用起来非常方便，但是它都是生成一个html文件，你还得在浏览器打开，略显麻烦，无写了个程序来直接展示页面，无需浏览器，代码很简单，直接粘贴，目前只支持windows系统。

package mainimport ("encoding/base64""log"webview2 "github.com/jchv/go-webview2""math/rand""github.com/go-echarts/go-echarts/v2/charts""github.com/go-echarts/go-echarts/v2/opts"
)/*go get -u github.com/go-echarts/go-echarts/v2/...https://echarts.apache.org/examples/zh/index.html#chart-type-line*/func main() {echarts()
}// generate random data for bar chart
func generateBarItems() []opts.BarData {items := make([]opts.BarData, 0)for i := 0; i < 7; i++ {items = append(items, opts.BarData{Value: rand.Intn(300)})}return items
}func echarts() {// create a new bar instancebar := charts.NewBar()// set some global options like Title/Legend/ToolTip or anything elsebar.SetGlobalOptions(charts.WithTitleOpts(opts.Title{Title:    "My first bar chart generated by go-echarts",Subtitle: "It's extremely easy to use, right?",}))// Put data into instancebar.SetXAxis([]string{"Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"}).AddSeries("Category A", generateBarItems()).AddSeries("Category B", generateBarItems())// Where the magic happens// f, _ := os.Create("bar.html")// bar.Render(f)show(bar.RenderContent())
}func show(content []byte) {w := webview2.NewWithOptions(webview2.WebViewOptions{Debug:     true,AutoFocus: true,WindowOptions: webview2.WindowOptions{Title:  "Minimal webview example",Width:  800,Height: 600,IconId: 2,Center: true,},})if w == nil {log.Fatalln("Failed to load webview.")}defer w.Destroy()w.Navigate(`data:text/html;base64,`+base64.StdEncoding.EncodeToString(content))w.Run()
}