Golang+Qt合作 : go-echarts + QWebEngineView

简介

无聊使用了一下go-echarts, 使用Qt在C/S模式下嵌入使用B/S框架的简单例子

材料

Qt 5.15.0 + MSVC-2019-64bit

Golang1.14.3 + go-echarts

代码

Golang (Server端)
浏览器 localhost:8081 可以进行访问, 示例来自于 https://go-echarts.github.io/go-echarts/docs/kline

package main
import (
 
	"github.com/go-echarts/go-echarts/charts"
	"log"
	"math/rand"
	"net/http"
	"os"
	"time"
)
 
var nameItems = []string{"衬衫", "牛仔裤", "运动裤", "袜子", "冲锋衣", "羊毛衫"}
var foodItems = []string{"面包", "牛奶", "奶茶", "棒棒糖", "加多宝", "可口可乐"}
 
var seed = rand.NewSource(time.Now().UnixNano())
func randInt() []int {
	cnt := len(nameItems)
	r := make([]int, 0)
	for i := 0; i < cnt; i++ {
		r = append(r, int(seed.Int63())%50)
	}
	return r
}
 
// 或者使用 net/http，同上，后面也不就列出
func handler(w http.ResponseWriter, _ *http.Request) {
	bar := charts.NewBar()
	bar.SetGlobalOptions(charts.TitleOpts{Title: "Bar-示例图"}, charts.ToolboxOpts{Show: true})
	bar.SetSeriesOptions(charts.LabelTextOpts{Show: false})
	bar.AddXAxis(nameItems).
		AddYAxis("商家A", randInt()).
		AddYAxis("商家B", randInt())
	f, err := os.Create("bar.html")
	if err != nil {
		log.Println(err)
	}
	bar.Render(w, f) // Render 可接收多个 io.writer 接口
}
 
func main() {
	http.HandleFunc("/", handler)
	http.ListenAndServe(":8081", nil)
}

Qt (Browser端)

.pro

QT       += webenginewidgets
mainwindow.ui

拖一个LineEdit 做网址输入，Pushbutton刷新（或回车自动刷新）, widget 提升为QWebEngineView

mainwindow.cpp

// 在(按键)刷新槽函数内加入下面三句
QUrl url = QUrl::fromUserInput(ui->edtUrl->text());
ui->webView->load(url);
ui->webView->setFocus();

效果展示

????

参考

go-echarts - https://go-echarts.github.io/go-echarts/docs/kline