H5在app端导出

  // 导出pdf
    exportPdf() {
      // let img = this.myEcharts1.getDataURL();
      let params = {
        ...this.query,
        coursename: this.courseName,
        rname: this.className,
        lines: this.templateData1,
        segments: this.templateData2,
        customizes: this.templateData3
      };
      params.page1 = undefined;
      params.page2 = undefined;
      params.size = undefined;
      this.$postjson(
        "/PDF/export",
        params
      ).then(res => {
        if (res.data.status === 200) {
          if (this.bang > 0) {
            const fileDownLoad = {
              url: res.data.url,
              goNext: "附件下载"
            };
            //IOS端调用
            if (window.webkit) {
              window.webkit.messageHandlers.call.postMessage(fileDownLoad);
            }
            //安卓端调用
            if (window.WebViewJavascriptBridge) {
              window.WebViewJavascriptBridge.send(fileDownLoad);
            } else {
              document.addEventListener(
                "WebViewJavascriptBridgeReady",
                function() {
                  window.WebViewJavascriptBridge.send(fileDownLoad);
                },
                false
              );
            }
          } else {
            window.open(res.data.data);
            // kk = res.data.url;
          }
        }
      });
    },