使用 phantomjs 从后调用 html 响应中获取 svg

如何解决使用 phantomjs 从后调用 html 响应中获取 svg

使用 post 方法开发了一个服务，其中我传递了另一个 POST 调用详细信息，例如 url、标题和数据体。使用这些参数和 javascript 进行后期调用并获取 html 响应，现在使用 phantonjs 想要将此 html 响应转换为 svg 并作为响应从 API 返回。

我已成功获得 html 响应，但无法将内容转换为 svg。到目前为止，我的代码如下所示..

-- POST API --

public HttpResponseMessage Post(PostRequest request)
        {
            //logger.info("Incoming request: " JsonConvert.SerializeObject(request));

            string svgString = GetSVG(request);
            var plainTextBytes = System.Text.Encoding.UTF8.GetBytes(svgString);

            return new HttpResponseMessage()
            {
                Content = new StringContent(
                                Convert.ToBase64String(plainTextBytes),Encoding.UTF8,"text/plain"
                            )
            };
        }
private string GetSVG(PostRequest request)
        {
            var ops = new List<string>();
            using (var phantomJS = new PhantomJS())
            {
                phantomJS.OutputReceived += (sender,e) =>
                {
                    if (e.Data != null)
                        ops.Add(e.Data);
                };
                phantomJS.ErrorReceived += (sender,e) =>
                {
                    if (e.Data != null)
                        ops.Add(e.Data);
                };

                try
                {
                    string script = GetScript(request);
                    phantomJS.RunScript(script,null);
                }
                catch (Exception ex)
                {
                    throw;
                }
                finally
                {
                    phantomJS.Abort();
                }
            }
            return ops.FirstOrDefault();

        }
private string GetScript(PostRequest request)
        {
            StringBuilder script = new StringBuilder();
            script.Append("var webPage = require('webpage');");
            script.Append("var page = webPage.create();");
            script.Append(@"var settings = {
                          operation: 'POST',encoding: 'utf8',headers: { 
                            'Content-Type' : 'application/json' },");
            script.Append(@"data: JSON.stringify({
                        val1: 'value1',val2: 'value2'})
                        };");
            script.Append(@"page.open('"+request.url+@"',settings,function(status) {
                      console.log('Status: ' + status);
                      // How to get response and convert to svg and return...
                    });");
            return script.ToString();
        }