TQJsonOutputChannel \u7684\u4e3b\u8981\u4f5c\u7528\u662f\u7528\u6765\u5feb\u901f\u5199\u5165\u5927\u578b\u7684 JSON \u6570\u636e\u5230\u6587\u4ef6\u4e2d\uff0c\u6240\u4ee5\u6574\u4f53\u662f\u9762\u5411\u5199\u5165\u8fc7\u7a0b\u8bbe\u8ba1\u7684\uff0c\u4e0d\u8981\u8bd5\u56fe\u7528\u5b83\u6765\u63a7\u5236\u5185\u5bb9\u7684\u4fee\u6539\u3002<\/p>\n\n\n\n
\u5047\u8bbe\u6211\u4eec\u8981\u5c06\u6570\u636e\u5185\u5bb9\u5199\u5165\u5230\u76ee\u6807\u6570\u636e\u6d41 AStream \u4e2d\uff1a<\/p>\n\n\n\n
\u7b2c\u4e00\u6b65\uff1a\u6211\u4eec\u9700\u8981\u5b9a\u4e49\u4e00\u4e2a IQJsonStreamEncoder \u7684\u5b9e\u4f8b\uff0c\u5b83\u662f\u4e00\u4e2a\u7ed3\u6784\u4f53\uff0c\u6240\u4ee5\u76f4\u63a5\u5728\u6808\u4e0a\u5b9a\u4e49\u8fd9\u4e2a\u53d8\u91cf\u5373\u53ef\u3002<\/p>\n\n\n\n
var\n AWriter: IQJsonStreamEncoder;<\/code><\/pre>\n\n\n\n\u7b2c\u4e8c\u6b65\uff1a\u521b\u5efa\u5b9e\u4f8b\u5e76\u5efa\u7acb\u4e0e\u76ee\u6807\u6570\u636e\u6d41\u7684\u5173\u8054\uff1a<\/p>\n\n\n\n
AWriter := TQJsonOutputChannel.CreateEncoder(teUtf8, AStream);<\/code><\/pre>\n\n\n\n\u8fd8\u6709\u4e00\u4e2a\u6700\u5927\u5c42\u6570\u9650\u5236\uff0c\u9ed8\u8ba4\u4e3a32\uff0c\u53ef\u4ee5\u901a\u8fc7\u7b2c\u4e09\u4e2a\u53c2\u6570\u4fee\u6539\u3002<\/p>\n\n\n\n
\u7b2c\u4e09\u6b65\uff1a\u5f00\u59cb\u6309\u7167\u6b63\u5e38\u7684\u89c4\u5219\u5199\u5165 JSON \u6570\u636e\u3002<\/p>\n\n\n\n
- \u8c03\u7528 BeginArray \u5f00\u59cb\u4e00\u4e2a\u6570\u7ec4\u5b9a\u4e49\uff0c\u5b83\u5fc5\u9700\u5728\u5143\u7d20\u8f93\u51fa\u5b8c\u6210\u540e\uff0c\u5bf9\u5e94\u4e00\u4e2a EndArray \u8c03\u7528\u6765\u6807\u5fd7\u6b64\u6570\u7ec4\u8f93\u51fa\u7ed3\u675f\u3002\u4e5f\u53ef\u4ee5\u4f7f\u7528 WriteArray \u6765\u5b9a\u4e49\u6570\u7ec4\u3002<\/li>
- \u8c03\u7528 BeginObject \u5f00\u59cb\u4e00\u4e2a\u5bf9\u8c61\u5b9a\u4e49\uff0c\u5b83\u5fc5\u9700\u5728\u5b50\u7ed3\u70b9\u8f93\u51fa\u5b8c\u6210\u540e\uff0c\u5bf9\u5e94\u4e00\u4e2a EndObject \u8c03\u7528\u6765\u6807\u5fd7\u6b64\u5bf9\u8c61\u8f93\u51fa\u7ed3\u675f\u3002\u4e5f\u53ef\u4ee5\u4f7f\u7528 WriteObject \u6765\u5b9a\u4e49\u5bf9\u8c61\u3002<\/li>
- \u8c03\u7528 WriteElement \u65b9\u6cd5\u5199\u5165\u6570\u7ec4\u5143\u7d20\u7684\u503c<\/li>
- \u8c03\u7528 WriteChild \u65b9\u6cd5\u5199\u5165\u666e\u901a\u7c7b\u578b\u7684\u503c<\/li><\/ul>\n\n\n\n
\u7b2c\u56db\u6b65\uff1a\u5df2\u7ecf\u5b8c\u4e8b\u4e86\uff0c\u8865\u5145\u4e00\u70b9\u5427\uff0c\u8fd9\u4e2a\u5199\u5165\u7684JSON\u662f\u4ee5\u538b\u7f29\u683c\u5f0f\u5199\u5165\u7684\uff0c\u6ca1\u6709\u52a0\u5165\u7f29\u8fdb\u652f\u6301\u3002\u53ef\u4ee5\u7528TQJsonInputChannel \u6765\u987a\u5e8f\u8bfb\u53d6\u3002<\/p>\n\n\n\n
\u6700\u540e\uff0c\u6765\u4e00\u6bb5\u793a\u4f8b\u4ee3\u7801\uff0cShow you my code:<\/p>\n\n\n\n
procedure TForm2.SpeedButton1Click(Sender: TObject);\nvar\n AStream: TMemoryStream;\n AJson: TQJson;\n I: Integer;\n AWriter: IQJsonStreamEncoder;\nbegin\n AJson := AcquireJson;\n AStream := TMemoryStream.Create;\n try\n AJson.Add('O').Add('01');\n AJson.AddArray('A');\n AWriter := TQJsonOutputChannel.CreateEncoder(teUtf8, AStream);\n AWriter.BeginArray('');\n for I := 0 to 9 do\n begin\n AWriter.BeginObject('');\n AWriter.WriteChild('Ident', 'Json Stream Writer');\n AWriter.WriteChild('IntValue', I);\n AWriter.WriteChild('FloatValue', Double(1.333 * I));\n AWriter.WriteChild('BoolValue', (I mod 2) = 1);\n AWriter.WriteChild('NullValue');\n AWriter.WriteChild('DateTime', Now);\n AJson.ForcePath('O.01').AsString := I.ToString;\n AWriter.WriteChild('Json', AJson);\n AWriter.EndObject;\n end;\n AWriter.EndArray;\n AStream.Position := 0;\n repeat\n AJson.LoadFromStream(AStream, teUtf8);\n ShowMessage(AJson.Encode(true));\n until AStream.Position = AStream.Size;\n\n finally\n ReleaseJson(AJson);\n FreeAndNil(AStream);\n end;\nend;\n\nprocedure TForm2.SpeedButton2Click(Sender: TObject);\nvar\n AStream: TMemoryStream;\n AJson: TQJson;\n I: Integer;\n AWriter: IQJsonStreamEncoder;\nbegin\n AJson := AcquireJson;\n AStream := TMemoryStream.Create;\n try\n AJson.Add('O').Add('01');\n AJson.AddArray('A');\n AWriter := TQJsonOutputChannel.CreateEncoder(teUtf8, AStream);\n AWriter.WriteArray('',\n procedure(AParent: IQJsonArrayEncoder)\n var\n I: Integer;\n begin\n for I := 0 to 9 do\n begin\n AParent.WriteObject(\n procedure(AObjParent: IQJsonObjectEncoder)\n begin\n AObjParent.Write('Ident', 'Json Stream Writer');\n AObjParent.Write('IntValue', I);\n AObjParent.Write('FloatValue', Double(1.333 * I));\n AObjParent.Write('BoolValue', (I mod 2) = 1);\n AObjParent.Write('NullValue');\n AObjParent.Write('DateTime', Now);\n AJson.ForcePath('O.01').AsString := I.ToString;\n AObjParent.Write('Json', AJson);\n end);\n end\n end);\n AStream.Position := 0;\n repeat\n AJson.LoadFromStream(AStream, teUtf8);\n ShowMessage(AJson.Encode(true));\n until AStream.Position = AStream.Size;\n finally\n ReleaseJson(AJson);\n FreeAndNil(AStream);\n end;\nend;<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"TQJsonOutputChannel […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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