{"id":2963,"date":"2015-10-23T09:30:34","date_gmt":"2015-10-23T01:30:34","guid":{"rendered":"http:\/\/blog.qdac.cc\/?p=2963"},"modified":"2015-10-23T09:30:34","modified_gmt":"2015-10-23T01:30:34","slug":"qjson-%e4%bd%bf%e7%94%a8-qjson-%e7%9a%84%e4%b8%80%e4%ba%9b%e5%87%bd%e6%95%b0%e6%97%b6%e7%9a%84%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a1%b9","status":"publish","type":"post","link":"https:\/\/blog.qdac.cc\/?p=2963","title":{"rendered":"[QJSON] \u4f7f\u7528 QJSON \u7684\u4e00\u4e9b\u51fd\u6570\u65f6\u7684\u6ce8\u610f\u4e8b\u9879"},"content":{"rendered":"

QJSON \u63a8\u51fa\u5df2\u7ecf\u6709\u76f8\u5f53\u4e00\u6bb5\u65f6\u95f4\u4e86\uff0c\u7ecf\u8fc7\u8fd9\u4e48\u591a\u7248\u672c\u7684\u66f4\u65b0\uff0c\u5230\u4e86\u8be5\u56de\u987e\u4e00\u4e0b\u7684\u65f6\u5019\u3002\u4eca\u5929\u8fd9\u7bc7\u6587\u7ae0\u7b97\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u603b\u7ed3\u56de\u987e\uff0c\u5bf9\u5927\u5bb6\u4f7f\u7528 QJSON \u8fc7\u7a0b\u4e2d\u9047\u5230\u7684\u5e38\u89c1\u95ee\u9898\u505a\u4e00\u4e2a\u7b80\u5355\u7684\u5c0f\u7ed3\u3002<\/p>\n

1\u3001Add \u7cfb\u5217\u51fd\u6570<\/h4>\n

Add \u7cfb\u5217\u51fd\u6570\u7528\u4e8e\u6dfb\u52a0\u4e00\u4e2a\u5b50\u7ed3\u70b9\uff0c\u5b83\u6709 n \u4e2a\u91cd\u8f7d\u7684\u7248\u672c\uff0c\u6700\u8ba9\u5927\u5bb6\u7591\u60d1\u7684\u662f\u4e0b\u9762\u7684\u8fd9\u4e2a\u91cd\u8f7d\uff1a<\/p>\n

function TQJson.Add(AName, AValue: QStringW; ADataType: TQJsonDataType): Integer;<\/pre>\n
\u8fd9\u4e2a\u91cd\u8f7d\u5728\u4f7f\u7528\u65f6\u8981\u6ce8\u610f\uff0cAName \u662f\u7ed3\u70b9\u7684\u540d\u79f0\uff0c\u8fd9\u4e2a\u6ca1\u6709\u95ee\u9898\u3002AValue \u662f\u7528\u5b57\u7b26\u4e32\u8868\u8fbe\u7684\u65b0\u7684 JSON \u7ed3\u70b9\u7684\u503c\uff0c\u5b83\u5177\u4f53\u7684\u542b\u4e49\u53d6\u51b3\u4e8e\u6700\u540e\u4e00\u4e2a\u53c2\u6570 ADataType\uff0c\u5982\u679c ADataType \u4e3a jdtUnknown\uff08\u9ed8\u8ba4\u503c\uff09\uff0c\u5219\u6b64\u51fd\u6570\u4f1a\u8ba4\u4e3a\u662f\u9700\u8981\u5b83\u81ea\u52a8\u53bb\u68c0\u6d4b AValue \u7684\u503c\u7684\u7c7b\u578b\u3002\u800c\u68c0\u6d4b\u7684\u89c4\u5219\u662f\u5c1d\u8bd5\u8f6c\u6362\u4e3a\u6700\u8d34\u5207\u7684\u7c7b\u578b\uff0c\u5982\uff1a<\/p>\n
AJson.Add(‘Int’,’100′);<\/p><\/blockquote>\n
\u8fd9\u53e5\u4ee3\u7801\u5c06\u4f1a\u521b\u5efa\u4e00\u4e2a\u6574\u6570\u7c7b\u578b\u7684\u5b50\u7ed3\u70b9\uff0c\u503c\u4e3a100\uff0c\u540c\u6837\u7684\uff0c\u4e0b\u9762\u7684\u4ee3\u7801\uff1a<\/p>\n
AJson.Add(‘Float’,’1.23′);<\/p>\n
AJson.Add(‘Bool’,’true’);<\/p>\n
AJson.Add(‘Array’,'[1,2,3]’);<\/p>\n
AJson.Add(‘Obj’,'{“a”:100,”b”:”nameb”}’);<\/p><\/blockquote>\n
\u5c06\u5206\u522b\u6dfb\u52a0\u6d6e\u70b9\u3001\u5e03\u5c14\u3001\u6570\u7ec4\u3001\u5bf9\u8c61\u7c7b\u578b\u7684\u5b50\u7ed3\u70b9\u3002\u5982\u679c\u65e0\u6cd5\u5339\u914d\u9ed8\u8ba4\u7684\u7c7b\u578b\uff0c\u5219\u4f1a\u5c06\u8be5\u503c\u5f53\u6210\u4e00\u4e2a\u5b57\u7b26\u4e32\u503c\u6765\u5904\u7406\u3002<\/p>\n
\u4f7f\u7528 Add \u7cfb\u5217\u51fd\u6570\u65f6\uff0c\u9700\u8981\u6ce8\u610f\u4e00\u70b9\uff1a\u5b83\u4e0d\u4f1a\u68c0\u67e5\u662f\u5426\u6709\u5b50\u7ed3\u70b9\uff08\u6bd5\u7adf\u68c0\u67e5\u9700\u8981\u8017\u65f6\uff0c\u800c\u4e14\u7edd\u5927\u591a\u6570\u5e94\u7528\u73af\u5883\u4e0d\u4f1a\u91cd\u590d\uff09\uff0c\u6240\u4ee5\uff0c\u9700\u8981\u8c03\u7528\u8005\u81ea\u5df1\u4fdd\u8bc1\u4e0d\u4f1a\u51fa\u73b0\u91cd\u590d\u7684\u540d\u79f0\u3002<\/p>\n
2\u3001ForceName \u548c ForcePath \u7684\u533a\u522b<\/h4>\n
ForceName \u662f\u5728\u5f53\u524d\u7ed3\u70b9\u4e0b\u4fdd\u8bc1\u62e5\u6709\u4e00\u4e2a\u6307\u5b9a\u540d\u79f0\u7684\u5b50\u7ed3\u70b9\uff0c\u800c ForcePath \u662f\u5728\u5f53\u524d\u7ed3\u70b9\u4e0b\uff0c\u4fdd\u8bc1\u6709\u4e00\u4e2a\u7b26\u5408\u6307\u5b9a\u8def\u5f84\u8981\u6c42\u7684\u5b50\u7ed3\u70b9\u3002\u5b83\u4fe9\u7684\u533a\u522b\u9996\u5148\u5728\u4e8e ForcePath \u4f1a\u89e3\u6790\u4f20\u8fdb\u53bb\u7684 APath \u53c2\u6570\uff0c\u7136\u540e\u6839\u636e Path \u7684\u89e3\u6790\u7ed3\u679c\uff0c\u9010\u7ea7\u68c0\u67e5\u5e76\u786e\u8ba4\u5b58\u5728\u6307\u5b9a\u540d\u79f0\u7684\u5404\u7ea7\u5b50\u7ed3\u70b9\uff0c\u800c ForceName \u4f1a\u5c06\u4f20\u8fdb\u6765\u7684 AName \u00a0\u53c2\u6570\uff0c\u4e0d\u4f1a\u53bb\u89e3\u6790\u91cc\u9762\u7684\u7279\u6b8a\u5b57\u7b26\uff0c\u4ece\u800c\u53ef\u4ee5\u5b9e\u73b0\u521b\u5efa\u5305\u542b\u7279\u6b8a\u540d\u79f0\u7684\u7ed3\u70b9\uff08\u5982\u8def\u5f84\u5206\u9694\u7b26\u3001\u4e2d\u62ec\u53f7\u7b49 ForcePath \u51fd\u6570\u7528\u4e8e\u89e3\u6790\u7684\u7279\u5b9a\u5b57\u7b26\uff09\u3002\u5982\uff1a<\/p>\n
AJson.ForcePath(‘a.b’);<\/p>\n
AJson.ForceName(‘a.b’);<\/p><\/blockquote>\n
\u524d\u8005\u4f1a\u786e\u4fdd\u5f53\u524d AJson \u5bf9\u8c61\u4e0b\u9762\u6709\u4e00\u4e2a\u5b50\u5bf9\u8c61\uff0c\u540d\u4e3a \u201ca\u201d\uff0c\u800c\u5728\u8be5\u5b50\u5bf9\u8c61\u4e0b\uff0c\u5b58\u5728\u4e00\u4e2a\u7ed3\u70b9\uff0c\u540d\u4e3a \u201cb\u201d\u3002\u540e\u8005\u5219\u4f1a\u786e\u4fdd\u5f53\u524d\u7ed3\u70b9\u4e0b\u4f1a\u6709\u4e00\u4e2a\u540d\u4e3a \u201ca.b\u201d \u7684\u5b50\u5bf9\u8c61\u3002\u524d\u8005\u8f6c\u6362\u6210 JSON \u7684\u8bdd\u5c31\u662f\uff1a<\/p>\n
{<\/p>\n
“a”:{<\/p>\n
“b”:null<\/p>\n
}<\/p>\n
}<\/p><\/blockquote>\n
\u800c\u540e\u8005\u8f6c\u6362\u6210 JSON \u7684\u8bdd\uff0c\u5c31\u662f\uff1a<\/p>\n
{<\/p>\n
“a.b”:null<\/p>\n
}<\/p><\/blockquote>\n
3\u3001IndexOf \u00a0\u548c ItemByName \u7684\u533a\u522b<\/h4>\n
IndexOf \u7528\u4e8e\u8fd4\u56de\u6307\u5b9a\u540d\u79f0\u7684\u5b50\u7ed3\u70b9\u7684\u7d22\u5f15\uff0cItemByName \u7528\u4e8e\u8fd4\u56de\u6307\u5b9a\u540d\u79f0\u7684\u5b50\u7ed3\u70b9\uff0c\u5b9e\u9645\u4e0a\uff0cItemByName \u5185\u90e8\u8c03\u7528\u4e86 IndexOf \u51fd\u6570\uff0c\u4f46\u5b83\u4fe9\u5728\u89e3\u6790\u7ed3\u70b9\u540d\u79f0\u65f6\u7684\u533a\u522b\u8fd8\u662f\u6709\u7684\uff1aIndexOf \u51fd\u6570\u4e0d\u4f1a\u89e3\u6790\u4f20\u5165\u7684\u540d\u79f0\uff0c\u800c ItemByName \u4f1a\u89e3\u6790\u4f20\u5165\u7684\u540d\u79f0\uff0c\u4ee5\u4fbf\u80fd\u591f\u901a\u8fc7\u7d22\u5f15\u6765\u8bbf\u95ee\u6570\u7ec4\u6216\u5bf9\u8c61\u7684\u6307\u5b9a\u5143\u7d20\u3002\u4e5f\u5c31\u662f\u8bf4\uff0c\u4e0b\u9762\u7684\u4ee3\u7801\uff1a<\/p>\n
AJson.IndexOf(‘[0]’);<\/p>\n
AJson.ItemByName(‘[0]’);<\/p><\/blockquote>\n
\u524d\u8005\u662f\u8981\u67e5\u627e\u540d\u4e3a \u201c[0]\u201d \u7684\u5b50\u7ed3\u70b9\uff0c\u540e\u8005\u5219\u662f\u8981\u67e5\u627e\u81ea\u5df1\u7684\u7b2c\u4e00\u4e2a\u5b50\u5143\u7d20\u3002<\/p>\n
4\u3001AsJson\u3001AsString\u3001ToString\u3001Encode\u3001Value \u7684\u533a\u522b<\/h4>\n
\u9996\u5148\uff0cAsJson\u3001AsString\u3001ToString\u3001Value \u7684\u57fa\u7840\u90fd\u662f Encode \u51fd\u6570\uff0c\u4f46\u5b83\u4eec\u5374\u7565\u6709\u533a\u522b\uff1a<\/p>\n
    \n
  • AsJson \u8fd4\u56de\u683c\u5f0f\u5316\u7684 JSON \u5b57\u7b26\u4e32\uff0c\u4f46\u4e0d\u4f1a\u5bf9\u5185\u5bb9\u8fdb\u884c\u8f6c\u4e49\u5904\u7406\uff1b<\/li>\n
  • AsString \u5728\u6570\u636e\u7c7b\u578b\u4e3a jdtNull \u6216 jdtUnknown \u65f6\u8fd4\u56de\u7a7a\u5b57\u7b26\u4e32\uff0c\u5176\u5b83\u7684\u60c5\u51b5\u7b49\u4ef7\u4e8e Value\uff1b<\/li>\n
  • Value \u76f4\u63a5\u8fd4\u56de\u5f53\u524d\u7ed3\u70b9\u7684\u5b57\u7b26\u4e32\u8868\u8fbe\uff0c\u6211\u4eec\u53ef\u4ee5\u8ba4\u4e3a\u5176\u7b49\u4ef7\u4e8e AsJson\uff1b<\/li>\n
  • ToString \u5219\u662f\u91cd\u8f7d\u7684\u57fa\u7c7b\u7684\u51fd\u6570\uff0c\u7b49\u4ef7\u4e8e AsString\uff1b<\/li>\n
  • Encode \u51fd\u6570\u662f\u7528\u4e8e\u8ba9\u4f60\u81ea\u7531\u63a7\u5236\u5c06 JSON \u5bf9\u8c61\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u7684\u683c\u5f0f\uff0c\u662f\u4e0a\u8ff0\u6240\u6709\u5c5e\u6027\u7684\u57fa\u7840\u3002\u4f60\u53ef\u4ee5\u81ea\u7531\u63a7\u5236\u5176\u662f\u5426\u683c\u5f0f\u5316 JSON \u7ed3\u679c\uff0c\u662f\u5426\u8f6c\u4e49\u53ca\u7f29\u8fdb\u65b9\u5f0f\u5b57\u7b26\u4e32\uff1b<\/li>\n<\/ul>\n
    5\u3001\u5173\u4e8e\u65e5\u671f\u65f6\u95f4\u7c7b\u578b<\/h4>\n
    \u65e5\u671f\u65f6\u95f4\u7c7b\u578b\u4e0d\u662f JSON \u6807\u51c6\u7684\u6570\u636e\u7c7b\u578b\uff0cQJSON \u53ea\u6240\u4ee5\u5355\u72ec\u63d0\u51fa\u6765\uff0c\u662f\u4e3a\u4e86\u65b9\u4fbf\u4f7f\u7528\uff0c\u5185\u90e8\u5b9e\u9645\u4e0a\u662f\u4f7f\u7528\u5b57\u7b26\u4e32\u6765\u5b58\u8d2e\u7684\u3002\u6240\u4ee5\uff0c\u4f60\u5224\u65ad\u5176 DataType \u65f6\uff0c\u53ef\u80fd\u5f97\u5230\u7684\u7ed3\u679c\u662f jdtString \u800c\u9020\u6210\u8bef\u5224\u3002\u800c\u901a\u8fc7 IsDateTime \u5c5e\u6027\uff0c\u53ef\u4ee5\u5224\u5b9a\u8fd9\u4e2a\u503c\u662f\u5426\u80fd\u591f\u8f6c\u6362\u4e3a\u65e5\u671f\u65f6\u95f4\u7c7b\u578b\u3002<\/p>\n
    6\u3001\u5173\u4e8e\u4e8c\u8fdb\u5236\u7c7b\u578b<\/h4>\n
    JSON \u540c\u6837\u4e0d\u652f\u6301\u4e8c\u8fdb\u5236\u6570\u636e\u7c7b\u578b\uff0cQJSON \u63d0\u4f9b\u4e86\u51e0\u4e2a\u51fd\u6570\u5141\u8bb8\u60a8\u6309\u4e8c\u8fdb\u5236\u65b9\u5f0f\u8bbf\u95ee\u3002\u540c\u6837\u7684\uff0c\u5b83\u5728\u5185\u90e8\u4e5f\u4f1a\u7f16\u7801\u4e3a\u5b57\u7b26\u4e32\u6765\u5b58\u8d2e\uff0c\u7f16\u7801\u7684\u65b9\u5f0f\u53d6\u51b3\u4e8e\u00a0OnQJsonEncodeBytes \u56de\u8c03\u51fd\u6570\uff0c\u5982\u679c\u4e0d\u63d0\u4f9b\uff0c\u5219\u76f4\u63a5\u6309\u5341\u516d\u8fdb\u5236\u7f16\u7801\uff0c\u5982\u679c\u6307\u5b9a\u5219\u6309\u6307\u5b9a\u7684\u89c4\u5219\u5904\u7406\u3002QJSON \u5355\u5143\u76f4\u63a5\u63d0\u4f9b\u4e86\u4e00\u4e2a\u00a0EncodeJsonBinaryAsBase64 \u51fd\u6570\uff0c\u6765\u8bbe\u7f6e\u5168\u5c40\u7684 OnQJsonEncodeBytes \u6307\u5411\u5185\u90e8\u7684 Base64 \u7f16\u7801\u51fd\u6570\u3002\u540c\u6837\uff0c\u4e8c\u8fdb\u5236\u6570\u636e\u7c7b\u578b\u7531\u5b57\u7b26\u4e32\u8f6c\u6362\u56de\u4e8c\u8fdb\u5236\u9700\u8981\u63d0\u4f9b\u4e00\u4e2a\u00a0OnQJsonDecodeBytes \u56de\u8c03\u51fd\u6570\u3002<\/p>\n
    7\u3001\u5173\u4e8e\u6570\u7ec4\u7c7b\u578b\u5b50\u5143\u7d20\u7684\u540d\u79f0<\/h4>\n
    JSON \u7684\u6570\u7ec4\u5143\u7d20\u662f\u6ca1\u6709\u540d\u79f0\u7684\uff0c\u6240\u4ee5\uff0cQJSON \u5728\u6570\u7ec4\u7c7b\u578b\u7684\u7ed3\u70b9\u4fdd\u5b58\u65f6\uff0c\u5982\u679c\u4f60\u6307\u5b9a\u4e86\u5143\u7d20\u7684\u540d\u79f0\uff0c\u4fdd\u5b58\u65f6\u4f1a\u5ffd\u7565\u6389\uff0c\u6240\u4ee5\u5b83\u7684\u540d\u79f0\u662f\u6ca1\u6709\u610f\u4e49\u7684\uff0c\u4f46\u4f60\u6dfb\u52a0\u65f6\u6307\u5b9a\u4e86\u4e5f\u4e0d\u4f1a\u62a5\u9519\u3002<\/p>\n
    8\u3001\u5173\u4e8e IgnoreCase \u5c5e\u6027<\/h4>\n
    IgnoreCase \u9ed8\u8ba4\u662f\u7ee7\u627f\u81ea\u5168\u5c40\u7684 JsonCaseSensitive \u503c\u3002\u4f46\u5bf9\u4e8e\u5177\u4f53\u7684\u5bf9\u8c61\uff0c\u60a8\u53ef\u4ee5\u6539\u53d8\u5b83\uff0c\u6539\u53d8\u5b83\u5c06\u5f71\u54cd\u6574\u4e2a JSON \u7ed3\u70b9\u6811\uff0c\u4f46\u4e0d\u4f1a\u5f71\u54cd\u4e0d\u5728\u6b64\u6811\u7684\u5176\u5b83 JSON \u5bf9\u8c61\u3002<\/p>\n
     <\/p>\n","protected":false},"excerpt":{"rendered":"
    QJSON \u63a8\u51fa\u5df2\u7ecf\u6709\u76f8\u5f53\u4e00\u6bb5\u65f6\u95f4\u4e86\uff0c\u7ecf […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","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 center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[69,8,9,7],"tags":[],"class_list":["post-2963","post","type-post","status-publish","format-standard","hentry","category-c-builder","category-delphi","category-qdac","category-qjson"],"views":5429,"_links":{"self":[{"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=\/wp\/v2\/posts\/2963","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2963"}],"version-history":[{"count":2,"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=\/wp\/v2\/posts\/2963\/revisions"}],"predecessor-version":[{"id":2965,"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=\/wp\/v2\/posts\/2963\/revisions\/2965"}],"wp:attachment":[{"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2963"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2963"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2963"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}