JSON.rar_DelphiJSON_JSON_delphijson_jsondelphi资源-CSDN文库

共16个文件

dcu：3个

pas：3个

txt：2个

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json

delphi_json

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JSON（JavaScript Object Notation）是一种轻量级的数据交换格式，被广泛用于Web应用程序之间的数据传输。在Delphi编程环境中，处理JSON数据是非常常见的任务，因为它的简洁性和易读性使得数据序列化和反序列化变得高效。本压缩包"JSON.rar"包含的是使用Delphi处理JSON的源代码示例，帮助开发者理解和应用JSON与数据库表数据的交互。 Delphi是Embarcadero Technologies开发的一种集成开发环境（IDE），主要用于Windows平台的应用程序开发，它支持多种编程范式，包括面向对象编程。Delphi的VCL（Visual Component Library）框架提供了一系列强大的类库，其中就包含了处理JSON的TJSONObject、TJSONArray等组件，这些组件属于System.JSON单元。在Delphi中，使用JSON通常涉及以下步骤： 1. **序列化**：将数据结构转换为JSON字符串。例如，你可能有一个记录或对象，你想要将其转换成JSON以便在网络上传输。可以使用TJSONObject和TJSONPair类来构建JSON对象，TJSONArray用于创建数组。对于数据库中的表，可以逐行读取数据，然后创建相应的JSON对象，将每行数据转换为JSON格式。 2. **解析JSON**：从JSON字符串中提取数据。Delphi提供了JSONValue类，它可以解析JSON字符串并生成一个TJSONValue对象树，这个树可以遍历以获取数据。TJSONValue对象有ToJSONObject和ToJSONArray方法，可以将JSON字符串转换为对应的TJSONObject和TJSONArray对象。 3. **保存到数据库**：解析后的JSON数据可以插入到数据库表中。通常，这需要将JSON对象的字段映射到数据库表的列，然后执行SQL INSERT语句。在Delphi中，可以使用ADO（ActiveX Data Objects）或DBX（DataSnap XE）等库与各种数据库系统交互。 4. **读取数据库**：从数据库中查询数据，然后转换为JSON格式。这涉及到执行SELECT语句，获取结果集，然后将每一行数据构造成JSON对象。 5. **错误处理**：在处理JSON时，可能会遇到语法错误、编码问题或数据不匹配等问题。Delphi提供了异常处理机制，可以捕获并处理这些错误。 6. **性能优化**：对于大量数据，优化JSON序列化和解析的性能至关重要。Delphi提供了一些高级功能，如流处理，以提高处理速度。在压缩包"JSON.rar"中的源代码，很可能是展示了如何在Delphi应用程序中实现上述步骤的一个实例。通过对这些源代码的学习，开发者可以深入理解如何在Delphi中有效地使用JSON，从而提高数据处理效率，并与Web服务或其他使用JSON的应用程序进行无缝通信。通过实践和调试这些代码，你将能够掌握Delphi与JSON交互的关键技巧，这对于任何Delphi开发者来说都是宝贵的技能。

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JSON.rar （16个子文件）

JSON

Project1_MemoryManager_EventLog.txt 2.59MB

Database

mycombPos.mdb 524KB

Project1.exe 929KB

Project1.res 876B

myJSON.dcu 44KB

jsonConversion.dcu 11KB

Unit1.dfm 3KB

Unit1.ddp 51B

Project1.cfg 434B

Unit1.pas 4KB

myJSON.pas 68KB

Project1.dpr 316B

Project1.dof 3KB

Source.txt 3KB

Unit1.dcu 8KB

jsonConversion.pas 10KB

--------------------------------2011/9/17 17:26:42-------------------------------- A memory block has been leaked. The size is: 20 The block is currently used for an object of class: Unknown The allocation number is: 1312 Current memory dump of 256 bytes starting at pointer address 7FEFEB20: B0 0F F9 7F B0 0F F9 7F 01 04 00 00 00 8C 1C 91 07 1E 0B D7 FF 80 80 80 00 00 00 00 01 EA EF 7F 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 5F 03 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 EC 09 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 EC 09 00 00 10 00 00 00 04 0E 42 00 8B 10 32 80 A8 AC 4B 00 80 80 80 80 80 80 80 80 80 80 80 80 74 EF CD 7F 80 80 80 80 00 00 00 00 41 EB EF 7F 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 60 03 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ° . ù ° . ù . . . . . . . . . × ÿ . . . . . ê ï . . . . . . . . . . . . . . . . _ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ì . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ì . . . . . . . . . B . . 2 ¨ ¬ K . t ï Í . . . . A ë ï . . . . . . . . . . . . . . . . ` . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . --------------------------------2011/9/17 17:26:42-------------------------------- A memory block has been leaked. The size is: 20 The block is currently used for an object of class: Unknown The allocation number is: 1295 Current memory dump of 256 bytes starting at pointer address 7FF00EC0: B0 0F F9 7F 20 EB EF 7F 01 00 00 00 00 EC 1E 16 00 CF 2F CF 7F 80 80 80 00 00 00 00 40 E9 EF 7F 00 00 00 00 00 00 00 00 F8 A8 40 00 00 00 00 00 13 05 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 EC 09 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 11 00 00 00 00 00 00 00 E8 C6 30 80 00 10 F0 7F C0 0E F0 7F 02 01 00 00 00 F4 A4 1A 00 17 39 CF 7F 80 80 80 00 00 00 00 40 E9 EF 7F 00 00 00 00 00 00 00 00 F8 A8 40 00 00 00 00 00 17 05 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ° . ù ë ï . . . . . ì . . . Ï / Ï . . . . @ é ï . . . . . . . . ø ¨ @ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ì . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . è Æ 0 . . ð À . ð . . . . . ô ¤ . . . 9 Ï . . . . @ é ï . . . . . . . . ø ¨ @ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . --------------------------------2011/9/17 17:26:42-------------------------------- A memory block has been leaked. The size is: 20 The block is currently used for an object of class: Unknown The allocation number is: 1299 Current memory dump of 256 bytes starting at pointer address 7FF00F60: 00 10 F0 7F C0 0E F0 7F 02 01 00 00 00 F4 A4 1A 00 17 39 CF 7F 80 80 80 00 00 00 00 40 E9 EF 7F 00 00 00 00 00 00 00 00 F8 A8 40 00 00 00 00 00 17 05 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 EC 09 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 11 00 00 00 00 00 00 00 8C C7 30 80 B0 0F F9 7F A0 10 F0 7F 01 02 00 00 00 6C 16 16 00 73 38 CF 7F 80 80 80 00 00 00 00 40 E9 EF 7F 00 00 00 00 00 00 00 00 F8 A8 40 00 00 00 00 00 1B 05 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 . . ð À . ð . . . . . ô ¤ . . . 9 Ï . . . . @ é ï . . . . . . . . ø ¨ @ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ì . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ç 0 ° . ù . ð . . . . . l . . . s 8 Ï . . . . @ é ï . . . . . . . . ø ¨ @ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . --------------------------------2011/9/17 17:26:42-------------------------------- A memory block has been leaked. The size is: 20 The block is currently used for an object of class: Unknown The allocation number is: 1303 Current memory dump of 256 bytes starting at pointer address 7FF01000: B0 0F F9 7F A0 10 F0 7F 01 02 00 00 00 6C 16 16 00 73 38 CF 7F 80 80 80 00 00 00 00 40 E9 EF 7F 00 00 00 00 00 00 00 00 F8 A8 40 00 00 00 00 00 1B 05 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 EC 09 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 11 00 00 00 00 00 00 00 30 C8 30 80 B0 0F F9 7F B0 0F F9 7F 01 03 00 00 00 5C 6E 16 00 CF 37 CF 7F 80 80 80 00 00 00 00 C1 15 F0 7F 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 55 08 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ° . ù . ð . . . . . l . . . s 8 Ï . . . . @ é ï . . . . . . . . ø ¨ @ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ì . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 È 0 ° . ù ° . ù . . . . . \ n . . Ï 7 Ï . . . . Á . ð . . . . . . . . . . . . . . . . U . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . --------------------------------2011/9/17 17:26:42-------------------------------- A memory block has been leaked. The size is: 20 The block is currently used for an object of class: Unknown The allocation number is: 1307 Current memory dump of 256 bytes starting at pointer address 7FF010A0: B0 0F F9 7F B0 0F F9 7F 01 03 00 00 00 5C 6E 16 00 CF 37 CF 7F 80 80 80 00 00 00 00 C1 15 F0 7F 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 55 08 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 EC 0