cJSON的创建

最新推荐文章于 2024-05-14 04:07:42 发布

原创最新推荐文章于 2024-05-14 04:07:42 发布 · 994 阅读

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这篇博客介绍了如何在项目中创建并使用cJSON库来解析和操作JSON数据，包括对JSON对象的创建、查找和修改等基本操作。通过示例展示了如何处理JSON格式的数据结构，如Glossary、GlossDiv和GlossList等。

目标文本

{
   "glossary":   {
       "title":   "example glossary",
       "GlossDiv":   {
           "title":   "S",
           "GlossList":   {
               "GlossEntry":   {
                   "ID":   "SGML",
                   "SortAs":   "SGML",
                   "GlossTerm":   "Standard Generalized Markup Language",
                   "Acronym":   "SGML",
                   "Abbrev":   "ISO 8879:1986",
                   "GlossDef":   {
                       "para":   "A meta-markup language, used to create markup languages such as DocBook.",
                       "GlossSeeAlso":   ["GML", "XML"]
                   },
                   "GlossSee":   "markup"
               }
           }
       }
   }
}

//创建根对象
    CJSON *root=CJSON_CreateObject();
    CJSON *glossary=CJSON_AddObjectToObject(root,"glossary");
    CJSON_AddStringToObject(glossary,"title","example glossary");
    CJSON *GlossDiv=CJSON_AddObjectToObject(glossary,"GlossDiv");
    CJSON_AddStringToObject(GlossDiv,"title","S");
    CJSON *GlossList=CJSON_AddObjectToObject(GlossDiv,"GlossList");
    CJSON *GlossEntry=CJSON_AddObjectToObject(GlossList,"GlossEntry");
    CJSON_AddStringToObject(GlossEntry,"ID","SGML");
    CJSON_AddStringToObject(GlossEntry,"SortAs","SGML");
    CJSON_AddStringToObject(GlossEntry,"GlossTerm","Standard Generalized Markup Language");
    CJSON_AddStringToObject(GlossEntry,"Acronym","SGML");
    CJSON_AddStringToObject(GlossEntry,"Abbrev","ISO 8879:1986");
    CJSON *GlossDef=CJSON_AddObjectToObject(GlossEntry,"GlossDef");
    CJSON_AddStringToObject(GlossEntry,"GlossSee","markup");
    CJSON_AddStringToObject(GlossDef,"para","A meta-markup language, used to create markup languages such as DocBook.");
    CJSON *GlossSeeAlso=CJSON_AddArrayToObject(GlossDef,"GlossSeeAlso");
    CJSON_AddItemToArray(GlossSeeAlso,CJSON_CreateString("GML"));
    CJSON_AddItemToArray(GlossSeeAlso,CJSON_CreateString("XML"));
    printf("%s",CJSON_Print(root));
    FILE *fp=fopen("test.json","w+");
    fprintf(fp,"%s",CJSON_Print(root));
    fclose(fp);