{"id":537,"date":"2024-05-06T18:17:42","date_gmt":"2024-05-06T10:17:42","guid":{"rendered":"http:\/\/www.madbull.site\/?p=537"},"modified":"2024-06-14T10:07:04","modified_gmt":"2024-06-14T02:07:04","slug":"json-c%e4%bd%bf%e7%94%a8json%e6%a0%bc%e5%bc%8f%e8%a7%a3%e6%9e%90%e5%ad%97%e7%ac%a6%e4%b8%b2","status":"publish","type":"post","link":"https:\/\/www.madbull.site\/?p=537","title":{"rendered":"json-c\u4f7f\u7528json\u683c\u5f0f\u89e3\u6790\u5b57\u7b26\u4e32"},"content":{"rendered":"\n<div class=\"wp-block-group has-global-padding is-layout-constrained wp-block-group-is-layout-constrained\">\n<p><strong>json\u5b57\u7b26\u4e32\uff0c\u4f7f\u7528json\u683c\u5f0f\u505a\u89e3\u6790<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>#include &lt;json-c\/json.h>\n#include &lt;stdio.h>\n\nint main(int argc, char * argv&#91;]) {\n\n    char json_str&#91;2048] = \"&#91;{\\\"aaa\\\":\\\"aa\\\", \\\"iii\\\":111}, {\\\"aaa\\\":\\\"aaaa\\\", \\\"iii\\\":222}, {\\\"aaa\\\":\\\"aaaaaa\\\", \\\"iii\\\":333}]\" ;\n    struct json_object* json_obj = NULL ;\n    struct json_object* json_one = NULL ;\n    struct json_object* json_value = NULL ;\n\n    const char * str_value = NULL ;\n    int int_value = 0 ;\n\n    \/\/ \u5b57\u7b26\u4e32\u8f6c json \u5bf9\u8c61\n    json_obj = <mark style=\"background-color:#b1c5a4\" class=\"has-inline-color\"><strong>json_tokener_parse<\/strong><\/mark>(json_str) ;\n    if (json_obj == NULL ) {\n        printf(\"json_str is not json string, parse error\") ;\n        return -1 ; \n    }\n    \/\/ \u83b7\u53d6 \u6570\u7ec4\u957f\u5ea6\n    int array_size = <strong><mark style=\"background-color:#b1c5a4\" class=\"has-inline-color\">json_object_array_length<\/mark><\/strong>(json_obj) ;\n    \/\/ \u904d\u5386\n    for( int i=0 ; i &lt; array_size ; ++i ) {\n        \/\/ \u6309\u7167 \u7d22\u5f15 \u904d\u5386\n        json_one= <strong><mark style=\"background-color:#b1c5a4\" class=\"has-inline-color\">json_object_array_get_idx<\/mark><\/strong>(json_obj, i) ; \n\n        \/\/ \u901a\u8fc7 key \u83b7\u53d6 value \u5bf9\u8c61\n        <strong><mark style=\"background-color:#b1c5a4\" class=\"has-inline-color\">json_object_object_get_ex<\/mark><\/strong>(json_one, \"aaa\", &amp;json_value);\n        \/\/ \u8f6c\u6362\u6210 \u5b57\u7b26\u4e32\n        str_value = <strong><mark style=\"background-color:#b1c5a4\" class=\"has-inline-color\">json_object_get_string<\/mark><\/strong>(json_value);\n        printf(\"key aaa value &#91;%s]\\n\", str_value) ;\n\n        \/\/ \u901a\u8fc7 key \u83b7\u53d6 value \u5bf9\u8c61\n        <strong><mark style=\"background-color:#b1c5a4\" class=\"has-inline-color\">json_object_object_get_ex<\/mark><\/strong>(json_one, \"iii\", &amp;json_value);\n        \/\/ \u8f6c\u6362\u6210 \u5b57\u7b26\u4e32\n        int_value = <strong><mark style=\"background-color:#b1c5a4\" class=\"has-inline-color\">json_object_get_int<\/mark><\/strong>(json_value);\n        printf(\"key iii value &#91;%d]\\n\", int_value) ;\n    }\n    \/\/ \u7a7a\u95f4\u91ca\u653e\n    <strong><mark style=\"background-color:#b1c5a4\" class=\"has-inline-color\">json_object_put<\/mark><\/strong>(json_obj);\n    return 0 ; 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