Question

我想要一个JSonArray作为输出。我希望在该数组中添加json字符串。我正在使用json-glib和C ++。我在谷歌上搜索了很多，但都是徒劳的。我想要这样的东西：

[{＆＃34; id＆＃34;：＆＃34; i_am_id＆＃34;，＆＃34;客户＆＃34;：＆＃34; i_am_C＆＃34; ，＆＃34; tag＆＃34;：[{＆＃34; one＆＃34;：＆＃34; value＆＃34;，＆＃34; two＆＃34;：＆＃34; value＆＃34;}]} ，{}，{}]

＆＃34;标记＆＃34;是写的字符串的jsonarray。我想要一个像这样的jsonarray，其中有像string，int，jsonarrays这样的字段。请帮帮我。

Answer 1

我没有使用json-glib，
我无法测试这段代码，
我省略了部分以释放builder s，
但我希望这会对你有所帮助：

// build an object as an element of 'tag' array.
// {"one": "value", "two": "value"}
JsonNode * objectAsElementOfTag;
{
  JsonBuilder *builder = json_builder_new ();
  json_builder_begin_object (builder);

  json_builder_set_member_name (builder, "one");
  json_builder_add_string_value (builder, "value");

  json_builder_set_member_name (builder, "two");
  json_builder_add_string_value (builder, "value");

  json_builder_end_object (builder);
  objectAsElementOfTag = json_builder_get_root (builder);
}

// build 'tag' array.
// [{"one": "value", "two": "value"}]
JsonNode * tagArray;
{
  JsonBuilder *builder = json_builder_new ();
  json_builder_begin_array (builder);

  json_builder_add_value (builder, objectAsElementOfTag);

  json_builder_end_array (builder);
  tagArray = json_builder_get_root (builder);
}

// build the first element.
// {"id": "i_am_id", "client":"i_am_C" ,"tag": [{"one": "value", "two": "value"}] }
JsonNode * firstElement;
{
  JsonBuilder *builder = json_builder_new ();
  json_builder_begin_object (builder);

  json_builder_set_member_name (builder, "id");
  json_builder_add_string_value (builder, "i_am_id");

  json_builder_set_member_name (builder, "client");
  json_builder_add_string_value (builder, "i_am_C");

  json_builder_set_member_name (builder, "tag");
  json_builder_add_value (builder, tagArray);

  json_builder_end_object (builder);
  firstElement = json_builder_get_root (builder);
}

// build the second element(an empty object).
// {}
JsonNode * secondElement;
{
  JsonBuilder *builder = json_builder_new ();
  json_builder_begin_object (builder);

  json_builder_end_object (builder);
  secondElement = json_builder_get_root (builder);
}

// build the third element(an empty object).
// {}
JsonNode * thirdElement;
{
  JsonBuilder *builder = json_builder_new ();
  json_builder_begin_object (builder);

  json_builder_end_object (builder);
  thirdElement = json_builder_get_root (builder);
}

// finally, build the root array which may be what you want.
// [ {"id": "i_am_id", "client":"i_am_C" ,"tag": [{"one": "value", "two": "value"}] } ,{} ,{} ]
JsonNode * rootArray;
{
  JsonBuilder *builder = json_builder_new ();
  json_builder_begin_array (builder);

  json_builder_add_value (builder, firstElement);
  json_builder_add_value (builder, secondElement);
  json_builder_add_value (builder, thirdElement);

  json_builder_end_array (builder);
  rootArray = json_builder_get_root (builder);
}

如何在一个JsonArray中添加许多json字符串？

1 个答案: