结构体数组如何序列化？ #8
Comments
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这个功能现在确实还不支持。你有没有比较好的办法呢？ |
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我这几天绞尽脑汁，勉励改出了一个可以支持的样子，但是却完全失去了原有的样子，不仅有了start和end，而且参数的数量和位置也不再统一。 |
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树的方案是可行的，就是工作量会非常大。 start 和 end 的那个方案改完是什么样子？ |
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大概是这样,可以说非常丑陋了，而且弄得很复杂，感觉也不是很靠谱 typedef struct {
char name[16];
} Hometown;
typedef struct {
int ranking;
int score;
} Results;
typedef struct {
int id;
double weight;
char name[10];
int attendance [10];
Hometown hometown;
Results results[5];
} Student;
/**
* Student JSON object to structure object
*
* @param json_obj JSON object
*
* @return structure object
*/
static void *json_to_struct(json_object* json_obj) {
/* create Student structure object */
s2j_create_struct_obj(struct_student, Student);
/* deserialize data to Student structure object. */
s2j_struct_get_basic_element(struct_student, json_obj, int, id);
s2j_struct_get_basic_element(struct_student, json_obj, double, weight);
s2j_struct_get_basic_element(struct_student, json_obj, string, name);
{
s2j_struct_get_struct_element_start(struct_student, json_obj, int, attendance);
s2j_struct_get_array_element_start(CHILD_STRUCT,CHILD_ELEMENT,int);
s2j_struct_get_array_basic_element(ARRAY_STRUCT, ARRAY_ELEMENT, int, attendance);
s2j_struct_get_array_element_end();
s2j_struct_get_struct_element_end();
}
{
/* deserialize data to Student.Hometown structure object. */
s2j_struct_get_struct_element_start(struct_student, json_obj, Hometown, hometown);
s2j_struct_get_basic_element(CHILD_STRUCT, CHILD_ELEMENT, string, name);
s2j_struct_get_struct_element_end();
}
{
s2j_struct_get_struct_element_start(struct_student, json_obj, Results, results);
s2j_struct_get_array_element_start(CHILD_STRUCT,CHILD_ELEMENT,Results);
s2j_struct_get_basic_element(ARRAY_STRUCT, ARRAY_ELEMENT, int ,ranking);
s2j_struct_get_basic_element(ARRAY_STRUCT, ARRAY_ELEMENT, int ,score);
s2j_struct_get_array_element_end();
s2j_struct_get_struct_element_end();
}
/* return Student structure object pointer */
return struct_student;
}
/**
* Student structure object to JSON object
*
* @param struct_obj structure object
*
* @param JSON object
*/
static json_object *struct_to_json(void* struct_obj) {
Student *struct_student = (Student *)struct_obj;
/* create Student JSON object */
s2j_create_json_obj(json_student);
/* serialize data to Student JSON object. */
s2j_json_set_basic_element(json_student, struct_student, int, id);
s2j_json_set_basic_element(json_student, struct_student, double, weight);
s2j_json_set_basic_element(json_student, struct_student, string, name);
{
s2j_json_set_array_element_start(json_student, int, 10);
s2j_json_set_array_basic_element(ARRAY_ELEMENT, struct_student, int, attendance);
s2j_json_set_array_element_end(json_student, attendance);
}
{
/* serialize data to Student.Hometown JSON object. */
s2j_json_set_struct_element_start(struct_student, Hometown, hometown);
s2j_json_set_basic_element(CHILD_ELEMENT, CHILD_STRUCT, string, name);
s2j_json_set_struct_element_end(json_student, hometown);
}
{
s2j_json_set_array_element_start(json_student, Results, 5);
s2j_json_set_array_struct_element_start(struct_student, Results, results);
s2j_json_set_basic_element(CHILD_ELEMENT, CHILD_STRUCT, int, ranking);
s2j_json_set_basic_element(CHILD_ELEMENT, CHILD_STRUCT, int, score);
s2j_json_set_struct_element_end(ARRAY_ELEMENT, results);
s2j_json_set_array_element_end(json_student, results);
}
/* return Student JSON object pointer */
return json_student;
} |
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可以把 s2j_struct_get_struct_element_start 与 s2j_struct_get_array_element_start ，以及对应的 end 合并为一个吗？ 例如：s2j_struct_get_struct_array_element_start |
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我把他们拆成两个纯粹无奈之举，展开来其实是一个循环，在循环里面遍历struct #define S2J_STRUCT_GET_ARRAY_ELEMENT_START(to_struct, from_json, type) \
{ \
struct json_object *array, *array_element; \
size_t index = 0, size = 0; \
array = from_json; \
if (array) { \
size = json_object_array_length(array); \
while (index < size) { \
array_element = json_object_array_get_idx(array, index); \
if (array_element) { \
type *array_struct = &(((type*)(to_struct))[index]);
#define S2J_STRUCT_GET_ARRAY_ELEMENT_END() \
index++; } \
} \
} \
}
#define S2J_STRUCT_GET_STRUCT_ELEMENT_START(to_struct, from_json, type, _element) \
{ \
type *child_struct = &((to_struct)->_element); \
struct json_object *child_element = json_object_object_get(from_json, #_element); \
if(child_element) {
#define S2J_STRUCT_GET_STRUCT_ELEMENT_END() \
} \
} |
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以下的这个结构体数组，能否转化为json，如果能那种方法比较合适 typedef struct objective { typedef struct OKR { okr okrs[12]; |
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参考下面的分支，已经实现结构体和数组的转换，并提供自动生成转换代码的脚本：） |
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已经实现，自动生成的转换代码示例： void json_to_struct_McBaseOrdrT(cJSON json_obj) #if 0 void json_to_struct_McBaseOrdrArrayT(cJSON json_obj) |
Cool |
如题，目前数组序列化只能是基本类型吗？如果数组里面是结构体这样的嵌套有没有解决办法
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