请教armink，s2j库如何对含有结构体数组的序列化等操作

发布于 2018-12-28 09:43:17 浏览：1702 订阅该版

3 个回答

haov000 2020-03-22

这家伙很懒，什么也没写！

sync 2020-03-25

这家伙很懒，什么也没写！

需要自己写对应的转换函数，例子如下

```
typedef struct {
    char name[16];
} Hometown;

typedef struct {
    uint8_t id;
    double weight;
    uint8_t score[8];
    char name[10];
    Hometown hometown;
} Student;

/**
 * Student JSON object to structure object
 *
 * @param json_obj JSON object
 *
 * @return structure object
 */
static void *json_to_struct(cJSON* 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_array_element(struct_student, json_obj, int, score);
    s2j_struct_get_basic_element(struct_student, json_obj, string, name);
    s2j_struct_get_basic_element(struct_student, json_obj, double, weight);

/* deserialize data to Student.Hometown structure object. */
    s2j_struct_get_struct_element(struct_hometown, struct_student, json_hometown, json_obj, Hometown, hometown);
    s2j_struct_get_basic_element(struct_hometown, json_hometown, string, name);

/* return Student structure object pointer */
    return struct_student;
}

/**
 * Student structure object to JSON object
 *
 * @param struct_obj structure object
 *
 * @param JSON object
 */
static cJSON *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_array_element(json_student, struct_student, int, score, 8);
    s2j_json_set_basic_element(json_student, struct_student, string, name);

/* serialize data to Student.Hometown JSON object. */
    s2j_json_set_struct_element(json_hometown, json_student, struct_hometown, struct_student, Hometown, hometown);
    s2j_json_set_basic_element(json_hometown, struct_hometown, string, name);

/* return Student JSON object pointer */
    return json_student;
}
```