1 int create_objects()
2 {
3 cJSON *root, *fmt, *img, *thm, *fld;
4 char *out;
5 int i; /* The index number. */
6 int ret = 0;
7
8 /* Here we construct several JSON objects. */
9
10 // ------------------构建第1个----------------------
11 /* The "Video" data type: */
12 root = cJSON_CreateObject();
13 cJSON_AddItemToObject(root, "name", cJSON_CreateString("Jack (\"Bee\") Nimble"));
14 cJSON_AddItemToObject(root, "format", fmt = cJSON_CreateObject());
15 cJSON_AddStringToObject(fmt, "type", "rect");
16 cJSON_AddNumberToObject(fmt, "width", 1920);
17 cJSON_AddNumberToObject(fmt, "height", 1080);
18 cJSON_AddFalseToObject (fmt, "interlace");
19 cJSON_AddNumberToObject(fmt, "frame rate", 24);
20
21 out = cJSON_Print(root); /* Print to text */
22 cJSON_Delete(root); /* Delete the cJSON object */
23 LOG_I(cjson_example, "%s\n", out); /* Print out the text */
24 cJSON_free(out); /* Release the string. */
25
26 // ------------------构建第2个----------------------
27 /* The "days of the week" array: */
28 const char *strings[7] = {"Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"};
29 root = cJSON_CreateStringArray(strings, 7);
30
31 out = cJSON_Print(root);
32 cJSON_Delete(root);
33 LOG_I(cjson_example, "%s\n", out);
34 cJSON_free(out);
35
36 // ------------------构建第3个----------------------
37 /* The matrix: */
38 int numbers[3][3] = {{0, -1, 0}, {1, 0, 0}, {0, 0, 1}};
39 root = cJSON_CreateArray();
40 for (i = 0; i < 3; i++) {
41 cJSON_AddItemToArray(root, cJSON_CreateIntArray(numbers[i], 3));
42 }
43
44 /* cJSON_ReplaceItemInArray(root,1,cJSON_CreateString("Replacement")); */
45 out = cJSON_Print(root);
46 cJSON_Delete(root);
47 LOG_I(cjson_example, "%s\n", out);
48 cJSON_free(out);
49
50 // ------------------构建第4个----------------------
51 /* The "gallery" item: */
52 int ids[4] = {116, 943, 234, 38793};
53 root = cJSON_CreateObject();
54 cJSON_AddItemToObject(root, "Image", img = cJSON_CreateObject());
55 cJSON_AddNumberToObject(img, "Width", 800);
56 cJSON_AddNumberToObject(img, "Height", 600);
57 cJSON_AddStringToObject(img, "Title", "View from 15th Floor");
58 cJSON_AddItemToObject(img, "Thumbnail", thm = cJSON_CreateObject());
59 cJSON_AddStringToObject(thm, "Url", "http:/*www.example.com/image/481989943");
60 cJSON_AddNumberToObject(thm, "Height", 125);
61 cJSON_AddStringToObject(thm, "Width", "100");
62 cJSON_AddItemToObject(img, "IDs", cJSON_CreateIntArray(ids, 4));
63
64 out = cJSON_Print(root);
65 cJSON_Delete(root);
66 LOG_I(cjson_example, "%s\n", out);
67 cJSON_free(out);
68
69 // ------------------构建第5个----------------------
70 /* The array of "records": */
71 struct record fields[2] = {
72 {"zip", 37.7668, -1.223959e+2, "", "SAN FRANCISCO", "CA", "94107", "US"},
73 {"zip", 37.371991, -1.22026e+2, "", "SUNNYVALE", "CA", "94085", "US"}
74 };
75
76 root = cJSON_CreateArray();
77 for (i = 0; i < 2; i++) {
78 cJSON_AddItemToArray(root, fld = cJSON_CreateObject());
79 cJSON_AddStringToObject(fld, "precision", fields[i].precision);
80 cJSON_AddNumberToObject(fld, "Latitude", fields[i].lat);
81 cJSON_AddNumberToObject(fld, "Longitude", fields[i].lon);
82 cJSON_AddStringToObject(fld, "Address", fields[i].address);
83 cJSON_AddStringToObject(fld, "City", fields[i].city);
84 cJSON_AddStringToObject(fld, "State", fields[i].state);
85 cJSON_AddStringToObject(fld, "Zip", fields[i].zip);
86 cJSON_AddStringToObject(fld, "Country", fields[i].country);
87 }
88
89 /* cJSON_ReplaceItemInObject(cJSON_GetArrayItem(root,1),"City",cJSON_CreateIntArray(ids,4)); */
90 out = cJSON_Print(root);
91 cJSON_Delete(root);
92 LOG_I(cjson_example, "%s\n", out);
93 cJSON_free(out);
94 return ret;
95 }
1 {
2
3 "name": "Jack (\"Bee\") Nimble",
4
5 "format": {
6
7 "type": "rect",
8
9 "width": 1920,
10
11 "height": 1080,
12
13 "interlace": false,
14
15 "frame rate": 24
16
17 }
18
19 }
20
21 ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"]
22
23 [[0, -1, 0], [1, 0, 0], [0, 0, 1]]
24
25 {
26
27 "Image": {
28
29 "Width": 800,
30
31 "Height": 600,
32
33 "Title": "View from 15th Floor",
34
35 "Thumbnail": {
36
37 "Url": "http:/*www.example.com/image/481989943",
38
39 "Height": 125,
40
41 "Width": "100"
42
43 },
44
45 "IDs": [116, 943, 234, 38793]
46
47 }
48
49 }
50
51 [{
52
53 "precision": "zip",
54
55 "Latitude": 37.7668,
56
57 "Longitude": -122.3958999999999,
58
59 "Address": "",
60
61 "City": "SAN FRANCISCO",
62
63 "State": "CA",
64
65 "Zip": "94107",
66
67 "Country": "US"
68
69 }, {
70
71 "precision": "zip",
72
73 "Latitude": 37.371991,
74
75 "Longitude": -122.02
76 。。。