json schema校验

工作中使用到了json schema格式校验的问题，在网上查了些资料，结合自己的理解记录一下。

json schema可以对json结果字符串做出一些约束，例如：

1. 值类型是：array, object, number, string等等

2.值类型必须是枚举中的一个

3. 字符串的长度限制

4. 对字符串判断是否符合正则表达式

5. array元素个数

6. object对象必要属性

测试schema文件

 1 {
 2     "$schema": "http://json-schema.org/draft-04/schema#",
 3     "title": "Product set",
 4     "type": "array",
 5     "items": {
 6         "title": "Product",
 7         "type": "object",
 8         "properties": {
 9             "name": {
10                 "type": "string"
11             },
12             "price": {
13                 "type": "number",
14                 "minimum": 0,
15                 "maximum":30,
16                 "exclusiveMinimum": true
17             },
18             "tags": {
19                 "type": "array",
20                 "items": {
21                     "type": "string",
22                     "minLength":10,
23                     "maxLength":1024,
24                     "pattern":"http://.*"
25                 },
26                 "minItems": 2,
27                 "uniqueItems": true
28             },
29             "city":{
30               "type":"string",
31               "enum" : ["bj", "sh", "hk"]
32             }
33         },
34         "required": ["name", "price"]
35     }
36 }

测试json

 1 [
 2   {
 3     "name":"san",
 4     "price":29,
 5     "tags":["http://sdtr/sdg", "http://qwewret/qsdf"],
 6     "city":"bj"
 7   },
 8   {
 9     "name":"dong",
10     "price":30,
11     "tags":["http://test", "http://sina"],
12     "city":"hk"
13   },
14 ]

参考:

http://blog.csdn.net/Miss_Ashelley/article/details/53285762

http://www.jsonschemavalidator.net/

http://json-schema.org/