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/
