Question

我正在使用Jsonix，我使用下面提到的命令生成jsonix mapping和jsonix schema as，

java -jar jsonix-schema-compiler-full.jar -generateJsonSchema -d mappings books.xsd

它正在正确生成映射和架构，我想使用 AJV 和生成的JSON Schema验证JSON，所以我试过了，

var fs = require('fs');
var Ajv = require('ajv');

var XMLSchemaJsonSchema = JSON.parse(fs.readFileSync('../node_modules/jsonix/jsonschemas/w3c/2001/XMLSchema.jsonschema').toString());
var JsonixJsonSchema = JSON.parse(fs.readFileSync('../node_modules/jsonix/jsonschemas/jsonix/Jsonix.jsonschema').toString());
var booksJsonSchema = JSON.parse(fs.readFileSync('./books.jsonschema').toString());

var ajv = new Ajv();
ajv.addSchema(XMLSchemaJsonSchema, 'http://www.jsonix.org/jsonschemas/w3c/2001/XMLSchema.jsonschema');
ajv.addSchema(JsonixJsonSchema, 'http://www.jsonix.org/jsonschemas/jsonix/Jsonix.jsonschema');
var validate = ajv.compile(booksJsonSchema);

var data ={
   "book": [
      {
         "@id": "bk001",
         "author": "Writer",
         "title": "The First Book",
         "genre": "Fiction",
         "price": "44.95",
         "pub_date":2000-10-01,
         "review": "An amazing story of nothing."
      },
      {
         "@id": "bk002",
         "author": "Poet",
         "title": "The Poet's First Poem",
         "genre": "Poem",
         "price": "24.95",
         "pub_date":2000-10-02,
         "review": "Least poetic poems."
      }
   ]
};

var valid = validate(data);
if (!valid) {
    console.log('Validation failed errors:');
    console.log(validate.errors);
}else{
    console.log("successfully done validation");
}

但是它正在抛出错误

/Users/qliktag/Desktop/QAGG/qagUI2/Scripts/QLIKTAG-2602/node_modules/ajv/lib/ajv.js:183
    else throw new Error(message);
               ^
Error: schema is invalid: data.definitions['nonPositiveInteger'].anyOf[0].exclusiveMaximum should be number
    at Ajv.validateSchema (/Users/qliktag/Desktop/QAGG/qagUI2/testScripts/node_modules/ajv/lib/ajv.js:185:16)
    at Ajv._addSchema (/Users/qliktag/Desktop/QAGG/qagUI2/Scripts/QLIKTAG-2602/node_modules/ajv/lib/ajv.js:316:10)
    at Ajv.addSchema (/Users/qliktag/Desktop/QAGG/qagUI2/Scripts/QLIKTAG-2602/node_modules/ajv/lib/ajv.js:136:29)
    at Object.<anonymous> (/Users/qliktag/Desktop/QAGG/qagUI2/Scripts/QLIKTAG-2602/mappings/ajvSample.js:248:5)
    at Module._compile (module.js:456:26)
    at Object.Module._extensions..js (module.js:474:10)
    at Module.load (module.js:356:32)
    at Function.Module._load (module.js:312:12)
    at Function.Module.runMain (module.js:497:10)
    at startup (node.js:119:16)

实际上，当ajv addschema出现错误时，我做错了吗？

Answer 1

继续使用 draft-04架构添加meta: false 以阻止添加draft-06元架构 https://github.com/epoberezkin/ajv/releases/tag/5.0.0

var ajv = new Ajv({
    schemaId: 'id',
    meta: false, 
});

var metaSchema = require('../node_modules/ajv/lib/refs/json-schema-draft-04.json');
ajv.addMetaSchema(metaSchema);
ajv._opts.defaultMeta = metaSchema.id;
ajv._refs['http://json-schema.org/schema'] = 'http://json-schema.org/draft-04/schema';

添加此项后，使用 addSchema 以允许布尔值为exclusiveMaximum

ajv.addSchema(XMLSchemaJsonSchema, 'http://www.jsonix.org/jsonschemas/w3c/2001/XMLSchema.jsonschema');
ajv.addSchema(JsonixJsonSchema, 'http://www.jsonix.org/jsonschemas/jsonix/Jsonix.jsonschema');

Answer 2

JSON Schema的Draft-06/07中exclusiveMaximum从布尔值更改为数字。

// var ajv = new Ajv({schemaId: 'id'});
// If you want to use both draft-04 and draft-06/07 schemas:
var ajv = new Ajv({schemaId: 'auto'});
ajv.addMetaSchema(require('ajv/lib/refs/json-schema-draft-04.json'));

使用此选项，然后addSchema使用exclusiveMaximum

的布尔值

ajv.addSchema(XMLSchemaJsonSchema, 'http://www.jsonix.org/jsonschemas/w3c/2001/XMLSchema.jsonschema');
ajv.addSchema(JsonixJsonSchema, 'http://www.jsonix.org/jsonschemas/jsonix/Jsonix.jsonschema');

Answer 3

Jsonix的作者。

正如documentation中指出的那样，JSON Schema生成是一个实验性功能。因此失败并不令人惊讶。欢迎您file issues。

AJV模式验证失败

3 个答案: