Json Schema 校验json，java代码示例

1、json schema 入门请参考下面两篇博客

1.1Json Schema 快速入门

1.2Json Schema 简介

2、java代码实现步骤

2.1引入依赖

com.github.fge

json-schema-validator

2.2.6

2.2创建工具类JsonSchemaUtil

import com.fasterxml.jackson.databind.JsonNode;

import com.github.fge.jackson.JsonLoader;

import com.github.fge.jackson.JsonNodeReader;

import com.github.fge.jsonschema.core.report.LogLevel;

import com.github.fge.jsonschema.core.report.ProcessingMessage;

import com.github.fge.jsonschema.core.report.ProcessingReport;

import com.github.fge.jsonschema.main.JsonSchemaFactory;

import org.springframework.util.ResourceUtils;

import java.io.FileReader;

import java.io.IOException;

import java.util.Iterator;

public class JsonSchemaUtil {

/**

* @param jsonStr 验证json字符串

*/

public static JsonNode strToJsonNode(String jsonStr) {

JsonNode jsonNode = null;

try {

jsonNode = JsonLoader.fromString(jsonStr);

} catch (IOException e) {

e.printStackTrace();

}

return jsonNode;

}

/**

* @param jsonFilePath jsonSchema文件路径

*/

public static JsonNode schemaToJsonNode(String jsonFilePath) {

JsonNode jsonSchemaNode = null;

try {

jsonSchemaNode = new JsonNodeReader().fromReader(new FileReader(ResourceUtils.getFile(jsonFilePath)));

} catch (IOException e) {

e.printStackTrace();

}

return jsonSchemaNode;

}

/**

* @param jsonNode json数据node

* @param schemaNode jsonSchema约束node

*/

private static boolean getProcessingReport(JsonNode jsonNode, JsonNode schemaNode) {

//fge验证json数据是否符合json schema约束规则

ProcessingReport report = JsonSchemaFactory.byDefault().getValidator().validateUnchecked(schemaNode, jsonNode);

if (report.isSuccess()) {

// 校验成功

return true;

} else {

Iterator it = report.iterator();

StringBuilder ms = new StringBuilder();

ms.append("json格式错误: ");

while (it.hasNext()) {

ProcessingMessage pm = it.next();

if (!LogLevel.WARNING.equals(pm.getLogLevel())) {

ms.append(pm);

}

}

System.err.println(ms);

return false;

}

}

}

2.3测试数据

schema：

{

"$schema":"http://json-schema.org/draft-04/schema#",

"title":"cat",

"properties":{

"name":{

"type":"string"

},

"age":{

"type":"number",

"description":"Your cat's age in years"

},

"declawed":{

"type":"boolean"

},

"description":{

"type":"string"

}

},

"required":[

"name",

"age",

"declawed"

]

}

json：

{

"name":"TOM",

"age":23,

"declawed":false,

"description":"TOM loves to sleep all day."

}

参考：

JSON解析器之json schema校验及代码实现

json schema 在线测试

https://www.bbsmax.com/A/D854nv0VzE/

https://blog.csdn.net/weixin_42534940/article/details/86594376

https://www.jianshu.com/p/d94d1c87b2eb

https://blog.csdn.net/ExcellentYuXiao/article/details/52345550