json schema是一种基于json格式的规范，用于定义json数据的结构。jsonschema类可以为给定应用程序所需的json数据提供合同，并指导如何与其进行交互。jsonschema可以定义json数据的验证、文档、超链接导航和交互控制。我们可以使用jsonschemagenerator的generateschema()方法生成json模式，该类封装了json模式生成功能。
语法public jsonschema generateschema(class<t> type) throws com.fasterxml.jackson.databind.jsonmappingexception
exampleimport com.fasterxml.jackson.core.jsonprocessingexception;import com.fasterxml.jackson.databind.objectmapper;import com.fasterxml.jackson.module.jsonschema.jsonschema;import com.fasterxml.jackson.module.jsonschema.jsonschemagenerator;import java.util.list;public class jsonschematest { public static void main(string[] args) throws jsonprocessingexception { objectmapper jacksonobjectmapper = new objectmapper(); jsonschemagenerator schemagen = new jsonschemagenerator(jacksonobjectmapper); jsonschema schema = schemagen.generateschema(person.class); string schemastring = jacksonobjectmapper.writerwithdefaultprettyprinter().writevalueasstring(schema); system.out.println(schemastring); }}// person classclass person { private string name; private int age; private list<string> courses; private address address; public string getname() { return name; } public int getage(){ return age; } public list<string> getcourse() { return courses; } public address getaddress() { return address; }}// address classclass address { private string firstline; private string secondline; private string thirdline; public string getfirstline() { return firstline; } public string getsecondline() { return secondline; } public string getthirdline() { return thirdline; }}
输出{ "type" : "object", "id" : "urn:jsonschema:person", "properties" : { "name" : { "type" : "string" }, "age" : { "type" : "integer" }, "address" : { "type" : "object", "id" : "urn:jsonschema:address", "properties" : { "firstline" : { "type" : "string" }, "secondline" : { "type" : "string" }, "thirdline" : { "type" : "string" } } }, "course" : { "type" : "array", "items" : { "type" : "string" } } }}
以上就是在java中使用jackson支持json schema吗？的详细内容。