语法
public abstract class JsonGenerator extends Object implements Closeable, Flushable, Versioned
import java.io.*; import com.fasterxml.jackson.core.*; public class JsonGeneratorTest { public static void main(String args[]) throws IOException { JsonFactory factory = new JsonFactory(); StringWriter jsonObjectWriter = new StringWriter(); JsonGenerator generator = factory.createGenerator(jsonObjectWriter); generator.useDefaultPrettyPrinter(); // pretty print JSON generator.writeStartObject(); generator.writeFieldName("empid"); generator.writeString("120"); generator.writeFieldName("firstName"); generator.writeString("Ravi"); generator.writeFieldName("lastName"); generator.writeString("Chandra"); generator.writeFieldName("technologies"); generator.writeStartArray(); generator.writeString("SAP"); generator.writeString("Java"); generator.writeString("Selenium"); generator.writeEndArray(); generator.writeEndObject(); generator.close(); // to close the generator System.out.println(jsonObjectWriter.toString()); } }
{ "empid" : "120", "firstName" : "Ravi", "lastName" : "Chandra", "technologies" : [ "SAP", "Java", "Selenium" ] }
以上就是我们如何使用Java中的JsonGenerator创建一个JSON呢?的详细内容,更多请关注php中文网其它相关文章!
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