我们如何在Java中使用Streaming API来实现JSON数组？
JsonGenerator 接口可用于写入JSON数据到一个输出源以流方式。我们可以创建或实现使用JSON数组writeStartArray()的方法JsonGenerator，这种方法写入JSON名称/当前对象范围内启动数组字符对。writeStartObject()方法只在数组上下文写入JSON起始对象字符，并有效和writeEnd()方法写入当前上下文的末端。
语法
JsonGenerator writeStartArray(String name)
示例
import java.io.*;
import javax.json.*;
import javax.json.stream.*;
public class JsonGeneratorTest {
public static void main(String[] args) throws Exception {
StringWriter writer = new StringWriter();
JsonGenerator jsonGen = Json.createGenerator(writer);
jsonGen.writeStartObject() .write("name", "Adithya")
.write("designation", "Python Developer")
.write("company", "nhooo")
.writeStartArray("personal details")
.writeStartObject() .write("email", "adithya@gmail.com")
.writeEnd() .writeStartObject() .write("contact", "9959927000")
.writeEnd() // end of object .writeEnd() // end of an array .writeEnd(); // end of main object jsonGen.close();
System.out.println(writer.toString());
}
}输出结果
{"name":"Adithya","designation":"Python Developer","company":"nhooo","personal details":[{"email":"adithya@gmail.com"},{"contact":"9959927000"}]}