JSON-libAPI是一个 Java 库，用于以 JSON 格式序列化和反序列化 java bean、映射、数组和集合。我们需要将 JSON 字符串转换为 bean，方法是先将字符串转换为 JSON 对象，然后将其转换为 java bean。
语法
public static Object toBean(JSONObject jsonObject, Class beanClass)
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在下面的程序中，我们可以将 JSON 字符串转换为 bean。
示例
import net.sf.json.JSONObject;import net.sf.json.JSONSerializer;public class ConvertJSONStringToBeanTest { public static void main(String[] args) { String jsonStr = "{"firstName": "Adithya", "lastName": "Sai", "age": 30, "technology": "Java"}"; JSONObject jsonObj = (JSONObject)JSONSerializer.toJSON(jsonStr); // convert String to JSON System.out.println(jsonObj); Student student = (Student)JSONObject.toBean(jsonObj, Student.class); // convert JSON to Bean System.out.println(student.toString()); } public static class Student { private String firstName; private String lastName; private int age; private String technology; public Student() { } public String getFirstName() { return firstName; } public void setFirstName(String firstName) { this.firstName = firstName; } public String getLastName() { return lastName; } public void setLastName(String lastName) { this.lastName = lastName; } public int getAge() { return age; } public void setAge(int age) { this.age = age; } public String getTechnology () { return technology; } public void setTechnology(String technology) { this.technology = technology; } public String toString() { return "Student[ " + "firstName = " + firstName + ", lastName = " + lastName + ", age = " + age + ", technology = " + technology + " ]"; } }}
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输出
{"firstName":"Adithya","lastName":"Sai","age":30,"technology":"Java"}Student[ firstName = Adithya, lastName = Sai, age = 30, technology = Java ]
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