JsonConfig 类是一个帮助配置序列化过程的实用类。我们可以使用JsonConfig 类的setExcludes()方法将一个bean转换为一个JSON对象，并排除其中的一些属性，并将这个JSON配置实例传递给JSONObject的静态方法fromObject()的参数。
public void setExcludes(String[] excludes)
In the below example, we can convert bean to a JSON object by excluding some of the properties.
import net.sf.json.JSONObject;
import net.sf.json.JsonConfig;
public class BeanToJsonExcludeTest {
public static void main(String[] args) {
Student student = new Student("Raja", "Ramesh", 35, "Madhapur");
JsonConfig jsonConfig = new JsonConfig();
jsonConfig.setExcludes(new String[]{"age", "address"});
JSONObject obj = JSONObject.fromObject(student, jsonConfig);
System.out.println(obj.toString(3)); //pretty print JSON
}
public static class Student {
private String firstName, lastName, address;
private int age;
public Student(String firstName, String lastName, int age, String address) {
super();
this.firstName = firstName;
this.lastName = lastName;
this.age = age;
this.address = address;
}
public String getFirstName() {
return firstName;
}
public String getLastName() {
return lastName;
}
public int getAge() {
return age;
}
public String getAddress() {
return address;
}
}
}在下面的输出中，age 和address 属性可以被排除。
{
"firstName": "Raja",
"lastName": "Ramesh"
}以上是如何在Java中使用JsonConfig将bean转换为JSON对象并排除某些属性？的详细内容。更多信息请关注PHP中文网其他相关文章！
