fastjson设置字段不序列化

冷不防 2021-12-14 14:41 877阅读 0赞

alibaba的fasetjson可以设置字段不序列化，使用@JSONField注解的serialize属性，该属性默认是可以序列化的，设置成false就表示不可序列化：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2Rvbmd5dXh1MzQyNzE5_size_16_color_FFFFFF_t_70][]

使用方式就是在定义字段前加上@JSONField(serialize = false)

比如下面的实体类：

import com.alibaba.fastjson.annotation.JSONField;
    
    import java.util.Objects;
    
    public class Employee {
    
    @JSONField(serialize=false)
    private String name;
    private int age;
    private double salary;
    
    public Employee(String name, int age, double salary) {
    this.name = name;
    this.age = age;
    this.salary = salary;
    }
    
    public String getName() {
    return name;
    }
    
    public void setName(String name) {
    this.name = name;
    }
    
    public int getAge() {
    return age;
    }
    
    public void setAge(int age) {
    this.age = age;
    }
    
    public double getSalary() {
    return salary;
    }
    
    public void setSalary(double salary) {
    this.salary = salary;
    }
    
    @Override
    public boolean equals(Object o) {
    if (this == o) return true;
    if (o == null || getClass() != o.getClass()) return false;
    Employee employee = (Employee) o;
    return age == employee.age &&
    Double.compare(employee.salary, salary) == 0 &&
    Objects.equals(name, employee.name);
    }
    
    @Override
    public int hashCode() {
    
    return Objects.hash(name, age, salary);
    }
    
    @Override
    public String toString() {
    return "Employee{" +
    "name='" + name + '\'' +
    ", age=" + age +
    ", salary=" + salary +
    '}';
    }
    }

使用Json进行序列化：

import com.alibaba.fastjson.JSON;
    import org.junit.Test;
    
    public class EmployeeTest {
    
    @Test
    public void serialTest(){
    Employee employee=new Employee("aa",11,2000d);
    System.out.println(JSON.toJSONString(employee));
    }
    }

![2019070316255318.png][]

可以看到序列化之后的字符串没有name字段。

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2Rvbmd5dXh1MzQyNzE5_size_16_color_FFFFFF_t_70]: /images/20211214/baeaa7632ad04aa5915bdab7a96b735f.png
[2019070316255318.png]: /images/20211214/a52244b3ffab4257a784863970b10d5d.png