Java对象转json字符串,代码编译测试 - 在线编译器(yxjc123.com)

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                    import com.alibaba.fastjson2.JSON;

import java.util.ArrayList;
import java.util.List;

/**
 *Java对象转json字符串
 */
public class StringToJSON {
    public static void main(String[] args) {
        //定义JSON字符串
        Employee e = new Employee("易学教程","male", 22);
        System.out.println(JSON.toJSONString(e));
        Employee e2 = new Employee("易学教程2","male", 23);
        Employee e3 = new Employee("易学教程3","male", 25);
        List<Employee> list = new ArrayList<>();
        list.add(e);
        list.add(e2);
        list.add(e3);
        System.out.println(JSON.toJSONString(list));

    }
}

//JavaBean.java
class  Employee{

    private String name;
    private String sex;
    private Integer age;

    @Override
    public String toString() {
        return "Employee{" +
                "name='" + name + '\'' +
                ", sex='" + sex + '\'' +
                ", age=" + age +
                '}';
    }

    public Employee(String name, String sex, Integer age) {
        this.name = name;
        this.sex = sex;
        this.age = age;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getSex() {
        return sex;
    }

    public void setSex(String sex) {
        this.sex = sex;
    }

    public Integer getAge() {
        return age;
    }

    public void setAge(Integer age) {
        this.age = age;
    }
}
                

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