我如何根据它们的字段来比较POJO

Question

我基本上是在寻找一个单元测试框架，我可以用它来比较不重写equals和hascode方法的POJO。我看了一下JUnit、Test NG和Mockito，但它们似乎没有解决这个问题。

public class CarBean { 

    private String brand;
    private String color;

    public CarBean (){
    }

    public CarBean (String brand, String color){
        this.brand= brand;
        this.color= color;
    }

    /**
     * @return the brand
     */
    public String getBrand() {
        return brand;
    }

    /**
     * @param the brand to set
     */
    public void setBrand(String brand) {
        this.brand= brand;
    }

    /**
     * @return the color
     */
    public String getColor() {
        return color;
    }

    /**
     * @param the color to set
     */
    public void setColor(String color) {
        this.color= color;
    }
}

CarBean car1 = new CarBean("Ford","Black");
CarBean car2 = new CarBean("Ford","Black");

car1.equals(car2); // This returns false

Answer 1

重写pojo类中的toString（）方法，如下所示

@Override
public String toString() {
    return "brand: " + this.brand + ",color: " + this.color;
}


car1.toString().equals(car2.toString()); //It will return true if both objects has same values

如果你有很大的NO参数，我会建议你使用bellow代码

public static boolean comparePOJO(Object obj1, Object obj2) {
    return new Gson().toJson(obj1).equals(new Gson().toJson(obj2));
}
comparePOJO(car1,car2); //It will return true