枚举的应用

public enum PayStatusEnum {

    PAY_INIT(0,"待支付"),
    PAY_SUCCESS(1,"已支付"),
    PAY_FILED(2,"支付失败");


    private Integer code;
    private String name;


    PayStatusEnum(Integer code, String name) {
        this.code = code;
        this.name = name;
    }

    public static PayStatusEnum getEnum(Integer code){
        for(PayStatusEnum type: PayStatusEnum.values()){
            if(code==type.getCode()){
                return type;
            }
        }
        return null;
    }

    public Integer getCode() {
        return code;
    }

    public void setCode(Integer code) {
        this.code = code;
    }

    public String getName() {
        return name;
    }

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