一、定义枚举类，并随机取值

第一种方法：

一、定义枚举类

　　首选编写枚举类型值

　　定义变量

　　构造方法

　　编写枚举类的内部静态方法

public enum TestEstateTypeEnum {


    PAYMENT_BUSSINESS("PAYMENT_BUSSINESS","商业按揭购房"),
    PAYMENT_FUND("PAYMENT_FUND","公积金按揭购房"),
    PAYMENT_BUS_FUND("PAYMENT_BUS_FUND","商业&公积金组合按揭购房"),
    PAYMENT_NONE("PAYMENT_NONE","无按揭购房"),
    MORTGAGE_OWN("MORTGAGE_OWN","持证抵押房"),
    SELF_HELPING("SELF_HELPING","自建房"),
    ;

    public String text;
    public String testStr;

    TestEstateTypeEnum(String text, String testStr) {
        this.text = text;
        this.testStr = testStr;
    }

    public static TestEstateTypeEnum randomType(TestEstateTypeEnum[] values){
        return values[(int)(Math.random()*values.length)];
    }
}

二、编写测试类，随机取值

public class TestEnum {

    @Test
    public void test(){
        TestEstateTypeEnum randomType = TestEstateTypeEnum.randomType(TestEstateTypeEnum.values());
        System.out.println(randomType+" "+randomType.testStr);//PAYMENT_NONE 无按揭购房
    }
}

 第二种方法：

一、自定义方法

public class SalesParameters  {

    /**
     * 获取制定类型的随机枚举值
     * @return String
     */
    public static String SALES_ENUM_VALUE(String type) {
        String val = "";
        String[] origins = {"VISIT", "RECOMMEND", "LEAFLET", "ACTIVITY", "MEDIA", "MESSAGE", "NET", "PHONESALE", "FRIENDS", "OTHERS"};
        String[] selectAddresses = {"HOME_ADDRESS", "HOUSE_ADDRESS", "COMPANY_ADDRESS", "ESTATE_ADDRESS", "OTHER_ADDRESS"};
        if (type.equalsIgnoreCase("origin")) {
            val = origins[(int) (Math.random() * origins.length)];
        }else if (type.equalsIgnoreCase("selectAddress")) {
            val = selectAddresses[(int) (Math.random() * selectAddresses.length)];
        return val;
    }

二、测试类调用

SALES_ENUM_VALUE("origins")