Preface
There are many constants in the project, we all use enumerations (enum) to deal with them. Now I will share with you a more common code
Enumeration
/** * 描述: 常量类型 * / public enum ClientType { SYSTEM(0, "后台管理"), EDUCATION(1, "教育系统"), GOVERNMENT(2, "政府系统"); private Integer value; private String text; ClientType(Integer value, String text) { this.value = value; this.text = text; } public Integer getValue() { return this.value; } public String getText() { return this.text; } /** *根据值找相对应的中文 */ public static String getTextByValue(Integer value) { return Arrays.stream(values()) // java8新特性 -- stream流 .filter(x -> x.getValue().equals(value)) .map(ClientType::getText) .findFirst().orElse(""); } }
Enumeration is relatively simple to use in java code
In How to use the application layer
// 获取类型相对应的数值 Integer type = ClientType .SYSTEM.getValue(); // 获取中文 Intger code = 1; // 初始化 for (ClientType value : ClientType.values()) { if (type.value== code) { return type; // 不同的业务有不同的处理方式 } }
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