国际化方案&枚举类中文国际化处理

国际化方案&枚举类中文国际化处理

枚举类中文国际化处理-改造步骤

spring 配置文件（例：applicationContext.xml）中定义 applicationContextHolder bean（务必确保优先扫描加载此bean）

1. 实现I18nEnumTools

@Component
@DependsOn("I18nApplicationContextHolder")
public class I18nEnumTools {

    public 18nEnumTools() {
        ApplicationContext applicationContext = ApplicationContextHolder.getApplicationContext();
        System.out.println("I18nApplicationContextHolder = " + applicationContext.toString());
    }

    public static String getMessage(String I18nKey, String defaultMessage){

        String message = ApplicationContextHolder.getApplicationContext()
                .getMessage(I18nKey, null,
                        defaultMessage, LocaleContextHolder.getLocale());

        return message;

    }
}

改造现有枚举类，针对中文字段xxx添加对应的xxxI18nKey字段
添加或修改中文字段xxx的getter方法

public enum DemoEnum {

    /* 1.现有枚举值添加对应中文字段的I18nKey */
    DEMO_1("姓名1", "测试1", "java.DemoEnum.DEMO_1.xing_ming_1", "java.DemoEnum.DEMO_1.ce_shi_1"),

    DEMO_2("姓名2", "测试2", "java.DemoEnum.DEMO_2.xing_ming_2", "java.DemoEnum.DEMO_2.ce_shi_2");

    private final String name;
    private final String desc;

    /* 2.定义字段 */
    private final String nameI18nKey;
    private final String descI18nKey;

    DemoEnum(String name, String desc, String nameI18nKey, String descI18nKey) {
        this.name = name;
        this.desc = desc;

        /* 3. 构造函数添加对应中文字段的I18nKey */
        this.nameBdpI18nKey = nameI18nKey;
        this.descBdpI18nKey = descI18nKey;
    }

    /* 4.使用I18nEnumTools静态方法实现动态获取i18n值 */
    public String getDesc() {
        return I18nEnumTools.getMessage(this.descI18nKey, this.desc);
    }

    public String getName() {
        return I18nEnumTools.getMessage(this.nameI18nKey, this.name);
    }
}

枚举引用处改为对应getter

@RequestMapping("/demo")
@ResponseBody
public Object i18nDemo(){
    HashMap<String, String> result = new HashMap<>();
    result.put("demo1.name", DemoEnum.DEMO_1.getName());
    result.put("demo1.desc", DemoEnum.DEMO_1.getDesc());
    result.put("demo2.name", DemoEnum.DEMO_2.getName());
    result.put("demo2.desc", DemoEnum.DEMO_2.getDesc());
    return result;
}