springboot好用的国际化封闭方法
一、首先一定是国际化的properties，先来三个
文件等一下上properties代码，先上springboot的配置代码吧，需要把这个i18n的路径给告诉springboot。
spring:
messages:
basename: i18n/message #国际化配置文件地址
encoding: utf-8现在上properties代码，这里放中文，英文两种：
#
username.not_blank=用户名不能为空！
username.over_max_len=用户名长度不能超过16位！
password.not_blank=密码不能为空！
password.valid_fail=密码校验失败！
captcha.not_blank=验证码不能为空！
nickname.over_max_len=昵称长度不能超过16位！
phone.not_blank=手机号码不能为空！
phone.valid_fail=手机号格式不正确！
email.not_blank=电子邮箱不能为空！
email.valid_fail=电子邮箱格式不正确！
#
200=操作成功
400=参数校验失败
401=用户未登录
402=请求未授权
403=请求被拒绝
404=请求地址不正确或接口不存在
405=不支持当前请求方法
415=不支持当前媒体类型
500=服务器异常
1100=没有访问权限
2000=没有找到
2001=添加失败
2002=修改失败
2003=删除失败
#
username.not_blank=username is not blank!
username.over_max_len=The length of the username is less than 16 characters!
password.not_blank=password is not blank!
password.valid_fail=Password verification failed!
captcha.not_blank=captcha is not blank!
nickname.over_max_len=The lenggth of the nickname is less than 16 characters!
phone.not_blank=phone num is not blank!
phone.valid_fail=phone num is not formatted correctly!
email.not_blank=email is not blank!
email.valid_fail=email is not formatted correctly!
#
200=The operation succeeded
400=Parameter validation failed
401=The user is not logged in
402=The request is not authorized
403=The request was denied
404=The request address is incorrect or the interface does not exist
405=The current request method is not supported
415=The current media type is not supported
500=Server exception
1100=No access
2000=Not found
2001=Add failed
2002=Modification failed
2003=Delete failed二、springboot默认的区域信息解析是从请求头部信息中获取用哪种语言，这里我们改一下自定义区域信息解析器，要求首先地址栏如果有指定优先用地址栏指定的语言，如果没有就用请求头部信息中的内容，如果都没有，用服务器的语言。
package com.chhuang.component;
import cn.hutool.core.util.ArrayUtil;
import cn.hutool.core.util.StrUtil;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.LocaleResolver;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.Locale;
/**
* @ClassName UrlLocaleResolver
* @Description 自己定义区域信息解析器，如果地址栏带l信息，如?l=en_US，就以地址栏为准，
* 否则以头部信息中的accept-lang为准
* @Author Darren Huang
* @Date 2022/11/20 22:58
* @Version 1.0
*/
@Slf4j
@Component("localeResolver")
public class UrlLocaleResolver implements LocaleResolver {
private static final String[] ZH_CN = new String[]{"zh-cn","zh_cn","chinese","cn","zh","china"};
private static final String[] EN_US = new String[]{"en-us","en_us","english","us","en","shit"};
private static final Locale LOCALE_CN = new Locale("zh", "CN");
private static final Locale LOCALE_US = new Locale("en", "US");
@Override
public Locale resolveLocale(HttpServletRequest request) {
String lang = request.getParameter("l");
Locale locale = null;
if(StrUtil.isNotBlank(lang)){//地址栏存在语言信息
if (ArrayUtil.contains(ZH_CN, lang.toLowerCase())){
locale = LOCALE_CN;
}else {
locale = LOCALE_US;
}
}else {//从request获取语言信息
Locale requestLocale = request.getLocale();
if(requestLocale!=null) {
lang = requestLocale.toLanguageTag();
if (ArrayUtil.contains(ZH_CN, lang.toLowerCase())) {
locale = LOCALE_CN;
} else if(ArrayUtil.contains(EN_US, lang.toLowerCase())){
locale = LOCALE_US;
}
}
}
if(locale==null) locale = Locale.getDefault();
return locale;
}
@Override
public void setLocale(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Locale locale) {
}
}
三、为了使用方便，这里再封装一下MessageSource
package com.chhuang.component;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.MessageSource;
import org.springframework.context.i18n.LocaleContextHolder;
import org.springframework.stereotype.Component;
/**
* @ClassName I18nMessage
* @Description 国际化信息转化组件
* @Author Darren Huang
* @Date 2022/11/20 20:13
* @Version 1.0
*/
@Component
public class I18nMessage {
// INSTANCE;
@Autowired
private MessageSource messageSource;
public String get(Integer code){
return get(String.valueOf(code));
}
public String get(String key) {
try {
return messageSource.getMessage(key, null, LocaleContextHolder.getLocale());
} catch (Exception e) {
e.printStackTrace();
return key;
}
}
}
四、好了，这里我们看一下，怎么使用吧
/**
* 获取国际化资源组件
*/
@Autowired
private I18nMessage i18nMessage;
/**
* 通过主键查询单条数据
*
* @param id 主键
* @return 单条数据
*/
@GetMapping("/queryOne/{id}")
@ApiOperation(value = "ChUser查询一条数据", notes = "根据ID查询一条数据的接口")
@ApiResponses(value = {
@ApiResponse(code = 200, message = "返回一条ChUser信息")
})
public SaResult queryOne(@ApiParam(name = "id", value = "ChUserid编号", required = true) @PathVariable Serializable id) {
ChUser user= this.chUserService.getById(id);
if(ObjectUtil.isNotNull(user)) {
return SaResult.data(i18nMessage.get(SaCode.SUCCESS.getCode()), user);
}else {
return SaResult.get(SaCode.SEACH_FAIL.getCode(), i18nMessage.get(SaCode.SEACH_FAIL.getCode()));
}
} 五、这里对properties的key做了封装SaCode，为了有空做一下统一异常处理，统一异常处理后比如这里如果判断用户不存在直接抛个异常，不用单独写这个SaResult，后期更新给大家看，先看一下SaCode代码吧。
package com.chhuang.core.enums;
/**
* @ClassName SaCode
* @Description 请求返回代码
* @Author Darren Huang
* @Date 2022/11/19 0:07
* @Version 1.0
*/
public enum SaCode {
/**
* 请求成功
*/
SUCCESS(200, "操作成功"),
PARAMS_VALID_FAIL(400, "参数校验失败"),
NOT_LOGIN(401, "用户未登录"),
UN_AUTH(402, "请求未授权"),
REQ_REJECT(403, "请求被拒绝"),
NOT_FOUND(404, "请求地址不正确或接口不存在"),
METHOD_NOT_SUPPORTED(405, "不支持当前请求方法"),
MEDIA_TYPE_NOT_SUPPORTED(415, "不支持当前媒体类型"),
INTERNAL_SERVER_ERROR(500, "服务器异常"),
NOT_AUTH(1100, "没有访问权限"),
SEACH_FAIL(2000, "没有找到"),
SAVE_FAIL(2001, "添加失败"),
MODIFY_FAIL(2002, "修改失败"),
REMOVE_FAIL(2003, "删除失败");
/**
* code编码
*/
Integer code;
/**
* 中文信息描述
*/
String message;
SaCode(Integer code, String message){
this.code = code;
this.message = message;
}
public Integer getCode() {
return code;
}
public String getCodeStr(){return code.toString();}
public String getMessage() {
return message;
}
}