开发喵星球

后台国际化流程

在SysLoginController.java新增修改语言方法

@GetMapping("/changeLanguage")
public AjaxResult changeLanguage(String lang)
{
    return AjaxResult.success();
}

在SecurityConfig.java允许匿名访问此方法

.antMatchers("/changeLanguage").permitAll()

前端国际化流程

1、package.json中dependencies节点添加vue-i18n

"vue-i18n": "7.3.2",

2、src目录下创建lang目录，存放国际化文件
此处包含三个文件，分别是 index.js zh.js en.js

// index.js
import Vue from 'vue'
import VueI18n from 'vue-i18n'
import Cookies from 'js-cookie'
import elementEnLocale from 'element-ui/lib/locale/lang/en' // element-ui lang
import elementZhLocale from 'element-ui/lib/locale/lang/zh-CN'// element-ui lang
import enLocale from './en'
import zhLocale from './zh'

Vue.use(VueI18n)

const messages = {
  en_US: {
    ...enLocale,
    ...elementEnLocale
  },
  zh_CN: {
    ...zhLocale,
    ...elementZhLocale
  }
}

const i18n = new VueI18n({
  // 设置语言 选项 en | zh
  locale: Cookies.get('language') || 'zh_CN',
  // 设置文本内容
  messages
})

export default i18n

// zh.js
export default {
  login: {
    title: '若依后台管理系统',
    logIn: '登录',
    username: '账号',
    password: '密码',
    code: '验证码',
    rememberMe: '记住密码'
  },
  tagsView: {
    refresh: '刷新',
    close: '关闭',
    closeOthers: '关闭其它',
    closeAll: '关闭所有'
  },
  settings: {
    title: '系统布局配置',
    theme: '主题色',
    tagsView: '开启 Tags-View',
    fixedHeader: '固定 Header',
    sidebarLogo: '侧边栏 Logo'
  }
}

// en.js
export default {
  login: {
    title: 'RuoYi Login Form',
    logIn: 'Login in',
    username: 'Username',
    password: 'Password',
    code: 'Code',
    rememberMe: 'Remember Me'
  },
  tagsView: {
    refresh: 'Refresh',
    close: 'Close',
    closeOthers: 'Close Others',
    closeAll: 'Close All'
  },
  settings: {
    title: 'Page style setting',
    theme: 'Theme Color',
    tagsView: 'Open Tags-View',
    fixedHeader: 'Fixed Header',
    sidebarLogo: 'Sidebar Logo'
  }
}

3、在src/main.js中增量添加i18n

import i18n from './lang'

Vue.use(Element, {
  i18n: (key, value) => i18n.t(key, value),
  size: Cookies.get('size') || 'medium'
})


Vue.config.productionTip = false

new Vue({
  el: '#app',
  router,
  store,
  i18n,
  render: h => h(App)
})

4、在src/store/getters.js中添加language

language: state => state.app.language,

5、在src/store/modules/app.js中增量添加i18n

const state = {
  language: Cookies.get('language') || 'en'
}

const mutations = {
  SET_LANGUAGE: (state, language) => {
    state.language = language
    Cookies.set('language', language)
  }
}

const actions = {
  setLanguage({ commit }, language) {
    commit('SET_LANGUAGE', language)
  }
}

6、在src/components/LangSelect/index.vue中创建汉化组件

<template>
  <el-dropdown trigger="click" class="international" @command="handleSetLanguage">
    <div>
      <svg-icon class-name="international-icon" icon-class="language" />
    </div>
    <el-dropdown-menu slot="dropdown">
      <el-dropdown-item :disabled="language==='zh_CN'" command="zh_CN">
        中文
      </el-dropdown-item>
      <el-dropdown-item :disabled="language==='en_US'" command="en_US">
        English
      </el-dropdown-item>
    </el-dropdown-menu>
  </el-dropdown>
</template>

<script>
import { changeLanguage } from "@/api/login";


export default {
  computed: {
    language() {
      return this.store.getters.language
    }
  },
  methods: {
    handleSetLanguage(value) {
      this.i18n.locale = value
      this.store.dispatch('app/setLanguage', value)
      this.message({ message: '设置语言成功', type: 'success' })
      changeLanguage(value).then(response => {
        window.location.reload();
      });
    }
  }
}
</script>

7、在login.js新增修改语言方法

// 修改语言
export function changeLanguage(lang){
  return request({
    url: '/changeLanguage',
    method: 'get',
    headers: {
      isToken: false,
    },
    params: {
      lang: lang
    }
  })
}

8、登录页面汉化

<template>
  <div class="login">
    <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form">
      <h3 class="title">{{ t('login.title') }}</h3>
      <lang-select class="set-language" />
      <el-form-item prop="username">
        <el-input
          v-model="loginForm.username"
          type="text"
          auto-complete="off"
          :placeholder="t('login.username')"
        >
          <svg-icon slot="prefix" icon-class="user" class="el-input__icon input-icon" />
        </el-input>
      </el-form-item>
      <el-form-item prop="password">
        <el-input
          v-model="loginForm.password"
          type="password"
          auto-complete="off"
          :placeholder="t('login.password')"
          @keyup.enter.native="handleLogin"
        >
          <svg-icon slot="prefix" icon-class="password" class="el-input__icon input-icon" />
        </el-input>
      </el-form-item>
      <el-form-item prop="code" v-if="captchaEnabled">
        <el-input
          v-model="loginForm.code"
          auto-complete="off"
          :placeholder="t('login.code')"
          style="width: 63%"
          @keyup.enter.native="handleLogin"
        >
          <svg-icon slot="prefix" icon-class="validCode" class="el-input__icon input-icon" />
        </el-input>
        <div class="login-code">
          <img :src="codeUrl" @click="getCode" class="login-code-img"/>
        </div>
      </el-form-item>
      <el-checkbox v-model="loginForm.rememberMe" style="margin:0px 0px 25px 0px;">{{ t('login.rememberMe') }}</el-checkbox>
      <el-form-item style="width:100%;">
        <el-button
          :loading="loading"
          size="medium"
          type="primary"
          style="width:100%;"
          @click.native.prevent="handleLogin"
        >
          <span v-if="!loading">{{t('login.logIn') }}</span>
          <span v-else>登 录 中...</span>
        </el-button>
        <div style="float: right;" v-if="register">
          <router-link class="link-type" :to="'/register'">立即注册</router-link>
        </div>
      </el-form-item>
    </el-form>
    <!--  底部  -->
    <div class="el-login-footer">
      <span>Copyright © 2018-2024 ruoyi.vip All Rights Reserved.</span>
    </div>
  </div>
</template>

<script>
import LangSelect from '@/components/LangSelect'
import { getCodeImg } from "@/api/login";
import Cookies from "js-cookie";
import { encrypt, decrypt } from '@/utils/jsencrypt'

export default {
  name: "Login",
  components: { LangSelect },
  data() {
    return {
      codeUrl: "",
      loginForm: {
        username: "admin",
        password: "admin123",
        rememberMe: false,
        code: "",
        uuid: ""
      },
      loginRules: {
        username: [
          { required: true, trigger: "blur", message: "请输入您的账号" }
        ],
        password: [
          { required: true, trigger: "blur", message: "请输入您的密码" }
        ],
        code: [{ required: true, trigger: "change", message: "请输入验证码" }]
      },
      loading: false,
      // 验证码开关
      captchaEnabled: true,
      // 注册开关
      register: false,
      redirect: undefined
    };
  },
  watch: {
    route: {
      handler: function(route) {
        this.redirect = route.query && route.query.redirect;
      },
      immediate: true
    }
  },
  created() {
    this.getCode();
    this.getCookie();
  },
  methods: {
    getCode() {
      getCodeImg().then(res => {
        this.captchaEnabled = res.captchaEnabled === undefined ? true : res.captchaEnabled;
        if (this.captchaEnabled) {
          this.codeUrl = "data:image/gif;base64," + res.img;
          this.loginForm.uuid = res.uuid;
        }
      });
    },
    getCookie() {
      const username = Cookies.get("username");
      const password = Cookies.get("password");
      const rememberMe = Cookies.get('rememberMe')
      this.loginForm = {
        username: username === undefined ? this.loginForm.username : username,
        password: password === undefined ? this.loginForm.password : decrypt(password),
        rememberMe: rememberMe === undefined ? false : Boolean(rememberMe)
      };
    },
    handleLogin() {
      this.refs.loginForm.validate(valid => {
        if (valid) {
          this.loading = true;
          if (this.loginForm.rememberMe) {
            Cookies.set("username", this.loginForm.username, { expires: 30 });
            Cookies.set("password", encrypt(this.loginForm.password), { expires: 30 });
            Cookies.set('rememberMe', this.loginForm.rememberMe, { expires: 30 });
          } else {
            Cookies.remove("username");
            Cookies.remove("password");
            Cookies.remove('rememberMe');
          }
          this.store.dispatch("Login", this.loginForm).then(() => {
            this.router.push({ path: this.redirect || "/" }).catch(()=>{});
          }).catch(() => {
            this.loading = false;
            if (this.captchaEnabled) {
              this.getCode();
            }
          });
        }
      });
    }
  }
};
</script>

<style rel="stylesheet/scss" lang="scss">
.login {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
  background-image: url("../assets/images/login-background.jpg");
  background-size: cover;
}
.title {
  margin: 0px auto 30px auto;
  text-align: center;
  color: #707070;
}

.login-form {
  border-radius: 6px;
  background: #ffffff;
  width: 400px;
  padding: 25px 25px 5px 25px;
  .el-input {
    height: 38px;
    input {
      height: 38px;
    }
  }
  .input-icon {
    height: 39px;
    width: 14px;
    margin-left: 2px;
  }
}
.login-tip {
  font-size: 13px;
  text-align: center;
  color: #bfbfbf;
}
.login-code {
  width: 33%;
  height: 38px;
  float: right;
  img {
    cursor: pointer;
    vertical-align: middle;
  }
}
.el-login-footer {
  height: 40px;
  line-height: 40px;
  position: fixed;
  bottom: 0;
  width: 100%;
  text-align: center;
  color: #fff;
  font-family: Arial;
  font-size: 12px;
  letter-spacing: 1px;
}
.login-code-img {
  height: 38px;
}
</style>

普通文本使用方式： {{ $t('login.title') }}
标签内使用方式： :placeholder="$t('login.password')"
js内使用方式 this.$t('login.user.password.not.match')