SpringBoot的Web开发入门案例2—国际化
改造logintest项目：SpringBoot的Web开发入门案例1
地址：https://blog.csdn.net/BLU_111/article/details/105461258
- resources目录下新建 i18n 文件夹
- 创建 login.properties 默认中文资源文件
login.title=\u7528\u6237\u767B\u5F55
login.uname=\u7528\u6237\u540D/\u90AE\u7BB1
login.pwd=\u5BC6\u7801
login.loginBtn=\u767B\u5F55
login.registBtn=\u6CE8\u518C
- 创建 login_zh_CN.properties 中文资源文件（和login.properties文件内容一致）
login.title=\u7528\u6237\u767B\u5F55
login.uname=\u7528\u6237\u540D/\u90AE\u7BB1
login.pwd=\u5BC6\u7801
login.loginBtn=\u767B\u5F55
login.registBtn=\u6CE8\u518C
- 创建 login_en_US.properties 英文资源文件
login.title=Login In
login.uname=uname/email
login.pwd=passwd
login.loginBtn=Login
login.registBtn=Register
- 修改 application.yml 配置文件，添加资源文件路径配置
server:
port: 8088
spring:
thymeleaf:
cache: false
messages:
basename: i18n/login
- 改造 login.html ，添加中英文切换超链接，以 “用户登录” 为例，通过 th:text="#{login.title} 替换成对资源文件值的引用。
<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
<head>
<meta charset="UTF-8"></meta>
<title>Spring Boot Web 开发测试</title>
<link rel="stylesheet"
th:href="@{webjars/bootstrap/3.3.7/css/bootstrap.min.css}" />
<link rel="stylesheet"
th:href="@{webjars/bootstrap/3.3.7/css/bootstrap-theme.min.css}" />
<script type="text/javascript"
th:src="@{webjars/jquery/1.11.1/jquery.min.js}"></script>
<script type="text/javascript"
th:src="@{webjars/bootstrap/3.3.7/js/bootstrap.min.js}"></script>
<script type="text/javascript">
$(function() {
$("#loginbtn").click(function() {
var loginName = $("#loginName");
var password = $("#password");
var msg = "";
if (loginName.val() == "") {
msg = "登录名不能为空!";
loginName.focus();
} else if (password.val() == "") {
msg = "密码不能为空!";
password.focus();
}
62
if (msg != "") {
alert(msg);
} else {
$("#loginform").submit();
}
})
})
</script>
</head>
<body>
<div class="container">
<div class="row">
<!-- 页面标题 -->
<div class="page-header">
<h2 th:text="#{login.title}">用户登录</h2>
<form class="form-horizontal" action="login" method="post"
id="loginform">
<div class="form-group">
<div class="input-group col-md-4">
<span class="input-group-addon"> <i
class="glyphicon glyphicon-user"></i>
</span> <input class="form-control" placeholder="用户名/邮箱" type="text"
name="loginName" id="loginName" th:placeholder="#{login.uname}" />
</div>
</div>
<div class="form-group">
<div class="input-group col-md-4">
<span class="input-group-addon"><i
class="glyphicon glyphicon-lock"></i></span> <input
class="form-control" placeholder="密码" type="password"
name="password" id="password" th:placeholder="#{login.pwd}" />
</div>
</div>
<p th:if="${not #strings.isEnpty(errorMsg)}" style="color: red">[[${errorMsg}]]</p>
<div class="form-group">
<div class="col-md-4">
<div class="btn-group btn-group-justified">
<div class="btn-group">
<button type="button" class="btn btn-success" id="loginbtn">
<span class="glyphicon glyphicon-log-in"
th:text="#{login.loginBtn}"></span>
</button>
</div>
<div class="btn-group">
<button type="button" class="btn btn-danger" id="registerbtn">
<span class="glyphicon glyphicon-edit"
th:text="#{login.registBtn}"></span>
</button>
</div>
</div>
</div>
</div>
</form>
<div>
<div>
<a href="/toLogin?lang=zh_CN">中文</a> <a href="/toLogin?lang=en_US">英文</a>
</div>
</div>
</div>
</div>
</div>
</body>
</html>
- 创建MyLocaleResolver类，该类继承自LocaleResolver，并 implement 两个方法，具体只需实现resolveLocale(HttpServletRequest request) 方法：
package com.blu.util;
import java.util.Locale;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.util.StringUtils;
import org.springframework.web.servlet.LocaleResolver;
public class MyLocaleResolver implements LocaleResolver {
@Override
public Locale resolveLocale(HttpServletRequest request) {
String lang = request.getParameter("lang");
Locale local = Locale.getDefault();
if (!StringUtils.isEmpty(lang)) {
String[] lan = lang.split("_");
local = new Locale(lan[0], lan[1]);
}
return local;
}
@Override
public void setLocale(HttpServletRequest request, HttpServletResponse response, Locale locale) {
}
}
- 为了使 MyLocaleResolver 类生效，需要创建一个配置类 MyConfig (注意这里的方法名只能叫 localeResolver() )
package com.blu.conf;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.LocaleResolver;
import com.blu.util.MyLocaleResolver;
@Configuration
public class MyConfig {
/*
* ! 注意这里的方法名只能叫localeResolver()
*/
@Bean
public LocaleResolver localeResolver() {
return new MyLocaleResolver();
}
}
- 改造完成，启动项目，访问：http://localhost:8088/toLogin
- 点击英文超链接可切换语言为英文
