SpringBoot 之 国际化

添加国际化i18n语言配置：

# src/main/resources/i18n/login.properties

login.btn=登录

# src/main/resources/i18n/login_zh_cn.properties

login.btn=登录

# src/main/resources/i18n/login_en_us.properties

login.btn=sign in

模板中使用国际化语言输出及增加切换语言链接：

# src/main/resources/templates/index.html

<h1 ... th:text="#{login.tip}"></h1>
<input type="checkbox" value="remember-me"> [[#{login.remember}]]
<button type="submit"> [[#{login.btn}]] </button>

<a th:href="@{/index.html(l='zh_cn')}">中文</a>
<a th:href="@{/index.html(l='en_us')}">english</a>

# src/main/resources/application.properties

# 国际化文件的目录位置
spring.messages.basename=i18n

实现本地化解析器：

# src/main/java/com/wu/config/mylocaleresolver.java

import org.springframework.util.stringutils;
import org.springframework.web.servlet.localeresolver;

import javax.servlet.http.httpservletrequest;
import javax.servlet.http.httpservletresponse;
import java.util.locale;

public class mylocaleresolver implements localeresolver {
    private static final string path_parameter = "l";
    private static final string path_parameter_split = "_";

    @override
    public locale resolvelocale(httpservletrequest request) {
        string lang = request.getparameter(path_parameter);
        locale locale = request.getlocale();
        if (!stringutils.isempty(lang)) {
            string[] split = lang.split(path_parameter_split);
            locale = new locale(split[0], split[1]);
        }
        return locale;
    }

    @override
    public void setlocale(httpservletrequest request, httpservletresponse response, locale locale) {

    }
}

将语言解析器加入到 webmvcconfigurer 中：

# src/main/java/com/wu/config/mymvcconfig.java

@configuration // 标注这个类是一个配置类
public class mymvcconfig implements webmvcconfigurer {
    // 配置视图跳转
    @override
    public void addviewcontrollers(viewcontrollerregistry registry) {
        registry.addviewcontroller("/").setviewname("index");
        registry.addviewcontroller("/index.html").setviewname("index");
    }

    // 将本地化解析器配置到容器中
    @bean
    public localeresolver localeresolver() {
        return new mylocaleresolver();
    }

    // 将视图解析器配置到容器中
    @bean
    public viewresolver myviewresolver() {
        return new myviewresolver();
    }

    // 自定义一个视图解析器
    public static class myviewresolver implements viewresolver {
        @override
        public view resolveviewname(string viewname, locale locale) throws exception {
            return null;
        }
    }
}