Spring Boot 菜鸟教程 16 数据国际化

GitHub

internationalization(i18n)

数据国际化

中文语言数据页面：只有中文数据

英文语言数据页面：只有英文数据

浏览器切换中文，英文

模型对象User

@Entity
@Table(name = "t_user")
public class User {
@Id
@GeneratedValue
private Long id;
private String name;
private Integer age;
private String locale;//通过此字段查询对应的数据

初始化类InitApplicationListener

package com.jege.spring.boot.controller;

import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationListener;
import org.springframework.context.event.ContextRefreshedEvent;
import org.springframework.stereotype.Component;

import com.jege.spring.boot.data.jpa.entity.User;
import com.jege.spring.boot.data.jpa.repository.UserRepository;

/**
* @author JE哥
* @email 1272434821@qq.com
* @description:spring的事件监听器的处理机制：在启动服务器的时候，插入默认数据
*/
@Component
public class InitApplicationListener implements ApplicationListener<ContextRefreshedEvent> {

@Override
public void onApplicationEvent(ContextRefreshedEvent event) {
ApplicationContext context = event.getApplicationContext();
UserRepository userRepository = context.getBean("userRepository", UserRepository.class);
User user;
for (int i = 1; i < 21; i++) {
if (i % 2 == 0) {
user = new User("je哥" + i, 25 + i);
user.setLocale("zh");
} else {
user = new User("je-ge" + i, 25 + i);
user.setLocale("en");
}
userRepository.save(user);
}
}

}

控制器类UserController

// 从user.jsp列表页面由easyui-datagrid发出ajax请求获取json数据
@RequestMapping("/json")
@ResponseBody
public Map<String, Object> json(@RequestParam(name = "page", defaultValue = "1") int page,
@RequestParam(name = "rows", defaultValue = "10") int rows, final String q, HttpServletRequest request) {
// 按照id降序
Sort sort = new Sort(Sort.Direction.DESC, "id");
// 封装分页查询条件
Pageable pageable = new PageRequest(page - 1, rows, sort);
// 拼接查询条件
Specification<User> specification = new Specification<User>() {
@Override
public Predicate toPredicate(Root<User> root, CriteriaQuery<?> query, CriteriaBuilder cb) {
List<Predicate> list = new ArrayList<Predicate>();
if (!StringUtils.isEmpty(q)) {
list.add(cb.like(root.get("name").as(String.class), "%" + q + "%"));
}
if (request.getLocale().toString().contains("en")) {
list.add(cb.like(root.get("locale").as(String.class), "%en%"));
} else {
list.add(cb.like(root.get("locale").as(String.class), "%zh%"));
}
Predicate[] p = new Predicate[list.size()];
return cb.and(list.toArray(p));
}
};
return findEasyUIData(userRepository.findAll(specification, pageable));
}

其他关联项目

源码地址