springMVC国际化

1.pom.xml

<profiles>
        <!-- JDK：JRE转化版本 -->
        <profile>
            <id>development</id>
            <activation>
                <jdk>1.8</jdk>
                <activeByDefault>true</activeByDefault>
            </activation>
            <properties>
                <maven.compiler.source>1.8</maven.compiler.source>
                <maven.compiler.target>1.8</maven.compiler.target>
                <maven.compiler.compilerVersion>1.8</maven.compiler.compilerVersion>
            </properties>
        </profile>
    </profiles>
    <!-- 统一属性设置 -->
    <properties>
        <!-- 字符编码配置 -->
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <!-- springMVC相关依赖版本 -->
        <spring.version>5.0.7.RELEASE</spring.version>
    </properties>
    <dependencies>      
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
            <scope>test</scope>
        </dependency>

        <!--springMVC相关依赖-->
        <dependency>
            <groupId>commons-logging</groupId>
            <artifactId>commons-logging</artifactId>
            <version>1.2</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-beans</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aop</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-expression</artifactId>
            <version>${spring.version}</version>
        </dependency>
    </dependencies>

2.web.xml

<!-- POST防止中文乱码 -->
    <filter>      <!--注意这里是filter，不要配置成servlet -->
        <filter-name>CharactorFilter</filter-name>    <!--过滤器名称 -->
        <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>  <!--过滤器的完整类名 -->
        <init-param>   <!--初始化参数 -->
            <param-name>encoding</param-name>  <!--参数名称 -->
            <param-value>utf-8</param-value>   <!--参数值 -->
        </init-param>
        <init-param>
            <param-name>forceEncoding</param-name>
            <param-value>true</param-value>
        </init-param>
    </filter>
    <filter-mapping> <!--过滤器映射 -->
        <filter-name>CharactorFilter</filter-name><!--过滤器名称 -->
        <url-pattern>/*</url-pattern><!--URL映射，给所有页面处理乱码 -->
    </filter-mapping>

    <!-- struts2 是通过过滤器对请求进行处理 springMVC通过servlet对所有的请求进行处理 servlet也称为前端控制器、*控制器 
        1、servlet比过滤器效率高 2、好管理 -->
    <!-- Spring -->
    <servlet>
        <servlet-name>springDispatcherServlet</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <!-- 配置spring的bean配置文件 -->
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:springMVC_beans.xml</param-value>
        </init-param>
        <!-- 加载顺序 -->
        <load-on-startup>1</load-on-startup>
    </servlet>

    <!-- 前端控制器的映射路径配置，由于前端控制器是处理所有请求的，所以，此处路径配置为根目录 -->
    <!-- "/*":根目录底下所有的文件 "/":根目录下所有的资源都能处理,除了.jsp. .js .jpg.... .jsp管不到,不经过前端控制器 
        *.do: 只处理.do文件 -->
    <servlet-mapping>
        <servlet-name>springDispatcherServlet</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>

3.springMVC_beans.xml

<!-- 扫描注解包 -->
<context:component-scan base-package="com.xalo.controller"></context:component-scan>
 <!-- 注解驱动 -->
<mvc:annotation-driven></mvc:annotation-driven>
 <!-- 静态资源处理 -->
<mvc:default-servlet-handler/>
<!-- 配置国际化的资源 -->
    <bean id="messageSource" class="org.springframework.context.support.ResourceBundleMessageSource"> 
       <!-- 表示多语言配置文件在根路径下,以language开头的文件 -->
        <property name="basename" value="language"/>
       <property name="useCodeAsDefaultMessage" value="true"/>
        <!-- 防中文乱码 -->
        <property name="cacheSeconds" value="0" />
        <property name="defaultEncoding" value="UTF-8"/>
   </bean> 
    <!-- 处理国际化的拦截器 --> 
    <bean id="localeResolver" class="org.springframework.web.servlet.i18n.SessionLocaleResolver">
        <property name="defaultLocale" value="en" />
    </bean> 
     <bean id="localeChangeInterceptor" class="org.springframework.web.servlet.i18n.LocaleChangeInterceptor">
        <property name="paramName" value="lang"></property>
     </bean>        
      <mvc:interceptors>       
           <ref bean="localeChangeInterceptor"/>        
      </mvc:interceptors>     
<!-- 界面解析器配置  根据逻辑视图名称匹配到物理视图. 例如:逻辑视图名称为 hello  逻辑视图拼接上前缀后缀 /hello.jsp -->
<bean id="viewParse" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
  <property name="prefix" value="/"></property>  <!-- 前缀 -->
  <property name="suffix" value=".jsp"></property> <!-- 后缀 -->
</bean> 

4.language_en_US.properties

title=login
name=name
password=password
user.age=must be greater than or equal to 4  //年龄必须大于4岁

5.language_zh_CN_properties

title=\u767B\u5F55
name=\u59D3\u540D
password=\u5BC6\u7801
user.age=\u5E74\u9F84\u5FC5\u987B\u5927\u4E8E4\u5C81

6.LoginController.java

@Controller
public class LoginController {
 //国际化界面
  @RequestMapping("/index")
 public String index(){
     return "index";
    }
 }

7.index.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
    <!-- spring提供的标签库 -->
 <%@taglib prefix="spring" uri="http://www.springframework.org/tags" %>
<html>
  <head>
     <title>国际化</title> 
     <meta charset=UTF-8/>
  </head> 
<body>
   <spring:message code="title"></spring:message><br>
   <spring:message code="name"></spring:message><br>
   <spring:message code="password"></spring:message><br>  
   <spring:message code="user.age"></spring:message><br>  
   <a href="index?lang=zh_CN">chinese</a>
   <a href="index?lang=en_US">english</a> 
</body>
</html>

8.http://localhost:8080/MavenSpringMVC/index?user.age=2

姓名
密码
年龄必须大于4岁
chinese english

login
name
password
must be greater than or equal to 4
chinese english