SprinMVC接收参数乱码解决篇

1.Spring 默认的字符编码格式为iso-8859-1，为此Spring专门提供了字符过滤器org.springframework.web.filter.CharacterEncodingFilter,且只对post请求生效

　　a.在项目的web.xml中配置Spring提供的过滤器

 <filter>  
        <filter-name>characterEncodingFilter</filter-name>  
        <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>  
        <init-param>  
            <param-name>encoding</param-name>  
            <param-value>UTF-8</param-value>  
        </init-param>  
        <init-param>  
            <param-name>forceEncoding</param-name>  
            <param-value>true</param-value>  
        </init-param>  
    </filter>  
    <filter-mapping>  
        <filter-name>characterEncodingFilter</filter-name>  
        <url-pattern>/*<url-pattern>
       </filter-mapping>

2.检查自己tomcat中的conf/server.xml

tomcat :

把
<Connector port="8080" protocol="HTTP/1.1"
               connectionTimeout="20000"
               redirectPort="8443" />
改成
<Connector port="8080" protocol="HTTP/1.1"
               connectionTimeout="20000"
               redirectPort="8443" URIEncoding="UTF-8"/>

 如果是在maven中用tomcat，在pom.xml配置的插件如下

1   　　　　　 <plugin>
                <groupId>org.apache.tomcat.maven</groupId>
                 <artifactId>tomcat7-maven-plugin</artifactId>
              <version>2.2</version>
              <configuration>    
                    <uriEncoding>UTF-8</uriEncoding>
                </configuration>
 　　　　　  </plugin>

3.如果还发发生乱码，我们就要回到1中好好理解Spring专门提供的字符过滤器有什么限制，使得该过滤器不生效

Spring专门提供的字符过滤器只对post请求生效