解决spring请求中文乱码问题

1、web.xml添加编码拦截器

<filter>
    <filter-name>CharacterEncoding</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>CharacterEncoding</filter-name>
    <url-pattern>/*</url-pattern>
</filter-mapping>

2、jsp页面编码设置为UTF-8

<%@ page contentType="text/html;charset=UTF-8" language="java" pageEncoding="utf-8" %>

3、以上修改只能解决post请求，tomacat对GET和POST请求处理方式是不同的，处理GET请求的编码问题，要修改tomcat安装目录的server.xml配置文件,在Connector标签添加==URIEncoding="UTF-8"==

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

4、设置数据源

<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
    <property name="driverClassName" value="com.mysql.jdbc.Driver"/>
    <property name="url" value="jdbc:mysql://localhost:3306/test?useUnicode=true&amp;characterEncoding=UTF-8"/>
    <property name="username" value="root"/>
    <property name="password" value="root"/>
</bean>