SpringMVC乱码或前台乱码解决办法

红太狼 2022-02-26 07:40 306阅读 0赞

JSP页面乱码

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>

以及 form表单提交方式为必须为post  
修改web.xml，增加编码过滤器，如下（注意，需要设置forceEncoding参数值为true）

<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>

如果用到了Tomcat的话

## 在 conf/server.xml 加上 URIEncoding="UTF-8" ##

返回json乱码

<mvc:annotation-driven>
            <mvc:message-converters register-defaults="true">
                <bean
                    class="com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter">
                    <property name="supportedMediaTypes">
                        <list>
                            <value>text/html;charset=UTF-8</value>
                            <value>application/json</value>
                        </list>
                    </property>
                    <property name="features">
                        <list>
                            <value>WriteMapNullValue</value>
                            <value>QuoteFieldNames</value>
                            <value>WriteDateUseDateFormat</value>
                        </list>
                    </property>
                </bean>
            </mvc:message-converters>
        </mvc:annotation-driven>

加上<value>text/html;charset=UTF-8</value>

够用了，一般很少出现乱码  
有问题直接留言