JQuery发送ajax请求时中文乱码

先排除项目故障：

1.web.xml中是否配置了字符拦截器

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

2.jsp页面是不是utf-8

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

顺便也加上这个标签,统一发送utf-8，不过听说有些鸡肋

<meta http-equiv=”content-type” content=”text/html; charset=UTF-8″ />

3.在排除了故障后，将ajax请求改为post请求

 $.ajax({
        url:"list",
        type:'post',
        data:{
            param:recode,
            city:locationActive
        },
        dataType: 'json',//要求服务器返回的是json
        success:function(res){}             

JQuery发送ajax请求时中文乱码

原文：https://www.cnblogs.com/Lyn4ever/p/11378748.html