How to solve the problem of sending ajax garbled characters

Solution to sending ajax garbled characters: 1. Check whether the character interceptor is configured in web.xml; 2. Modify the jsp page to utf-8; 3. Change the ajax request to a post request.

The operating environment of this article: Windows 7 system, jquery version 3.2.1, Dell G3 computer.

How to solve the problem of sending ajax garbled characters?

Solution to the problem of Chinese garbled characters when JQuery sends an ajax request:

Troubleshoot the project first:

1. Whether it is configured in web.xml Character interceptor

  encodingFilter
  org.springframework.web.filter.CharacterEncodingFilter
  
    encoding
    utf-8
  
  
    forceEncoding
    true
  


  encodingFilter
  /*

2. Is the jsp page utf-8

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

By the way, I also add this tag and send utf-8 uniformly, but I heard it is a bit tasteless

3. After troubleshooting, change the ajax request to a post request

$.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){}

Recommended learning: "ajax video tutorial"

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