关于Ajax传输字符串到后台呈中文乱码的解决方法
框架:springboot+maven+Mybatis
使用软件:Intellij IDEA 2018.2.6
前端:jquery-1.11.3.min.js
问题:在使用Ajax传输一个字符串的时候,前台显示出中文字样,后台却是乱码+“=”,尝试了“produces = "text/html;charset=utf-8"”,无果:
<input type="text" id="uid"/> <div id="message"></div> </body> <script src="//code.jquery.com/jquery-1.11.3.min.js"></script> <script type="text/javascript"> $("#uid").blur(function () { var uid = $(this).val(); // var uid = encodeURI($('#uid').val(),"utf-8"); // data = {"goods_name":uid}; $.ajax({ url:"/async", data:uid, type:"POST", ContentType:"application/x-www-form-urlencoded;charset=UTF-8", success:function (data) { alert("返回结果集="+data) } }) }) </script>
解决方法:
在controller层,使用URLDecoder.decode()对乱码进行解码,用substring除去最后的“=”:
import java.io.IOException; import java.net.URLDecoder; public List<Map<String,Object>> async(@RequestBody String word) throws ExecutionException, InterruptedException, IOException {
MultiValueMap<String, String> paramMap = new LinkedMultiValueMap<>(); String goods_name = URLDecoder.decode(word, "UTF-8"); paramMap.add("goods_name", goods_name.substring(0,goods_name.length()-1));
这里转发两个网址,分别详细讲解了“使用 URLDecoder 和 URLEncoder 对中文字符进行编码和解码” 和 “substring常用的两种方法”:
https://blog.csdn.net/justloveyou_/article/details/57156039
https://blog.csdn.net/hehuihh/article/details/79033047