How to solve the problem of garbled parameters received in java

You can try the following five methods to solve the problem:

1. Submit in form instead of hyperlink

2. Through encodeURI (encodeURI(checkText)) method submits

Use URLDecoder.decode to decode in the java code:

<script>
function download(documentPath){
  var url = "<c:url value=&#39;/product/download.action?documentPath=&#39;/>"+documentPath;
  url = encodeURI(encodeURI(url));
  window.location.href=url;
}
</script>

Get Chinese in the java code:

String documentPath = (String) request.getParameter('documentPath');
documentPath = URLDecoder.decode(documentPath,"utf-8");

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3. Modify the connector in tomcat’s server.xml and add URLEncoding="UTF-8"

4. Chinese from java Transfer to jsp, and then transfer to java through url

Encoding in java:

URLEncoder.encode(URLEncoder.encode("传递的中文","utf-8"));

Decoding code in java:

URLDecoder.decode(request.getParameter('documentPath'),"utf-8");

5. Transcode the string in Java

String s = new String(filename.getBytes("ISO-8859-1"),"UTF-8");

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