jsp ajax get request Chinese gibberish problem solution

The url code of Tocant is iso-8859-1(see Connector node of tocat/conf/ server.xml without URIEncoding="xxxxxx") as follows:

　　　　　　<Connector port="8080" protocol="HTTP/1.1"
　　　　　　　　　　　　　　connectionTimeout="20000"
　　　　　　　　　　　　　　redirectPort="8443" />

If we write the following code in servlet

　　　
　　　　String username = request.getParameter("name");//name  is get  The requested parameter , Here we have put get The requested bytecode is converted to iso-8859-1 The code of, decoding error 
　　　　byte[] b = username.getBytes("iso-8859-1");// So you have to convert it back into bytecode, and decode it in the right way, and the right way is  jsp The way that page is encoded, 
　　　　username =new String(b,"GBK");
　　　　System.out.print(username );