jsp 解决ajax乱码的问题
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2022-04-17 14:04:54
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<%@page import="java.io.OutputStream"%>
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<%
request.setCharacterEncoding("utf-8");
response.setCharacterEncoding("utf-8");
%>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<button onclick="test()">测试</button>
</body>
<script src="js/jquery-1.4.2.min.js"></script>
<script>
function test(){
$.ajax({
type: "GET",
url: "testCookie",
data: {username:encodeURIComponent("燕子"), //编码content:encodeURIComponent("彩虹金刚")},
dataType: "json",
success: function(data){
console.log(data);
}
});
}
</script>
</html>服务器端
package my.jsp.test;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.PrintStream;
import java.io.PrintWriter;
import java.net.URLDecoder;
import java.text.MessageFormat;
import java.util.Enumeration;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class MyCookie extends HttpServlet {
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
request.setCharacterEncoding("utf-8");
response.setCharacterEncoding("utf-8");
response.setHeader("Content-Type", "text/html;charset=UTF-8");//响应头 这样就可以解决返回值乱码的问题
Enumeration<String> paramNames = request.getParameterNames();// 获取所有的参数名
while (paramNames.hasMoreElements()) {
String name1 = paramNames.nextElement();// 得到参数名
String value1 = request.getParameter(name1);// 通过参数名获取对应的值
System.out.println(MessageFormat.format("{0}={1}", URLDecoder.decode(name1,"utf-8"), URLDecoder.decode(value1,"utf-8")));//解码
}
PrintWriter out = response.getWriter();
out.print("蛤蛤蛤");
//释放资源
out.flush();
out.close();
}
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
}
}