jquery的Ajax架構亂碼解決

最後更新：2018-12-07 來源：互聯網

上載者：User

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1.下面代碼為伺服器端擷取請求資訊Servlet,真正用的時候可能就是struts等

package com.adu;

import java.io.IOException;
import java.io.PrintWriter;
import java.net.URLDecoder;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class AjaxServer extends HttpServlet {

private static final long serialVersionUID = -1391282338046351379L;

    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {

        response.setContentType("text/html");
        response.setCharacterEncoding("UTF-8");

        PrintWriter out = response.getWriter();
        商賬追收
        //擷取頁面jquery的url提交的資料，進行處理
//        String userName = request.getParameter("name");
//        String passWord = request.getParameter("password");

        String name = request.getParameter("name");
         String password = request.getParameter("password");

        //轉換字元集編碼,避免中文亂碼問題
        String userName = URLDecoder.decode(name,"UTF-8");
        String passWord = URLDecoder.decode(password,"UTF-8");


        //進行邏輯判斷，看輸入是否合法
        if(userName.length() != 0 && userName != null && passWord.length() != 0 && passWord != null){

            if(userName.equals("mawanli") && passWord.equals("123")){

                //out.print("Welcome* "+userName+" *visit my web!");
                out.print("歡迎* "+userName+" *訪問！");
                out.flush();
                out.close();

            }else{

                out.print("sorry please login again!");
//                out.print("請輸入正確的使用者名稱和密碼！");
            }
        }
        else{

            out.print("please input right name and password!");
            //out.print("請重新登入！");
        }

    }

    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp)
            throws ServletException, IOException {
        resp.setContentType("text/html");
        this.doGet(req, resp);
    }

}

2.以下是頁面測試的代碼：

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
    <base href="<%=basePath%>">

    <title>測試ajax驗證登入</title>
    <meta http-equiv="pragma" content="no-cache">
    <meta http-equiv="cache-control" content="no-cache">
    <meta http-equiv="expires" content="0">
    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
    <meta http-equiv="description" content="This is my page">

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