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请求总是404

3

3

跨域 Ajax

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

function login() {
    console.log(n.value);
    console.log(p.value);
    var xmlhttp = new XMLHttpRequest();

    xmlhttp.open("Post","/carrots-admin-ajax/a/login",true);
    xmlhttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
    xmlhttp.send("name=" + n.value + "&pwd=" + p.value);

    xmlhttp.onreadystatechange = function()
    {
        if (xmlhttp.readyState === 4) {
            if (xmlhttp.status === 200) {
                var jsons = JSON.parse(xmlhttp.responseText);
                console.log(jsons);
                if (jsons.code === 0) {
                    window.location.href = "https://www.jnshu.com/"
                } else {
                    alert("账号或密码错误")
                }
            }
        }
    };
}

该问题已被官方收录

ajax请求的地址，为什么不能直接写在代码中？而要写在Nginx里？

1

3

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 图片

class="cursor-pointer"> 文本

var btn = document.getElementById('btn');
btn.onclick = function () {
    var user = document.getElementById('user').value; //用户名
    var pass = document.getElementById('pass').value; //密码
    var xmlhttp = new XMLHttpRequest; //XMLHttpRequest 对象
    xmlhttp.open('post', '/carrots-admin-ajax/a/login', true); //使用open方法（post类型，地址，异步请求）
    xmlhttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded"); //添加 HTTP 头
    xmlhttp.send("name=" + user + "&pwd=" + pass); //发送数据到服务器
    xmlhttp.onreadystatechange = function (data) { //监听事件
        if (xmlhttp.readyState == 4 //通信成功时，状态为4
            &&
            xmlhttp.status == 200) { //服务器已成mlhttp.readyState == 4 //通信成功时功处理了请求。通常，这表示服务器提供了请求的网页。
            var data = xmlhttp.responseText;
            console.log("data字符串:",data);
            data = JSON.parse(data);
            // if (data.message == "success"){
            if (data.code == 0) {
                location.assign("http://dev.admin.carrots.ptteng.com/#/login"); //跳转网页
                // console.log("data:",data);
            } else {
                document.getElementById("hide").innerHTML = data.message;
            }
        }
    }
}

该问题已被官方收录

输入正确的用户名和密码，点击登录，不能跳转页面。

3

2

Ajax 跨域

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

if (xhr.readyState === 4 && xhr.status === 200) {
            var json = JSON.parse(xhr.responseText);
            console.log(json);
            if (json.code === 0) {
                window.location.herf = 'https://www.baidu.com';
            }  else {
                error.innerHTML = json.message;
            }
        }

该问题已被官方收录

为什么任务五，在自己电脑可以请求到数据，而在GitHub上展示却不能请求到数据？

3

1

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 图片

class="cursor-pointer"> 文本

该问题已被官方收录

Ajax怎么运用，里面的

0

1

Ajax

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

function login() {
    console.log(username.value);
    console.log(pwd.value);
    var xhr = new XMLHttpRequest();
    xhr.open('post', '/carrots-admin-ajax/a/login', true);
    xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
    xhr.send('name=' + username.value + '&pwd=' + pwd.value);
    xhr.onreadystatechange = function () {

        if (xhr.readyState == 4) {
            if ((xhr.status >= 200 && xhr.status < 300) || xhr.status == 304) {
                if(JSON.parse(xhr.responseText).code==0){
                    window.location.href = 'task6.html';

该问题已被官方收录

在点击登陆的时候，遇到了好多不懂得东西，比如说接口的问题，还不是很能理解关于接口

1

1

Ajax

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

// 获取input的数值
var ID = document.getElementById('ID');
// 第二个input的数值
var password = document.getElementsByClassName('password')[0];
var show = document.getElementById('show');
// 声明一个请求
var xhr;
// 点击事件，点击的时候获取到输入框输入的数值
function NEWbutton() {
    console.log(ID.value);
    console.log(password.value);
    if (ID.value == '') {
        show.innerHTML = '请输入账号'
        return false;
    } else if (password.value == '') {
        show.innerHTML = '请输入密码'
        return false;
    } else {
        // 请求参数
        var data = 'name=' + ID.value + '&pwd=' + password.value;
        var lin = '/carrots-admin-ajax/a/login';
        xhr = new XMLHttpRequest();
        xhr.onreadystatechange = function () {
            // 通信成功时，状态值为4
            if (xhr.readyState === 4 && xhr.status === 200) {
                var xuan = JSON.parse(xhr.responseText);
                console.log(xuan)
                if (xuan.code == 0) {
                    location.href = 'http://dev.admin.carrots.ptteng.com/#/dashboard'
                } else {
                    show.innerHTML = xuan.message;
                }
            } 
        }
    };
    xhr.open('POST', lin, true);
    xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
    xhr.send(data);
    return false;
}

该问题已被官方收录

nginx代理接口有问题

1

1

Ajax 跨域

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

该问题已被官方收录

nginx如何配置

1

1

postman 跨域

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

#user  nobody;
worker_processes  1;

#error_log  logs/error.log;
#error_log  logs/error.log  notice;
#error_log  logs/error.log  info;

#pid        logs/nginx.pid;


events {
    worker_connections  1024;
}


http {
    include       mime.types;
    default_type  application/octet-stream;

    #log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
    #                  '$status $body_bytes_sent "$http_referer" '
    #                  '"$http_user_agent" "$http_x_forwarded_for"';

    #access_log  logs/access.log  main;

    sendfile        on;
    #tcp_nopush     on;

    #keepalive_timeout  0;
    keepalive_timeout  65;

    #gzip  on;

    server {
        listen       80;
        server_name  localhost;

        #charset koi8-r;

        #access_log  logs/host.access.log  main;

        location / {
            root   D:\home\www;
            index  index.html index.htm;
        }

        #error_page  404              /404.html;

        # redirect server error pages to the static page /50x.html
        #
        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }

        # proxy the PHP scripts to Apache listening on 127.0.0.1:80
        #
        #location ~ \.php$ {
        #    proxy_pass   http://127.0.0.1;
        #}

        # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
        #
        #location ~ \.php$ {
        #    root           /home/www;
        #    fastcgi_pass   127.0.0.1:9000;
        #    fastcgi_index  index.php;
        #    fastcgi_param  SCRIPT_FILENAME  $document_root$fastcgi_script_name;
        #    include        fastcgi_params;
        #}

        # deny access to .htaccess files, if Apache's document root
        # concurs with nginx's one
        #
        #location ~ /\.ht {
        #    deny  all;
        #}
    }
    server{
        listen      12;
        server_name localhost;
    
        location / {
            root  D:\\carrots\\angularjs\\;
            index index.html index.htm;
            try_files $uri $uri\ \index.html =404;
        }

        location /carrots-admin-ajax/{
            proxy_pass http://dev.admin.carrots.ptteng.com/;
        }
    }


    # another virtual host using mix of IP-, name-, and port-based configuration
    #
    #server {
    #    listen       8000;
    #    listen       somename:8080;
    #    server_name  somename  alias  another.alias;

    #    location / {
    #        root   html;
    #        index  index.html index.htm;
    #    }
    #}


    # HTTPS server
    #
    #server {
    #    listen       443 ssl;
    #    server_name  localhost;

    #    ssl_certificate      cert.pem;
    #    ssl_certificate_key  cert.key;

    #    ssl_session_cache    shared:SSL:1m;
    #    ssl_session_timeout  5m;

    #    ssl_ciphers  HIGH:!aNULL:!MD5;
    #    ssl_prefer_server_ciphers  on;

    #    location / {
    #        root   /home/www;
    #        index  index.php index.html index.htm;
    #    }
    #
    #}
}

该问题已被官方收录

ajax请求为什么会执行四次

1

1

Ajax

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

    request.responseType = 'json'
    request.onreadystatechange = function() {
        console.log(request)
    }
    request.open('POST', '/carrots-admin-ajax/a/login', true)
    request.setRequestHeader('Content-type', 'application/x-www-form-urlencoded');
    var data =
        'name=' +
        encodeURIComponent(data.name) +
        '&pwd=' +
        encodeURIComponent(data.pwd);
    request.send(data)

该问题已被官方收录

在ajax设置了type为post。为什么提交后显示405不支持get？

1

1

跨域

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

function login() {
    var name = $("input").eq(0).val();
    var pwd = $("input").eq(1).val();
    if (name == "") {
        $(".prompt").text("用户名不能为空");
        $(".prompt").css("color", "red");
        return false;
    }
    if (pwd == "") {
        $(".prompt").text("密码不能为空");
        $(".prompt").css("color", "red");
        return false;
    }
    $(".prompt").css("color", "black");
    var userTemp = "name=" + name + "&pwd=" + pwd;
    console.log(userTemp);
    $.ajax({
        type: "POST",
        url: "/carrots-admin-ajax/a/login",
        data: userTemp,
        dataType: "json",
        success: function (result, status, xhr) {
            if (result.message == "success") {
                $(".prompt").text("登陆成功");
                location.href = "http://dev.admin.carrots.ptteng.com/a/login"
            } else {
                $(".prompt").text(result.message);
            }
        },
        error: function (xhr) {
            alert(xhr.status);
        }
    })
}

$(function () {
    $(".login").on("click", login)
})

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