$.ajax({

    url: 'http://www.baidu.com',

    type: 'get',

    data: JSON.stringify({"name":"love python!"}),

    // 方法一：设置headers请求头参数

    headers: {"Content-Type": "application/x-www-form-urlencoded", "Accept": "text/plain"},

    success: function (data) {

        console.log(data)

    },

    error: function (XMLHttpRequest, textStatus, errorThrown) {

        console.log(XMLHttpRequest.status);

        console.log(XMLHttpRequest.readyState);

    },

    complete: function(XMLHttpRequest, status) { } // 请求完成后最终执行参数

});

$.ajax({

    url: 'http://www.baidu.com',

    type: 'get',

    data: JSON.stringify({"name":"love python!"}),

    ContentType: "application/x-www-form-urlencoded"

    // 方法二：设置headers请求头参数

    beforeSend: function(request) {

        request.setRequestHeader("Accept", "text/plain");

        request.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");

    },

    success: function (data) {

        console.log(data)

    },

    error: function (XMLHttpRequest, textStatus, errorThrown) {

        console.log(XMLHttpRequest.status);

        console.log(XMLHttpRequest.readyState);

        console.log(textStatus);

    },

    complete: function(XMLHttpRequest, status) { } // 请求完成后最终执行参数

});