Detailed explanation of examples of jQuery framework Ajax

json (JavaScript Object Notation): lightweight data exchange (the exchanged data is converted into a platform-independent) format

1. Convert java objects into json strings, using ObjectMapper Class writeValueAsString(java object);

2. Convert a json string or an array string composed of json objects into a javascript object using the parse function provided by the javascript built-in object JSON

$.ajax() method

$.ajax({
    url:请求地址(相对),
    type:请求类型,
    data:请求参数(可以字符串形式还可以是对象形式{"adminCode":"king","age":22}),
    dataType:服务器返回的数据类型 "json" javascript对象 
                    "text" 文本
                    "html" html文档
                    "xml" xml文档
                    "script" javascript脚本,
    success:绑定事件处理函数  function(任意参数表示服务器返回的数据){},
    error:绑定事件处理函数(服务器出错了) function(){}
});

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