JS Submission Form 2-query Ajax post (JSON array, form form via serialize () serialization, HTML stitching)

$.post, $.get is a simple method, if you want to deal with complex logic, still need to use the Jquery.ajax ()

I. General format of $.ajax

$.ajax ({

Type: ' POST ',

URL: URL ,

Data: data ,

Success: Success ,

DataType: dataType

});

Second, the parameter description of $.ajax

Parameter description

Url	Necessary. Specifies which URL to send the request to.
Data	Optional. The map or string value. Specifies the data that is sent to the server along with the request.
Success (data, Textstatus, JQXHR)	Optional. The callback function to execute when the request succeeds.
DataType	Optional. Specifies the data type of the expected server response. The default is to perform smart judgments (XML, JSON, script, or HTML).

Three, $.ajax need to pay attention to some places:

There are three main ways of 1.data, HTML splicing, JSON array, form form is serialized by Serialize (), and no intelligent judgment is specified by datatype.

2.$.ajax only submits form in text mode, if the asynchronous commit contains <file> uploads are not passed over, you need to use Jquery.form.js $.ajaxsubmit

//1.$.ajax asynchronous requests with JSON datavarAJ =$.ajax ({URL:' Productmanager_reverseupdate ',//Jump to Actiondata:{Selrollback:selrollback, Seloperatorscode:seloperatorscode, P Rovincecode:provincecode, Pass2:pass2}, type:' Post ', Cache:false, DataType:' JSON ', Success:function(data) {if(Data.msg = = "true" ){              //View ("Modified successfully!  "); Alert ("Modified successfully! ");          Window.location.reload (); }Else{view (data.msg); }}, Error:function() {            //view ("Exception!  "); Alert ("Exception! "); }  });//2.$.ajax asynchronous requests that serialize the contents of a table to a stringfunctionnotips () {varFormparam = $ ("#form1"). Serialize ();//Serialize table contents as strings$.ajax ({type:' Post ', URL:' Notice_notipsnotice ', Data:formparam, cache:false, DataType:' JSON ', Success:function(data) {}}); }  //3.$.ajax asynchronous requests for stitching URLsvaryz=$.ajax ({type:' Post ', URL:' validatepwd2_checkpwd2?password2= ' +Password2, data:{}, cache:false, DataType:' JSON ', Success:function(data) {if(Data.msg = = "false")//The server returns false, changing the value of ValidatePassword2 to Pwd2error, which is asynchronous and needs to consider the return time{textpassword2.html ("<font color= ' red ' > Business password is incorrect! </font> "); $("#validatePassword2"). Val ("Pwd2error").); CheckPassword2=false; return; }}, Error:function(){}  }); //4.$.ajax asynchronous request to splice data$.ajax ({URL:' <%=request.getcontextpath ()%>/kc/kc_checkmernameunique.action ', type:' Post ', Data:' Mername= ' +values, Async:false,//default is True asyncErrorfunction() {alert (' Error '); }, Success:function(data) {$ ("#"+divs). HTML (data); }});

JS Submission Form 2-query Ajax post (JSON array, form form via serialize () serialization, HTML stitching)