Springmvc back-end parameters, arrays, collections, complex objects, etc.

Springmvc back-end parameters, arrays, collections, complex objects, etc.

Reference Address: 54705933

Several common ways are as follows: (1) Arrays: Backstage

@ResponseBody @RequestMapping (value= "/ajaxsortpriority")     PublicResultdo ajaxsortpriority (@RequestParam ("ids[]") long[] (IDs) {Resultdo Resultdo=NewResultdo (); intSize=cmsbannerservice.sortpriority (IDS); if(size==ids.length) {resultdo.setsuccess (true); }Else{resultdo.setsuccess (false); }        returnResultdo; }

Front

varparam=[]; $("#tb_order"). Find ("Td[name= ' id ']"). each (function() {Param.push ($ ( This). text ()); })                    varids={Ids:param}; $.ajax ({cache:true, type:"GET", URL:"/cmsbanner/ajaxsortpriority", DataType:"JSON", Data:ids, async:false, Success:function(data) {

(2) Collection

Background

@RequestMapping (value = "/cfgrepayremind", method =requestmethod.post) @ResponseBody PublicResultdo<?>cfgrepayremind (@RequestBody List<SysDictPojo> Sysdictpojos//the data format requested by the @RequestBody foreground must be JSON) {Resultdo<?> Resultdo =Resultdo.build (); Try{icprojectrepayservice.cfgrepayremind (Sysdictpojos); } Catch(Exception e) {resultdo.setsuccess (false); }         returnResultdo; }

Pojo class
public classextends  abstractbasepojo {    private  Long          id;     Private String        key;     Private String        value;     Private String        description;   }

Front

function Cfgrepayremind (ele) {var URL= $ (ele). attr ("value"); var params= []; $("#repayRemindMobile"). Find ("UL")). each (function () {var id= $( This). Find ("Input[name= ' id ']"). EQ (0). Val (); var value= $( This). Find ("input[name= ' value ']"). EQ (0). Val (); Params.push ({id:id, value:value});//Id,value is the attribute in the Java bean, the name is identical}) $.ajax ({cache:true, type:"POST", Url:url, data:JSON.stringify (params),//specifies that the requested data format is JSON, which actually passes the JSON stringContentType: ' Application/json;charset=utf-8 ',//specifies that the requested data format is JSON so that the background can accept Java beans with @requestbodyDataType: "JSON", Async:false, Success:function (data) {if(data.success) {toastr.success ("Operation succeeded");                        SetTimeout (function () {location.reload (); }, 1000)                    }                }            }); }

(3) Single parameter

Front

$.ajax ({            type:"POST",        data:{total:' + '},            DataType:' json ',                    URL: "Http://127.0.0.1:8089/icProject/test",            success:function  () {             }        } )

Background

@RequestMapping (value = "/test", method = requestmethod.post)    @ResponseBody    public String Test (@RequestParam ("Total"), String total    )        {returnnull;    }

(3) Pass multiple parameters

Front

var tagids = []$.ajax ({                "POST",                "/auth/childcomment/createcomment",                Data: {                    ID: $("#sourceId"). Val (),                    CourseID: $ ("#courseId"). Val (),                    classId: $ ( "#commentClassId"). Val (),                    content: $ ("#updateContent"). Val (),                    childID: $ (" #childId "). Val (),                    Classcatalogid: $ (" #classCatalogId "). Val (),                    tagid:tagids                }, 

Background

@PostMapping ("Createcomment")   @PreAuthorize ("hasanyauthority (' Merchant:childComment:index ')")    @ResponseBody     Public resultdo createcomment (            = "childID") long childid,            = "CourseID") long CourseID,            /c10>= "ClassId") long classId,            = "Classscheduleid") long Classscheduleid,            = "Content ") String content,            false) list<long> tagids    ) {

(4) Form data serialization parameter, Ajax commit

Front

var params = $ ("#sysUserFrm"). Serialize ();             var url = "/sysuser/settingsave"            $.ajax ({                true,                "POST",                Url:url,                data:params,                "JSON",                false,                  function  (data) {}            })

Background

@RequestMapping (value = "/settingsave", method = requestmethod.post)    @ResponseBody    public Resultdo<?> Settingsave (Sysuserpojo sysuserpojo) {}

This sysuserpojo can also receive the bean, in fact, the $ ("#sysUserFrm"). Serialize () is equivalent to assembling the JSON object {}

You must first assemble the JSON object {username: "Carter"}

My habit is to use the @RequestBody to accept the object with the List object or List object, because JS has a push method to combine to get the list is relatively simple

Do not use contenttype: "Application/json" then data can be an object, using contenttype: "Application/json" then data can only be a JSON string

Use @requestbody (actually accept a JSON string)

function logined () {                $.ajax ({                    "POST",                    "/backend/logined",                    data:JSON.stringify ({ UserName:"Cater", Password: "123456"}),// turn to String                    contentType: "Application/json;charset =utf-8 ",// do not use contenttype:" Application/json "then data can be an object, using contenttype:" Application/json " Then data can only be JSON string                    function  (data) {}                })            }

Springmvc back-end parameters, arrays, collections, complex objects, etc.