Jquerystruts unique authentication (public method) _ jquery-js tutorial

This tutorial describes how to use a common method to verify the unique ID of jquerystruts. If you are interested, refer to the following link and hope to help you. Step 1 introduce the js File

The Code is as follows:

"> Script
"> Script

Step 2. Public the js file dictionary. js

The Code is as follows:

/**
* When there are too many threads, there are too many other threads.
* Author: ZhuangZi
* Class Name: public method Initialization
* Function: public method Initialization
* Details: public method Initialization
* Release: 1.0
* Date: 2013-03-22
* Note:
* When there are too many threads, there are too many other threads.
*/
$ (Function (){
/* 1. Missing focus verification */
$ ("# Code "). blur (callback); // 1. code is the ID of the control that you want to verify. your control must be followed by a control that receives error messages.
/* 2. Verify the token when submitting the ticket */
$ ("# Submit"). click (callback); // the ID of the submit button on your page
});
/**
* When there are too many threads, there are too many other threads.
* Author: ZhuangZi
* Class Name: The public method that verifies the unique identifier
* Function: unique verification
* Details: the unique ID and the submit button ID must be consistent with the following
* Release: 1.0
* Date: 2013-03-22
* Note:
* When there are too many threads, there are too many other threads.
*/
Function callback (){
Var slef = $ ("# code ");
Var code = slef. val ();
Var submit = $ ("# submit ");
Var flag = $ ("# flag"). val ();
If (null = code | "" = code ){
Slef.next().html ("The package ID cannot be blank! ");
Submit. attr ("disabled", true );
Return;
} Else {
If (! Code. match ("^ \ w + $ ")){
Slef.next().html ("the identifier consists of letters or underscores! ");
Return;
}
Slef.next().html ("*");
}
$. Ajax ({
Type: 'post ',
Url: '../dictionary/checkCodeOnly. do ',
Data: 'bean. code = '+ code +' & bean. flag = '+ flag,
DataType: 'json ',
Success: function (json ){
If (json> 0 ){
Slef.next().html ("this ID already exists! ");
Submit. attr ("disabled", true );
Return;
} Else {
Slef.next().html ("");
If (code! = Null & code! = ""){
Submit. attr ("disabled", false );
} Else {
Submit. attr ("disabled", true );
Return;
}
}
},
Error: function (){
Alert ('verification information error ');
}
});
}

Step 3 Page

The Code is as follows:

Download ID:

*

Step 4: Actions

The Code is as follows:

/**
*
* @ Author ZhuangZi
* @ Class com. hzdracom. action. YhaoPortalsDictionaryAction
* @ Method checkCodeOnly
* @ Directions verify the public method with the unique identifier
* @ Date 10:09:04 void
*/
Public void checkCodeOnly (){
String json = "";
Try {
Json = String. valueOf (yhaoDictionaryService. checkCodeOnly (bean ));
Json = JSON. toJSONString (json );
System. out. println ("json =" + json );
HttpServletResponse response = ServletActionContext. getResponse ();
Response. setContentType ("text/html ");
Response. setCharacterEncoding ("UTF-8 ");
PrintWriter out;
Out = response. getWriter ();
Out. println (json );
Out. flush ();
Out. close ();
} Catch (Exception e ){
E. printStackTrace ();
}
}

Step 5: Methods in dao

The Code is as follows:

Public int checkCodeOnly (DictionaryBean bean) throws DataAccessException, Exception {
Object [] sqlParams = new Object [4];
Int index = 0;
String SQL = "";
/* Verify that the page flag is unique */
If (bean. getFlag (). equals ("1 ")){
SQL = "select count (1) from YHAO_PORTALS_PAGE where PAGE_FLAG =? ";
SqlParams [index] = bean. getCode ();
Index ++;
}
/* Verify that the ID of the type log is unique */
If (bean. getFlag (). equals ("2 ")){
SQL = "select count (1) from YHAO_PORTALS_DOWNTYPE where DOWNTYPE_FLAG =? ";
SqlParams [index] = bean. getCode ();
Index ++;
}
/* Verify that the download log ID is unique */
If (bean. getFlag (). equals ("3 ")){
SQL = "select count (1) from YHAO_PORTALS_DOWN where DOWN_FLAG =? ";
SqlParams [index] = bean. getCode ();
Index ++;
}
If (bean. getFlag (). equals ("4 ")){
SQL = "select count (1) from YHAO_PORTALS_KUAI where KUAI_FLAG =? ";
SqlParams [index] = bean. getCode ();
Index ++;
}
Object [] sqlParamsEnd = new Object [index];
System. arraycopy (sqlParams, 0, sqlParamsEnd, 0, index );
Int count = this. queryForInt (SQL, sqlParamsEnd );
Return count;
}