jquery struts verify unique identification (public method)_jquery

Step 1: Import the js file

Copy the code The code is as follows:

< ;script language="javascript1.2" src="">

Step 2 public js file dictionary.js

Copy code The code is as follows:

/**
*↓↓↓↓↓↓↓↓↓↓
*Author: ZhuangZi
*Class name: Public method initialization
*Function: Public method initialization
*Details: Public method initialization
*Version: 1.0
*Date: 2013-03-22
*Description:
*↑↑↑↑↑↑↑↑↑↑
*/
$(function(){
/*1. Lost focus verification↓↓↓*/
$("#code").blur(callback);/ /1.code is the control ID of the only sign you want to verify 2. There must be a control behind your control that receives error information
/*2. Verify when submitting ↓↓↓*/
$("# submit").click(callback);//Submit button ID of your page
});
/**
*↓↓↓↓↓↓↓↓↓↓
*Author: ZhuangZi
*Class name: Verify unique identification public method
*Function: Unique verification
*Details: Unique identification ID and submit button ID must be consistent with the following
* Version: 1.0
* Date: 2013-03-22
* Description:
*↑↑↑↑↑↑↑↑↑↑
*/
function callback() {
var slef=$( "#code");
var code=slef.val();
var submit=$("#submit");
var flag=$("#flag").val();
if(null==code||""==code){
slef.next().html("The download package ID cannot be empty!");
submit.attr("disabled" ,true);
return;
}else{
if(!code.match("^\w $")){
slef.next().html("Identified by alphanumeric letters Or composed of 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 identifier 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 part

Copy code The code is as follows:

                                                       Download logo:
  id="code" name="yhaoPortalsDownBean.downFlag" cssClass="textfrom" cssStyle="width:150px;" maxlength="200"/>
                                                    ;* 🎜>



Copy code

The code is as follows:

/**
*
* @author ZhuangZi
* @class com.hzdracom.action.YhaoPortalsDictionaryAction
* @method checkCodeOnly
* @Directions Verify unique identification public method
* @date 2013- 3-21 10:09:04 AM 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();
}
}

Method in step five

Copy code The code is as follows:

 public int checkCodeOnly(DictionaryBean bean)throws DataAccessException,Exception { <br>Object[] sqlParams = new Object[4]; <br>int index = 0 ; <br>String sql=""; <br>/* Verify whether the page flag is unique*/ <br>if (bean.getFlag().equals("1")) { <br>sql = "select count( 1) from YHAO_PORTALS_PAGE where PAGE_FLAG = ? "; <br>sqlParams[index]=bean.getCode(); <br>index ; <br>} <br>/* Verify whether the type flag is unique*/ <br>if (bean.getFlag().equals("2")) { <br>sql = "select count(1) from YHAO_PORTALS_DOWNTYPE where DOWNTYPE_FLAG = ? "; <br>sqlParams[index]=bean.getCode(); <br>index ; <br>} <br>/* Verify whether the download log identifier is unique*/ <br>if (bean.getFlag().equals("3")) { <br>sql = "select count(1) from YHAO_PORTALS_DOWN where DOWN_FLAG = ? "; <br>sqlParams[index]=bean.getCode(); <br>index ; <br>} <br>if (bean.getFlag().equals("4")) { <br>sql = "select count(1) from YHAO_PORTALS_KUAI where KUAI_FLAG = ? "; <br>sqlParams[index]=bean.getCode(); <br>index ; <br>} <br>Object[] sqlParamsEnd = new Object[index]; <br>System.arraycopy(sqlParams, 0, sqlParamsEnd, 0, index); <br>int count = this.queryForInt(sql,sqlParamsEnd); <br>return count; <br>}&lt ;/PRE> <br><PRE>