hibernate - spring form validation : Unable to print errors in jsp -
i working on spring mvc application, here have form user can change password, here validating form using spring form validation implements "org.springframework.validation.validator" class.
please @ code snippets. <%@ taglib uri="http://www.springframework.strong textorg/tags/form" prefix="spring"%> <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%> <%@ taglib uri="http://java.sun.com/jsp/jstl/functions" prefix="fn"%> <%@ page language="java" contenttype="text/html; charset=iso-8859-1" pageencoding="iso-8859-1"%> <!doctype html public "-//w3c//dtd html 4.01 transitional//en" "http://www.w3.org/tr/html4/loose.dtd"> <html> <head> <meta http-equiv="content-type" content="text/html; charset=iso-8859-1"> <title> change password </title> </head> <body> <%@include file="index.jsp" %> <div class="row"> <div class="container" style=" background-color: #f9ffed; "> <div> <h4><label>change password:</label></h4> </div> <div class="col-md-12" > <spring:form commandname="changepassword" action="changepassword.do" method="post"> <table> <tr> <td><label for="current_pwd" >current password</label></td> <td><spring:input path="current_pwd" type="text" class="form-control" placeholder="name"/></td> <td><spring:errors path="current_pwd" type="text" cssstyle="color: red;"></spring:errors></td> </tr> <tr> <td> </td> </tr> <tr> <td><label for="newpassword" >new password</label></td> <td><spring:input path="newpassword" type="text" class="form-control" placeholder="password"/></td> <td><spring:errors path="newpassword" type="text" cssstyle="color: red;"></spring:errors></td> </tr> <tr> <td> </td> </tr> <tr> <td><label for="confirmpassword" >confirm password</label></td> <td><spring:input path="confirmpassword" type="text" class="form-control" placeholder="password"/></td> <td><spring:errors path="confirmpassword" type="text" cssstyle="color: red;"></spring:errors></td> </tr> <tr> <td> </td> </tr> <tr> <td> <button type="submit" class="btn btn-success"> save </button> <a href="listusers.do" class="btn btn-success"> cancel </a> </td> </tr> </table> </spring:form> </div> </div> </div> </body> </html> controller , post methods
@requestmapping(value="/changepassword",method=requestmethod.get) public string changepassword(changepassword chpaswd,bindingresult result,modelmap model){ chpaswd=new changepassword(); model.addattribute("changepassword",chpaswd); return "changepassword"; }
@requestmapping(value="/changepassword",method=requestmethod.post) public string changepasswordpost(changepassword chpwd,bindingresult result,modelmap model,httpsession session){ string message=""; changepwdvalidator.validate(chpwd, result); chpwd=new changepassword(); if(result.hasfielderrors()){ system.out.println("has errors"); model.addattribute("changepassword",chpwd); return "changepassword"; }else{ system.out.println("chnage pwd values :"+chpwd.getnewpassword()+","+"current pwd:"+chpwd.getcurrent_pwd()); try{ // other operations model.addattribute("changepassword",chpwd); }catch(exception e){ message="failed process request, please re-verify values!"; model.addattribute("message", message); } return "changepassword"; } }validator class
import org.springframework.validation.errors; import org.springframework.validation.validationutils; import org.springframework.validation.validator;
import com.knot.pirautomation.models.changepassword; public class changepasswordvalidator implements validator{ changepassword chngepwd; public boolean supports(class clazz) { return changepassword.class.equals(clazz); } public void validate(object target, errors errors) { if(target instanceof changepassword){ chngepwd=(changepassword) target; system.out.println("----------"); system.out.println("old pwd:"+chngepwd.getcurrent_pwd()); system.out.println("new pwd:"+chngepwd.getnewpassword()); system.out.println("confirm pwd:"+chngepwd.getconfirmpassword()); system.out.println("----------"); validationutils.rejectifemptyorwhitespace(errors, "newpassword", "newpassword.required"); validationutils.rejectifemptyorwhitespace(errors, "confirmpassword", "confirmpassword.required"); validationutils.rejectifemptyorwhitespace(errors, "current_pwd", "oldpassword.required"); if( !(chngepwd.getnewpassword().equals(chngepwd.getconfirmpassword()))){ errors.rejectvalue("newpassword", "newpassword.match"); } if((chngepwd.getnewpassword().length()<8)){ errors.rejectvalue("newpassword", "newpasswordlength.match" ); } if((chngepwd.getconfirmpassword().length()<8)){ errors.rejectvalue("confirmpassword", "confirmpasswordlength.match" ); } string blacklistchars = "!'=();<> \""; char blacklistarr[] = blacklistchars.tochararray(); for(int i=0;i<blacklistarr.length;i++) { if(chngepwd.getnewpassword().contains("" + blacklistarr[i])) { errors.rejectvalue("newpassword","newpassword.invalidchars"); break; } } for(int i=0;i<blacklistarr.length;i++) { if(chngepwd.getconfirmpassword().contains("" + blacklistarr[i])) { errors.rejectvalue("confirmpassword","confirmpassword.invalidchars"); break; } } } } }error.properties file
oldpassword.required= old password required newpassword.required= new password required confirmpassword.required= confirm password should required newpassword.match= confirmation passwords should match newpasswordlength.match= new password should @ least 8 characters confirmpasswordlength.match= confirm password should @ least 8 characters newpassword.invalidchars=new password has special characters not allowed confirmpassword.invalidchars= confirm password has special characters not allowed
you can see when form has errors, returning control same jsp. unable trace bug/error springform validation working fine,but when trying display errors defined in properties file.
please 1 me on issue.
use this...you should not explicitly invoking validator.
@valid @modelattribute("forname") formname formname, bindingresult bindingresult, model model, redirectattributes redirectattributes, httpsession session
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