The check is divided into:
1:javascript Regular Expressions
2:javaee in Validation ()
A: User registration information userdetails.jsp
1 <%@ Page Language="Java"ContentType="text/html; Charset=utf-8"2 pageencoding="UTF-8"%>3 <%@ taglib Prefix="s"URI="/struts-tags"%>4 <!DOCTYPE HTML PUBLIC "-//w3c//dtd HTML 4.01 transitional//en" "Http://www.w3.org/TR/html4/loose.dtd ">5 <HTML>6 <Head>7 <Metahttp-equiv= "Content-type"content= "text/html; charset=utf-8">8 <title>Registration page</title>9 </Head>Ten <Body> One <S:fielderror></S:fielderror> A <formAction= "Userdetailsaction"Method= "POST"> -User name:<inputtype= "text"name= "username" /><BR> -Birthday:<inputtype= "text"name= "Birthday" />(In the format: YYYY-MM-DD)<BR> theDetailed Address:<inputtype= "text"name= "Address">Province - <inputtype= "text"name= "Address">City - <inputtype= "text"name= "Address">Area<BR> - <inputtype= "text"name= "Address"/> + <inputtype= "Submit"value= "Register"> - </form> + </Body> A </HTML>
Two: Write the set get method in action nuc.sw.action--->userdetailsaction.java
1 package nuc.sw.action; 2 import java.util.Date; 3 import com.opensymphony.xwork2.ActionSupport; 4 5 Import NUC.SW . Vo. Address; 6 public class Userdetailsaction extends actionsupport{7 private String username; 8//Note Type 9 private Date birthday;10//Must be an address type. Otherwise, it cannot be obtained. One private Address address;12 public Date getbirthday () {return birthday;14}15 public void Setbirthday (Date birthday) {this.birthday = birthday;17}18 public String GetUserName () {RET Urn username;20}21 public void Setusername (String username) {this.username = username;23}24 25 26 Public Address getaddress () {address;29}30, public void setaddress (address address ) {this.address = address;34}35-Notoginseng public String Registermethod () throws Exception {Retu RN success;39}40} Three: Get address type so write Address.java--->nuc.sw.vo
Package Nuc.sw.vo;public class Address { private String province; Private String city; Private String County; Private String Street; Public Address (String province, String city, String county, String street) { super (); this.province = Province; this.city = City; This.county = county; This.street = Street; } Public String getprovince () { return province; } public void Setprovince (String province) { this.province = province; } Public String getcity () { return city; } public void Setcity (String city) { this.city = city; } Public String Getcounty () { return county; } public void Setcounty (String county) { this.county = county; } Public String Getstreet () { return street; } public void Setstreet (String street) { this.street = Street; }}Four: Configuration Struts.xml
1 <?xml version= "1.0" encoding= "UTF-8"?> 2 <! DOCTYPE struts Public 3 "-//apache software foundation//dtd struts Configuration 2.3//en" 4 "/http Struts.apache.org/dtds/struts-2.3.dtd "> 5 6 <struts> 7 <constant name=" Struts.devmode "value=" True "/> 8 <package name=" Default "namespace="/"extends=" Struts-default "> 9 <action name=" Userdetailsaction "class=" nuc.sw.action.UserDetailsAction "method=" Registermethod ">10 <result>/ showuserdetails.jsp</result>11 <result name= "input" >/userdetails.jsp</result>12 </ action>13 </package>14 </struts>
V: After the user submits the information to display showuserdetails.jsp
The month of the birthday requires mm---mm finger time
1 <%@ page language= "java" contenttype= "text/html; Charset=utf-8 "2 pageencoding=" Utf-8 "%> 3 <%@ taglib prefix=" s "uri="/struts-tags "%> 4 <! DOCTYPE HTML PUBLIC "-//w3c//dtd HTML 4.01 transitional//en" "Http://www.w3.org/TR/html4/loose.dtd" > 5Six: The submitted address information is a string, the last to be output as an object, so you need to customize the converter
Nuc.sw.action--->addressconverter.java
1 package nuc.sw.action; 2 3 Import Java.util.Map; 4 5 Import Org.apache.struts2.util.StrutsTypeConverter; 6 Import nuc.sw.vo.Address; 7 public class Addressconverter extends Strutstypeconverter {8 9/*10 * 1: Converter must inherit StrutsTypeConverter11 * 2: From Take method string to value (address) 12 * 3: Self-bringing method value to string */14 @Override15 public Object convertfromstring (Map a RG0, string[] arg1, Class arg2) {16 17//Here can be abbreviated code, but must be in Address.java write construction method Address Address=new ADD Ress (Arg1[0],arg1[1],arg1[2],arg1[3]); 4 values in address in//string[]//Address.setprovince (arg1[0]); 22/ /address.setcity (arg1[1]);//Address.setcounty (arg1[2]); +//Address.setstreet (arg1[3]); 25 Return address;26}27 @Override30 public String converttostring (Map arg0, Object arg1) {31 AG1 is the parent class, address is a subclass and requires casting. if (arg1 instanceof address) {address a= (address) arg1;34 return a. Getprovince () + "province" +a.getcity () + "city" +a.getcounty () + "district" +a.getstreet ();}36 else37 return null;38 }39 40}Seven: Local Converter---Write the profile of the property name in the action---and action in the sibling directory
Address=nuc.sw.action.addressconverter
Eight: Verify the user name Nuc/sw/action--->userdetailsaction-validation.xml
1 <?XML version= "1.0" encoding= "UTF-8"?>2 <!DOCTYPE validators Public3 "-//apache struts//xwork Validator 1.0.2//en"4 "Http://struts.apache.org/dtds/xwork-validator-1.0.2.dtd">5 <validators>6 <Fieldname= "username">7 <Field-validatortype= "Requiredstring">8 <paramname= "Trim">True</param>9 <message>User name cannot be empty</message>Ten </Field-validator> One <Field-validatortype= "Regex"> A <paramname= "Regexexpression">^\w{4,25}$</param> - <message>The user name must be 4-25-bit</message> - </Field-validator> the </Field> - </validators>Nine: Project structure:
Ten: Running results
struts2-15-users of the famous school inspection
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