20171009_chr_validate Struts2输入校验

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Struts2输入校验

/20171009_chr_validate/src/nuc/sw/action/LoginAction.java

package nuc.sw.action;import java.util.regex.Pattern;import com.opensymphony.xwork2.ActionContext;import com.opensymphony.xwork2.ActionSupport;public class LoginAction extends ActionSupport {    //属性驱动校验    private String username;    private String password;    public String getUsername() {      return username;    }    public void setUsername(String username) {      this.username = username;    }    public String getPassword() {      return password;    }    public void setPassword(String password) {      this.password = password;    }    //手动检验    @Override    public void validate() {    // TODO Auto-generated method stub    //进行数据校验，长度6~15位           if(username.trim().length()<6||username.trim().length()>15||username==null)         {            this.addFieldError("username", "用户名长度不合法！");        }        if(password.trim().length()<6||password.trim().length()>15||password==null)         {            this.addFieldError("password", "密码长度不合法！");        }    }    //登陆业务逻辑    public String loginMethod() {        if(username.equals("chenghaoran")&&password.equals("12345678")) {            ActionContext.getContext().getSession().put("user", username);            return "loginOK";        }else {            this.addFieldError("err","用户名或密码不正确！");            return "loginFail";        }    }    //手动校验validateXxx    public void validateLoginMethod() {        //使用正则校验        if(username==null||username.trim().equals("")) {            this.addFieldError("username","用户名不能为空！");        }else {            if(!Pattern.matches("[a-zA-Z]{6,15}", username.trim())) {                this.addFieldError("username", "用户名格式错误！");            }        }        if(password==null||password.trim().equals("")) {            this.addFieldError("password","密码不能为空！");        }else {            if(!Pattern.matches("\\d{6,15}", password.trim())) {                this.addFieldError("password", "密码格式错误！");            }        }    }}

/20171009_chr_validate/src/struts.xml

<struts>    <!-- Add packages here -->    <package name="Login" namespace="/" extends="struts-default">      <action name="loginAction" class="nuc.sw.action.LoginAction" method="loginMethod">       <result name="loginOK">        /welcome.jsp       </result>       <result name="loginFail">        /login.jsp       </result>       <result name="input">        /login.jsp       </result>      </action>     </package></struts>

/20171009_chr_validate/WebContent/login.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"    pageEncoding="UTF-8"%><%@ taglib prefix="s" uri="/struts-tags" %>    <!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=UTF-8"><title>登录页</title></head><body>  <s:fielderror fieldName="err"></s:fielderror>  <s:form action="loginAction" method="post">     <s:textfield label="用户名" name="username"></s:textfield>    <s:password label="密码" name="password"></s:password>    <s:submit value="登陆"></s:submit>  </s:form></body></html>

/20171009_chr_validate/WebContent/welcome.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"    pageEncoding="UTF-8"%><!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=UTF-8"><title>欢迎页</title></head><body>  欢迎${sessionScope.user}登陆！</body></html>

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