Struts使用验证框架验证数据校验
2017-11-22 18:26
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Struts使用验证框架验证数据校验
一.ActionSupport验证简单实现：
第一步：导入jar包
第二步：配置过滤器web.xml
第三步：添加struts.xml（后续配置）
第四步：实体类：
第五步：rejister.jsp
第六步：registeSuccess.jsp
第七步：Action类编写：
第八步：配置Struts.xml
第九步：测试运行：
二.使用重写ActionSuppor类中Validate（）方法
只更改action类
三.使用validateXXX()，针对一个业务方法进行数据验证
更改action类和struts.xml
Action类更改如下：
Struts.xml配置如下：
四.使用验证框架
修改action类,添加UserAction-validation.xml,保持上述三中的struts.xml
Action类：
UserAction-validation.xml
五.针对一个业务进行配置文件
将上面的年龄验证和邮箱验证独立出来
1.改变UserAction-validation.xml
添加UserAction-register-validation.xml
资料参考网址：https://www.cnblogs.com/liunanjava/p/4383237.html
【提示：参考网址的内容特别详细。如果需要写好的源码，点击以下链接：】
源代码：
http://download.csdn.net/download/qq_25337221/10129073
本内容由安康学院"雨季"原创！
一.ActionSupport验证简单实现：
第一步：导入jar包
第二步：配置过滤器web.xml
| <?xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5"> <display-name>StrutsValidate</display-name> <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> <filter> <filter-name>struts2</filter-name> <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class> </filter> <filter-mapping> <filter-name>struts2</filter-name> <url-pattern>/*</url-pattern> </filter-mapping 4000 > </web-app> |
第四步：实体类：
| package entity; public class User { private String username; private String password; private Integer age; private String email; 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; } public Integer getAge() { return age; } public void setAge(Integer age) { this.age = age; } public String getEmail() { return email; } public void setEmail(String email) { this.email = email; } @Override public String toString() { return "User [username=" + username + ", password=" + password + ", age=" + age + ", email=" + email + "]"; } } |
| <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <%@taglib prefix="s" uri="/struts-tags" %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <title>注册页面</title> <meta http-equiv="pragma" content="no-cache"> <meta http-equiv="cache-control" content="no-cache"> <meta http-equiv="expires" content="0"> <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> <meta http-equiv="description" content="This is my page"> </head> <body> <!-- 判断字段是否有错误信息 --> <s:if test="hasFieldError()"> <h1 align="center">输出错误字段信息</h1> <div align="center" style="color: blue;"> 使用s:fielderror输出一个指定的错误信息 <s:fielderror name="user.username"> 使用s:fielderror输出全部的错误信息 </s:fielderror> </div> </s:if> <!-- 判断action是否有错误 --> <s:if test="hasActionError()"> <h1 align="center">输出错误Action信息</h1> <div align="center" style="color: gray;"> 使用s:actionerror输出action相关的错误信息 <s:actionerror/> </div> </s:if> <h1>使用execute业务方法直接校验</h1> <s:form action="register.action" method="post"> <s:textfield label="用户名" name="user.username"/> <s:password label="密码" name="user.password"/> <s:textfield label="年龄" name="user.age"/> <s:textfield label="邮箱" name="user.email"/> <s:submit value="提交" /> <s:reset value="重置"/> </s:form> <s:debug/> </body> </html> |
| <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <base href="<%=basePath%>"> <title>My JSP 'index.jsp' starting page</title> <meta http-equiv="pragma" content="no-cache"> <meta http-equiv="cache-control" content="no-cache"> <meta http-equiv="expires" content="0"> <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> <meta http-equiv="description" content="This is my page"> </head> <body> 登录成功！ </body> </html> |
| package action; import java.util.regex.Matcher; import java.util.regex.Pattern; import com.opensymphony.xwork2.ActionSupport; import entity.User; public class UserAction extends ActionSupport{ private User user; @Override public String execute() throws Exception { if (null==user.getUsername()||"".equals(user.getUsername())) { this.addFieldError("user.username","用户名不能为空"); } if (null==user.getPassword()||"".equals(user.getPassword())) { this.addFieldError("user.password", "密码不能为空"); } /* * ^ 表示以什么开通，$ 表示以什么结尾 {x,y} 表示字符的长度，x~y 表示后面必须跟数字，数字的长度为1~3个，就是说1个，2个，3个都可以 */ String ageStr="^\\d{1,3}$"; Pattern ageReg=Pattern.compile(ageStr); //编译 Matcher ageMatcher=ageReg.matcher(user.getAge()+""); //测试 if (!ageMatcher.matches()) { this.addFieldError("user.age","年龄只能是数字，并只能为1-200之间"); } if (null==user.getAge()) { this.addFieldError("user.age", "年龄不能为空"); } String emaString="^\\w+@\\w+(.\\w{2,3}){1,2}$"; Pattern emailReg=Pattern.compile(emaString); Matcher emailMatcher=emailReg.matcher(user.getEmail()); if (!emailMatcher.matches()) { this.addFieldError("user.email","邮箱格式不正确"); } if (this.hasErrors()) { this.addActionError("输入的注册信息不正确！"); return INPUT; } return SUCCESS; } public User getUser() { return user; } public void setUser(User user) { this.user = user; } } |
| <?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE struts PUBLIC "-//Apach 11a01 e Software Foundation//DTD Struts Configuration 2.3//EN" "http://struts.apache.org/dtds/struts-2.3.dtd"> <struts> <constant name="struts.enable.DynamicMethodInvocation" value="false"></constant> <constant name="struts.devMode" value="true"></constant> <package name="default" namespace="/" extends="struts-default"> <action name="register" class="action.UserAction"> <result name="input">/register.jsp</result> <result name="success">/registerSuccess.jsp</result> </action> </package> </struts> |
二.使用重写ActionSuppor类中Validate（）方法
只更改action类
| package action; import java.util.regex.Matcher; import java.util.regex.Pattern; import com.opensymphony.xwork2.ActionSupport; import entity.User; public class UserAction extends ActionSupport{ private User user; @Override public String execute() throws Exception { if (this.hasErrors()) { this.addActionError("输入的注册信息不正确！"); return INPUT; } return SUCCESS; } @Override public void validate() { if (null==user.getUsername()||"".equals(user.getUsername())) { this.addFieldError("user.username","用户名不能为空"); } if (null==user.getPassword()||"".equals(user.getPassword())) { this.addFieldError("user.password", "密码不能为空"); } /* * ^ 表示以什么开通，$ 表示以什么结尾 {x,y} 表示字符的长度，x~y 表示后面必须跟数字，数字的长度为1~3个，就是说1个，2个，3个都可以 */ String ageStr="^\\d{1,3}$"; Pattern ageReg=Pattern.compile(ageStr); //编译 Matcher ageMatcher=ageReg.matcher(user.getAge()+""); //测试 if (!ageMatcher.matches()) { this.addFieldError("user.age","年龄只能是数字，并只能为1-200之间"); } if (null==user.getAge()) { this.addFieldError("user.age", "年龄不能为空"); } String emaString="^\\w+@\\w+(.\\w{2,3}){1,2}$"; Pattern emailReg=Pattern.compile(emaString); Matcher emailMatcher=emailReg.matcher(user.getEmail()); if (!emailMatcher.matches()) { this.addFieldError("user.email","邮箱格式不正确"); } super.validate(); } public User getUser() { return user; } public void setUser(User user) { this.user = user; } } |
更改action类和struts.xml
Action类更改如下：
| package action; import java.util.regex.Matcher; import java.util.regex.Pattern; import com.opensymphony.xwork2.ActionSupport; import entity.User; public class UserAction extends ActionSupport{ private User user; public String register() throws Exception { if (this.hasErrors()) { this.addActionError("输入的注册信息不正确！"); return INPUT; } return SUCCESS; } @Override public void validate() { if (null==user.getUsername()||"".equals(user.getUsername())) { this.addFieldError("user.username","用户名不能为空"); } if (null==user.getPassword()||"".equals(user.getPassword())) { this.addFieldError("user.password", "密码不能为空"); } } public void validateRegister(){ /* * ^ 表示以什么开通，$ 表示以什么结尾 {x,y} 表示字符的长度，x~y 表示后面必须跟数字，数字的长度为1~3个，就是说1个，2个，3个都可以 */ String ageStr="^\\d{1,3}$"; Pattern ageReg=Pattern.compile(ageStr); //编译 Matcher ageMatcher=ageReg.matcher(user.getAge()+""); //测试 if (!ageMatcher.matches()) { this.addFieldError("user.age","年龄只能是数字，并只能为1-200之间"); } if (null==user.getAge()) { this.addFieldError("user.age", "年龄不能为空"); } String emaString="^\\w+@\\w+(.\\w{2,3}){1,2}$"; Pattern emailReg=Pattern.compile(emaString); Matcher emailMatcher=emailReg.matcher(user.getEmail()); if (!emailMatcher.matches()) { this.addFieldError("user.email","邮箱格式不正确"); } } public User getUser() { return user; } public void setUser(User user) { this.user = user; } } |
| <?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.3//EN" "http://struts.apache.org/dtds/struts-2.3.dtd"> <struts> <constant name="struts.enable.DynamicMethodInvocation" value="false"></constant> <constant name="struts.devMode" value="true"></constant> <package name="default" namespace="/" extends="struts-default"> <action name="register" class="action.UserAction" method="register"> <result name="input">/register.jsp</result> <result name="success">/registerSuccess.jsp</result> </action> </package> </struts> |
修改action类,添加UserAction-validation.xml,保持上述三中的struts.xml
Action类：
| package action; import com.opensymphony.xwork2.ActionSupport; import entity.User; public class UserAction extends ActionSupport{ private User user; public String register() throws Exception { if (this.hasErrors()) { this.addActionError("输入的注册信息不正确！"); return INPUT; } return SUCCESS; } public User getUser() { return user; } public void setUser(User user) { this.user = user; } } |
| <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE validators PUBLIC "-//Apache Struts//XWork Validator 1.0.3//EN" "http://struts.apache.org/dtds/xwork-validator-1.0.3.dtd"> <validators> <!-- 用户名验证 --> <field name="user.username"> <field-validator type="requiredstring"> <param name="trim">true</param> <message>用户名不能为空!</message> </field-validator> <field-validator type="stringlength"> <param name="minLength">4</param> <param name="maxLength">16</param> <param name="trim">true</param> <message>用户名必须为${minLength}至${maxLength}个字符！,当前为${user.username} </message> </field-validator> </field> <!--密码 --> <field name="user.password"> <field-validator type="requiredstring"> <param name="trim">true</param> <message>密码不能为空!</message> </field-validator> <field-validator type="stringlength"> <!--去掉前后的空格 --> <param name="trim">true</param> <param name="minLength">6</param> <param name="maxLength">20</param> <message>密码必须为${minLength}至${maxLength}个字符,当前为${user.password} </message> </field-validator> </field> <!--年龄 --> <field name="user.age"> <field-validator type="required"> <param name="trim">true</param> <message>年龄不能为空</message> </field-validator> <field-validator type="int"> <param name="trim">true</param> <param name="min">1</param> <param name="max">200</param> <message>年龄为${min}---${max}岁之间</message> </field-validator> </field> <field name="user.email"> <field-validator type="requiredstring"> <param name="trim">true</param> <message>邮箱不能为空</message> </field-validator> <field-validator type="email"> <param name="trim">true</param> <message>邮箱格式不正确!</message> </field-validator> </field> </validators> |
将上面的年龄验证和邮箱验证独立出来
1.改变UserAction-validation.xml
| <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE validators PUBLIC "-//Apache Struts//XWork Validator 1.0.3//EN" "http://struts.apache.org/dtds/xwork-validator-1.0.3.dtd"> <validators> <!-- 用户名验证 --> <field name="user.username"> <field-validator type="requiredstring"> <param name="trim">true</param> <message>用户名不能为空!</message> </field-validator> <field-validator type="stringlength"> <param name="minLength">4</param> <param name="maxLength">16</param> <param name="trim">true</param> <message>用户名必须为${minLength}至${maxLength}个字符！,当前为${user.username} </message> </field-validator> </field> <!--密码 --> <field name="user.password"> <field-validator type="requiredstring"> <param name="trim">true</param> <message>密码不能为空!</message> </field-validator> <field-validator type="stringlength"> <!--去掉前后的空格 --> <param name="trim">true</param> <param name="minLength">6</param> <param name="maxLength">20</param> <message>密码必须为${minLength}至${maxLength}个字符,当前为${user.password} </message> </field-validator> </field> </validators> |
| <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE validators PUBLIC "-//Apache Struts//XWork Validator 1.0.3//EN" "http://struts.apache.org/dtds/xwork-validator-1.0.3.dtd"> <validators> <!--年龄 --> <field name="user.age"> <field-validator type="required"> <param name="trim">true</param> <message>年龄不能为空</message> </field-validator> <field-validator type="int"> <param name="trim">true</param> <param name="min">1</param> <param name="max">200</param> <message>年龄为${min}---${max}岁之间</message> </field-validator> </field> <field name="user.email"> <field-validator type="requiredstring"> <param name="trim">true</param> <message>邮箱不能为空</message> </field-validator> <field-validator type="email"> <param name="trim">true</param> <message>邮箱格式不正确!</message> </field-validator> </field> </validators> |
【提示：参考网址的内容特别详细。如果需要写好的源码，点击以下链接：】
源代码：
http://download.csdn.net/download/qq_25337221/10129073
本内容由安康学院"雨季"原创！
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