JavaWeb -- Struts2 验证框架
1. 验证框架 示例
表单提交Jsp, reg.jsp
<%@ page language="java" contentType="text/html; charset=utf-8"%> <%@taglib uri="/struts-tags" prefix="s"%> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <title>reg.jsp</title> </head> <body> <s:actionerror/> <!-- validate="true" 能够在客户端生成脚本校验 --> <s:form namespace="/validate" action="ValidateAction_reg" method="post" theme="xhtml" validate="true"> <s:textfield name="name" label="UserName" /> <s:textfield name="age" label="UserAge" /> <s:textfield name="password" label="password" /> <s:textfield name="confirmPassword" label="confirmPassword" /> <s:submit /> </s:form> </body> </html>
处理action
public class ValidateAction extends ActionSupport {
private static final long serialVersionUID = -6933309304624396640L;
private String name;
private Integer age;
private String password ;
private String confirmPassword ;
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String getConfirmPassword() {
return confirmPassword;
}
public void setConfirmPassword(String confirmPassword) {
this.confirmPassword = confirmPassword;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Integer getAge() {
return age;
}
public void setAge(Integer age) {
this.age = age;
}
public String reg() {
return "success";
}
@SkipValidation
public String toRegView() {
System.out.println("toRegView");
return "regView";
}
}
struts2配置文件 validate.xml， 校验表单需要加 input result，有错误回跳
<?xml version="1.0"?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.1.7//EN"
"http://struts.apache.org/dtds/struts-2.1.7.dtd">
<struts>
<package name="ValidatePkg" namespace="/validate" extends="struts-default">
<action name="ValidateAction_*" class="cn.itcast.struts2.validate.ValidateAction" method="{1}">
<result name="success">/validate/reg.jsp</result>
<result name="regView">/validate/reg.jsp</result>
<result name="input">/validate/reg.jsp</result>
</action>
</package>
</struts>
ValidateAction-validation.xml 校验选项配置
<?xml version="1.0"?>
<!DOCTYPE validators PUBLIC
"-//OpenSymphony Group//XWork Validator 1.0.2//EN"
"http://www.opensymphony.com/xwork/xwork-validator-1.0.2.dtd">
<validators>
<field name="name">
<field-validator type="requiredstring">
<message>name is required</message>
</field-validator>
<field-validator type="stringlength">
<param name="minLength">5</param>
<param name="maxLength">10</param>
<message key="error.name.length" />
</field-validator>
<field-validator type="email">
<message>name is invalid email address!</message>
</field-validator>
</field>
<field name="age">
<field-validator type="required">
<message>age is required</message>
</field-validator>
<field-validator type="int">
<param name="min">20</param>
<param name="max">100</param>
<message>age rang is wrong!</message>
</field-validator>
</field>
<validator type="expression">
<param name="expresssion">password == confirmPassword</param>
<message>password input isn't the same!</message>
</validator>
</validators>
message 国际化 文件 ValidateAction.properties
label.name=userName
error.name.length=${name} is goog name,but length must be between ${minLength} and ${maxLength}.
字段校验type list
