有关struts2的validate验证-优快云博客

本文链接：https://blog.youkuaiyun.com/lingkaigood123/article/details/6339809

本文介绍了Struts2框架中的两种验证方式：基于配置文件的简单格式验证和需要服务器进行业务逻辑判断的验证。通过示例展示了如何配置验证规则及执行验证的过程。

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一、基于配置文件的验证，这种验证只适合简单的格式验证不用于后台逻辑验证跟action位于同一个包下命名为xxaction-validation.xml

这是全局验证要是action里面有很多个方法对具体方法验证则xxaction-xx(方法名)-validation.xml

<?xml version="1.0" encoding="UTF-8"?> <!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="User_username"> <field-validator type="requiredstring"> <param name="trim">true</param> <message>请输入用户名</message> </field-validator> </field> <field name="User_password"> <field-validator type="requiredstring"> <message>请输入密码</message> </field-validator> </field> <field name="verifycode"> <field-validator type="requiredstring"> <message>请输入验证码</message> </field-validator> </field> </validators>

struts.xml

<?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.1//EN" "http://struts.apache.org/dtds/struts-2.1.dtd"> <package name="login" namespace="/" extends="default" > <action name="login" class="com.sys.action.LoginAction"> <result name="input">/index.jsp</result> <result name="success">/admin/index.jsp</result> </action> </struts>

第二种需要服务器业务判断的public class LoginAction extends ActionSupport { private String User_role; private String User_username; private String User_password; private String verifycode; public String getVerifycode() { return verifycode; } public void setVerifycode(String verifycode) { this.verifycode = verifycode; } public String getUser_role() { return User_role; } public void setUser_role(String userRole) { User_role = userRole; } public String getUser_username() { return User_username; } public void setUser_username(String userUsername) { User_username = userUsername; } public String getUser_password() { return User_password; } public void setUser_password(String userPassword) { User_password = userPassword; } @Override public void validate() { super.validate(); HttpSession session=ServletActionContext.getRequest().getSession(); String indentity = (String)session.getAttribute("indentity"); if(this.getUser_username().equals("")){ this.addFieldError("User_username", "账号不能为空"); } if(this.getUser_password().equals("")){ this.addFieldError("User_password", "密码不能为空"); } if(!(verifycode.equalsIgnoreCase(indentity))){ this.addFieldError("verifycode", "验证码不正确"); } } public String execute() { System.out.print(User_role); System.out.print(User_password); if(hasFieldErrors()){ return INPUT; }else{