Spring MVC使用JSR 303进行前端数据检验
相对于Spring本身的validation框架， JSR 303校验显得更简单，易操作。 关键的两个文件如下： User.java package org.fkit.domain; import java.io.Serializable; import java.util.Date; import javax.validation.constraints.Past; import javax.validation.constraints.Pattern; import org.hibernate.validator.constraints.Email; import org.hibernate.validator.constraints.Length; import org.hibernate.validator.constraints.NotBlank; import org.hibernate.validator.constraints.Range; import org.springframework.format.annotation.DateTimeFormat; public class User implements Serializable { /** * */ private static final long serialVersionUID = 1L; @NotBlank(message="登陆名不能为空") private String loginName; @NotBlank(message="密码不能为空") @Length(min=6, max=8, message="密码长度必须在6位到8位之间") private String password; @NotBlank(message="用户名不能为空") private String username; @Range(min=15, max=60, message="年龄必须在15岁到60岁之间") private int age; @Email(message="必须是合法的邮箱地址") private String email; @DateTimeFormat(pattern="yyyy-MM-dd") @Past(message="生日必须是一个过去的日期") private Date birthDate; @Pattern(regexp="[1][3,8][3,6,9][0-9]{8}", message="无效的电话号码") private String phone; public String getLoginName() { return loginName; } public void setLoginName(String loginName) { this.loginName = loginName; } public String getPassword() { return password; } public void setPassword(String password) { this.password = password; } public String getUsername() { return username; } public void setUsername(String username) { this.username = username; } public int getAge() { return age; } public void setAge(int age) { this.age = age; } public String getEmail() { return email; } public void setEmail(String email) { this.email = email; } public Date getBirthDate() { return birthDate; } public void setBirthDate(Date birthDate) { this.birthDate = birthDate; } public String getPhone() { return phone; } public void setPhone(String phone) { this.phone = phone; } } registerForm.jsp <%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8" %> <%@ taglib prefix="form" uri="http://www.springframework.org/tags/form" %> <%@ taglib prefix="spring" uri="http://www.springframework.org/tags" %> <!DOCTYPE html PUBLIC "-//W3C/DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd" > <html> <head> <meta content="text/html; charset=UTF-8" http-equiv="Content-Type"> <title>测试JSR 303</title> </head> <body> <h3>注册页面</h3> <br> <form:form action="login" method="post" modelAttribute="user"> <table> <tr> <td><label>登陆名: </label></td> <td><form:input path="loginName" /></td> <td><form:errors path="loginName" cssStyle="color:red" /></td> </tr> <tr> <td><label>密码: </label></td> <td><form:input path="password" /></td> <td><form:errors path="password" cssStyle="color:red" /></td> </tr> <tr> <td><label>用户名: </label></td> <td><form:input path="username" /></td> <td><form:errors path="username" cssStyle="color:red" /></td> </tr> <tr> <td><label>年龄: </label></td> <td><form:input path="age" /></td> <td><form:errors path="age" cssStyle="color:red" /></td> </tr> <tr> <td><label>邮箱: </label></td> <td><form:input path="email" /></td> <td><form:errors path="email" cssStyle="color:red" /></td> </tr> <tr> <td><label>生日: </label></td> <td><form:input path="birthDate" /></td> <td><form:errors path="birthDate" cssStyle="color:red" /></td> </tr> <tr> <td><label>电话: </label></td> <td><form:input path="phone" /></td> <td><form:errors path="phone" cssStyle="color:red" /></td> </tr> <tr> <td><input id="submit" type="submit" value="submit"></td> </tr> </table> </form:form> </body> </html>
