javase:String+正则实现注册功能
2021/9/24 1:41:04
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javase:String+正则实现注册功能
使用String工具类实现简单的注册功能,主要包括使用正则表达式判断输入的字符串是否合法,结合异常抛出,完善了注册的功能,使其更加像一个完整项目中的功能
User.java
package StringRegularExpression; import java.io.Serializable; import java.util.Objects; public class User implements Serializable { private int id ; private String userName; private String password; private int age; private boolean gender; public String getUserName() { return userName; } public boolean isGender() { return gender; } public int getAge() { return age; } public String getPassword() { return password; } public int getId() { return id; } public User(){ super(); } public User(int id,String userName,String password,int age,boolean gender){ super(); this.id = id; this.userName = userName; this.password = password; this.age = age; this.gender = gender; } public void setId(int id){ this.id = id; } public void setUserName(String password){ this.userName = userName; } public void setPassword(String password) { this.password = password; } public void setAge(int age){ this.age = age; } public void setGender(boolean gender){ this.gender = gender; } @Override public boolean equals(Object o) { if (this == o) return true; if (!(o instanceof User)) return false; User user = (User) o; return id == user.id && age == user.age && gender == user.gender && userName.equals(user.userName) && password.equals(user.password); } @Override public int hashCode() { return Objects.hash(id, userName, password, age, gender); } }
UserDemo.java
package StringRegularExpression; import java.io.Serializable; import java.util.Objects; public class User implements Serializable { private int id ; private String userName; private String password; private int age; private boolean gender; public String getUserName() { return userName; } public boolean isGender() { return gender; } public int getAge() { return age; } public String getPassword() { return password; } public int getId() { return id; } public User(){ super(); } public User(int id,String userName,String password,int age,boolean gender){ super(); this.id = id; this.userName = userName; this.password = password; this.age = age; this.gender = gender; } public void setId(int id){ this.id = id; } public void setUserName(String password){ this.userName = userName; } public void setPassword(String password) { this.password = password; } public void setAge(int age){ this.age = age; } public void setGender(boolean gender){ this.gender = gender; } @Override public boolean equals(Object o) { if (this == o) return true; if (!(o instanceof User)) return false; User user = (User) o; return id == user.id && age == user.age && gender == user.gender && userName.equals(user.userName) && password.equals(user.password); } @Override public int hashCode() { return Objects.hash(id, userName, password, age, gender); } }
InputInfoException.java
package StringRegularExpression; public class InputInfoException extends Exception { public InputInfoException() { } public InputInfoException(String message) { super(message); } public InputInfoException(String message, Throwable cause) { super(message, cause); } public InputInfoException(Throwable cause) { super(cause); } public InputInfoException(String message, Throwable cause, boolean enableSuppression, boolean writableStackTrace) { super(message, cause, enableSuppression, writableStackTrace); } }
小结:这算是一个结构比较完整的注册功能,User类中的get方法,set方法,hasCode方法等都以定义,主函数中也有对异常的处理。通过这个demo主要还是学会使用正则表达式处理数据,在完整项目中可以更加方便的处理数据。
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