public class LoginAction extends ActionSupport {

本文介绍了一个基于Struts2框架的简单登录Action实现,包括页面元素值的获取及处理逻辑。通过继承ActionSupport类并定义登录用户名与密码属性,展示了如何在Action中进行基本的操作。
package com.tfy.actions;


import com.opensymphony.xwork2.ActionSupport;


@SuppressWarnings("serial")
public class LoginAction extends ActionSupport {
private String logonName;
private String logonPwd;
public String home(){
System.out.println("LoginAction tfy home()");

return "home";
}
public String getLogonName() {
return logonName;
}
public void setLogonName(String logonName) {
System.out.println("这个方法是获取页面元素setLogonName的值");
this.logonName = logonName;
}
public String getLogonPwd() {
return logonPwd;
}
public void setLogonPwd(String logonPwd) {
this.logonPwd = logonPwd;
}

}
public class LoginBean { private String username; private String password; // 数据库连接设置 private static final String DB_URL = "jdbc:mysql://localhost:3306/test?serverTimezone=Asia/Shanghai"; private static final String DB_USERNAME = "root"; private static final String DB_PASSWORD = "123456"; public LoginBean(String username, String password) { this.username = username; this.password = password; } public boolean validate() { try { // 加载 MySQL 驱动 Class.forName("com.mysql.cj.jdbc.Driver"); // 连接数据库 Connection conn = DriverManager.getConnection(DB_URL, DB_USERNAME, DB_PASSWORD); String query = "SELECT * FROM user WHERE username = ? AND password = ?"; PreparedStatement stmt = conn.prepareStatement(query); stmt.setString(1, username); stmt.setString(2, password); ResultSet rs = stmt.executeQuery(); if (rs.next()) { return true; // 用户名和密码匹配 } rs.close(); stmt.close(); conn.close(); } catch (Exception e) { System.err.println("连接数据库时出现异常:" + e.getMessage()); e.printStackTrace(); } return false; // 登录失败 }public class LoginAction extends ActionSupport { private String username; private String password; private LoginBean loginBean; // Getter 和 Setter 方法 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; } // 登录操作 public String execute() { loginBean = new LoginBean(username, password); if (loginBean.validate()) { return "SUCCESS"; // 登录成功 } else { return "LOGIN"; }
03-10
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