编写Bean类

import java.io.Serializable;

//实现 Serializable 接口 表明当前类为 序列化类
public class LoginBean implements Serializable {

private String username;
private String password;

public LoginBean() {
super();
}

public LoginBean(String username, String password) {
this.username = username;
this.password = password;
}

public String getUsername() {
return username;
}

public void setUsername(String username) {
this.username = username;
}

public String getPassword(http://www.amjmh.com/v/BIBRGZ_558768/) {
return password;
}

public void setPassword(String password) {
this.password = password;
}

@Override
public String toString() {
return "LoginBean{" +
"username='" + username + '\'' +
", password='" + password + '\'' +
'}';
}
}