loginaction.java

利用struts2的验证框架

package com.test.action;

import com.opensymphony.xwork2.ActionSupport;
import com.test.service.LoginService;

public class LoginAction extends ActionSupport {
	
	private String username;
	private String password;
	
	private LoginService loginService;

	public void setLoginService(LoginService loginService) {
		this.loginService = loginService;
	}
	
	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;
	}
	
	
	public String execute() throws Exception {
		
		if(loginService.isvalide(username, password))
			return SUCCESS;
		return INPUT;
		
	}
	
	
	@Override
	public void validate() {

		if(null == username || "".equals(this.getUsername().trim())){
			this.addFieldError("username", "username required");
		}
		
		if(null == password || "".equals(this.getPassword().trim())){
			this.addFieldError("password", "password required");
		}
		
	}
	
	
	

}