Login lone= vs.validateSer(login.getUsername(),login.getPassword());始终无法执行

Question

package action;import service.validateService;import service.impl.loginService;import vo.Login;import com.opensymphony.xwork2.ActionSupport;public class LoginAction extends ActionSupport{ private static final long serialVersionUID = 1L; private Login login; protected validateService vs; public String execute() throws Exception{ Login lone= vs.validateSer(login.getUsername(),login.getPassword()); if(lone!= null){ return SUCCESS; } else{ return ERROR; } } public void adduser(String username,String password){ vs.saveService(username, password); } public Login getLogin(){ return login; } public void setLogin(Login login){ this.login=login; } public validateService getValidateService(){ return vs; } public void setValidateService(validateService vs){ this.vs=vs; }}

Answer 1

是怎么个无法运行，把报错信息拿出来。