异常处理 vaadin
Exception handling vaadin
我有调用登录函数的登录按钮
if (button == loginbutton) {
try {
login();
} catch (Exception e) {
// I am adding a window compnent here that will display the exception with the message
}
}
现在我的登录功能:
private void login() throws Exception {
accessInterface.signIn(m_username.getValue(), m_password.getValue());
m_loginListener.loginSuccessful();
}
现在进入登录功能:
public boolean signIn(String p_username, String p_password) throws Exception {
try {
m_user = UserAuthentication.authenticate(p_username, p_password,
ServiceSettings.getInstance().getAuthenticationServiceLocation());
} catch (Exception e) {
m_logger.error("CATCH",e);
throw e;
}
// Setting the current user
CurrentUser.set(m_user);
return true;
}
现在转到服务的身份验证方法:
public static uInterface authenticate(String p_username, String p_password, String p_Location) throws Exception {
// here it is authenticating user
}
现在,问题是它没有显示 window 组件中的错误或异常。我应该怎么办?我想在 window 组件 vaadin
中捕获我的异常
Windows代码
需要 ui object、windows 标题、消息以及点击详细信息按钮时的异常详细信息
ExceptionDetails.showMessage(getUI(),
"Error in signing in",
"ExceptionInformation",
e.getLocalizedMessage(),
new ActionListenerDetail() {
private static final long serialVersionUID = 1L;
@Override
public void onClickDetails() {
m_username.focus();
m_loginButton.setEnabled(true);
}
}
);
vaadin 中的 SetErrorHandler 可以捕获此错误
我有调用登录函数的登录按钮
if (button == loginbutton) {
try {
login();
} catch (Exception e) {
// I am adding a window compnent here that will display the exception with the message
}
}
现在我的登录功能:
private void login() throws Exception {
accessInterface.signIn(m_username.getValue(), m_password.getValue());
m_loginListener.loginSuccessful();
}
现在进入登录功能:
public boolean signIn(String p_username, String p_password) throws Exception {
try {
m_user = UserAuthentication.authenticate(p_username, p_password,
ServiceSettings.getInstance().getAuthenticationServiceLocation());
} catch (Exception e) {
m_logger.error("CATCH",e);
throw e;
}
// Setting the current user
CurrentUser.set(m_user);
return true;
}
现在转到服务的身份验证方法:
public static uInterface authenticate(String p_username, String p_password, String p_Location) throws Exception {
// here it is authenticating user
}
现在,问题是它没有显示 window 组件中的错误或异常。我应该怎么办?我想在 window 组件 vaadin
中捕获我的异常Windows代码
需要 ui object、windows 标题、消息以及点击详细信息按钮时的异常详细信息
ExceptionDetails.showMessage(getUI(),
"Error in signing in",
"ExceptionInformation",
e.getLocalizedMessage(),
new ActionListenerDetail() {
private static final long serialVersionUID = 1L;
@Override
public void onClickDetails() {
m_username.focus();
m_loginButton.setEnabled(true);
}
}
);
vaadin 中的 SetErrorHandler 可以捕获此错误