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cas登陆页定义异常提⽰（中英⽂等

cas登陆页定义异常提⽰（中英⽂等）：

两种异常的处理⽅式不同，1，是通过配置⽂件指定⽤哪个异常类和⽅法2，是通过继承AuthenticationViaFormAction类实现（见后

⽂）

不同异常的提⽰，区分中英⽂

1，定义好⾃定义异常

2，在执⾏异常的地⽅抛出

3，定义好捕捉异常的处理器

property属性⽂件:

tNotFoundException=户名或密码错误.

LoginException=户名或密码错误.

tNotFoundExceptionEn=Invalidcredentials.

LoginExceptionEn=Invalidcredentials.

1，定义好⾃定义异常

tor;

xception;

/**

*Signalsthaturauthenticationfailed.

*

*

ThixceptionisthrownbyLoginModulesifauthenticationfailed.

*Forexample,aLoginModulethrowsthixceptionif

*theurenteredanincorrectpassword.

*

*/

publicclassFailedLoginExceptionEnextendsLoginException{

privatestaticfinallongrialVersionUID=816286L;

/**

*l

*messageisaStringthatdescribesthisparticularexception.

*/

publicFailedLoginExceptionEn(){

super();

}

/**

*ConstructsaFailedLoginExceptionwiththespecifieddetail

*lmessageisaStringthatdescribesthisparticular

*exception.

*

*

*

*@parammsgthedetailmessage.

*/

publicFailedLoginExceptionEn(Stringmsg){

super(msg);

}

}

2，在执⾏异常的地⽅抛出（这⾥覆写后要修改配置⽂件引⽤此类的路径）

publicclassQueryDatabaAuthenticationHandler

extendsAbstractJdbcUrnamePasswordAuthenticationHandler

{

{

@NotNull

privateStringsql;

protectedfinalHandlerResultauthenticateUrnamePasswordInternal(UrnamePasswordCredentialcredential)

throwsGeneralSecurityException,PreventedException

{

RemembermeAndCaptchacuCredential=(RemembermeAndCaptcha)credential;

Stringurname=rname();

intwebflag=flag();

StringencryptedPassword=getPasswordEncoder().encode(sword());

try{

StringdbPassword=(String)getJdbcTemplate().queryForObject(,,newObject[]{urname});

if(!(encryptedPassword)){

if(webflag==0){///中英⽂

thrownewFailedLoginException("Passworddoesnotmatchvalueonrecord.");//哪种异常

}el{

thrownewFailedLoginExceptionEn("Passworddoesnotmatchvalueonrecord.");

}

}

}catch(IncorrectResultSizeDataAccessExceptione){

if(ualSize()==0){

thrownewAccountNotFoundException(urname+"notfoundwithSQLquery");

}

thrownewFailedLoginException("Multiplerecordsfoundfor"+urname);

}

catch(DataAccessExceptione){

thrownewPreventedException("SQLexceptionwhileexecutingqueryfor"+urname,e);

}

returncreateHandlerResult(credential,newSimplePrincipal(urname),null);

}

3，定义好捕捉异常的处理器

publicclassAuthenticationExceptionHandler

{

privatestaticfinalStringUNKNOWN="UNKNOWN";

privatestaticfinalStringDEFAULT_MESSAGE_BUNDLE_PREFIX="authenticationFailure.";

privatestaticfinalList>DEFAULT_ERROR_LIST=newArrayList();

privatefinalLoggerlogger=ger(getClass());

static{

DEFAULT_ERROR_();

DEFAULT_ERROR_();

DEFAULT_ERROR_();

DEFAULT_ERROR_();

DEFAULT_ERROR_();

DEFAULT_ERROR_();

DEFAULT_ERROR_();

DEFAULT_ERROR_();

DEFAULT_ERROR_();

}

｝

：

//类中

要增加⽐对哪些异常（复写）

AuthenticationExceptionHandler这个源码⾥⾯根据异常类名拼接配置属性，并获取值

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被注⼊的这个到那个视图

这个视图有什么属性